 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:
/ X) N3 ~1 u: ^- m, Y+ b1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.0 ~/ B6 ] C2 t& ~ l) K
2. supporting beams are a bit too far away from each other.
4 {4 g; l$ D( M& S4 Y* n3. supporting beams are not level due to earth settlement.
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. i n7 I* m" b7 ]0 e' U7 qFor 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 _3 A1 n- O2 c" |
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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