% Z; Q2 Y0 a. j4 E 4 ?0 f) ^: t, w. ~* V9 W; r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: ; N0 h# H2 R/ v1. sub floor did not hold tight to the floor joists. Screws are doing better than nails for this purpose. 6 f: I$ K9 M" [- V9 w7 [0 e/ i2. supporting beams are a bit too far away from each other. ! m1 P% N. i$ s3 f3. supporting beams are not level due to earth settlement.1 l6 N( f; L5 W3 G m2 M( G
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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. 2 _/ j! S1 N6 t# SBut anyway, insist the builder to fix the problem right away, don't let them get away with 6 months time.
3 U# O/ H9 t" o. v9 s6 n& I$ uIf the problem is real serious and your builder refuses to fix it, you may consider to hire a 3rd party professional (engineering co) to look at it and write up a report for you, but this will cost you money. OR( j. d2 {6 A3 T- U g$ Q: P
Try the Troubles Shooter (TV media), they will look into it and make it public on tv if it is really the builder's fault.
1, TAKE VIDEO; 3 d/ l/ n& b: S, I* p; ]5 e2, WRITE FORMAL LETTER TO BUILDER AND SAK THEM WRITE DOWN FOR YOU.& n \$ L% f, f
白纸黑字,谁都受不了。ASK THIS BUILDER WRITE DOWN "过一段时间(也许6个月)will set down".+ d, A4 A J, ]9 k R* {) I
3, THEN YOU KNOW WHAT IS HAPPENNING.