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rockies
Member
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# Posted: 8 Jul 2015 20:06
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http://www.lumberock.com/
Saw this is a cottage magazine.
http://www.perennialwood.com/Pages/Home.aspx
The Perennial wood was used by Bryan Baeumler for his cottage at the lake, and if it's good enough for his wife, it's good enough for you. 
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Littlecooner
Member
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# Posted: 9 Jul 2015 09:58
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Per the attached article, Perennialwood by Eastman has been discontinued.
http://www.finehomebuilding.com/item/33927/eastman-drops-perennial-wood-decking-line
This stuff appears to be a thermally modified process of treatment to wood for outside usage. I could not determine the species used so I assure since the plant was in Tennessee, that they were using southern pine.
Understand the trend to be "green" and deviate from the old way of treating southern pine for outside usage, but I think the long accepted method of treatment is a good, reasonably priced product. I am the third owner of a dock over water in the southeast that was constructed about 30 or 31 years ago with the old CCA treated southern pine. Yes, it shows 30 years of wear and tear of mother nature and requires maintenance. There were several years by previous owners where nothing was done to prevent deterioration from sun and moisture, yet it looks great for its age and level of care. Sometimes it is better to stick with the tried and true, proven technology and I think the "old way" will be difficult to improve upon. Especially since the other option is the "plastic boards", which in my area are about 4 times the cost. I have observed docks and decks built with them also and they have their own inherited problems when exposed to the great outdoors (UV and moisture).
I have used some 8X8 cca treated post for the four corners of my cabin that were at the 2.4 lbs/cu ft treatment level that were picked up from the gulf coast after one of the hurricanes. They appear to be around 25-30 years old and spent the first 15 years exposed to the salt spray and constant pounding of the sea, yet there is almost no deterioration to these post. Just my thoughts and suggestions. Each to his on, its only money.
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KinAlberta
Member
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# Posted: 2 Sep 2020 12:21 - Edited by: KinAlberta
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TMW (Thermally modified wood)
https://en.m.wikipedia.org/wiki/Thermally_modified_wood
The main advantage is that softwood can be used for applications that require high durability, which might be seen as environmentally friendly. Durability class 1–3, according to European Standard EN 350-2, can be obtained out of non durable (class 5) softwood species.[6]
The main disadvantage is that the strength is decreased as a result of the high temperatures. In general the bending strength is reduced up to 30% with more reduction at higher temperatures.[7]
The biological resistance against some (not all) micro-organisms and insects is improved. However, due to breakdown of volatile organic compounds (VOC) the antimicrobial properties of wood may also decrease [8]. Shrinking and swelling is reduced up to 50–90%.[9] The treated wood is somewhat darkened in colour.
...
Saw a project article using TMW poplar. Interesting stuff.
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DaveBell
Moderator
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# Posted: 7 Sep 2020 03:01
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Stop Spamming the forum Rockies!
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KinAlberta
Member
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# Posted: 7 Sep 2020 12:58 - Edited by: KinAlberta
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Not really spam. Building on the body of knowledge on this website. My post is essentially the same. (Consolidated reference material.) I just didn’t want to start another thread when this old existing thread one seemed to fit the purpose.
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