Finish TradesCâu 236 / 700
Before nailing down solid strip hardwood over a wood subfloor, an installer checks moisture content of BOTH the flooring and the subfloor. Best practice is to keep the difference between them within about:
a.No limit; any difference is fine
b.2 to 4 percentage points
c.15 percentage points
d.20 percentage points
Giải thích
Wood flooring guidance keeps flooring and subfloor moisture within roughly 2 to 4 percentage points (tighter for wide planks) so the boards do not shrink or cup after installation. Ignoring the difference or allowing 15 to 20 points guarantees gaps, cupping, or buckling.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- After grouting a tile wall, a light cloudy film remains on the tile faces. This grout haze is BEST removed by:
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- Solid strip hardwood is being blind-nailed. The fasteners are typically driven at roughly a 45-degree angle:
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