 鲜花( 53)  鸡蛋( 0)
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5# manyu
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3 {9 _& Y. W3 w7 E' X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:
% L1 {) }' j! p: ~1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.% C* W6 s( W: m" m9 `/ |
2. supporting beams are a bit too far away from each other.1 ~6 n) I" o, j! @
3. supporting beams are not level due to earth settlement.
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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.
3 _! `, W8 C/ ]7 j [7 JBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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