On 19 Dec, 19:38, "Phil L" wrote:


I don't think you have understood my post - there is no obligation for a
builder to install cavity insulation - houses are being built today - now -
without CWI and it's perfectly legal and above board, so long as the walls
meet the U value requirements which they can do without insulation.

I did understand the post. I thought the document we unearthed meant
that the builders claimed to have installed it. Now it seems it just
refers to the inner wall of the cavity...