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日本:据日经BP环境经营论坛网站2月23日报道,日本竹中工务店使用国产材柳杉作为耐火集成木材即“难燃木材”建造大型木制住宅,此前使用的国产材仅为落叶松。柳杉作为《建筑基准法》规定的1小时耐火结构构件已获得国土交通省大臣认可。使用柳杉开发耐火集成材并实用化,有效地扩大了国产柳杉材的利用,而柳杉正迎来采伐适龄期。难燃木材是2011年用落叶松开发的,并取得大臣认可。作为1小时耐火木质构件,此前已有7个事例。
Japan: According to the Nikkei BP Environmental Management Forum website reported on February 23, Japan’s Tamazaki Works using domestic material Cryptomeria japonica as refractory integrated wood that is, “hard wood” to build large-scale wooden dwellings, previously used only for domestic materials Larch. Cryptomeria japonica as a one-hour fire-resistant structural members under the Building Standards Act has been recognized by the Minister of Land, Infrastructure and Transport. The use of cedar to develop refractory Glulam and practical, effectively expanding the use of domestic cedar, and Cryptomeria usher in cutting age. Flame retardant wood was developed in 2011 with larch, and obtained the approval of the Minister. As a one-hour refractory wood components, there have been seven cases.