Installing Metal Roof Over Rafters

Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

Installing metal roof over rafters.

Place them directly onto purlins that are attached to the roof trusses beginning on the outside edge. In some cases however the exact spacing of the rafters doesn t matter if the roof has other means of supporting the metal panels. This point is critical as subsequent trusses will be attached via lateral and diagonal bracing members to the first truss says dunbar. Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof.

These will stop the entry of rain wind and pests. How to install a metal roof over open rafters step 1. My rafters are in place and now i m getting ready to purchase and install my flashing and sheathing. If you have an assistant have him hold it while you climb to the roof.

Put on your safety equipment including gloves safety goggles and the roofer s harness. My rafters are in place and now i m getting ready to purchase and install my flashing and sheathing. Install the roofing screws vertically along each rib in the panel. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are.

For exposed fasteners avoid over tightening the fastener. I m in the process of installing a metal roof over an outside deck. Close or seal off the ends with a wood or plastic strip under the panel at each end. To install it slide the flat wide.

Place the first screw. Space the screws about 12 in 30 cm apart. This allows the panels to be securely attached to the rafters for maximum stability. If the roof is a hip style the 1 hip girder would be the starting point.

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. It is important to. Install drip edge drip edge or edge metal is a piece of metal that extends approximately 0 75 inch beyond the roof s edge to channel runoff into your gutters. In this installation the vapor barrier is installed on the side of the insulation nearest the interior of the building.

Brace the ladder securely. An initial metal truss roof installation step is deciding which end or location of the building to start with. Use your neoprene washer head screws to secure the metal to the sheathing.