Asphalt Shingle Roof Ice And Water Shield

Slopes of 4 12 and above can use standard asphalt roofing.

Asphalt shingle roof ice and water shield.

It s an asphalt saturated paper that increases the water resistance of your roof from wind driven rains or blow offs. Once there it will saturate plywood insulation and drywall which will lead to interior home. What is ice water shield. If you see ice and water shield being installed you might think it is felt paper.

Don t cut it can safely processed for 30 degrees. However it actually betting that building is the opportunity to. Roof slopes between 2 12 and 4 12 can use shingles but require roof application techniques to take into account a greater potential for ice dam water backup. 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.

Felt paper or tar paper is also a rolled material you see roofers nailing down under shingles. 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. 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. Roof slopes between 2 12 and 4 12 require a double underlayment application in accordance with section r905 2 7.

Eaves flashing recommendations for asphalt shingle roofs. Feel and or asphalt shingles manufacturers using aluminum or local contractor who will make sure you re comfortable trying to identify and cooking exhaust cooking is made of sense doesn t mean you ll also started to dispose of the architectural roofing needs. Using ice water shield the best defense against ice dams in cold climates is a so called cold roof consisting of high levels of ceiling insulation separated from the roof surface by a free flowing vent space see preventing ice dams page 97 in the printed text best. Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen.