 鲜花( 53)  鸡蛋( 0)
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5# manyu
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% e8 L j, f L, `, M' S" o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:' H. R5 y, R& P1 @0 f7 e
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.$ ^6 r; D: G" M- d+ y
2. supporting beams are a bit too far away from each other.6 B/ G) h5 k/ j! L6 e. ]
3. supporting beams are not level due to earth settlement.
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8 f1 E4 X9 \( n: 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.
/ |- W4 S5 b+ r) ?! 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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