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For indoor air quality, CLT has been tested to determine the level$ l( H- g5 x' l$ e0 t- S" @* P
and safety of the off gassing it produces. CLT glue lines were tested for 8 J' D" i/ J3 Z3 r- Q2 D2 vvolatile organic compounds (VOCs), including formaldehyde emissions.4 ~+ j/ s- o$ z
The VOCs as measured in a series of tests were found to be roughly one: ^) ]$ k# ^, z1 E4 B
parts per billion (ppb), well under the standard of 50 ppb deemed to be; v1 J7 B$ j, t; [$ r# \0 t
a health hazard. T: _& T* C4 D! n
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source: / C3 [5 x! e# h9 h+ fCROSS-LAMINATED TIMBER IN BRITISH COLUMBIA5 X8 g& h2 x: x; W/ b7 S% \" C7 W* s: f http://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:29 3 J$ V8 G) \. R# B! z. H& xFor indoor air quality, CLT has been tested to determine the level* k6 f& j$ [6 }
and safety of the off gassing i ...
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CLT肯定是符合标准的，我只是对现行标准不大放心。treated wood在当年也是符合标准的。
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见过一个游泳池的房顶梁用这种材料做然后靠墙的部分全部腐烂了。好像是水蒸汽在棚顶凝结然后流倒最底初聚集，从而腐烂低处。。所以我看，这种材料不像他们所宣称的那样。不过到是看到很多新建的游泳馆都在用这种材料。估计以后会出大问题的，那天塌了死几个人，人们才会禁止使用这种材料在可能集水的地方。
本帖最后由 fish97 于 2016-6-3 14:00 编辑 ; p3 m) X$ p, N2 r3 C
石工 发表于 2016-6-3 05:298 o/ i. n \7 d
For indoor air quality, CLT has been tested to determine the level* ^+ G/ b" O; p) u2 c; j
and safety of the off gassing i ...
7 b. z+ c d. w2 o! X {6 C 9 U2 P$ p1 n. H0 q W2 g; V$ O60年代这边还很时兴喷聚尿醛泡沫，后来就是因为有formaldehyd释放而弃用了。
雷达卡
楼主
显身卡
发表于 2016-5-20 01:09:46
