 鲜花( 53)  鸡蛋( 0)
|
5# manyu ) i- u S/ |! L9 C6 ^
5 ^! h: D! L' b1 r+ C# r
' W4 e) z( i& v% k( Y( K: r. h
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:
: B K7 S/ b7 c/ b. t6 e( O1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
6 S3 a/ Q0 c* G1 ?3 {- f1 Z" f( N, \2. supporting beams are a bit too far away from each other.) m9 D% B" O7 D" m: s' R
3. supporting beams are not level due to earth settlement.0 l& I) G* U) d* T3 ]& A
6 C U( D% k; ~" d- m* 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.
- @9 b9 g0 b. S& O3 J! bBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
|