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5# manyu
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; \( Q, K3 S* v* f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:# y6 A; b* {2 `, [; a. D) f4 y& D
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose." P4 i% H* e3 ~& C$ [2 Y' ?3 b
2. supporting beams are a bit too far away from each other.
' t0 ^: q# \# Q3. supporting beams are not level due to earth settlement.
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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.
8 K s8 R# V1 P3 IBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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