1.1 The air permeability of tile roofing systems is a critical factor in determining the wind resistance of tile roofing as applied to a roof. This Standard describes a procedure for measuring the air permeability of clay and concrete tile
ASTM
Standard Test Method for Wind Resistance of Concrete and Clay Roof Tiles(Air Permeability Method)
STD-49921
2003
2009-06-01
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