Win a copy of Compost Teas for the Organic Grower this week in the Composting forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education experiences global resources the cider press projects digital market private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Nicole Alderman
  • r ranson
  • Anne Miller
  • paul wheaton
  • Joseph Lofthouse
  • Mike Jay
  • Jocelyn Campbell
  • Devaka Cooray
garden masters:
  • Steve Thorn
  • Dave Burton
  • Dan Boone
  • Joylynn Hardesty
  • Mandy Launchbury-Rainey
  • Mike Barkley

insulating blinds detail design

Posts: 16
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I want to install insulating roller blinds to conserve heat, I have seen some great stuff on builditsolar but I can't work out what is the optimum combination of fabric layers and the right order to put them in.
I am doing this because it is relatively simple to DIY and makes a huge difference to overall thermal performance, cost is also a big issue- I have no interest in buying a proprietary system.

I can get:
thermal curtain lining for about £2/m it is not the kind with a radiant barrier.
Thinsulate, nominally 6mm thick, for £4.50/m
canvas/other heavy facing fabric (for aesthetics) for approx £2/m (this would face into the room, naturally)
silvered mylar film is way more expensive than I was expecting; about £5/m, haven't tried bargain-hunting for it yet though.

I don't want to attempt this:
(basically 4 layers of mylar each slotting into it's own edge-sealing track)


face-thinsulate-mylar-thermal lining ? the thermal lining has a sort of tufted surface that is meant to create a bit more of an air gap than a standard lining- that's all it does, so putting it against the mylar is logical to me. I am going to end up with a heavy fabric touching the mylar unless I use lots of thinsulate, which is expensive and probably too bulky for the roller mechanism.

I am embarrased to say that I took physics in school but I don't know how to begin working this out.
You're not going crazy. You're going sane in a crazy word. Find comfort in this tiny ad:
Rocket Oven plan download
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!