 鲜花( 53)  鸡蛋( 0)
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5# manyu
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& R3 U; s( R- i% ?9 h( l/ S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:
9 j: O) B ]& Q1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
( \% Q# J- r" Q. U/ n2. supporting beams are a bit too far away from each other., ]& ^! X P* \. w+ j( x
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.
# N9 t% _( k. \5 ^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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