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6 o& U4 F! y; ~9 L( O b; V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:
2 D: m! f [: A; q4 C1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.' }* S* H# M& h8 o8 L, \8 d8 w
2. supporting beams are a bit too far away from each other.) W8 h5 b+ b* c1 U
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.3 L2 N' b! x& W( e" \0 l
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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