 鲜花( 53)  鸡蛋( 0)
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5# manyu : D4 e, n* I2 R
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5 [2 X& @6 e5 o4 I$ W" l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:1 Q; y" _8 ?" I8 Z5 O# x) E0 y! N
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose.
) R3 ?/ W9 r" C4 Y& ~- }2. supporting beams are a bit too far away from each other.: G7 F( p4 _4 s
3. supporting beams are not level due to earth settlement.) y) F% G3 z1 B; n9 \6 m8 [/ c
( K0 D. r+ _# _: P) 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.
' T4 Z; l; t0 ?# VBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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