Can You Put Ice And Water Shield On A Wet Roof
Building use and internal moisture can increase condensation beneath the roof deck.
Can you put ice and water shield on a wet roof. Also with ice water shield it seals around the nails that almost virtually guarantees no leaks. Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen. When using for full deck protection make sure proper ventilation and moisture cont rol issues are addressed. In the video it s been installed on the entire roof.
Those shingles bonded to the ice and water. Years ago when ice dams caused lots of leaks it was recommended to put on a 3 foot strip of ice and water shield rubber like membrane along the bottom edge of the roof to prevent water ice. Two houses on the same street. 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.
A roofer wants to put an ice water shield on the edge of the roof over the old shingles before putting on new shingles. I have seen alot of guys start putting felt paper over the ice and water. The reason is removal. Then down the road it came time for a new roof.
In fact a 3 strip of self adhering membrane at the eaves can be potentially worse than full coverage since a roofing leak above the eave membrane can saturate roof decking underneath the membrane as absorbed water is redistributed within the sheathing where it may become trapped long enough with sun beating on it to initiate and nurture mold or decay organism growth. Ice is not used on the entire roof other underlayments should be lapped position 6 onto waterguard rain ice applications like roof valleys. Ice and water shield is a great product that can be used in spots to protect the most vulnerable areas of your roof or as a whole roof underlayment to protect from ice dams water dams storms and leaking in any area of the country and any weather. Tar paper roofing felt thermoplastic polyolefin etc or cheaper.
When it first came out everyone put shingles right over the ice and water. The guy also talks about how the ice water shield seals itself around roofing nails which helps to distinguish it from a traditional underlayment product e g. Answer not in the handyman s opinion. The video shows you exactly what ice water shield looks like and where it s installed.
Question i am replacing my 27 year old roof.