When upgrading or replacing a skylight dome, selecting a model that fits standard 22″ x 22″ openings and extends to a 26″ x 26″ outer dome is essential for maximum light, weather resistance, and interior comfort. The following curated picks focus on durability, UV protection, and easy installation. Each product listed is designed to fit common RV skylight openings while delivering added brightness and energy efficiency.
| Product | Fit | Material | Benefits |
|---|---|---|---|
| XMK 26″ x 26″ RV Skylight Replacement Outer Dome | 22″ x 22″ openings | Polycarbonate | UV protection, impact resistant, weather durable |
| ICON Skylight SL1627W | 27″ x 15-3/4″ dome | Polycarbonate | Thicker than OEM, robust build |
| XMK RV Skylight Replacement Outer Dome (Smoke Gray) | 22″ x 22″ openings | Polycarbonate | UV protection, glare reducing, durable |
| 26″ x 26″ RV Skylight Replacement (LUNUMAOS) | 22″ x 22″ openings | Polycarbonate | Heat transfer reduction, durable |
| Beleeb RV Skylight Replacement (Smoke) | 14″ x 22″ openings | Polycarbonate | Weather resistant, UV filtering options |
XMK 26″ x 26″ Outer Dome for 22″ Openings

This RV skylight replacement features a 22″ x 22″ inner opening with a 26″ x 26″ outer dome. The heavy-duty polycarbonate construction provides impact resistance and high-temperature tolerance for outdoor environments. A UV-protective coating helps shield RV interiors from sun damage while maintaining bright, natural light in living spaces such as bathrooms and lounges. The large flange supports wind resistance and quick, secure installation.
XMK RV Skylight Replacement Outer Dome (Smoke Gray)

This replacement outer dome is sized to fit 22″ x 22″ skylight openings and includes a 26″ x 26″ outer dimension. Built from durable polycarbonate, it offers UV protection to safeguard interior finishes and reduces heat gain. The design supports a wide surface area for wind resistance, making it suitable for RVs, campers, and travel trailers that encounter varying weather conditions. The included mounting features streamline installation and long-term performance.
26″ x 26″ RV Skylight Replacement (LUNUMAOS)

The LUNUMAOS skylight fits standard 26″ x 26″ domes with 22″ x 22″ inner openings. It is crafted from premium polycarbonate, designed to withstand weather and provide extended durability. The assembly helps trap air between the outer and inner skylights, reducing heat transfer and supporting a more comfortable interior climate. It brightens interior spaces by admitting natural daylight while helping maintain energy efficiency in RVs, campers, and motorhomes.
Beleeb RV Skylight Replacement (Smoke)

Beleeb’s universal outer dome is designed for standard 14″ x 22″ skylight openings, with an outer flange of 18″ x 26″ to accommodate broader installations. The smoke option provides heat and UV filtration, reducing interior heat buildup while preserving natural light. The skylight is constructed from durable polycarbonate with impact resistance, suitable for various RV types, including motorhomes, travel trailers, and campers. Confirm fit due to potential inner dome compatibility notes.
RV Skylight Replacement Bundle (Inner and Outer)

This bundle pairs an outer skylight dome with an inner dome, designed to fit standard 14″ x 22″ openings. It includes polyurethane sealant for a secure, weather-tight fit and helps trap air between domes, reducing heat transfer. The inner dome provides light while maintaining privacy, and both domes are made from thicker polycarbonate for long-term durability. The kit is well-suited for RVs, campers, food trucks, and trailers requiring a complete replacement solution that enhances interior brightness and climate control.
RV Skylight 26×26 White Dome (LGXSHOP)

This direct replacement skylight is designed for top installation on RVs and campers, featuring a screw-in method for straightforward mounting. The UV-resistant polycarbonate dome is built to resist impact and wear, ensuring long-lasting performance. A 26″ x 26″ outer dome provides bright, natural light while helping stabilize interior temperatures by reducing heat transfer. The design prioritizes ease of installation and durable construction for frequent use in travel scenarios.
XMK Inner Dome (14″ x 22″)

Designed to fit standard 14″ x 22″ skylight inner openings, this inner dome complements compatible outer domes by adding a clear window and maintaining indoor light levels. The 2.9″ deep inner dome helps create an insulating layer to minimize heat transfer between the outer skylight and interior. It is suitable for RVs, campers, food trucks, and other mobile living spaces requiring a reliable, complete replacement kit.
Buying Guide: Key Considerations For Choosing A Skylight Dome
- Opening compatibility: Verify the inner opening size (commonly 14″ x 22″ or 22″ x 22″) and the outer dome dimensions (often 26″ x 26″) to ensure a proper fit.
- Material and durability: Look for thick polycarbonate domes with UV protection to resist impact, weathering, and yellowing over time for long-term performance.
- UV and heat management: UV coatings and dual-dome configurations help shield interiors from sun damage while reducing heat transfer and glare.
- Installation and fit: Consider screw-in or flange-based mounting options and whether the outer flange provides sufficient wind resistance for your travel conditions.
- Light transmission: A bright, natural light result improves interior ambience and can reduce artificial lighting needs, but some homeowners prefer smoke or tinted options for heat control and privacy.
- Bundle options: Outer and inner dome kits with sealants offer a complete replacement solution, simplifying installation and ensuring proper sealing against leaks.
- Compatibility with RV types: Ensure the product is suitable for motorhomes, fifth wheels, travel trailers, campers, or food trucks as applicable.
In selecting a skylight dome, consider your travel environment, typical weather, installation ease, and whether a dual-dome kit best meets your needs. Durability and UV protection are essential for maintaining interior comfort and protecting fixtures over the long term.