How Do I Install Corrugated Plastic Roofing

Beginning at the outside edge of your roof place each panel directly onto the purlins that are attached to the roof trusses.

How do i install corrugated plastic roofing.

Higher quality corrugated plastic normally leaves a cleaner line as they are easy to resize. On hip roofs this crew prefers to begin at the center and work outward. Make sure the roofing is parallel to the rafters and that there s a 60mm overhang at the end. Next pre drill holes on the end and side ridges of the panels spacing the holes 6 to 8 inches apart.

Pre drill holes when the drilling is done in advance roofing installation is much easy. The installation of plastic roofing is much easier if you drill the holes for the fasteners in advance. To install corrugated roofing start by cutting your panels to length with an angle grinder. Also ensure that the end of the sheet that s been cut is against the house.

Place the first sheet of roofing onto the pergola sliding it under the flashing. Side laps should still face away from the wind. Ideally you should aim to have the fasteners at the high point of every fourth corrugation. The pre drilled holes should be eight to ten millimeters in diameter and two millimeters wider than the fasteners you are using to allow room for expansion when the roof is exposed to heat.