Hi,
I'm renovating a 70's bungalow which has 3 separate flat roofs. One leaks like a sieve and another is on it's way so I'd like to convert them to warm roofs.
Approx sizes (in mm) are 4000 x 4000, 9600 x 8600 and 8400 x 8400.
We've currently stripped the whole place (no ceilings...