That parex job of mine is a moohassive Victorian villa with all sorts of shapes etc....the clients have opted for 100 plustherm grey eps giving a u value of .28 or so I think. With insulated lightweight profiles added. Have you considered green deal funding but you source the firm. Too far for me but as an example I'm going to be green deal accredited shortly to carry out the work. Maybe someone off here in a similar situation could advise on the insulated route funded?
Goody thanks for that advice as any funding would be greatly welcomed.