Hi, rang two companies about getting cavity in a 9" cavity block house insulated. One salesman has come back to me to say this cannot be done and that I should avoid anyone who says they can do this and that drylining is the only option for houses constructed of 9" block.
he mentioned a company who clain they can do and says they are not certified and use a product which is illegal in Ireland.
I don't know if there is an illegal product on the market but I wonder how it would work without leaving gaps/cold bridges.But dry lining is not the BEST solution ,
check the links that Suellen has provided for you.The most logic and effective insulation goes on the outside of a building,like a pullover on the body.
"The most logic and effective insulation goes on the outside of a building,like a pullover on the body"
Think of it this way, if you want to insulate your body, and keep out wind/rain, the best way to do it is to wear your raincoat nearest your skin (to keep it dry) and your jumper outside that (to keep you warm). Logical.
Then you end up with a bad back from carrying around a rain sodden pullover and require a new pullover everytime you go out as the wet one is all stretched out of shape. Logical.