Sunclear Ultra is fixed and flashed on similar principles to those of steel roofing. Start by fixing the first sheet at the end farthest from the usual wind direction. If end laps are necessary, start at the bottom corner.
Allowance needs to be made when drilling screw holes so that the sheet can move freely as it expands and contracts. Screw holes must have a minimum diameter of 10mm. Avoid over-tightening as this may cause the sheet to crack or split.
Before fixing sheets, apply white paint along the battens or purlins to minimise damaging heat build-up under the sheet, which will cause discolouration and deformation.
The standard corrugated profile is side lapped by one corrugation; however, depending on the degree of exposure and weatherproofing required, this can be increased to two ribs.
Please download a copy of our
 Sunclear Ultra Installation Guide and carefully follow its instructions.
