 鲜花( 53)  鸡蛋( 0)
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5# manyu
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( A9 T" {" h' `8 B: u8 b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 k0 e. g$ [9 O
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.* Q# j4 i5 R# C$ i
2. supporting beams are a bit too far away from each other.
6 p% L9 M: C3 ]# Q3. supporting beams are not level due to earth settlement.4 s: b. Q! z( O
/ K; z# @, \; r, \0 `8 n/ i: sFor 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.
% C6 i, U3 L8 k5 u$ W1 nBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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