scope:

Roof components, incorporated in complete roof assemblies, are exposed to various wind conditions. This standard presents test methods to evaluate the simulated wind uplift resistance of the completed roof assembly by using static positive and/or negative differential pressures.

This standard applies to a complete roof assembly. Weatherability, leakage, hail, fire resistance, corrosion resistance of fasteners and aggregate blow-off potential are not a part of this evaluation.

The performance of a roof assembly depends in part on all components in the roof system and on how they interact. It is therefore necessary to evaluate the roof assembly as a whole when measuring the potential for its wind resistance classification.

This standard is intended to evaluate only those hazards investigated, and is not intended to determine suitability for the end use of a product.

This standard is intended to be used to determine the simulated wind uplift resistance of the following types of roof assemblies:

• assemblies that utilize mechanical fasteners, adhesives, hot asphalt, heat welding, self adhesive components or combination thereof, to secure insulations, base sheets, cap sheets, exterior coverings and other components, in single or multi-layered constructions, to one another and to the roof deck

• assemblies that utilize structural concrete, lightweight insulating concrete, cementitious wood fiber or gypsum roof decks having a minimum thickness of 2 in. (51 mm)

• assemblies that utilize fiber reinforced cement roof decks having a minimum thickness of 4 in. (102 mm)

• assemblies that utilize steel, wood or fiber reinforced plastic roof decks

• standing/lap seam metal roof systems

This standard is not intended to be used to evaluate loose laid ballasted roof assemblies.

Purpose

This standard states the test requirements for evaluating the simulated wind uplift resistance of roof assemblies by using static positive and/or negative differential pressures. The standard applies to all components as assembled in the roof system.