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5# manyu
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h5 \5 U' u' O" {! g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:6 q& n- d7 G# d
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
. j- G8 M1 H% K) M+ G9 Q( x2. supporting beams are a bit too far away from each other.! t4 D) V9 K7 e- ~0 i0 h7 `
3. supporting beams are not level due to earth settlement.
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% p7 W8 L7 F7 ~# h% b2 {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.
- ^* x- U2 y; \. Z$ OBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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