 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:
' Y5 T6 C8 x& e |5 w1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.& K2 n0 K6 u" C+ O! b
2. supporting beams are a bit too far away from each other.
) _5 m1 Q7 j8 K3. 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.
" e7 p! M( K; C4 |. z. dBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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