Roof Replacement - Nothing like a clean slate of new decking and ice water shield over which to put Tamko shingles. Access material safety data sheets, installation instructions, product specifications or other documentation for Owens Corning Ice and Water Barriers. So for little or no gain in functionality, you are adding a vapor barrier on the cold.
We put Ice Water Shield down and 30# over the IWS. In areas where there has been a history of ice forming along the eaves causing a backup of water , an ice barrier that consists of at least two layers. Todd Miller the question Is it overkill or problematic to apply ice and water barrier that is self adhesive to my entire roof as my . Ice shiel or ice guar is one option for preventin….
Roofing Underlayment - felt, ice and water barrier , synthetic underlayment. Ice and water shield is installed wrong probably half the time it is used on a roof. Installing a water barrier directly beneath the shingles helps provide your roofing system with must-have protection from wind-driven rain and ice damming.
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