To help more cost-effective construction of the larger conservatories Brett Martin has extended the width options for its 32mm XX Wall multi wall polycarbonate sheet.

Now, the company offers five structures from 4mm- 35mm, with single tint options ranging from clear and bronze to blue, green and Heatguard ™, which cuts out 50% of solar heat gain through the roof. Dual tints include Heatguard Opal and Bronze Opal.