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705A.3 Roof Valleys
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Where valley flashing is installed, the flashing shall be not less than 0.019-inch (0.48 mm) No. 26 gage galvanized sheet corrosion-resistant metal installed over not less than one layer of minimum 72 pound (32.4 kg) mineral-surfaced nonperforated cap sheet complying with ASTM D3909, at least 36-inch-wide (914 mm) running the full length of the valley.
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Related Code Sections
705A.3 [SFM] Materials and Construction Methods for Exterior Wildfire Exposure, Roof Valleys
Where valley flashing is installed, the
flashing shall be not less than 0.019-inch (0.48 mm) No. 26
gage galvanized sheet corrosion-resistant metal ...
705A.3 [SFM] Materials and Construction Methods for Exterior Wildfire Exposure, Roof Valleys
Where valley flashing is installed, the flashing shall be not less than 0.019-inch (0.48 mm) No. 26 gage galvanized sheet corrosion-resistant metal ...
R337.5.3 Building Planning, Roof Valleys
Where valley flashing is installed,
the flashing shall be not less than 0.019-inch (0.48 mm)
No. 26 gage galvanized sheet corrosion-resistant metal ...
R337.5.3 Building Planning, Roof Valleys
Where valley flashing is installed, the flashing shall be not less than 0.019-inch (0.48 mm) No. 26 gage galvanized sheet corrosionresistant metal ...
705A.3 [SFM] Materials and Construction Methods for Exterior Wildfire Exposure, Roof Valleys
Where valley flashing is installed, the
flashing shall be not less than 0.019-inch (0.48 mm) No. 26
gage galvanized sheet corrosion-resistant metal ...