Ice And Water Shield Diagram

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 diagram.

Ft 3 ft x 75 ft. Peel the release liner from the membrane. On roofs with a pitch lower than 4 12 but greater than 2 12 this requirement changes and the roof must entirely be covered with ice water shield before asphalt shingles can be applied. 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.

The below diagram helps outline exactly how to determine how much ice water shield is needed on any given roof above 4 12 pitch. Ft 3 ft x 36 ft 225 sq. 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. Peel back 300 600 mm 1 2 ft of release liner align membrane.

These convenient reference markings help make installing grace ice water shield easier than ever before 5 grace ice water shield is available in 2 roll sizes. City hall is located at 4200 mills civic pkwy m f 8 a m. Ice under the drip edge and ensure it covers the junction of roof and fascia. Ice and water shield is perfect to use around skylights chimneys plumbing vents ventilation caps or anything that penetrates up through a roof.

See figure 6 a single length of waterguard rain ice works best but if that isn t possible successive overlaps should be 6. Grace ice water shield is supplied in 3 ft. Po box 65320 west des moines iowa 50265 0320. Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen.

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. Grace ice water shield easy measuring for fast simple installation. Cut the membrane into 3 5 m 10 15 ft lengths and re roll loosely. Press the membrane in place with heavy hand pressure.