Ice water shield is a thick sticky back underlayment also known as felt paper that will adhere to your roof deck and prevent water from seeping into your home if it gets under your shingles.
How to install ice and water shield on roof.
The video shows you exactly what ice water shield looks like and where it s installed.
Tar paper roofing felt thermoplastic polyolefin etc or cheaper.
If an ice dam occurs on your roof and water backs up under the shingles it will seep down into your home through the nail holes holding the shingles.
The roofer laps the material up onto the object and cuts it at corners or curves in a special way to create a leak proof barrier.
In the video it s been installed on the entire roof.
Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen.
Ice and water protector sometimes also referred to as ice and water shield is a waterproof roof underlayment membrane developed to protect vulnerable areas on a roof from ice and water damage.