Unscrew the fasteners holding the cover of the skylight window on with an appropriately sized driver.
Anderson skylight window leaks.
Leaks at skylights left unattended can lead to costly structural damage rotted roof sheathing rotted roof framing and wet moldy insulation as well.
To fix a leaking skylight.
2 using a caulking gun loaded with a tube of roofing cement force the mastic up under the shingle where the metal flashing meets the roofing felt the thick black paper under the roofing material.
Then press down on the roofing shingles to seal them tight.
At the time of installation 3 years ago our contractors had a anderson rep out to replace seals in 4 or 5 of our brand new skylights.
Start by checking that the windows are basically square in the frame.
With a scraper slowly remove the weather stripping around the skylight cover and the curb.
They leaked brand new.
I also see water stains on the bottom of the wooden window frame suggesting there has been wind blown rain or snow melt leakage too.
Take a moment to seal any cracks you find on the cover with the clear silicon caulk.
Original installation squareness.
1 lift up the shingles next to the skylight one at a time and brush out any dirt and debris.
Anderson rep said seal was defective.
It is pre molded seamless and waterproof polyur.
Our new anderson skylights leak.
Then lift it off and keep it to one side.