 鲜花( 53)  鸡蛋( 0)
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5# manyu 5 O8 C- a; _ P
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0 Q/ Z' e# e% V! O. L1 M( N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:* s8 r% E, I7 M7 t$ y0 ^
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.7 L" ?% G- ?2 [" J& Q- a7 i
2. supporting beams are a bit too far away from each other.
2 }* h: Y* m1 `8 g! `( }3. supporting beams are not level due to earth settlement.4 R4 e3 n s/ V5 D* S* V8 U* H
# c, B, C3 c$ k" }6 aFor 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. _/ _. [% a1 L0 u- `* P6 _
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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