 鲜花( 53)  鸡蛋( 0)
|
5# manyu
0 V2 C2 I$ B, `# B& `, A+ u1 k+ u& {) `5 Q1 t
; H: @7 v. L7 p m# F1 j0 ~5 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:
0 y: G8 d5 s7 n* J+ w2 Z* g' I1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.4 N) K7 _0 j! H4 v' u2 q
2. supporting beams are a bit too far away from each other.; N& r6 h9 A1 X& J
3. supporting beams are not level due to earth settlement.5 D( P( Y' s8 k! r0 v9 s
6 W" a+ {1 q) e1 _* a7 }
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.
8 B# b$ |% y( e |# cBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
|