 鲜花( 53)  鸡蛋( 0)
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5# manyu
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8 ?3 g) f1 q% V- p3 M" n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:
0 c" @/ Y# @1 u1 |, p3 n1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.( m& M5 U+ v' E. c- y
2. supporting beams are a bit too far away from each other.( c% `! n8 \( Z% h
3. supporting beams are not level due to earth settlement., g* W A6 C) t2 ]
" j- | ~. b0 G9 y4 u1 b5 rFor 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 s9 M* L/ N5 [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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