I have a house with solid walls, about 230mm/9" thick.
I want to build a single-storey full-width extension across the rear of the house, which will be open to the house, i.e. not separate rooms with doorways. I want to minimise the "step" difference between the existing inside surface of the walls, and the inner skin of the new walls. Are there any alternatives to a "standard" cavity wall, which would probably end up around 100mm thicker than my existing walls?
Am I right in assuming that a plain solid brick wall will no longer meet the regs in terms of insulation value? And are the requirements due to get more onerous in April?
I want to build a single-storey full-width extension across the rear of the house, which will be open to the house, i.e. not separate rooms with doorways. I want to minimise the "step" difference between the existing inside surface of the walls, and the inner skin of the new walls. Are there any alternatives to a "standard" cavity wall, which would probably end up around 100mm thicker than my existing walls?
Am I right in assuming that a plain solid brick wall will no longer meet the regs in terms of insulation value? And are the requirements due to get more onerous in April?