 鲜花( 53)  鸡蛋( 0)
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5# manyu ( x8 F! t& o. R
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2 n3 F- \0 Y$ A: x7 L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:* n/ u4 q6 |( _* k7 Y; Y. v) H% \
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
- T. m2 z1 E$ L4 [& y, w; f2. supporting beams are a bit too far away from each other.
- `+ x5 S* s% M4 |9 @1 n3. supporting beams are not level due to earth settlement./ |; s2 M2 K7 \. M+ _2 F
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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.3 v9 ]- V% P; D* e: y3 a1 K3 ^
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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