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.
How do i install corrugated plastic roofing.
On hip roofs this crew prefers to begin at the center and work outward.
Ideally you should aim to have the fasteners at the high point of every fourth corrugation.
Make sure the roofing is parallel to the rafters and that there s a 60mm overhang at the end.
To install corrugated roofing start by cutting your panels to length with an angle grinder.
Next pre drill holes on the end and side ridges of the panels spacing the holes 6 to 8 inches apart.
Beginning at the outside edge of your roof place each panel directly onto the purlins that are attached to the roof trusses.
The installation of plastic roofing is much easier if you drill the holes for the fasteners in advance.
Install a corrugated panels on gable roofs usually begins on one side of the roof working in the opposite direction of the prevailing wind.
Pre drill holes when the drilling is done in advance roofing installation is much easy.
Also ensure that the end of the sheet that s been cut is against the house.
Cut roofing to sizecorrugated plastic roof panels are very strong but easy to cut to your necessary size.
Side laps should still face away from the wind.