 鲜花( 53)  鸡蛋( 0)
|
5# manyu 0 ~, N2 C0 i h ~; _% K; O
% w3 K0 R# w% i$ v
; N( r+ F. Q) g- w: ?1 M/ C
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:- |" n8 r. x8 i& b- x1 `' @
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.$ {( i4 P8 f3 J% J
2. supporting beams are a bit too far away from each other.
; {- z6 `, x+ \% J- f3. supporting beams are not level due to earth settlement.- G: w4 s, j; g
0 F5 v* v& C4 M8 J: IFor 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.
6 R4 E: @% q0 B: F( WBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
|