 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:5 o) g; |" J0 k# e
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.6 r) m+ ]1 g: i! h$ q0 h8 F
2. supporting beams are a bit too far away from each other.3 Y5 i j# ]& f$ W" K
3. supporting beams are not level due to earth settlement. m; S1 M$ v4 Q+ d. Y& a! v
7 J* i" z$ J( cFor 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 R1 T" j# q# k: ]- O1 C6 B1 ?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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