Framing & StructuralCâu 356 / 700
Why is vinyl siding fastened so that the panels can move slightly (nails not driven tight) rather than pinned firmly?
a.To make installation faster only
b.Because vinyl is structural sheathing
c.To allow for thermal expansion and contraction so panels do not buckle or crack
d.Because vinyl needs no water-resistive barrier
Giải thích
Vinyl expands and contracts significantly with temperature, so nails are left slightly loose and centered in slots to let the panels move; pinning them tight causes buckling in heat and cracking in cold. Speed, structural function, and skipping the WRB are not the reasons for loose fastening.
Trích dẫn luật: 2025 CA Residential Code §R703.4Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- When metal lath for three-coat stucco is fastened to a wood-framed wall, how far should the fasteners penetrate the framing?
- In traditional three-coat stucco over metal lath, the total nominal thickness is about 7/8 inch. Which sequence of coats builds that thickness?
- Fiber-cement lap siding is installed on a wood-framed wall. What clearance is generally required between the bottom edge of the siding and the finished grade or a roof surface below it?
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- When self-furring metal lath is used for stucco, what does the 'self-furring' feature accomplish?
- A deck ledger is attached to the house rim joist. Which fastening is generally ACCEPTABLE, and which is NOT?
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