J
jfd
Guest
Hello
We live in a semi D . The front and side walls are cavity walls, The back wall is built with Cavity Brick ( I think) & dry lined approx 13" deep , I have checked wall vents . Is it worth my while upgrading insulation in the cavity walls, and not improving insulation on back wall , as external insualtion is very expensive, i hear .
Any one know
Regards
We live in a semi D . The front and side walls are cavity walls, The back wall is built with Cavity Brick ( I think) & dry lined approx 13" deep , I have checked wall vents . Is it worth my while upgrading insulation in the cavity walls, and not improving insulation on back wall , as external insualtion is very expensive, i hear .
Any one know
Regards