 鲜花( 53)  鸡蛋( 0)
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5# manyu $ S0 u' R2 u) h- L; Z" [6 \
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* W$ A% \: C# I0 Y7 L p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:
% m: u: K; k5 P( `9 |1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.$ S* i o8 Y- g9 K( j
2. supporting beams are a bit too far away from each other.
, E8 }# t# w6 c& j3. supporting beams are not level due to earth settlement.
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5 o1 S5 o0 A& I* GFor 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.; l8 F P2 ~2 W! N5 D
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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