Core TradesCâu 43 / 700
A continuous membrane roof (such as built-up or single-ply) is generally required instead of shingles when the roof slope is LESS THAN about:
a.6:12
b.4:12
c.2:12
d.1:12
Giải thích
Slopes below about 2:12 are considered low-slope and shed water too slowly for shingles, so a continuous membrane system is required. Slopes of 4:12 and 6:12 are steep-slope and suited to shingles.
Trích dẫn luật: 2025 CA Residential Code (CRC) R905 (Roof Coverings)Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- The outlet of a bathroom or clothes-dryer environmental exhaust duct must terminate:
- In a dwelling, makeup air must generally be provided for a kitchen exhaust hood once its rated airflow exceeds about:
- Condensate from a high-efficiency (condensing) gas furnace is mildly acidic, so before or as it is discharged to an approved drain it should be:
- Where an ice barrier is required, it must extend from the eave edge to a point at least how far inside the exterior wall line of the building?
- For asphalt shingles installed on slopes between 2:12 and 4:12, the underlayment must be applied as:
- An enclosed attic has 1,500 square feet of area. Using the 1/150 rule with no vapor retarder, what MINIMUM net free ventilating area is required?
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với California CSLB General Building (B) Trade Examination · Quy trình kiểm tra