p/ {" |1 E+ E$ z( w ?For indoor air quality, CLT has been tested to determine the level" W$ E+ V! K1 F
and safety of the off gassing it produces. CLT glue lines were tested for 6 \ \9 O/ u6 I( L+ o( A- Cvolatile organic compounds (VOCs), including formaldehyde emissions.0 r7 n% W, ?9 n% b. U
The VOCs as measured in a series of tests were found to be roughly one ) ^( W; l( m0 l" M+ a; Cparts per billion (ppb), well under the standard of 50 ppb deemed to be" S) G3 a+ @; |+ e9 U1 B' _
a health hazard.3 v& a3 R! z$ E0 k
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source: 5 g5 N5 k( C9 {* `. _CROSS-LAMINATED TIMBER IN BRITISH COLUMBIA/ a, M0 M: n+ N3 o http://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:29- w6 E: R- W2 x0 ^( V( o
For indoor air quality, CLT has been tested to determine the level( s9 ]4 v; \- O$ T
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。
石工 发表于 2016-6-3 05:29 3 a: K* P7 ^, ^% [& W; pFor indoor air quality, CLT has been tested to determine the level - ]4 ]7 I2 M- W6 Kand safety of the off gassing i ...
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60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。