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5# manyu
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! K5 i( q/ j. Y6 f5 c* d$ |: Z3 [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:5 {% N0 I# }3 L* d
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
. N4 t( x4 \( l) r* o2. supporting beams are a bit too far away from each other.! l- {( t- j- _' N: }
3. supporting beams are not level due to earth settlement.. @6 l3 U9 A' L% e% X: u1 K. ~
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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.
, ~. D' m0 c4 E- B/ F. K* Q, pBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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