 鲜花( 53)  鸡蛋( 0)
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5# manyu
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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:
. T& {2 g' F, X' m4 U% H* x1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
* i2 Q; n4 `' i: P- J u2. supporting beams are a bit too far away from each other.
2 _% m# W9 M4 D2 S( N/ S3. supporting beams are not level due to earth settlement.' U% N: K: ~; t+ z* u% D
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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.5 i8 u3 p3 l6 g) B
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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