Dave is an expert on the topic of how proper roofing underlayment installation can help protect from ice dam.
Ice and water shield installation diagram.
Installing a strip of self healing bituthane membrane like ice and water shield under the siding at the bottom of the wall may be a worthwhile investment.
This ice shield seals nail holes better then regular tar paper roofing materials.
In 1978 grace construction products developed the first self adhered roofing underlayment grace ice water shield.
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.
Where to apply grace ice water shield critical roofing areas 1 2 selection matrix 3 4 why grace ice water shield is the best you can buy 5 6 how to apply grace ice water shield conventional method 7 8 back roll method 9 10 precautions and limitations 11 12 tips from the pros 13 14 application details eaves option 1.
An ice and water shield is a great roofing product to create leak free roofs.
Peel the release liner from the membrane.
See figure 6 a single length of waterguard rain ice works best but if.
Press the membrane in place with heavy hand pressure.
Carefully detail the area at the bottom of the wall where the sill connects to the foundation.
Without drip edge.
Cut the membrane into 3 5 m 10 15 ft lengths and re roll loosely.
Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen.
Membrane installation apply grace ice water shield in fair weather when the air roof deck and membrane are at temperatures of 40 f 5 c or higher.
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.
Proper installation of grace ice water shield the conventional method.
And the sheathing must be carefully protected with a continuous layer of house wrap at this point.
Grace ice water shield is supplied in 3 ft.
It has been a go to product that building professionals have trusted for over 37 years to protect their projects.
Cut the membrane into 10 15 ft 3 5 m lengths and reroll.
The eaves install an 8 stripping ply of waterguard rain ice under the drip edge and ensure it covers the junction of roof and fascia.
This ice water shield is applied as an underlayment prior to putting the shingles on the roof.