90mm celotex / kingspan
abraham


"r.p.mcmurphy" wrote in message
...
hi all, i have a cold workshop/garage that i am going to heat with a
blown air heating system taken from a block of flats. the walls are
single brick wide so i will probably be cellotexing them, but the rafters
which are exposed..what is the best/cheapest/least labour intensive method
to use? (erring on the side of frugalness)

Steve