Chris & Patsy wrote:

I used ECOTHERM on my build, cheaper than the big brand names but just as
good.

Yup, twas what I was about to say - used that myself. (Paid £14/
8'x4'x2" sheet when Jewson were quoting over £30!)

Ruberoid is another one.

Check with one of the suppliers of "seconds" like
http://www.secondsandco.co.uk/


--
Cheers,

John.

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