Damper
Sleeve
2 1/2 in. Min.
Stud or Runner
1/2 in. UL Classified Gypsum Wallboard (see UL Rated Wall Design for Additional Details)
Angle Fastener (see Note 2)
11⁄2 in. x 11⁄2 in.
16 ga. angle
Figure 3: 1 Hour Wall Rating
Damper
Sleeve
2 1/2 in. Min.
Stud or Runner Two layers of
1/2 in. UL Classified Gypsum Wallboard (see UL Rated Wall Design for Additional Details)
Angle Fastener (see Note 2)
11⁄2 in. x 11⁄2 in. 16 ga. angle
Figure 4: 2 Hour Wall Rating
Damper
Sleeve
#10 sheet metal screws spaced 6 in. on center and a maximum of 2 in. from the corners (minimum of 2 screws per side). Screw into studs so as to avoid space conflicts with the grille
Angle Fastener (see Note 2)
Grille (supplied by others)
2 1/2 in. Min.
Stud or Runner
1/2 in. UL Classified Gypsum Wallboard (see UL Rated Wall Design for Additional Details)
5⁄8 in. x 1 in. 16 ga. angle
Damper
Sleeve
#10 sheet metal screws spaced 6 in. on center and a maximum of 2 in. from the corners (minimum of 2 screws per side). Screw into studs so as to avoid space conflicts with the grille
Angle Fastener (see Note 2)
Grille (supplied by others)
2 1/2 in. Min. Stud or Runner
5⁄8 in. x 1 in. 16 ga. angle minimum
Two layers of
1/2 in. UL Classified Gypsum Wallboard (see UL Rated Wall Design for Additional Details)
Figure 5: 1 Hour Wall Rating | Figure 6: 2 Hour Wall Rating |
Copyright © 2008 Greenheck Fan Corporation 462101 Metal Stud for Drywall Partitions Rev. 5 March 2008
