 鲜花( 53)  鸡蛋( 0)
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5# manyu
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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:, k0 T4 w2 y+ p& |# ~
1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose." `# M: S4 {! G2 b& u5 g: \4 z
2. supporting beams are a bit too far away from each other.( U ^6 c4 a8 b$ w* Z# [( |" p1 C
3. supporting beams are not level due to earth settlement.
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5 U f$ ~& ]4 _- O9 m- V8 H; vFor 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 J( @3 d H! x5 e
But anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time. |
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