Most profiles can be
overlaid and the standard profiles (6 & 3) are readily available,
other profiles are subject to manufacture, most at no extra cost. The
average top side thickness of is 35mm/1¾” which provides stability & strength and as a rule, cuts out the need further costly reinforcement inside.The finished flat
insulated surface is then waterproofed with a high performance felt roofing system. The
colour of the finished surface is green or grey depending on the time of the year (the different colours corespond to different fixing characteristics). There is also a choice of 10/15 year fully guaranteed systems....
