 鲜花( 53)  鸡蛋( 0)
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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:" c2 @% ]* [0 N7 z- ?7 J
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.( f% G- O p5 H. P
2. supporting beams are a bit too far away from each other.
9 G0 X+ V4 Y1 X! w+ c4 x6 w3. supporting beams are not level due to earth settlement.- y0 [" b4 q& |- |
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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.# m6 l* D% f6 A
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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