WebMar 6, 2024 · There are two options for compliance: (1) use of a prescribed minimum 3/16-inch-thick drainage space to the exterior side of the water resistive barrier (behind the stucco) or (2) a space with a minimum drainage efficiency of 90% as measured in accordance with two commonly used ASTM standards. WebIn areas where there has been a history of ice forming along the eaves causing a backup of water as designated in Table R301.2 (1), an ice barrier that consists of a least two layers of underlayment cemented together or of a self-adhering polymer modified bitumen sheet, shall be used in lieu of normal underlayment and extend from the lowest edges …
Roofing Codes: Ice Barriers 2024-02-19 Building Enclosure
WebIn areas where there has been a history of ice forming along the eaves causing a backup of water as designated in Table 301.2 (1), an ice barrier that consists of a least two layers of underlayment cemented together or of a self-adhering polymer modified bitumen sheet, shall be used in lieu of normal underlayment and extend from the lowest edges … WebSection R905.1.2 Ice Barriers in the 2024 IRC says the ice barrier “… shall … extend from the lowest edges of all roof surfaces to a point not less than 24 inches inside the exterior wall … orange tours and travels owner
Ice-Dam Protection: How Far Up the Roof Slope?
WebOn roofs with a slope that is equal to or greater than 8 units vertical in 12 units horizontal, install 3 or more feet of ice and water shield from the eave edge up along the slope edge ( IRC 2015 ). This membrane is not required … WebAn ice barrier is typically a self-sealing, self-adhering waterproof underlayment. The International Residential Code (IRC) is the residential building code most widely adopted in the U.S. According to the IRC, the … WebJul 1, 2015 · R905.1.2 Ice barriers. In areas where there has been a history of ice forming along the eaves causing a backup of water as designated in Table R301.2(1), an ice barrier shall be installed for asphalt shingles, metal roof shingles, mineral-surfaced roll roofing, slate and slate-type shingles, wood shingles and wood shakes. orange towel