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# u6 @ g1 v. x |% o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:
& o5 H- k1 \7 z7 @% F- ?6 E1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
) p/ q4 ?4 N1 s k2 S4 |2. supporting beams are a bit too far away from each other.
4 z! g1 R; O- a( \3. supporting beams are not level due to earth settlement.
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$ N$ y1 m/ i* L, f7 UFor 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.
; @' K! S& w% T" `+ _: rBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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