Dear Chris,
May I suggest you use Insulation Cork Board.
Further information can be found on:
http://www.bcork.amorim.com/en/constructive-solutions
Sustainability: Raw material….just cork, Natural industrial
process….no additives, Practically unlimited durability….keeping
their technical characteristics, Totally recyclable, Free of
VOCs
Technical characteristics: Thermal efficiency ( lambda 0,038 /
0,040 W/mk), Very good acoustical insulation, Resistance at 10%
compression: 100 Kpa, Resistance perpendicular to the faces 50 Kpa,
Working temperature between – 180ºC and 120ºC, Fire resistance
Euroclass “E”…..in case of fire no toxic gases emission
Quality as per *European Norm EN 13170* and other International
certifications.
That is why we are proud to say that “Cork is different, naturally!”, we
produce sustainable building materials for sustainable construction.
Cork is an environmentally friendly raw material, 100% natural, renewable,
recyclable and endogenous with a high application potential in the
construction industry. Among the many technical advantages of using cork,
its thermal and acoustic insulation performance is worth a special mention.
Kind regards,
Francisco
*[email protected]* <[email protected]>
On Tuesday, March 13, 2012 3:41:28 AM UTC, Christopher Fraser wrote:
>
> Hello,
>
> I'm part of a group developing an permaculture / Open Source Ecology
> project in
> Extremadura, Spain.
>
> http://openeland.org/en/
>
> We're organising a two week summer camp where we will have a number of
> workshops
> etc and I'm planning on moving to the site for a few months to get the
> site ready.
>
> So, I'm wanting to build a structure which will be quick to build which I
> can
> live in for a while. It it works out I may be some more for the camp. I
> want to
> use sustainable (or least recyclable) materials as much as possible and
> want to
> structure to be durable enough to last a few years and be usable all year
> around
> - which I think means it needs to be insulated.
>
> The site is fairly hot during summer (30 degree centigrade plus), but gets
> cold
> over the winter (down to -3 in February when we were camping there!). It's
> general fairly dry, with most of the 750mm of annual rainfall happening in
> winter and days of 30mm+ rain not uncommon.
>
> I've also been looking at small building designs like these:
>
> http://www.countryplans.com/jshow.com/y2k/listings/3.html
> http://www.simplesolarhomes.com/steps-for-building-a-small-solar-home/
>
> I'm also thinking about a Hexyurt, but concerned about getting the weather
> proofing and insulation right.
>
> One options is to build insulated panels for the roof and walls. Help,
> wood, or
> cellulose is probably the preferred insulation to be sandwitched between
> the OSB
> on the outside and some other interior board (probably more OSB), but
> rockwool
> is currently about 10% the cost here at the moment (and is apparently
> partially
> made from recycled materials and itself recyclable).
>
> I can visualise how the panel construction for the walls, with vertical 60
> degree wedges between the panels sealed with silicone. I'm not completely
> sure
> how the roof would work and would be interested to hear ideas.
>
> One thought is that a good quality of seal between the top of the walls
> and the
> roof could be achieved by a layer of foam that compresses when the roof is
> put on.
>
> My main concern is water getting in the roof seams. I was thinking I could
> cover
> the whole structure in tar paper, but I don't seem to be able to source it
> in
> the UK or Spain. The plastic membrane equivalents are only UV stable for a
> few
> months.
>
> My next idea is the membrane could go under the OSB. It would be quite a
> complicated construction but the only way I can see it working is there's
> a
> strip of plastic under each edge seam, which is allowed to fold into a bit
> of a
> valley and is secured on the inside by two pieces of batten (which would
> also
> form the cavity for the insulation - will be complete pain to cut and fill
> with
> rockwool type insulation).
>
> I'm not sure if a H13 form roof construction would make this easier by
> only
> having two angled roof edges or harder by introducing a horizontal seam.
>
> Compressible foam could also be used between the roof triangles to improve
> air
> tightness. I am thinking about passive heating and cooling ventilation
> like this:
>
> http://www.simplesolarhomes.com/category/passive-cooling-and-heating/
>
> Anyway, I'm interested to hear ideas. I realise polyisocyanurate
> insulation
> boards would be much more straight forward, but I am keen to avoid it as
> it's
> not widely used or recycled (in Europe at least, as far as I know).
>
> Christopher.
>
>
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