{"product_id":"xmk-rv-skylight-replacement-dome-18x26-fits-14x22-openings-thick-uv-stable-polycarbonate","title":"XMK RV Skylight Replacement Dome 18\"x26\" — Fits 14\"x22\" Openings, Thick UV-Stable Polycarbonate","description":"\u003cp\u003e\u003cstrong\u003eThe XMK RV skylight replacement is an 18\" x 26\" outer dome made of thick polycarbonate that fits standard 14\" x 22\" skylight openings, bringing durable weather protection and natural light into your camper.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eReplace a worn or broken roof dome with this sturdy XMK outer skylight cover designed specifically for RVs, travel trailers, motorhomes and fifth wheels. Its outer dimensions allow for reliable mounting over the common 14\" x 22\" opening while the thicker polycarbonate construction resists impacts and sun damage. Available in several tints, it brightens interiors, helps moderate heat, and installs without the weight or fragility of glass.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this skylight match my RV's 14\" x 22\" opening?\u003c\/h3\u003e\n\u003cp\u003eThe XMK dome is sized to sit over the standard 14\" x 22\" skylight flange while offering extra roof coverage for a secure seal. Pre-drilled mounting points simplify alignment so you can position it cleanly over your existing frame.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOuter dome dimensions: 18\" x 26\" for full flange coverage\u003c\/li\u003e\n  \u003cli\u003eInner clear opening fits 14\" x 22\" cutouts\u003c\/li\u003e\n  \u003cli\u003ePre-drilled holes provided for straightforward attachment\u003c\/li\u003e\n  \u003cli\u003eLightweight design compatible with common RV roof flanges\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the material hold up to wind, sun and road debris?\u003c\/h3\u003e\n\u003cp\u003eThis replacement dome uses a thicker polycarbonate engineered for outdoor exposure and impact resistance. A UV-stable coating reduces yellowing and helps protect your RV interior from solar degradation over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eImpact-resistant polycarbonate resists stones and branches\u003c\/li\u003e\n  \u003cli\u003eHigh-temperature tolerance for hot climates\u003c\/li\u003e\n  \u003cli\u003eUV protective coating to limit fading and interior UV exposure\u003c\/li\u003e\n  \u003cli\u003eLonger service life versus thin acrylic domes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich tint should I choose and how does tint affect interior light and heat?\u003c\/h3\u003e\n\u003cp\u003eXMK offers multiple tints so you can balance daylight, privacy and heat control. Darker tints filter more solar heat, while clear and white finishes admit the most natural light; choose based on climate and desired interior brightness.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSmoke gray: reduces summer heat while maintaining good daylight\u003c\/li\u003e\n  \u003cli\u003eTawny: filters harsh sunlight for a softer glow\u003c\/li\u003e\n  \u003cli\u003eClear\/white: maximizes natural light for a brighter cabin\u003c\/li\u003e\n  \u003cli\u003eDark blue: reduces glare and offers a distinctive sky view\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is the installation and what extra steps increase leak protection?\u003c\/h3\u003e\n\u003cp\u003eInstallation is intended to be straightforward: the dome is lighter than glass and pre-drilled for mounting. For a watertight result, use a quality RV skylight sealant between the flange and dome and follow torque recommendations for fasteners.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePre-drilled holes speed alignment and attachment\u003c\/li\u003e\n  \u003cli\u003eLighter weight simplifies handling and reduces risk during mounting\u003c\/li\u003e\n  \u003cli\u003eRecommended: apply skylight sealant to prevent leaks and drafts\u003c\/li\u003e\n  \u003cli\u003eTrim or drill additional holes if needed for custom flanges\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The XMK 18\" x 26\" outer skylight dome is ideal for RV owners, DIY renovators, and service techs replacing damaged or yellowed skylights on standard 14\" x 22\" openings. It suits campers and motorhomes where impact resistance, UV protection and ease of installation are priorities—especially in travel situations where weight and durability matter.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this dome fit a 14 x 22 inch skylight opening?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The outer dome measures 18 x 26 inches and is made to cover standard 14 x 22 inch skylight openings with sufficient flange for mounting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install this myself and will it leak?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Most DIYers can install it using the pre-drilled holes. Use a quality skylight sealant during installation to ensure a watertight finish.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"XMK","offers":[{"title":"Default Title","offer_id":55170264432983,"sku":"B0CHW7ZBL1","price":108.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/xmk-skylight-front-view_cff6d6c8-257c-4b32-90e0-d086afb038f2.jpg?v=1790426178","url":"https:\/\/britishgarage.co.uk\/products\/xmk-rv-skylight-replacement-dome-18x26-fits-14x22-openings-thick-uv-stable-polycarbonate","provider":"British Garage","version":"1.0","type":"link"}