The rear of the house was a bit funny as it had an extension added onto the top in 1994. This means its part solid brick and part blockwork at the top. Or put another way, part terrible insulation and part reasonable but not amazing.And we don’t think it is very attractive either.
Another point is that there isn’t all that much space inside to be adding internal insulation. So we decided to insulate on the outside – external wall insulation.


So first of all the 90mm of phenolic insulation is fixed using a mixture of adhesive and mechanical fixings. This is the pink phase…

These walls are now a minimum of 50% better than Building Regulations or about U = 0.2.
What are your views on the blue? We like it.