晨枫 发表于 2016-5-20 21:05 9 _$ u8 B. K9 e. a这是防白蚁危害的。也真是因为这些化学处理,我对CLT的长期安全性有怀疑,缓慢释放出来对人体不好。 ...
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For indoor air quality, CLT has been tested to determine the level: P; k( W5 \: {
and safety of the off gassing it produces. CLT glue lines were tested for - f" Y' t R3 u' e! cvolatile organic compounds (VOCs), including formaldehyde emissions. " d# h0 |* I, C. `( R; [$ N) bThe VOCs as measured in a series of tests were found to be roughly one 7 c9 E6 x$ m6 q& _1 L; E# J1 F s/ Xparts per billion (ppb), well under the standard of 50 ppb deemed to be' _ ]0 i% ~. |1 p0 o* |4 G
a health hazard. * B$ ^: b C; d. o+ F8 A% {6 ^9 Y# y+ Z7 A
source:* ^# X: J7 P" m CROSS-LAMINATED TIMBER IN BRITISH COLUMBIA; `1 Z. ?" ], a1 V; } | http://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:29 + R* M* q5 [* P8 ?1 ?' J4 [For indoor air quality, CLT has been tested to determine the level 2 j1 s1 e+ E: `! ~- A' w. \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 6 o0 ^# ?% F. P3 R
石工 发表于 2016-6-3 05:29 $ w( [% ]7 q8 Z( C/ V5 ? O6 uFor indoor air quality, CLT has been tested to determine the level / o! {; V+ J" B1 ?; E3 T* Q. Band safety of the off gassing i ...
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; D4 ?- a _5 P$ f60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。