Hello,
I have 4" roof joists and 4" of insulation in my loft and I want to make it either 8" or 10" of insulation. Some of the loft is floor-boarded and I'd like to floor more for storage etc, do I lay the extra 4" of insulation in-between the joists and squeeze it in with the loft board or is it not possible to board over the extra thick insulation?
TIA,
Darren