SHEETROCK R702.3
- Check gas gauge before and after inspection (≥ 15 min) CPC 1213.3
- Over shear verify 5/8″ penetration into structure
- 1″ clearance to combustibles at B-vents
- HVAC registers nailed on 4 sides
- Exhaust fans nailed on 2 sides
- Look for covered outlets and registers
- ≥ 1/2″ rock on underside of stairs R302.7
Nailing/Screw Schedule CRC R702.3.5 and CRC R702.3.6
Thickness ___Direction___Framing___Nail___Screw
1/2” _________Vert ________16 oc ____8” ____16”
1/2” _________Horiz _______16 oc _____7” ____12”
1/2” _________Vert ________24 oc _____7”____12”
1/2” _________Horiz _______24 oc _____8” ____12”
5/8” _________Vert ________16 oc _____8” ____16”
5/8” _________Horiz _______16 oc _____7”____ 12”
5/8” _________Vert ________24 oc _____7”____12”
5/8” _________Horiz _______24 oc _____8”____12”
Fire Rated Gypsum Board
- > 4” recessed can at party wall = 5 sided 5/8” s/r box
- Ventilation fan with party wall = 5 sided 5/8” s/r shaft or 5 sided box at fan with 26ga fan ducting
- ≥ 5/8” type X at party walls (check plans)
- Firewall nails at 7″ and screws at 12″
- 5/8″ type X on garage lid if living space above
Greenboard (not to be used in the following):
- Over vapor retarder
- Areas subject to continuous high humidity
- Ceilings with framing > 12” oc for 1/2” – 16” oc for 5/8”
- Showers/tub enclosures