You are reading a single comment by @Hefty and its replies.
Click here to read the full conversation.
Hefty-
yes, we should all be using aerogel that they use on spaceships
Spacetherm: 0.015 W/mK
-
So 8mm of the cork stuff gives the same insulation as 3mm of PIR? Mmmm cosy.
It's interesting.
The cork stuff is sprayed on. Someone shared a really good pdf guide to retrofitting insulation, and one of the things it was insistent about was that the lambda value and the ability to form a really, really good fit and seal were of almost equal importance. Obvs. spray stuff can form a really, really good fit, where boarded stuff struggles.
apc
Howard
Thermal conductivity (lower better):
PIR board: 0.022 W/mK
"breathable"
ecoCORK 0.09 W/mK
CorkSol: 0.058 W/mK
Insulated lime plaster: 0.178 W/mK