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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:2 T9 h8 }4 _' a! {: d& b
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
) }8 m8 }$ m [* W2 g; i) [2. supporting beams are a bit too far away from each other.
6 f/ v/ x. E# _8 Y' j1 Q3. supporting beams are not level due to earth settlement.
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& e/ f' d, J$ G, t) z" JFor 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.
4 m- G+ f- v1 G6 VBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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