 鲜花( 53)  鸡蛋( 0)
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* B) M* W7 o& P& I3 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:
+ [$ p* P7 v6 R% Q4 F1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
2 w% G( b+ `1 Z4 t- |! W2. supporting beams are a bit too far away from each other.' `) @% r" Z5 |- h: l! {# R Y7 M
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.) R6 G, p& F: l: r
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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