Installing Corrugated Plastic Roofing Under Deck

Cut to fit pitch of roof and around vent.

Installing corrugated plastic roofing under deck.

Apply front and back panels similarly to side walls. Overlap roof panels one corrugation away from prevailing wind and nail to rafters starting from one end. Place the screws in every other valley. Snug the screws enough to compress the washer slightly.

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. Determine the desired slope of the panels under your deck. Most panels come up to 32 feet 9 8 m in length. Some panels have pre drilled holes.

The installation of plastic roofing is much easier if you drill the holes for the fasteners in advance. Install vent as close to roof peak as possible. Ideally you should aim to have the fasteners at the high point of every fourth corrugation. Installing corrugated roofing 1.

Overlap the next panel onto the one you just installed and attach it the same way this will make waterproof deck systems. For a house roof the recommended minimum slope is 2 5. Install a wood support structure for your panels screwing a row of 2 by 4s running parallel to your wall every. Pre drill holes on the ridges.

How to install corrugated roof panels under a deck step 1. If yours do not then you will need to drill holes. Allow for a minimum of 18. If you ve got a pergola attached to your house then you might want to give yourself some extra shelter and protection from the weather simply by installing.