Installing Metal Roof Over Rafters

I m in the process of installing a metal roof over an outside deck.

Installing metal roof over rafters.

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. If you have an assistant have him hold it while you climb to the roof. I m in the process of installing a metal roof over an outside deck. For exposed fasteners avoid over tightening the fastener.

This allows the panels to be securely attached to the rafters for maximum stability. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. 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. Put on your safety equipment including gloves safety goggles and the roofer s harness.

In this installation the vapor barrier is installed on the side of the insulation nearest the interior of the building. My rafters are in place and now i m getting ready to purchase and install my flashing and sheathing. To install it slide the flat wide. Place the first screw.

Place them directly onto purlins that are attached to the roof trusses beginning on the outside edge. Install the roofing screws vertically along each rib in the panel. I was planning on putting plywood over the rafters and cross the rafters with a 2 x4 every 16 to secure the metal roof 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.

These will stop the entry of rain wind and pests. If the roof is a hip style the 1 hip girder would be the starting point. An initial metal truss roof installation step is deciding which end or location of the building to start with. It is important to.

When using plywood nail it directly to the purlins and screw the metal roofing panels through the plywood into the purlins as instructed by the manufacturer. Brace the ladder securely. Use your neoprene washer head screws to secure the metal to the sheathing. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

In some cases however the exact spacing of the rafters doesn t matter if the roof has other means of supporting the metal panels. My rafters are in place and now i m getting ready to purchase and install my flashing and sheathing. Close or seal off the ends with a wood or plastic strip under the panel at each end.