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 on and into your attic.
Flat roof ice and water shield.
Essentially the roof and ice water shield is an extra layer to a home s roofing system that helps keep water out of the house.
Chimneys pipe boots roof vents and skylights.
Usually the roof ice and water shield is only on the overhangs and in the valleys as these are the two places leaks and ice dams occur most often.
Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen.
It s a thin membrane that is attached under the shingles of a roof.
It is also commonly applied in the valleys of a house as well as around any roof protrusions including.
Grace ice and water shield roofing underlayment a registered trademark of gcp applied technologies is the name that contractors trust the most to protect their reputations.
Grace ice water shield is a versatile underlayment material that may be used on sloped roofs under mechanically attached roof coverings such as asphalt shingles slate tile cedar and standing seam metal in many climate and assembly conditions see limitations for additional information.
Ice and water shield is a peel and stick product that adheres directly to the roof deck.
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.
It forms a water proof barrier where ice most often build up on the eaves edge.