CSA A123.22-2008 标准详情
- 标准号:CSA A123.22-2008
- 中文标题:
- 英文标题:Self-adhering Polymer Modified Bituminous Sheet Materials Used As Steep Roofing Underlayment For Ice Dam Protection
- 标准类别:加拿大CSA
- 发布日期:
Covers polymer modified bituminous sheet materials intended for use as underlayment on roof eaves, or valleys, or both, to prevent leakage of shingle, tile, or metal roofs from water back-up due to ice dams.
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