 鲜花( 53)  鸡蛋( 0)
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4 s: e5 M4 w" a& L: P- C3 c% x% Q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:
' t$ B4 d. \4 Y$ f, q, O. ?1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.4 O- Q; Z1 }2 q' h
2. supporting beams are a bit too far away from each other.
! Z* Q# ]7 z5 x2 n1 ^- G3. supporting beams are not level due to earth settlement.
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* W5 V3 m7 |7 _9 }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.# K7 b1 B8 u' H% p
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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