XMK RV Skylight Replacement Bundle 18x26 Outer Dome for 14x22 Opening — Inner+Outer Dome, UV‑Protective Tint Options

If your RV, camper or travel trailer has a worn or cracked skylight, this XMK replacement bundle offers a matched inner and outer dome set that restores daylight, reduces drafts and blocks UV exposure. The kit includes both domes sized for standard 14" x 22" openings, flanges sized to overlap your roof cutout, mounting screws, and a tube of self-leveling lap sealant to help create a reliable weatherproof installation.

What exactly does this bundle include and what are the dimensions?

The set contains one inner and one outer skylight dome sized to mate with common RV sunroof openings and thicker ceiling assemblies. Each dome is engineered to fit openings of 14" x 22" and provide flanges that overlap the roof for secure mounting.

• Outer dome overall flange: 26" x 18"
• Outer dome panel: 14" x 22" x 4" depth
• Inner dome flange: 16" x 23 7/8" and inner panel: 14" x 22" x 4"
• Designed for ceiling thickness greater than 4"

How does the two-dome system help temperature and light inside my RV?

Using both an inner and outer dome creates an air gap that acts as insulation, limiting heat exchange and helping maintain a steadier interior temperature. The outer dome has an anti-UV coating to protect upholstery and finishes while the three available tints let you control glare and daylight levels.

• Air gap reduces heat transfer compared with a single thin cover
• Anti-UV coating protects interior surfaces from fading
• Available in smoke gray, white, and clear to tune light and privacy

Is installation difficult and what hardware is included?

Installation is straightforward for anyone comfortable with basic RV maintenance and roof work. The kit arrives with pre-drilled screw holes, mounting screws, and a tube of white self-leveling lap sealant to form a watertight bond; holes can be adjusted to match your roof’s fastener pattern.

• Pre-drilled flange holes for quick alignment and fastening
• Tube of self-leveling sealant to reduce leaks and drafts
• Screws included; additional sealant or trim may be used per installer preference

Which tint option should I choose and how do they differ?

Each tint balances light, heat and privacy differently: clear transmits the most daylight, white disperses light for a brighter interior without glare, and smoke gray filters sunlight and reduces visible heat. Choose based on climate, desired privacy and how much direct sun you want entering the cabin.

• Clear: maximum natural light entry
• White: diffused light, softens harsh sunlight
• Smoke gray: reduces glare and solar heat gain

Who this is for: This XMK skylight replacement bundle is intended for RV owners, camper renovators, food truck operators and trailer DIYers with a standard 14" x 22" skylight opening and ceiling thickness above 4" who want a durable, weather-resistant two-piece dome solution. It’s a practical upgrade for anyone seeking improved insulation, UV protection and controllable daylight without replacing the roof structure. If you want a straightforward swap that restores function and brightness while reducing drafts, this matched inner-and-outer set provides the components and sealant to complete the job.