Fixtures & Water HeatersCâu 80 / 120
A closet flange is set on a wood subfloor before the finished tile is installed, and the installer plans to seal the closet to the flange. Which practice is correct?
a.Set the flange below the finished floor and shim the bowl with wood blocks
b.Set the flange on top of the finished floor, secure it to the structure with fasteners, and seal with a wax or approved gasket
c.Seal the flange to the bowl with structural adhesive instead of fasteners
d.Rely on the closet bolts alone to hold the flange to the floor
Giải thích
The closet flange must rest on and be mechanically secured to the finished floor or structure, and the joint between the bowl horn and the flange is sealed with a wax ring or an approved elastomeric gasket. A flange set below the finished floor leaves a gap that the seal cannot reliably bridge, and shimming with wood blocks is not an approved support method. Adhesive does not replace fasteners, and closet bolts secure the fixture to the flange rather than the flange to the floor.
Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
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