 鲜花( 53)  鸡蛋( 0)
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5# manyu
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* x @; w2 ^! |2 m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:" f! ? O2 A" l& H+ T# l2 n
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
: {: M- S8 ^+ H" ]7 M2. supporting beams are a bit too far away from each other.3 }! S+ b0 h3 g, j) a
3. supporting beams are not level due to earth settlement.
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6 R. \* A+ D: YFor 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.
9 _) w' D2 E: r0 t! BBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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