 鲜花( 53)  鸡蛋( 0)
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找回以前的貼子,對我來說也不容易,還是簡單再說一遍好了 Possible causes are:- d% I K7 [1 o) k1 f" R+ B3 U/ h
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
3 l. N. x" p8 A7 o/ y& ]1 v1 P2. supporting beams are a bit too far away from each other.8 O5 Z& z, b R8 k2 A
3. supporting beams are not level due to earth settlement.. M: S6 w% B3 u# w( f1 o
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For 2, you may need someone with engineering knowledge to find out, but there should be a building code governing the span distance. For 3, you can go down the basement to do a visual check yourself.+ h2 d4 a0 y( q: D
But anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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