The installation starts inside.
Cornerstone Homes is building a new home on a 1.09 acre lot in a sunny valley just northwest of Boulder, CO in the prestigious foothills community of Pinebrook Hills. They asked us to install two VELUX 14″ Sun Tunnels in a bathroom in the home.
The first step is to determine the locations of the two Sun Tunnels in the interior and cutting the holes in the ceiling. This home is a little unusual because it has been constructed using foam-backed roofing panels.
Hole is cut in vaulted ceiling.
Up on the roof:
The location of the Sun Tunnels is transferred to the roof using a nail driven through the center of the hole from the interior. Then the hole is cut through the shingles and roof deck. A section of shingles around the hole is stripped and the flashing is caulked and installed. Then ice and water shield is applied to ensure a weatherproof installation and the shingles are replaced. A section of highly reflective tubing connects the flashing to the ceiling ring and an acrylic dome completes the installation.
Hole is cut in roof. 
Stripping shingles. 
Hole is cut and shigles stripped. 
Velux flashing—caulked and ready to install. 
Ice and water shield is applied. 
Tucked under the shingles. 
The finished installation.
Before and after:
Before 
After
VELUX Sun Tunnel® Skylights are a simple and cost-effective way to add natural light to small spaces.
All Skylight Specialists Velux Sun Tunnel Installations have a 5 year no leaks workmanship warranty.