Finish TradesCâu 284 / 700
In a suspended acoustical ceiling grid, the perimeter of the grid is supported by wall angle (edge molding). Where main runners and cross tees are cut at the walls, they should:
a.Rest on the wall angle so the perimeter is supported and the grid stays level
b.Float free of the wall with no support
c.Be glued to the drywall face
d.Hang only from the light fixtures
Giải thích
The wall angle carries the cut ends of the grid at the room perimeter so the ceiling is supported all around and stays level and stable. Floating ends, gluing to drywall, or hanging from fixtures would leave the perimeter unsupported and sagging.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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