RV Skylight Replacement Cover 18 in x 26 in - Clear Dome

In this review of the RV Skylight Replacement Cover, the reviewer finds it best suited for RV owners who need a direct, budget-friendly replacement for a standard 14 in x 22 in skylight opening. The single biggest reason to buy is the durable polycarbonate construction with a large roof flange that simplifies mounting and stands up to wind and storms, while the clear option brings noticeably more natural light into showers, bathrooms and living areas.

Key Features

• Opening fit: The dome is sized to match a 14 in x 22 in opening, so it fits most standard RV, camper and travel trailer skylights without custom trimming.
• Outer size and flange: The 18 in x 26 in outer cover provides a broad roof flange that helps distribute wind load and gives a good surface for sealant and fasteners.
• Durable material: Constructed from thicker polycarbonate, the cover resists impact and high temperatures better than thin plastics used in some older replacements.
• UV protection: A UV protective coating helps prevent sun damage to the RV interior and reduces yellowing over time.
• Light and visibility: The clear option increases natural light and allows views of sky or stars, helping maintain a comfortable interior without extra lighting.
• Installation convenience: Pre drilled holes and included stainless steel screws simplify mounting, and the lighter weight makes handling safer than glass.

Who It's For

This replacement is aimed at RV, camper and motorhome owners who have a standard 14 in x 22 in skylight opening and want a straightforward, cost effective swap that improves light and resists weather. It is a practical choice for DIYers who can apply a skylight sealant during installation and who prefer a lighter, impact resistant material over glass.

Those who should look elsewhere include owners needing a nonstandard size, an opaque vented model, or a unit with integrated blinds or mechanical parts. Also consider a heavy duty or multi-year warranty option if absolute long term crack resistance is the top priority.

Pros & Cons

Pros

• Durable polycarbonate construction provides impact resistance and heat tolerance.
• Large 18 in x 26 in flange helps secure the cover against wind and storms.
• Clear option brightens interior spaces and enables sky visibility at night.
• Easy installation with pre drilled holes and supplied stainless steel screws.

Cons

• Some users reported cracking after extended use, so long term durability can vary.
• The dome height may be shorter than expected for certain applications.

Specifications

Our Verdict

The XMK RV skylight replacement is a sensible, good-value option for owners with a standard 14 in x 22 in opening who want more natural light and a stronger than average dome. It balances easier installation, a wide mounting flange and UV protection, though buyers should be aware that long term cracking has been reported by some users. Overall it is worth buying for most DIY RVers seeking a practical, weather resistant replacement.

Frequently Asked Questions

Will this fit my existing skylight opening?
Yes, it is designed to fit standard 14 in x 22 in dome openings and uses an 18 in x 26 in outer flange for mounting.

Does it come with screws and mounting holes?
Yes, the cover has pre drilled holes and includes stainless steel screws to simplify installation.

Is the material UV resistant and weatherproof?
The dome is made from thicker polycarbonate with a UV protective coating and is rated for outdoor use to withstand extreme weather.