 鲜花( 53)  鸡蛋( 0)
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5# manyu
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# G p- g6 W( K2 c- _. d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:; |- l, I* N1 ^
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.& S5 s) {3 k- s
2. supporting beams are a bit too far away from each other.' @) N* b/ ]8 z: n
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.
7 N% g$ S) T# m' M+ E1 IBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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