 鲜花( 53)  鸡蛋( 0)
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( D& w# @6 t/ u5 s1 a' K1 R1 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:# v5 Q- g& v1 R2 R( P' [
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.5 s0 @# S8 }/ Z/ k1 b
2. supporting beams are a bit too far away from each other.1 K. X/ ~/ R/ y* a; \
3. supporting beams are not level due to earth settlement.+ T8 X2 X( x, {/ E! c
/ U8 B6 N4 w1 }% |, {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.
0 E9 L @6 T( S. r. U0 q4 bBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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