Framing For Corrugated Plastic Roofing

Attach the moldings using galvanized nails to prevent rusting in case of any leaks.

Framing for corrugated plastic roofing.

Finish fastening the second sheet and then repeat the procedure to complete the bottom row. When placing rafters for a tin roof also frequently referred to as corrugated metal or steel it is common to set the distance between rafters based on the size of the roofing panels. When framing the roof the spacing for roof trusses should not exceed 24 inches 61 cm and purlins should not exceed 36 inches 91 cm apart. Build a cover patio is not an exclusive job for professional people.

6 lay panels on rafters with one corrugation overlap and fasten with aluminum screw nails. An infill may be used between the the sheet and the apron flashing on the top edge of the roof or between the purlin and the sheet at the gutter end of the sheet to weather seal. Install a corrugated roofing wall connector panel to a wall with roofing sealant when installing panels for a patio cover. On this guide we go through the few steps required to build a beautiful roof for you patio.

On this guide we go through the few steps required to build a beautiful roof for you patio. First of all you want to take the measurement of the roof support. Corrugated greca or trimdek 5 rib. Use the rounded molding strips on the vertical rafters and the corrugated ones on the horizontal cross braces.

Follow manufacturer s instructions for the sealant application. Lay your polycarbonate panels on top of the frame of your roof. This allows the panels to be securely attached to the rafters for maximum stability. Screw the second sheet through the first and into the framing.

Attach the panels to the closure strips once they are laid down using plastic compatible screws. How to install polycarbonate roofing available from www sunnyside co nz this shows an installation on a pergola. For a secure and attractive finish you should use molding strips on top of the rafters. Nail round and corrugated molding strips to framing then paint or stain wood before installing panels.

Corrugations should run in a straight line between the highest and lowest points and at a right angle to the purlins the intermediate supports. Purlin spacing should suit the end laps required for the size of sheet to be used. For a more secure roof apply caulk sealant between the two overlapping sheets. Make sure that you plan how you will lay your panels down otherwise you could ruin your panels if they are put down incorrectly.

Place a second corrugated sheet next to the first with the ridge of the panel overlapping.