Glass skylight replacement is worth considering if your plastic dome skylight is showing its age. Plastic dome skylights were once a common choice for bringing natural light into homes, offices, warehouses, and other buildings. Over time, however, older units can become discolored, weathered, or less appealing than the surrounding roof and interior finishes. When you replace a plastic dome skylight, you can consider a different approach. A glass skylight replacement offers a clean, modern appearance and a clear view of the sky. If the existing plastic unit is nearing the end of its useful life, a glass model may be worth exploring.
Before choosing a replacement, review three things:
- The differences between the materials
- How the existing skylight is installed
- Which product will work with the roof
Plastic vs. Glass: Appearance and Frame Construction
One of the most noticeable differences between plastic and glass skylights is the finished appearance. Glass provides a more architectural look. It works well with contemporary renovations, updated commercial spaces, and traditional homes alike. For owners investing in a roof replacement or interior renovation, a glass skylight can complement other improvements. It also preserves the natural light that made the original skylight desirable.
The frame matters just as much as the glazing. SIG Skylights manufactures units with welded aluminum frames and glass. This avoids wood in the structural frame, which can deteriorate from moisture exposure. It is an important consideration for owners seeking a long-lasting alternative to an aging skylight. However, proper product selection, installation, and periodic inspection remain important to long-term performance.
Glazing Options for a Glass Skylight Replacement
Older skylights may not provide the glazing characteristics available in newer products. When planning a glass skylight replacement, ask about insulated glass and other glazing options. Glass roof skylights should be matched to the building’s exposure. The right choice depends on climate, roof orientation, room use, and the amount of direct sunlight the skylight receives.
For example, a product that works well in a shaded hallway may not suit a room with intense afternoon sun. Ratings from the National Fenestration Rating Council (NFRC) can help compare options.
Will a Glass Skylight Replacement Fit the Existing Roof Opening?
Not necessarily without modifications. Before ordering a replacement, identify the existing skylight type, opening dimensions, roof pitch, and mounting arrangement. A curb-mounted skylight sits over a raised curb or frame built into the roof. A deck-mounted skylight attaches more directly to the roof surface. The correct replacement depends on the existing construction and the manufacturer’s available configurations.
If the opening is an unusual size, a standard replacement may not be the best fit. SIG Skylights offers custom sizes and configurations. This makes it possible to discuss alternatives when a standard unit does not meet the project’s requirements. Verify measurements before ordering. The installer should also confirm that the selected product suits the roof assembly.
Coordinate Your Glass Skylight Replacement with Roof Work
If the roof is already scheduled for replacement, discuss the skylight at the same time. Coordinating the work can help the roofing contractor address the opening, flashing, mounting details, and weatherproofing.
This does not mean every skylight must automatically be replaced with the roof. Consider the unit’s condition, its compatibility with the new roof, and the cost of replacing it later. Planning both projects together can help avoid unnecessary disruption after the new roofing is in place.
Plan Your Skylight Replacement with SIG Skylights
A successful glass skylight replacement begins with five details:
- Roof type
- Opening size
- Mounting method
- Glazing needs
- The intended appearance
Skylight replacement options include standard glass skylights and custom configurations. SIG Skylights manufactures glass skylights for residential and commercial applications, including curb-mounted, deck-mounted, and custom-built options.
Planning a glass skylight replacement? Visit SIG Skylights to explore available products, or contact the team to discuss the requirements of your project.