Un­treated dou­glas-fir okay

Manawatu Standard - Property Weekly - - Front Page -

well as treated op­tions,’’ Mr Kar­alus says.

‘‘The de­ci­sion . . . val­i­dates the Dou­glas­fir As­so­ci­a­tion’s cam­paign to es­tab­lish that un­treated dou­glas-fir is fit for pur­pose in build­ings that are be­ing de­signed with a fo­cus on weath­er­tight­ness.

‘‘Un­treated dou­glas-fir has been used suc­cess­fully in New Zealand con­struc­tion for more than 50 years, and ex­ten­sively through­out the world as a strong and re­li­able fram­ing tim­ber for res­i­den­tial and com­mer­cial con­struc­tion.’’

The Dou­glas-fir As­so­ci­a­tion rep­re­sents grow­ers and pro­ces­sors of dou­glas-fir in the South Is­land, where more than 70 per­cent of the coun­try’s 112,000ha of dou­glas-fir is grown.

The new rules take ef­fect on April 4 and are set to be fully phased in by July 1.

Framed: New tim­ber treat­ment stan­dards en­dorse the use of un­treated dou­glas-fir in tim­ber-framed homes New tim­ber treat­ment stan­dards, just an­nounced, sim­plify the rules and en­dorse the use of un­treated dou­glas-fir in tim­ber-framed homes, Dou­glas-fir As­so­ci­a­tion man­ager Andy Kar­alus says.

Min­is­ter of Build­ing and Con­struc­tion Mau­rice Wil­liamson re­leased the new stream­lined re­quire­ments af­ter the Depart­ment of Build­ing and Hous­ing con­sid­ered sci­en­tific ev­i­dence that con­firmed the su­pe­rior nat­u­ral dura­bil­ity of dou­glas-fir for use in res­i­den­tial houses.

‘‘Strength, sta­bil­ity and rigid­ity are vi­tal re­quire­ments of su­pe­rior con­struc­tion tim­ber. In each of these ar­eas, dou­glas-fir stands out as a top per­former. It has nat­u­ral mois­ture re­sis­tance and of­fers con­sumers an un­treated ‘nat­u­ral’ build­ing op­tion as

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