VELUX® skylights can be installed in flat or vaulted ceilings in two worry-free phases: rooftop and interior. We can recommend where skylights should be installed, so you can reap maximum benefit from the natural light and fresh air they provide.

Phase 1 – The Rooftop

Depending on the circumstances such as roof pitch, interior light shaft depth and shape, and weather, installations can take between half a day and three days. The rooftop portion of the installation includes cutting the hole and fastening the skylight to the roof with the three layers of protection found in VELUX No Leak Skylights.

For Sun Tunnel® Skylights, the installer will use a ladder to get on the roof. Up there, they will cut the hole and install the top collar, the upper portion of the reflective tunnel, the lens and the flashing.

Phase 2 – The Interior

It takes about half a day per skylight to complete the interior portion of the installation, which includes drywall and painting. The type of ceiling in your home — vaulted or flat — will also affect the amount of time it takes to complete the interior portion of the installation.

Flat ceilings require more drywall work than vaulted ceilings. If you have a flat ceiling, your installer will use drywall to build a shaft from the skylight to direct the daylight into the room. Your installer will paint the light shaft to match the surrounding ceiling area.

For Sun Tunnel Skylights, the installer will cut the hole in the ceiling, install the lower portion of the reflective tunnel between the two holes and seal the tunnel seams with tape. Finally, they will install the diffuser and trim ring in the ceiling. If the sun is out, your new light will be on!

Installers will make every effort to protect your home’s interior from dust and other installation debris. Often, we will construct a curtain of plastic sheeting around the space in your ceiling where the skylight will be installed to contain dust.

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