Core TradesCâu 66 / 700
A below-grade concrete basement wall shows persistent damp spots and mineral staining on the interior. The MOST effective long-term remedy is to:
a.Paint the interior with latex paint
b.Run a dehumidifier continuously
c.Excavate and apply exterior waterproofing with proper drainage at the footing
d.Add more interior insulation
Giải thích
Water intrusion in below-grade walls is best solved on the positive (exterior) side by excavating, applying a waterproofing membrane, and installing footing drainage to relieve hydrostatic pressure. Interior paint and dehumidifiers only mask symptoms; insulation can trap moisture and cause mold.
Trích dẫn luật: 2025 CA Building Code, Chapter 18 (Foundations)Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A large slab pour is interrupted for 3 hours when the concrete supply is delayed. When placement resumes, a visible line forms where fresh concrete meets the partially set concrete. This cold joint is BEST prevented in future pours by:
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- CALCULATION: A slab-on-grade measures 30 ft by 24 ft and is 5 inches thick. How many cubic yards of concrete are required, before adding waste?
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