(06-08-2014, 12:52 PM)nominous Wrote: Curious.The timber used in the design was cross laminated timber panels which unfortunately are primarily made in Austria, this negates some of the positive environmental aspects of the material as you'd have to ship it in. But even still if the material removes 780 tonnes of co2 from the atmosphere and then you emit 500 shipping it over you're still in the plus against concrete or steel which looses from the word go.
What's the life time and the maintenance requirements?
What extra coatings would the panels need over concrete to be durable and weather resistant, and what environmental impact is needed for the production of those products?
I'm assuming it's not just bare wood ?
External usage of the timber would put it under timber class 3.1, which the panels are not made for, hence requiring a facia covering which I guess could be made out of recycled plastics for added eco-ness. Adding a facia seems to be a increasingly common practise especially as a cheap way of tarting up old buildings (see Richmond building in Bradford) so should be simple enough to find a supplier to implement this system. The facia would have to be designed to allow the timber to breathe afterwards so any moisture doesn't become trapped and rot it out.
Treated timber will have an expected minimum lifespan of 60 years however as old houses have proven if the timber is kept dry (less than 20% moisture content) it'll last for years and years. So seeing a 100 year lifespan isn't impossible which is a ruddy long time and there's a good chance the building could be decommissioned in that time which provides another benefit being that the timber could be reused if its dissembled panel by panel or burnt for fuel a feature not found on concrete
There is a structure in london built the same way called murray grove, which is where i got the initial idea from. Just wanted to prove it is a viable solution and maybe work on something similar myself someday.
(06-08-2014, 02:13 PM)bashbarnard Wrote: design my houseOnly if i can make it in the shape of a pair of jubblies can't imagine you'd get planning permission for it though