 鲜花( 53)  鸡蛋( 0)
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5# manyu
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6 S. Q b. j. Y# Z+ ^7 A: z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:1 G7 w. j' B2 |/ }
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
; Z- _7 F/ g+ k R1 i, g6 Q2. supporting beams are a bit too far away from each other./ p0 R V1 F; X
3. supporting beams are not level due to earth settlement.
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- R0 C g3 D/ d3 |1 vFor 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.
5 D5 e6 ?1 U; E0 |! B. mBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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