It s a thin membrane that is attached under the shingles of a roof.
Roof water shiled.
After that time it quickly came to be used by most companies to create better roofing systems whatever the weather.
Ice and water shield is a thin rubberized asphalt membrane that goes beneath the shingles of your roof typically only along the overhangs and in the valleys.
Now ice and water shield is designed to stop ice damming or water that backs up say from your gutters and getting into the roof surface.
This shield protects vulnerable areas on your roof where the shingles cannot.
You should seriously consider using ice water shield if you live in ice dam country.
It s typically only installed on the first leslie.
If you have a roof that you know to be older than 1980 it won t have this great product under the shingles.
Shingles are important but so is the ice water shield protection that goes underneath them.
It can protect your home from water leaks caused by ice dams and wind driven rain.
It s a great product but like most materials there are quality shields and then ones that should be avoided.
Grace ice and water shield fully adhered smooth surface roofing underlayment provides best in class roof leak protection against wind driven rain and ice dams.
The ice and water shield is an amazing roofing product that was first introduced in the 1980s.