 鲜花( 53)  鸡蛋( 0)
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5# manyu
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, l7 ~+ t6 Z/ t/ u2 ^) c2 a, W* W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: f. e: w7 o. A. | M; o) {; C" _$ j
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.9 b, z/ K0 P- g
2. supporting beams are a bit too far away from each other.
c z4 I0 H$ ?. S) Y% U7 B( \5 `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.
0 t& J! S5 ]% t# p1 X9 C% zBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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