Standard Classification for Size of Aggregate Used as Ballast for Membrane Roof Systems

Importancia y uso:

4.1 The wind resistance of ballasted membrane roof systems is determined largely by the size and weight of the ballast used. ANSI/SPRI RP-4 provides a method for the wind design of ballasted single-ply membrane roof systems and includes specific guidelines for the size and weight of aggregate used as ballast. The aggregate size classifications provided in this standard are intended for use with the guidelines provided in ANSI/SPRI RP-4 in designing the wind resistance of aggregate ballasted single-ply membrane roof systems.

4.2 The aggregate size classifications provided in this classification are intended to provide a basis of compliance for contract documents that specify certain aggregate sizes for use on ballasted membrane systems.

Subcomité:

D08.20

Volúmen:

04.04

Número ICS:

91.060.20 (Roofs)

Palabras clave:

aggregate; aggregate standard size; screenings;