 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:
$ ]2 Z! |0 ]* R: y0 E6 g1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
% ~8 c7 f4 S2 C9 ]1 T9 |2. supporting beams are a bit too far away from each other./ |9 b, J }* c
3. supporting beams are not level due to earth settlement.
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# i' X" t, {6 s2 G; VFor 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.
. G, e3 ~( S5 p5 j+ |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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