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WK55 New Test Method for Wind Resistance of Concrete and Clay Roof Tiles (Air Permeability Method).

Developed by Subcommittee: C15.06
See Related Work by this Subcommittee
Date Initiated: 02-07-2003

1. Scope

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 and slate roof systems when applied to a small section of roof deck in accordance with the manufacturer's instructions.
1.2 This test procedure measures the air permeability of a laid array of unsealed clay or concrete roof tiles or slates. The tiles or slates shall have a thickness between 1/8-inch (3-mm) and two (2) inches (51-mm).
1.3 This Standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords
Wind Resistance; Air Permeability Method; Clay Roof Tile; Concrete Roof Tile; Critical Upward Pressure Difference; Uplift Resistance

The title and scope are in draft form and are under development within this ASTM Committee.