{"id":636,"date":"2026-01-15T14:50:18","date_gmt":"2026-01-15T14:50:18","guid":{"rendered":"https:\/\/www.millboard.com\/en-gb\/?p=636"},"modified":"2026-01-23T20:55:29","modified_gmt":"2026-01-23T20:55:29","slug":"envello-cladding-gets-upgrade-shadow-line","status":"publish","type":"post","link":"https:\/\/www.millboard.com\/en-us\/latest-news\/envello-cladding-gets-upgrade-shadow-line\/","title":{"rendered":"Envello\u00a0siding gets an upgrade with Shadow Line+\u00a0"},"content":{"rendered":"\n<p><strong>After years in development,&nbsp;Envello&nbsp;now includes a fire-rated&nbsp;option: Shadow Line+.&nbsp;<\/strong><\/p>\n\n\n\n<p>Designed to replicate timber, Shadow Line+ keeps the authentic grain detail and natural variation that define the&nbsp;Envello&nbsp;range, while offering certified fire performance when installed in line with the guidance.&nbsp;<\/p>\n\n\n\n<p>Blending a premium look with straightforward fitting and&nbsp;low maintenance, Shadow Line+ is built for projects where you want the warmth of timber styling with added reassurance on performance.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading is-style-typestyle-uppercase\" id=\"h-thorough-testing-nbsp\"><strong>Thorough testing<\/strong>&nbsp;<\/h3>\n\n\n\n<p>Shadow Line+ uses the same core construction as the wider&nbsp;Envello&nbsp;range, with the addition of specially developed fire-retardant components, including a harder elastomer surface layer to increase fire resistance.&nbsp;<\/p>\n\n\n\n<p><strong>Our Shadow Line+ 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\">link here<\/a>.\u00a0<\/strong>\u00a0\u00a0<\/p>\n\n\n\n<p>For specifiers, that combination of test standard, accredited certification, and installation-led performance provides confidence when selecting Shadow Line+ for real-world applications.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading is-style-typestyle-uppercase\" id=\"h-ease-of-installation-nbsp\"><strong>Ease of installation<\/strong>&nbsp;<\/h3>\n\n\n\n<p>Like the rest of the&nbsp;Envello&nbsp;range, Shadow Line+ is designed to be quick, clean, and easy to fit. Boards lock together using a tongue-and-groove system to increase rigidity and speed up installation.&nbsp;<\/p>\n\n\n\n<p>To support a complete finish, the Shadow Line+ system includes fire-rated accessories, such as reveal boards, corner profiles, and fixings. Where visible fixings are\u00a0required, color-headed screws are available to match each siding color.\u00a0<\/p>\n\n\n\n<p>The harder surface layer also adds rigidity, allowing batten spacing up to 600 mm centres (project conditions and loading considerations still apply).&nbsp;<\/p>\n\n\n<section aria-label=\"Shadow Line + Antique Oak\"  style=\"--gallery--items-count: 1;\" class=\"gallery wp-block alignfull\">\n    <div class=\"gallery__list__wrapper\">\n        <ul class=\"gallery__list list-reset--hard\">\n                        <li data-pattern-part=\"100\" data-image-orientation=\"landscape\" style=\"--gallery--card--column: 1 \/ 13;\" class=\"gallery__card\">\n                <div class=\"gallery__card__inner img-fit\">\n                    \n                    <img decoding=\"async\" width=\"768\" height=\"430\" src=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MCL360A_Shadow-Line_Antique-Oak_Lifestyle_Hero-768x430.webp\" class=\"\" alt=\"\" role=\"presentation\" loading=\"lazy\" srcset=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MCL360A_Shadow-Line_Antique-Oak_Lifestyle_Hero-768x430.webp 768w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MCL360A_Shadow-Line_Antique-Oak_Lifestyle_Hero-300x168.webp 300w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MCL360A_Shadow-Line_Antique-Oak_Lifestyle_Hero-1024x574.webp 1024w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MCL360A_Shadow-Line_Antique-Oak_Lifestyle_Hero-600x336.webp 600w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MCL360A_Shadow-Line_Antique-Oak_Lifestyle_Hero.webp 2048w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/>                <\/div>\n                <div class=\"gallery__card__caption is-style-typestyle-small is-style-typestyle-meta\">\n                    <div class=\"gallery__card__caption-main\">\n                        Shadow Line +                    <\/div>\n\n                                            <div class=\"gallery__card__caption-secondary\">\n                            Antique Oak                        <\/div>\n                                    <\/div>\n            <\/li>\n        \n            <\/ul>\n    <\/div>\n\n    <\/section>\n\n\n\n<h3 class=\"wp-block-heading is-style-typestyle-uppercase\" id=\"h-durable-and-nbsp-low-maintenance-nbsp\"><strong>Durable and&nbsp;low maintenance<\/strong>&nbsp;<\/h3>\n\n\n\n<p>Shadow Line+ is 100% wood-free, so cut ends do not require sealing to prevent moisture ingress, and the boards do not warp or rot like timber. The profile geometry also helps manage water run-off, supporting clean lines and long-term appearance.&nbsp;<\/p>\n\n\n\n<p>With no need for painting, staining, or sealing, it is an easy-care solution for exterior design that still demands a refined finish.&nbsp;<\/p>\n\n\n<section aria-label=\"Shadow Line + Smoked Oak\"  style=\"--gallery--items-count: 1;\" class=\"gallery wp-block alignfull\">\n    <div class=\"gallery__list__wrapper\">\n        <ul class=\"gallery__list list-reset--hard\">\n                        <li data-pattern-part=\"100\" data-image-orientation=\"landscape\" style=\"--gallery--card--column: 1 \/ 13;\" class=\"gallery__card\">\n                <div class=\"gallery__card__inner img-fit\">\n                    \n                    <img decoding=\"async\" width=\"768\" height=\"497\" src=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MDE360D_Shadow-Line-Plus_Smoked-Oak_Lifestyle-close-up-768x497.webp\" class=\"\" alt=\"\" role=\"presentation\" loading=\"lazy\" srcset=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MDE360D_Shadow-Line-Plus_Smoked-Oak_Lifestyle-close-up-768x497.webp 768w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MDE360D_Shadow-Line-Plus_Smoked-Oak_Lifestyle-close-up-300x194.webp 300w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MDE360D_Shadow-Line-Plus_Smoked-Oak_Lifestyle-close-up-1024x663.webp 1024w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MDE360D_Shadow-Line-Plus_Smoked-Oak_Lifestyle-close-up-600x388.webp 600w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MDE360D_Shadow-Line-Plus_Smoked-Oak_Lifestyle-close-up.webp 2048w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/>                <\/div>\n                <div class=\"gallery__card__caption is-style-typestyle-small is-style-typestyle-meta\">\n                    <div class=\"gallery__card__caption-main\">\n                        Shadow Line +                    <\/div>\n\n                                            <div class=\"gallery__card__caption-secondary\">\n                            Smoked Oak                         <\/div>\n                                    <\/div>\n            <\/li>\n        \n            <\/ul>\n    <\/div>\n\n    <\/section>\n\n\n\n<h3 class=\"wp-block-heading is-style-typestyle-uppercase\" id=\"h-wide-design-choice-with-shadow-line-nbsp\"><strong>Wide design choice with Shadow Line+<\/strong>&nbsp;<\/h3>\n\n\n\n<p>Shadow Line+ expands design options with an\u00a0additional\u00a0color: Limed Oak. Popular in the Millboard decking range, it delivers the look of sun-drenched timber with a bright, modern feel.\u00a0<\/p>\n\n\n\n<p>With five color finishes and boards suitable for horizontal or vertical installation, Shadow Line+ makes it easy to achieve a range of aesthetics, from traditional and rustic to crisp and contemporary.\u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading is-style-typestyle-uppercase\" id=\"h-learn-more-about-shadow-line-and-order-free-samples-nbsp\"><strong>Learn more about Shadow Line+ and order free samples<\/strong>&nbsp;<\/h3>\n\n\n\n<p>Explore the Shadow Line+ range, review the installation guidance, and order free samples to see the grain detail and color variation in person.\u00a0<\/p>\n\n\n<section class=\"cards-automatic cards wp-block animate alignfull alignwide has-background has-brand-2-background-color\">\n    <div class=\"cards__inner\" style=\"--cards--best-column-fit: 3;\">\n        \n        <div class=\"cards__items\">\n                            <div data-type=\"post\" class=\"media-object g-card animate-element\" data-media=\"image\" data-link=\"true\" data-media-type=\"image\" data-media-position=\"before\" data-orientation=\"vertical\">\n    <div class=\"media-object__inner\">\n                <div class=\"media-object__media img-fit \">\n\n                                                            <div class=\"media-object__media--hover-effect\">\n                            <span class=\"media-object__media--hover-effect__top\">\n                                View                            <\/span>\n\n                            <span class=\"media-object__media--hover-effect__bottom\">\n                                Article                            <\/span>\n                        <\/div>\n                    \n                    <img decoding=\"async\" width=\"300\" height=\"169\" src=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2025\/12\/MCL360N_Shadow-Line-Plus_Sage-Green-Hero-Shot-300x169.webp\" class=\"\" alt=\"\" role=\"presentation\" loading=\"lazy\" srcset=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2025\/12\/MCL360N_Shadow-Line-Plus_Sage-Green-Hero-Shot-300x169.webp 300w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2025\/12\/MCL360N_Shadow-Line-Plus_Sage-Green-Hero-Shot-1024x576.webp 1024w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2025\/12\/MCL360N_Shadow-Line-Plus_Sage-Green-Hero-Shot-768x432.webp 768w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2025\/12\/MCL360N_Shadow-Line-Plus_Sage-Green-Hero-Shot-600x338.webp 600w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2025\/12\/MCL360N_Shadow-Line-Plus_Sage-Green-Hero-Shot.webp 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\n                                                <\/div>\n        \n        <div class=\"media-object__content flex-column\">\n            \n            \n                            <div class=\"media-object__header flex-column\">\n                                            <h2 id=\"embrace-spring-with-envello-shadow-line-in-sage-green\" class=\"media-object__heading\"><a href=\"https:\/\/www.millboard.com\/en-us\/latest-news\/embrace-spring-with-envello-shadow-line-in-sage-green\/\">Embrace Spring with\u00a0Envello\u00a0Shadow Line+ in Sage Green\u00a0<\/a><\/h2>\n                    \n                     \n                                    <\/div>\n            \n            \n            \n                    <\/div>\n\n            <\/div>\n\n<\/div>\n                            <div data-type=\"post\" class=\"media-object g-card animate-element\" data-media=\"image\" data-link=\"true\" data-media-type=\"image\" data-media-position=\"before\" data-orientation=\"vertical\">\n    <div class=\"media-object__inner\">\n                <div class=\"media-object__media img-fit \">\n\n                                                            <div class=\"media-object__media--hover-effect\">\n                            <span class=\"media-object__media--hover-effect__top\">\n                                View                            <\/span>\n\n                            <span class=\"media-object__media--hover-effect__bottom\">\n                                Article                            <\/span>\n                        <\/div>\n                    \n                    <img decoding=\"async\" width=\"300\" height=\"169\" src=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MCBF360R_Board-and-Batten_Burnt-Cedar_and_MCL360G_Shadow-Line_Golden-Oak_Dual-1-300x169.webp\" class=\"\" alt=\"\" role=\"presentation\" loading=\"lazy\" srcset=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MCBF360R_Board-and-Batten_Burnt-Cedar_and_MCL360G_Shadow-Line_Golden-Oak_Dual-1-300x169.webp 300w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MCBF360R_Board-and-Batten_Burnt-Cedar_and_MCL360G_Shadow-Line_Golden-Oak_Dual-1-1024x576.webp 1024w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MCBF360R_Board-and-Batten_Burnt-Cedar_and_MCL360G_Shadow-Line_Golden-Oak_Dual-1-768x432.webp 768w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MCBF360R_Board-and-Batten_Burnt-Cedar_and_MCL360G_Shadow-Line_Golden-Oak_Dual-1-600x338.webp 600w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2026\/01\/MCBF360R_Board-and-Batten_Burnt-Cedar_and_MCL360G_Shadow-Line_Golden-Oak_Dual-1.webp 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\n                                                <\/div>\n        \n        <div class=\"media-object__content flex-column\">\n            \n            \n                            <div class=\"media-object__header flex-column\">\n                                            <h2 id=\"envello-siding-gets-an-upgrade-with-shadow-line\" class=\"media-object__heading\"><a href=\"https:\/\/www.millboard.com\/en-us\/latest-news\/envello-cladding-gets-upgrade-shadow-line\/\">Envello\u00a0siding gets an upgrade with Shadow Line+\u00a0<\/a><\/h2>\n                    \n                     \n                                    <\/div>\n            \n            \n            \n                    <\/div>\n\n            <\/div>\n\n<\/div>\n                            <div data-type=\"post\" class=\"media-object g-card animate-element\" data-media=\"image\" data-link=\"true\" data-media-type=\"image\" data-media-position=\"before\" data-orientation=\"vertical\">\n    <div class=\"media-object__inner\">\n                <div class=\"media-object__media img-fit \">\n\n                                                            <div class=\"media-object__media--hover-effect\">\n                            <span class=\"media-object__media--hover-effect__top\">\n                                View                            <\/span>\n\n                            <span class=\"media-object__media--hover-effect__bottom\">\n                                Article                            <\/span>\n                        <\/div>\n                    \n                    <img decoding=\"async\" width=\"300\" height=\"185\" src=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2025\/12\/MCL360T_Shadow-Line-Plus_Salt-Blue-Hero-Shot-scaled-1-300x185.jpg\" class=\"\" alt=\"\" role=\"presentation\" loading=\"lazy\" srcset=\"https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2025\/12\/MCL360T_Shadow-Line-Plus_Salt-Blue-Hero-Shot-scaled-1-300x185.jpg 300w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2025\/12\/MCL360T_Shadow-Line-Plus_Salt-Blue-Hero-Shot-scaled-1-1024x630.jpg 1024w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2025\/12\/MCL360T_Shadow-Line-Plus_Salt-Blue-Hero-Shot-scaled-1-768x473.jpg 768w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2025\/12\/MCL360T_Shadow-Line-Plus_Salt-Blue-Hero-Shot-scaled-1-2048x1260.jpg 2048w, https:\/\/www.millboard.com\/en-us\/wp-content\/uploads\/sites\/5\/2025\/12\/MCL360T_Shadow-Line-Plus_Salt-Blue-Hero-Shot-scaled-1-600x369.jpg 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\n                                                <\/div>\n        \n        <div class=\"media-object__content flex-column\">\n            \n            \n                            <div class=\"media-object__header flex-column\">\n                                            <h2 id=\"transform-your-space-with-envello-shadow-line-in-salt-blue\" class=\"media-object__heading\"><a href=\"https:\/\/www.millboard.com\/en-us\/latest-news\/transform-your-space-with-envello-shadow-line-in-salt-blue\/\">Transform Your Space with Envello Shadow Line+ in Salt Blue\u00a0<\/a><\/h2>\n                    \n                     \n                                    <\/div>\n            \n            \n            \n                    <\/div>\n\n            <\/div>\n\n<\/div>\n                    <\/div>\n\n            <\/div>\n<\/section>\n\n\n<div class=\"navigation-tiles wp-block alignfull has-background has-brand-6-background-color\">\n    <div class=\"navigation-tiles__inner\">\n                    <div class=\"navigation-tiles__header\">\n                                \n                                    <h2 id=\"planning-your-next-project\" class=\"navigation-tiles__heading\">\n                        Planning Your Next Project?                    <\/h2>\n                            <\/div>\n        \n                    <div class=\"navigation-tiles__tiles\">\n                                    <div class=\"navigation-tiles__tile\">\n                                                    <h3 class=\"navigation-tiles__tile-title\">\n                                Decking configurator                            <\/h3>\n                                                \n                                                    <div class=\"navigation-tiles__tile-description\">\n                                <p>Estimate the boards, fixings, subframe and more you need for your space.<\/p>\n                            <\/div>\n                                                \n                                                    <a target=\"_blank\" rel=\"noopener\" href=\"https:\/\/deckplanner.www.millboard.com\/#\/\" class=\"navigation-tiles__tile-cta g-button\">Open Configurator<\/a>\n                                            <\/div>\n                                    <div class=\"navigation-tiles__tile\">\n      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      Installation guides                            <\/h3>\n                                                \n                                                    <div class=\"navigation-tiles__tile-description\">\n                                <p>Step by step fixing advice and detailing for every collection.<\/p>\n                            <\/div>\n                                                \n                                                    <a target=\"_blank\" rel=\"noopener\" href=\"https:\/\/www.millboard.com\/en-gb\/product-brochures\/\" class=\"navigation-tiles__tile-cta g-button\">Browse Guides<\/a>\n                                            <\/div>\n                                    <div class=\"navigation-tiles__tile\">\n                                                    <h3 class=\"navigation-tiles__tile-title\">\n                                Free product samples                            <\/h3>\n                                                \n                                                    <div class=\"navigation-tiles__tile-description\">\n                                <p>Order some samples to see how Millboard works for your project<\/p>\n                            <\/div>\n                                                \n                                                    <a target=\"_blank\" rel=\"noopener\" href=\"#\" class=\"navigation-tiles__tile-cta g-button\">Order Samples Today<\/a>\n                                            <\/div>\n                            <\/div>\n            <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>After years in development,&nbsp;Envello&nbsp;now includes a fire-rated&nbsp;option: Shadow Line+.&nbsp; Designed to replicate timber, Shadow Line+ keeps the authentic grain detail&hellip;<\/p>\n","protected":false},"author":10,"featured_media":3890,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[19,31],"tags":[],"class_list":["post-636","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cladding","category-shadow-line"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Envello Shadow Line+ Cladding | Fire-Rated Exterior Upgrade<\/title>\n<meta name=\"description\" content=\"Discover Envello Shadow Line+ \u2014 enhanced cladding with a fire-rated, timber-look finish for durable, low-maintenance exterior design.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.millboard.com\/en-us\/latest-news\/envello-cladding-gets-upgrade-shadow-line\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Envello\u00a0siding gets an upgrade with Shadow Line+\u00a0\" \/>\n<meta property=\"og:description\" content=\"Discover Envello Shadow Line+ \u2014 enhanced cladding with a fire-rated, timber-look finish for durable, low-maintenance exterior design.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.millboard.com\/en-us\/latest-news\/envello-cladding-gets-upgrade-shadow-line\/\" \/>\n<meta property=\"og:site_name\" content=\"EN-US - Residential\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-15T14:50:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-23T20:55:29+00:00\" \/>\n<meta property=\"og:image\" 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