CSLB C-39 Roofing ContractorSteep-Slope RoofingMedium
A roofing crew is installing a new wood shake roof on a building in a high-wind zone. To ensure maximum wind resistance, what is the recommended minimum number of fasteners per shake?
- A2 fasteners per shake
- B4 fasteners per shake
- C1 fastener per shake
- D3 fasteners per shake
Show answer & explanationAnswer & explanation
Correct answer: A. 2 fasteners per shake
For wood shakes, especially in high-wind zones, two fasteners per shake are typically required. These fasteners are placed approximately 1 inch from each side edge and 1 inch above the butt line of the course above, ensuring secure attachment.
Why the other options are wrong
- B. Four fasteners are excessive and could damage the shake or create unnecessary penetrations.
- C. One fastener per shake is insufficient for proper wind resistance and would allow the shake to pivot.
- D. Three fasteners are generally not required for standard wood shake installation and could lead to splitting of the shake.
Wood Shake Fastening
Proper fastening of wood shakes is critical for their performance, especially in resisting wind uplift.
- Fastener type and quantity are specified.
- Placement prevents splitting and ensures security.
- High-wind zones require stricter adherence.
Memory trick: Two nails secure the shake, for wind's sake.