Framing & StructuralCâu 297 / 700
When wood structural panel subfloor or sheathing is installed, what approximate gap is customarily left at panel edges and ends for expansion?
a.No gap; panels must be tightly butted
b.3/4 inch
c.1/8 inch
d.1/2 inch
Giải thích
Manufacturers and code commentary call for roughly a 1/8-inch gap at panel edges and ends so moisture swelling does not cause buckling. Butting tight invites buckling; 1/2 and 3/4 inch are far larger than needed and would leave unsupported spans and telegraph through finishes.
Trích dẫn luật: 2025 CA Residential Code §R503.2.1Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- On a wood structural panel span-rating stamp such as 24/16, what does the second number (16) represent?
- For maximum stiffness, how should the long dimension (face grain) of wood structural floor panels normally be oriented relative to the supports?
- On a roof deck of wood structural panels installed without tongue-and-groove edges or solid blocking, what device is commonly used along unsupported panel edges to keep adjacent panels flush?
- When nailing wall sheathing, what is the BEST reason to follow the specified closer edge-nail spacing (for example 6 inches) rather than a wider spacing?
- For wood structural panel sheathing, how far should nails typically penetrate into the framing member to be effective?
- A glued-and-nailed subfloor squeaks after installation. Which construction detail MOST directly reduces the squeaks?
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