 鲜花( 53)  鸡蛋( 0)
|
5# manyu
- [3 p# u% ~+ ?. `4 L2 r. H p. Z& l$ V
( O$ r8 `% p5 ^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:! }% e: V# ~) I: x
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.! t; I: f1 w/ P5 P6 r' [
2. supporting beams are a bit too far away from each other.
5 T' z9 U( \! v: f2 u: q3. supporting beams are not level due to earth settlement.- g0 x0 E) G4 u
: h; A @( P) _8 Q8 \. c& GFor 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.
2 @$ A4 y9 D, O) i4 |But anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
|