Insulation foil and board products are available from:
For flat roofs and pitched roofs of whatever material, Varleys can supply the appropriate material for your requirements both under building regulations and budget.
Multi-purpose XPS Insulated plasterboard (mid performance) 2400 x 1200 x 27mmExcl. Tax: £34.99 Incl. Tax: £41.99 As low as: £35.94