{"id":567,"date":"2026-01-05T12:37:34","date_gmt":"2026-01-05T12:37:34","guid":{"rendered":"https:\/\/www.millboard.com\/en-gb\/?page_id=567"},"modified":"2026-04-02T15:54:55","modified_gmt":"2026-04-02T14:54:55","slug":"envello-siding-faqs","status":"publish","type":"page","link":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/","title":{"rendered":"Envello\u00a0Siding\u00a0FAQS"},"content":{"rendered":"<header class=\"page-header wp-block alignfull has-brand-1-background-color has-background page-header--type--page has-breadcrumbs\">\n    <div class=\"page-header__inner\">\n                    <!-- Breadcrumbs -->\n            <div class=\"page-header__breadcrumbs\">\n                <nav class=\"breadcrumbs\">\n    <span class=\"breadcrumbs__yoast-wrapper\"><span><a href=\"https:\/\/www.millboard.com\/en-us\/\">Home<\/a><\/span><\/span><\/nav>\n            <\/div>\n        \n        <div class=\"page-header__wrapper\">\n            <div class=\"page-header__image-wrapper page-header__image-wrapper--no-image\">\n                            <\/div>\n\n            <div class=\"page-header__content page-header__content--first\">\n                <div class=\"page-header__header\">\n                    \n                                            <h1 class=\"page-header__heading is-style-typestyle-h1\">Envello Siding FAQs<\/h1>\n                                    <\/div>\n\n                            <\/div>\n                <div class=\"page-header__content page-header__content--last\">\n                                                <div class=\"page-header__description\">\n                        <p>A collection of frequently asked questions about Millboard Envello Siding.<\/p>\n                    <\/div>\n                \n                \n                \n                            <\/div>\n        <\/div>\n    <\/div>\n\n    <\/header>\n\n    <div class=\"woocommerce-notices-wrapper\"><\/div>\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<section data-allow-multiple=\"false\" class=\"accordion wp-block alignfull\">\n    <div class=\"accordion__inner\">\n\n        <div class=\"accordion__header\">\n\n            \n            \n            \n            \n        <\/div>\n\n        <div class=\"accordion__items\">\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"true\" aria-controls=\"accordion-panel-1\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"what-should-i-expect-when-first-unpacking-my-envello\"><h3 class=\"accordion__item__heading\">What should I expect when first unpacking my Envello?<\/h3><\/button>\n\n    <div id=\"accordion-panel-1\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"what-should-i-expect-when-first-unpacking-my-envello\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>When you take your first look at your new Envello Siding boards, you will be amazed at the attention to detail and quality before you. You&#8217;ll notice how lightweight yet durable the boards are, ready for immediate use.<\/p>\n<p>There are a few things we advise users to be aware of before diving in and building that dream project:<\/p>\n<p>+ A release agent will be present on the surface of the boards when you take delivery of them, which may give a slightly shiny effect. This release agent has been applied so that the finished board can easily be removed from our molds and will disperse in the weeks following installation.<\/p>\n<p>+ Like wood, no two Envello Cladding boards are the same color, with the subtle differences giving the most natural appearance. This is to give your cladding all the good looks of wood cladding, but all the structural longevity of a composite material.<\/p>\n<p>+ Our boards are molded under extreme pressure and not extruded, so some dimensional variance is expected. The tolerances that we permit for the size of our cladding boards are limited to: Width: \u00b1 3mm. Length: \u00b1 5mm. Thickness: \u00b1 2mm.<\/p>\n<p>+ As with wood, it may be necessary to trim the ends of the boards during installation to achieve a flush, clean finish.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-2\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"are-envello-siding-colors-consistent\"><h3 class=\"accordion__item__heading\">Are Envello siding colors consistent?<\/h3><\/button>\n\n    <div id=\"accordion-panel-2\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"are-envello-siding-colors-consistent\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>Millboard has been designed to replicate the natural variances of wood and we do not intend for the product to have identical shades. Buying all the Envello cladding you need at the same time should help to ensure that the color is as consistent as possible.<\/p>\n<p>Samples are provided as a representation of the product and we would encourage customers to view full boards in a showroom, in order to fully appreciate the product, prior to purchase.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-3\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"will-my-envello-change-color-over-time\"><h3 class=\"accordion__item__heading\">Will my Envello change color over time?<\/h3><\/button>\n\n    <div id=\"accordion-panel-3\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"will-my-envello-change-color-over-time\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>We go to extraordinary lengths to recreate the look of natural wood. As with all products exposed to the elements including sunlight, snow and rain, Millboard will naturally weather and tone down over time. Slight yellowing, especially in the deeper grain of our cladding boards will be visible and loss of gloss is also expected and intentional. This is in order for us to replicate that natural piece of wood it has so carefully been molded against along with our unique hand colored process.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-4\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"are-the-envello-siding-boards-fire-rated\"><h3 class=\"accordion__item__heading\">Are the Envello siding boards fire rated?<\/h3><\/button>\n\n    <div id=\"accordion-panel-4\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"are-the-envello-siding-boards-fire-rated\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>Our Shadow Line+ and Board &amp; Batten+ siding boards have been tested to ASTM E84 and have a flame spread index of less than 25. They are also certified for use in WUI zones when install in accordance with our installation guide, as per CalFire &#8211;\u00a0<a href=\"https:\/\/calfire.govmotus.org\/GOVFirePublicReport\/ReportPublic?AppNum=CF24014644BML&amp;type=BMLLINGLISTNEW\"><u>link here<\/u><\/a>.<\/p>\n<p>*The responsibility for the siding\u2019s suitability in the required location is to be determined by a certified building professional (code official, building insurance, fire officer, etc). Millboard will not be held responsible for incorrect specification, application, or product installation in areas not in accordance with government and state guidance. Current guidance should be gained from the government or state website relating to the geographical project location. Envello should not be used as an interior finish, where a smoke development index of less than 450 is required.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-5\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"does-envello-siding-expand-or-contract\"><h3 class=\"accordion__item__heading\">Does Envello siding expand or contract?<\/h3><\/button>\n\n    <div id=\"accordion-panel-5\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"does-envello-siding-expand-or-contract\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>As Millboard is made from a resin mineral composition it is stable in comparison to wood or composites based on wood, the amount of movement that is acceptable is up to 0.2%.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-6\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"why-is-there-a-slight-variation-in-board-dimensions\"><h3 class=\"accordion__item__heading\">Why is there a slight variation in board dimensions?<\/h3><\/button>\n\n    <div id=\"accordion-panel-6\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"why-is-there-a-slight-variation-in-board-dimensions\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>There will always be a slight variance in the board\u2019s dimensions due to the fact that we mold from natural oak, and due to the pressure of the molding process. Despite this, we calibrate the boards to maintain as consistent a profile as possible. The manufacturing tolerances are: Width: \u00b1 3mm. Length: \u00b1 5mm. Thickness: \u00b1 2mm.<br \/>\nWhen working with the boards, a level may be required to help keep the boards running upright or level. In order to achieve straight and consistent 5-6mm gapping between the shadow Line+ boards, it may be necessary to use our Millboard Multi-Spacers during the installation process.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-7\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"does-envello-siding-mark\"><h3 class=\"accordion__item__heading\">Does Envello siding mark?<\/h3><\/button>\n\n    <div id=\"accordion-panel-7\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"does-envello-siding-mark\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>The elastomeric finish is highly resistant to scratches, and everyday wear and tear. Take care to keep sharp objects away from the boards, as they can leave marks if moved against the boards surface. The risk of marking from strong dyes and stains will be reduced if removed as soon as possible, this also applies to cooking oils or fats that come into contact with the surface of the boards.<\/p>\n<p>Please ensure to cover and protect the boards from any surrounding building or landscaping works, painting, rendering or cementitious dust that could contaminate or mark the surface, especially if the boards have been recently installed. Millboard will not be held responsible for issues arising from the boards being affected by foreign substances as this does not represent a fault with the product. We are able to recommend cleaning solutions that may be used to address contamination concerns or in situations where our guidance has not been followed.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-8\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"how-do-i-clean-my-envello-siding\"><h3 class=\"accordion__item__heading\">How do I clean my Envello Siding?<\/h3><\/button>\n\n    <div id=\"accordion-panel-8\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"how-do-i-clean-my-envello-siding\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>If the board surface becomes dirty during installation, this should be cleaned as soon as possible using warm soapy water (dishwashing liquid) and a brush. Clean your siding when required to remove general dirt particles. Start cleaning at the top of the cladding and work downwards along the grain. It is best to use a brush with an extendable handle to clean the boards.<\/p>\n<p>Cover the boards from any surrounding building works or painting that could mark the surface of the boards. Stubborn marks may be removed with a range of different cleaners depending on the mark. Please contact us for more information on technical@millboard.co.uk.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-9\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"can-i-use-a-pressure-washer-on-my-envello-siding\"><h3 class=\"accordion__item__heading\">Can I use a pressure washer on my Envello siding?<\/h3><\/button>\n\n    <div id=\"accordion-panel-9\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"can-i-use-a-pressure-washer-on-my-envello-siding\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>Pressure washers can be used carefully on Envello siding for cleaning and rinsing.<\/p>\n<p>We would recommend following the below guidelines:<\/p>\n<ul>\n<li>A PSI no greater than 2,000 should be used, with a 40 to 60 degree spread fan tip<\/li>\n<li>The head should always be kept around 300mm away from the surface<\/li>\n<li>Direct, prolonged and intense contact could damage the surface of the boards<\/li>\n<\/ul>\n<p>Take extra care when using a pressure washer around windows, doors and cut ends of boards<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"true\" aria-controls=\"accordion-panel-10\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"where-can-i-use-envello-siding\"><h3 class=\"accordion__item__heading\">Where can I use Envello siding?<\/h3><\/button>\n\n    <div id=\"accordion-panel-10\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"where-can-i-use-envello-siding\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>Envello siding is extremely versatile and can be used for most low-level cladding areas (subject to building control). It can be used for siding on low-level residential and commercial buildings, garden rooms, home offices, furniture, soffits and fascia, outdoor kitchens and more. Envello can be used as the decorative face for most outdoor designs, as long as it is fixed to a structural element. All areas subject to the relevant government regulations\/building standards.<\/p>\n<p>&nbsp;<\/p>\n<p>The responsibility for the decking and cladding\u2019s suitability in the required location is to be determined by a certified building professional (building control, building insurance, fire officer, etc). Millboard will not be held responsible for incorrect specification, application, or product installation in areas not in accordance with government guidance, in the UK or abroad. Current guidance should be gained from the government website relating to the geographical project location.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-11\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"can-you-paint-composite-siding\"><h3 class=\"accordion__item__heading\">Can you paint composite siding?<\/h3><\/button>\n\n    <div id=\"accordion-panel-11\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"can-you-paint-composite-siding\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>Millboard\u2019s composite siding range is designed to provide a long-lasting woodgrain finish in a variety of colors. Painting over the durable finish may compromise its aesthetic appeal and low-maintenance advantages. Touch-up paint is available for improving the appearance of cut ends.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"true\" aria-controls=\"accordion-panel-12\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"do-you-need-planning-permission-for-composite-siding\"><h3 class=\"accordion__item__heading\">Do you need planning permission for composite siding?<\/h3><\/button>\n\n    <div id=\"accordion-panel-12\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"do-you-need-planning-permission-for-composite-siding\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>Planning permission for composite siding is generally not required unless you\u2019re working on a listed building, live in an area of outstanding natural beauty, or are in a conservation area. Siding projects using materials that complement the natural environment and existing structures are more likely to be approved, such as true-to-life wood-effect siding.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-13\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"how-to-install-composite-siding\"><h3 class=\"accordion__item__heading\">How to install composite siding?<\/h3><\/button>\n\n    <div id=\"accordion-panel-13\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"how-to-install-composite-siding\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>To install Millboard Envello Composite Siding boards, ensure you have a structurally sound base and follow the cladding installation guide. Secure battens vertically (and horizontally if installing vertical panels), spacing them according to your siding requirements.<\/p>\n<p>Begin at the bottom (for horizontal siding) with a starter strip, maintaining a 10mm ventilation gap. Use the recommended fixings to secure the composite boards, leaving consistent spacing between boards. You must ensure proper ventilation for long-term performance.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-14\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"how-long-does-composite-siding-last\"><h3 class=\"accordion__item__heading\">How long does composite siding last?<\/h3><\/button>\n\n    <div id=\"accordion-panel-14\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"how-long-does-composite-siding-last\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>Millboard Composite siding, made from advanced composite materials like mineral stone, polymer resin, and fiberglass, is designed to withstand harsh weather conditions while retaining its beauty. The UV-stable pigment and non-porous core help ensure long-lasting appeal and minimal maintenance.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-15\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"does-envello-siding-come-with-a-warranty\"><h3 class=\"accordion__item__heading\">Does Envello siding come with a warranty?<\/h3><\/button>\n\n    <div id=\"accordion-panel-15\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"does-envello-siding-come-with-a-warranty\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>Yes Millboard provide a US-backed Limited Structural 15 Year Warranty on Envello products, to provide customers with piece of mind.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-16\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"how-much-does-composite-siding-cost\"><h3 class=\"accordion__item__heading\">How much does composite siding cost?<\/h3><\/button>\n\n    <div id=\"accordion-panel-16\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"how-much-does-composite-siding-cost\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>Millboard\u2019s luxury composite siding boards are priced to reflect their quality and durability. Speak to a Millboard supplier to start a cladding project.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-17\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"how-to-cut-composite-siding\"><h3 class=\"accordion__item__heading\">How to cut composite siding?<\/h3><\/button>\n\n    <div id=\"accordion-panel-17\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"how-to-cut-composite-siding\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>Cutting composite siding boards is straightforward with tools like a miter saw, jigsaw, or hand saw. Always wear appropriate PPE, such as gloves, long sleeves, a dust mask, safety glasses, and ear defenders, to ensure safety during the installation process. Refer to the cladding installation guide for detailed instructions on cutting and handling.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"accordion__item wp-block\">\n    <button aria-expanded=\"false\" aria-controls=\"accordion-panel-18\" type=\"button\" class=\"accordion__item__trigger js-accordion-button\" id=\"what-is-composite-siding-made-of\"><h3 class=\"accordion__item__heading\">What is composite siding made of?<\/h3><\/button>\n\n    <div id=\"accordion-panel-18\" class=\"accordion__item__panel js-expandable-element\" aria-labelledby=\"what-is-composite-siding-made-of\" hidden=\"true\" aria-hidden=\"true\">\n        <div class=\"accordion__item__panel__inner\">\n            <p>Millboard Composite cladding is crafted from polymer resins, recycled minerals, and reinforced with fibreglass. This composite material resists rotting, staining, and weather damage while providing excellent durability and an additional layer of insulation. The low-maintenance finish is achieved with a special pigment composition which is highly resistant to UV fading.<\/p>\n\n                    <\/div>\n    <\/div>\n<\/div>\n\n<\/div>\n    <\/div>\n<\/section>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":10,"featured_media":0,"parent":4187,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_yoast_wpseo_title":"Composite Siding FAQs \u2013 Envello Answered | Millboard","_yoast_wpseo_metadesc":"Answers to your most common Envello composite siding questions covering installation, maintenance, durability and performance across all profiles.","_yoast_wpseo_canonical":"","_yoast_wpseo_opengraph-title":"","_yoast_wpseo_opengraph-description":"","content-type":"","footnotes":""},"class_list":["post-567","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast 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property=\"og:url\" content=\"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/\" \/>\n<meta property=\"og:site_name\" content=\"EN-US - Residential\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-02T14:54:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/SL-Ebony-Grey-Shoot.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1263\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" 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Asked questions\",\"item\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Envello\u00a0Siding\u00a0FAQS\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/#website\",\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/\",\"name\":\"Millboard\",\"description\":\"Live. Life. Outside.\",\"alternateName\":\"The Millboard company\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#what-should-i-expect-when-first-unpacking-my-envello\",\"position\":1,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#what-should-i-expect-when-first-unpacking-my-envello\",\"name\":\"What should I expect when first unpacking my Envello? \",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"When you take your first look at your new Envello Siding boards, you will be amazed at the attention to detail and quality before you. You'll notice how lightweight yet durable the boards are, ready for immediate use.\\r\\n\\r\\nThere are a few things we advise users to be aware of before diving in and building that dream project:\\r\\n\\r\\n+ A release agent will be present on the surface of the boards when you take delivery of them, which may give a slightly shiny effect. This release agent has been applied so that the finished board can easily be removed from our molds and will disperse in the weeks following installation.\\r\\n\\r\\n+ Like wood, no two Envello Cladding boards are the same color, with the subtle differences giving the most natural appearance. This is to give your cladding all the good looks of wood cladding, but all the structural longevity of a composite material.\\r\\n\\r\\n+ Our boards are molded under extreme pressure and not extruded, so some dimensional variance is expected. The tolerances that we permit for the size of our cladding boards are limited to: Width: \u00b1 3mm. Length: \u00b1 5mm. Thickness: \u00b1 2mm.\\r\\n\\r\\n+ As with wood, it may be necessary to trim the ends of the boards during installation to achieve a flush, clean finish.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#are-envello-siding-colors-consistent\",\"position\":2,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#are-envello-siding-colors-consistent\",\"name\":\"Are Envello siding colors consistent? \",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Millboard has been designed to replicate the natural variances of wood and we do not intend for the product to have identical shades. Buying all the Envello cladding you need at the same time should help to ensure that the color is as consistent as possible.\\r\\n\\r\\nSamples are provided as a representation of the product and we would encourage customers to view full boards in a showroom, in order to fully appreciate the product, prior to purchase.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#will-my-envello-change-color-over-time\",\"position\":3,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#will-my-envello-change-color-over-time\",\"name\":\"Will my Envello change color over time?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"We go to extraordinary lengths to recreate the look of natural wood. As with all products exposed to the elements including sunlight, snow and rain, Millboard will naturally weather and tone down over time. Slight yellowing, especially in the deeper grain of our cladding boards will be visible and loss of gloss is also expected and intentional. This is in order for us to replicate that natural piece of wood it has so carefully been molded against along with our unique hand colored process.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#are-the-envello-siding-boards-fire-rated\",\"position\":4,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#are-the-envello-siding-boards-fire-rated\",\"name\":\"Are the Envello siding boards fire rated?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Our Shadow Line+ and Board &amp; Batten+ siding boards have been tested to ASTM E84 and have a flame spread index of less than 25. They are also certified for use in WUI zones when install in accordance with our installation guide, as per CalFire -\u00a0<a href=\\\"https:\\\/\\\/calfire.govmotus.org\\\/GOVFirePublicReport\\\/ReportPublic?AppNum=CF24014644BML&amp;type=BMLLINGLISTNEW\\\"><u>link here<\\\/u><\\\/a>.\\r\\n\\r\\n*The responsibility for the siding\u2019s suitability in the required location is to be determined by a certified building professional (code official, building insurance, fire officer, etc). Millboard will not be held responsible for incorrect specification, application, or product installation in areas not in accordance with government and state guidance. Current guidance should be gained from the government or state website relating to the geographical project location. Envello should not be used as an interior finish, where a smoke development index of less than 450 is required.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#does-envello-siding-expand-or-contract\",\"position\":5,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#does-envello-siding-expand-or-contract\",\"name\":\"Does Envello siding expand or contract?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"As Millboard is made from a resin mineral composition it is stable in comparison to wood or composites based on wood, the amount of movement that is acceptable is up to 0.2%.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#why-is-there-a-slight-variation-in-board-dimensions\",\"position\":6,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#why-is-there-a-slight-variation-in-board-dimensions\",\"name\":\"Why is there a slight variation in board dimensions? \",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"There will always be a slight variance in the board\u2019s dimensions due to the fact that we mold from natural oak, and due to the pressure of the molding process. Despite this, we calibrate the boards to maintain as consistent a profile as possible. The manufacturing tolerances are: Width: \u00b1 3mm. Length: \u00b1 5mm. Thickness: \u00b1 2mm.\\r\\nWhen working with the boards, a level may be required to help keep the boards running upright or level. In order to achieve straight and consistent 5-6mm gapping between the shadow Line+ boards, it may be necessary to use our Millboard Multi-Spacers during the installation process.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#does-envello-siding-mark\",\"position\":7,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#does-envello-siding-mark\",\"name\":\"Does Envello siding mark?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The elastomeric finish is highly resistant to scratches, and everyday wear and tear. Take care to keep sharp objects away from the boards, as they can leave marks if moved against the boards surface. The risk of marking from strong dyes and stains will be reduced if removed as soon as possible, this also applies to cooking oils or fats that come into contact with the surface of the boards.\\r\\n\\r\\nPlease ensure to cover and protect the boards from any surrounding building or landscaping works, painting, rendering or cementitious dust that could contaminate or mark the surface, especially if the boards have been recently installed. Millboard will not be held responsible for issues arising from the boards being affected by foreign substances as this does not represent a fault with the product. We are able to recommend cleaning solutions that may be used to address contamination concerns or in situations where our guidance has not been followed.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#how-do-i-clean-my-envello-siding\",\"position\":8,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#how-do-i-clean-my-envello-siding\",\"name\":\"How do I clean my Envello Siding?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"If the board surface becomes dirty during installation, this should be cleaned as soon as possible using warm soapy water (dishwashing liquid) and a brush. Clean your siding when required to remove general dirt particles. Start cleaning at the top of the cladding and work downwards along the grain. It is best to use a brush with an extendable handle to clean the boards.\\r\\n\\r\\nCover the boards from any surrounding building works or painting that could mark the surface of the boards. Stubborn marks may be removed with a range of different cleaners depending on the mark. Please contact us for more information on technical@millboard.co.uk.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#can-i-use-a-pressure-washer-on-my-envello-siding\",\"position\":9,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#can-i-use-a-pressure-washer-on-my-envello-siding\",\"name\":\"Can I use a pressure washer on my Envello siding?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Pressure washers can be used carefully on Envello siding for cleaning and rinsing.\\r\\n\\r\\nWe would recommend following the below guidelines:\\r\\n<ul>\\r\\n \\t<li>A PSI no greater than 2,000 should be used, with a 40 to 60 degree spread fan tip<\\\/li>\\r\\n \\t<li>The head should always be kept around 300mm away from the surface<\\\/li>\\r\\n \\t<li>Direct, prolonged and intense contact could damage the surface of the boards<\\\/li>\\r\\n<\\\/ul>\\r\\nTake extra care when using a pressure washer around windows, doors and cut ends of boards\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#where-can-i-use-envello-siding\",\"position\":10,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#where-can-i-use-envello-siding\",\"name\":\"Where can I use Envello siding?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Envello siding is extremely versatile and can be used for most low-level cladding areas (subject to building control). It can be used for siding on low-level residential and commercial buildings, garden rooms, home offices, furniture, soffits and fascia, outdoor kitchens and more. Envello can be used as the decorative face for most outdoor designs, as long as it is fixed to a structural element. All areas subject to the relevant government regulations\\\/building standards.\\r\\n\\r\\n&nbsp;\\r\\n\\r\\nThe responsibility for the decking and cladding\u2019s suitability in the required location is to be determined by a certified building professional (building control, building insurance, fire officer, etc). Millboard will not be held responsible for incorrect specification, application, or product installation in areas not in accordance with government guidance, in the UK or abroad. Current guidance should be gained from the government website relating to the geographical project location.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#can-you-paint-composite-siding\",\"position\":11,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#can-you-paint-composite-siding\",\"name\":\"Can you paint composite siding? \",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Millboard\u2019s composite siding range is designed to provide a long-lasting woodgrain finish in a variety of colors. Painting over the durable finish may compromise its aesthetic appeal and low-maintenance advantages. Touch-up paint is available for improving the appearance of cut ends.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#do-you-need-planning-permission-for-composite-siding\",\"position\":12,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#do-you-need-planning-permission-for-composite-siding\",\"name\":\"Do you need planning permission for composite siding?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Planning permission for composite siding is generally not required unless you\u2019re working on a listed building, live in an area of outstanding natural beauty, or are in a conservation area. Siding projects using materials that complement the natural environment and existing structures are more likely to be approved, such as true-to-life wood-effect siding.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#how-to-install-composite-siding\",\"position\":13,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#how-to-install-composite-siding\",\"name\":\"How to install composite siding?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"To install Millboard Envello Composite Siding boards, ensure you have a structurally sound base and follow the cladding installation guide. Secure battens vertically (and horizontally if installing vertical panels), spacing them according to your siding requirements.\\r\\n\\r\\nBegin at the bottom (for horizontal siding) with a starter strip, maintaining a 10mm ventilation gap. Use the recommended fixings to secure the composite boards, leaving consistent spacing between boards. You must ensure proper ventilation for long-term performance.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#how-long-does-composite-siding-last\",\"position\":14,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#how-long-does-composite-siding-last\",\"name\":\"How long does composite siding last?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Millboard Composite siding, made from advanced composite materials like mineral stone, polymer resin, and fiberglass, is designed to withstand harsh weather conditions while retaining its beauty. The UV-stable pigment and non-porous core help ensure long-lasting appeal and minimal maintenance.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#does-envello-siding-come-with-a-warranty\",\"position\":15,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#does-envello-siding-come-with-a-warranty\",\"name\":\"Does Envello siding come with a warranty?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes Millboard provide a US-backed Limited Structural 15 Year Warranty on Envello products, to provide customers with piece of mind.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#how-much-does-composite-siding-cost\",\"position\":16,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#how-much-does-composite-siding-cost\",\"name\":\"How much does composite siding cost?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Millboard\u2019s luxury composite siding boards are priced to reflect their quality and durability. Speak to a Millboard supplier to start a cladding project.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#how-to-cut-composite-siding\",\"position\":17,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#how-to-cut-composite-siding\",\"name\":\"How to cut composite siding? \",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cutting composite siding boards is straightforward with tools like a miter saw, jigsaw, or hand saw. Always wear appropriate PPE, such as gloves, long sleeves, a dust mask, safety glasses, and ear defenders, to ensure safety during the installation process. Refer to the cladding installation guide for detailed instructions on cutting and handling.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#what-is-composite-siding-made-of\",\"position\":18,\"url\":\"https:\\\/\\\/www.millboard.com\\\/en-us\\\/frequently-asked-questions\\\/envello-siding-faqs\\\/#what-is-composite-siding-made-of\",\"name\":\"What is composite siding made of? \",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Millboard Composite cladding is crafted from polymer resins, recycled minerals, and reinforced with fibreglass. This composite material resists rotting, staining, and weather damage while providing excellent durability and an additional layer of insulation. 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Residential","article_modified_time":"2026-04-02T14:54:55+00:00","og_image":[{"width":2000,"height":1263,"url":"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/02\/SL-Ebony-Grey-Shoot.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":["WebPage","FAQPage"],"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/","url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/","name":"Composite Siding FAQs \u2013 Envello Answered | Millboard","isPartOf":{"@id":"https:\/\/www.millboard.com\/en-us\/#website"},"datePublished":"2026-01-05T12:37:34+00:00","dateModified":"2026-04-02T14:54:55+00:00","description":"Answers to your most common Envello composite siding questions covering installation, maintenance, durability and performance across all profiles.","breadcrumb":{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/"]}],"mainEntity":[{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#what-should-i-expect-when-first-unpacking-my-envello"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#are-envello-siding-colors-consistent"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#will-my-envello-change-color-over-time"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#are-the-envello-siding-boards-fire-rated"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#does-envello-siding-expand-or-contract"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#why-is-there-a-slight-variation-in-board-dimensions"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#does-envello-siding-mark"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-do-i-clean-my-envello-siding"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#can-i-use-a-pressure-washer-on-my-envello-siding"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#where-can-i-use-envello-siding"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#can-you-paint-composite-siding"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#do-you-need-planning-permission-for-composite-siding"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-to-install-composite-siding"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-long-does-composite-siding-last"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#does-envello-siding-come-with-a-warranty"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-much-does-composite-siding-cost"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-to-cut-composite-siding"},{"@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#what-is-composite-siding-made-of"}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.millboard.com\/en-us\/"},{"@type":"ListItem","position":2,"name":"Frequently Asked questions","item":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/"},{"@type":"ListItem","position":3,"name":"Envello\u00a0Siding\u00a0FAQS"}]},{"@type":"WebSite","@id":"https:\/\/www.millboard.com\/en-us\/#website","url":"https:\/\/www.millboard.com\/en-us\/","name":"Millboard","description":"Live. Life. Outside.","alternateName":"The Millboard company","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.millboard.com\/en-us\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#what-should-i-expect-when-first-unpacking-my-envello","position":1,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#what-should-i-expect-when-first-unpacking-my-envello","name":"What should I expect when first unpacking my Envello? ","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"When you take your first look at your new Envello Siding boards, you will be amazed at the attention to detail and quality before you. You'll notice how lightweight yet durable the boards are, ready for immediate use.\r\n\r\nThere are a few things we advise users to be aware of before diving in and building that dream project:\r\n\r\n+ A release agent will be present on the surface of the boards when you take delivery of them, which may give a slightly shiny effect. This release agent has been applied so that the finished board can easily be removed from our molds and will disperse in the weeks following installation.\r\n\r\n+ Like wood, no two Envello Cladding boards are the same color, with the subtle differences giving the most natural appearance. This is to give your cladding all the good looks of wood cladding, but all the structural longevity of a composite material.\r\n\r\n+ Our boards are molded under extreme pressure and not extruded, so some dimensional variance is expected. The tolerances that we permit for the size of our cladding boards are limited to: Width: \u00b1 3mm. Length: \u00b1 5mm. Thickness: \u00b1 2mm.\r\n\r\n+ As with wood, it may be necessary to trim the ends of the boards during installation to achieve a flush, clean finish.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#are-envello-siding-colors-consistent","position":2,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#are-envello-siding-colors-consistent","name":"Are Envello siding colors consistent? ","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Millboard has been designed to replicate the natural variances of wood and we do not intend for the product to have identical shades. Buying all the Envello cladding you need at the same time should help to ensure that the color is as consistent as possible.\r\n\r\nSamples are provided as a representation of the product and we would encourage customers to view full boards in a showroom, in order to fully appreciate the product, prior to purchase.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#will-my-envello-change-color-over-time","position":3,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#will-my-envello-change-color-over-time","name":"Will my Envello change color over time?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"We go to extraordinary lengths to recreate the look of natural wood. As with all products exposed to the elements including sunlight, snow and rain, Millboard will naturally weather and tone down over time. Slight yellowing, especially in the deeper grain of our cladding boards will be visible and loss of gloss is also expected and intentional. This is in order for us to replicate that natural piece of wood it has so carefully been molded against along with our unique hand colored process.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#are-the-envello-siding-boards-fire-rated","position":4,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#are-the-envello-siding-boards-fire-rated","name":"Are the Envello siding boards fire rated?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Our Shadow Line+ and Board &amp; Batten+ siding boards have been tested to ASTM E84 and have a flame spread index of less than 25. They are also certified for use in WUI zones when install in accordance with our installation guide, as per CalFire -\u00a0<a href=\"https:\/\/calfire.govmotus.org\/GOVFirePublicReport\/ReportPublic?AppNum=CF24014644BML&amp;type=BMLLINGLISTNEW\"><u>link here<\/u><\/a>.\r\n\r\n*The responsibility for the siding\u2019s suitability in the required location is to be determined by a certified building professional (code official, building insurance, fire officer, etc). Millboard will not be held responsible for incorrect specification, application, or product installation in areas not in accordance with government and state guidance. Current guidance should be gained from the government or state website relating to the geographical project location. Envello should not be used as an interior finish, where a smoke development index of less than 450 is required.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#does-envello-siding-expand-or-contract","position":5,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#does-envello-siding-expand-or-contract","name":"Does Envello siding expand or contract?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"As Millboard is made from a resin mineral composition it is stable in comparison to wood or composites based on wood, the amount of movement that is acceptable is up to 0.2%.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#why-is-there-a-slight-variation-in-board-dimensions","position":6,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#why-is-there-a-slight-variation-in-board-dimensions","name":"Why is there a slight variation in board dimensions? ","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"There will always be a slight variance in the board\u2019s dimensions due to the fact that we mold from natural oak, and due to the pressure of the molding process. Despite this, we calibrate the boards to maintain as consistent a profile as possible. The manufacturing tolerances are: Width: \u00b1 3mm. Length: \u00b1 5mm. Thickness: \u00b1 2mm.\r\nWhen working with the boards, a level may be required to help keep the boards running upright or level. In order to achieve straight and consistent 5-6mm gapping between the shadow Line+ boards, it may be necessary to use our Millboard Multi-Spacers during the installation process.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#does-envello-siding-mark","position":7,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#does-envello-siding-mark","name":"Does Envello siding mark?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The elastomeric finish is highly resistant to scratches, and everyday wear and tear. Take care to keep sharp objects away from the boards, as they can leave marks if moved against the boards surface. The risk of marking from strong dyes and stains will be reduced if removed as soon as possible, this also applies to cooking oils or fats that come into contact with the surface of the boards.\r\n\r\nPlease ensure to cover and protect the boards from any surrounding building or landscaping works, painting, rendering or cementitious dust that could contaminate or mark the surface, especially if the boards have been recently installed. Millboard will not be held responsible for issues arising from the boards being affected by foreign substances as this does not represent a fault with the product. We are able to recommend cleaning solutions that may be used to address contamination concerns or in situations where our guidance has not been followed.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-do-i-clean-my-envello-siding","position":8,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-do-i-clean-my-envello-siding","name":"How do I clean my Envello Siding?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"If the board surface becomes dirty during installation, this should be cleaned as soon as possible using warm soapy water (dishwashing liquid) and a brush. Clean your siding when required to remove general dirt particles. Start cleaning at the top of the cladding and work downwards along the grain. It is best to use a brush with an extendable handle to clean the boards.\r\n\r\nCover the boards from any surrounding building works or painting that could mark the surface of the boards. Stubborn marks may be removed with a range of different cleaners depending on the mark. Please contact us for more information on technical@millboard.co.uk.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#can-i-use-a-pressure-washer-on-my-envello-siding","position":9,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#can-i-use-a-pressure-washer-on-my-envello-siding","name":"Can I use a pressure washer on my Envello siding?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Pressure washers can be used carefully on Envello siding for cleaning and rinsing.\r\n\r\nWe would recommend following the below guidelines:\r\n<ul>\r\n \t<li>A PSI no greater than 2,000 should be used, with a 40 to 60 degree spread fan tip<\/li>\r\n \t<li>The head should always be kept around 300mm away from the surface<\/li>\r\n \t<li>Direct, prolonged and intense contact could damage the surface of the boards<\/li>\r\n<\/ul>\r\nTake extra care when using a pressure washer around windows, doors and cut ends of boards","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#where-can-i-use-envello-siding","position":10,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#where-can-i-use-envello-siding","name":"Where can I use Envello siding?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Envello siding is extremely versatile and can be used for most low-level cladding areas (subject to building control). It can be used for siding on low-level residential and commercial buildings, garden rooms, home offices, furniture, soffits and fascia, outdoor kitchens and more. Envello can be used as the decorative face for most outdoor designs, as long as it is fixed to a structural element. All areas subject to the relevant government regulations\/building standards.\r\n\r\n&nbsp;\r\n\r\nThe responsibility for the decking and cladding\u2019s suitability in the required location is to be determined by a certified building professional (building control, building insurance, fire officer, etc). Millboard will not be held responsible for incorrect specification, application, or product installation in areas not in accordance with government guidance, in the UK or abroad. Current guidance should be gained from the government website relating to the geographical project location.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#can-you-paint-composite-siding","position":11,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#can-you-paint-composite-siding","name":"Can you paint composite siding? ","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Millboard\u2019s composite siding range is designed to provide a long-lasting woodgrain finish in a variety of colors. Painting over the durable finish may compromise its aesthetic appeal and low-maintenance advantages. Touch-up paint is available for improving the appearance of cut ends.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#do-you-need-planning-permission-for-composite-siding","position":12,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#do-you-need-planning-permission-for-composite-siding","name":"Do you need planning permission for composite siding?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Planning permission for composite siding is generally not required unless you\u2019re working on a listed building, live in an area of outstanding natural beauty, or are in a conservation area. Siding projects using materials that complement the natural environment and existing structures are more likely to be approved, such as true-to-life wood-effect siding.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-to-install-composite-siding","position":13,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-to-install-composite-siding","name":"How to install composite siding?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"To install Millboard Envello Composite Siding boards, ensure you have a structurally sound base and follow the cladding installation guide. Secure battens vertically (and horizontally if installing vertical panels), spacing them according to your siding requirements.\r\n\r\nBegin at the bottom (for horizontal siding) with a starter strip, maintaining a 10mm ventilation gap. Use the recommended fixings to secure the composite boards, leaving consistent spacing between boards. You must ensure proper ventilation for long-term performance.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-long-does-composite-siding-last","position":14,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-long-does-composite-siding-last","name":"How long does composite siding last?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Millboard Composite siding, made from advanced composite materials like mineral stone, polymer resin, and fiberglass, is designed to withstand harsh weather conditions while retaining its beauty. The UV-stable pigment and non-porous core help ensure long-lasting appeal and minimal maintenance.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#does-envello-siding-come-with-a-warranty","position":15,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#does-envello-siding-come-with-a-warranty","name":"Does Envello siding come with a warranty?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes Millboard provide a US-backed Limited Structural 15 Year Warranty on Envello products, to provide customers with piece of mind.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-much-does-composite-siding-cost","position":16,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-much-does-composite-siding-cost","name":"How much does composite siding cost?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Millboard\u2019s luxury composite siding boards are priced to reflect their quality and durability. Speak to a Millboard supplier to start a cladding project.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-to-cut-composite-siding","position":17,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#how-to-cut-composite-siding","name":"How to cut composite siding? ","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Cutting composite siding boards is straightforward with tools like a miter saw, jigsaw, or hand saw. Always wear appropriate PPE, such as gloves, long sleeves, a dust mask, safety glasses, and ear defenders, to ensure safety during the installation process. Refer to the cladding installation guide for detailed instructions on cutting and handling.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#what-is-composite-siding-made-of","position":18,"url":"https:\/\/www.millboard.com\/en-us\/frequently-asked-questions\/envello-siding-faqs\/#what-is-composite-siding-made-of","name":"What is composite siding made of? ","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Millboard Composite cladding is crafted from polymer resins, recycled minerals, and reinforced with fibreglass. This composite material resists rotting, staining, and weather damage while providing excellent durability and an additional layer of insulation. The low-maintenance finish is achieved with a special pigment composition which is highly resistant to UV fading.","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.millboard.com\/en-us\/wp-json\/wp\/v2\/pages\/567","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.millboard.com\/en-us\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.millboard.com\/en-us\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.millboard.com\/en-us\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/www.millboard.com\/en-us\/wp-json\/wp\/v2\/comments?post=567"}],"version-history":[{"count":2,"href":"https:\/\/www.millboard.com\/en-us\/wp-json\/wp\/v2\/pages\/567\/revisions"}],"predecessor-version":[{"id":13579,"href":"https:\/\/www.millboard.com\/en-us\/wp-json\/wp\/v2\/pages\/567\/revisions\/13579"}],"up":[{"embeddable":true,"href":"https:\/\/www.millboard.com\/en-us\/wp-json\/wp\/v2\/pages\/4187"}],"wp:attachment":[{"href":"https:\/\/www.millboard.com\/en-us\/wp-json\/wp\/v2\/media?parent=567"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}