How To Install Corrugated Plastic Roofing Sheets

Overlap roof panels one corrugation away from prevailing wind and nail to rafters starting from one end.

How to install corrugated plastic roofing sheets.

When joining panels you should use silicone sealant along their vertical length and overlap the sheets by one corrugation. Apply front and back panels similarly to side walls. Don t pull tension or twist the sheets. If yours do not then you will need to drill holes.

Lay the first sheet on the roof starting at the bottom corner furthest from the direction of the prevailing winds. Screw every other corrugation along the bottom purlin. Cut to fit pitch of roof and around vent. Cut the panels to the desired length.

Install the sheets without stress that is. Using galvanized nails attach the moldings. Use the corrugated molding strips on the horizontal cross braces and the rounded ones on the vertical rafters. For an attractive and secure finish use molding strips over the rafters.

Most panels come up to 32 feet 9 8 m in length. Pre drill holes on the ridges. Allow for a minimum of 18. Solid polycarbonate sheets are ideal for homeowners that prefer a flat form factor to corrugated sheets.

Installing corrugated roofing 1. Install vent as close to roof peak as possible. Install the first sheet screwing along the lower gutter purlin from the outside barge side towards the middle of the structure. Fix the sheet through the centre of the pre drilled holes perpendicular to the purlins battens.

If using polycarbonate screw dome seal screws pre drill your fixing holes. In fact you can use extra waterproofing measures in case your roof has a shallow terrain. A 5 16 drill hex driver bit should be used. While they lack the added strength afforded by a corrugated profile these sheets are still incredibly durable and make the perfect shatter proof solution for balconies greenhouses conservatories and more.

Use special roofing fasteners rather than standard screws to secure the corrugated sheets as they have a waterproof seal underneath the head that prevents leaks. Adjust door construction to desired size.