Furring Strips Under Metal Roof

Screw fasten the purlins using fasteners directly screwed into the trusses or rafters.

Furring strips under metal roof.

If you opt to put the metal roof atop current roof shingles it needs to be done in combination with a synthetic underlayment recommended. Installing furring strips for metal roofing. Create a chalk map. Metal roofing panels rated for architectural use attached to purlins horizontal pieces of wood or metal fastened to roofing trusses are structurally sound when installed according to your roofing manufacturer s instructions and local building codes.

For many applications a layer of plywood underneath your metal roofing is an unnecessary expense. Use a tool belt that has a hammer loop to hold nails a measuring tape chalk line and a hammer when installing the wood. If trapped between the metal roofing and old roofing moisture can build up and cause mold and rot. If talking strip metal roofing like standing or raised seam then i can t imaging getting an even final.

Make sure that the wood strips are the right. How do you install furring strips on a metal roof. Inside closure strip foam sm rib roof accessory in black 4 pack model 98190. Outside closure strip for shelterguard metal roofing panels 4 bag model 6999231000.

This should then be followed up with galvanized steel hat channel preferred method or 1 x 2 furring strips. Or installing the new metal roofing over furring strips 1 x 3s or similar will raise the metal and provide a ventilating air pocket between layers. If talking metal shingles then putting them over existing asphalt shingles would be basically the same approach as putting on a second layer of asphalt shingles same issues same technique basically except they fasten a bit different and firring strips would generally not be used in my experience of seeing it done not that i would generally ever second layer with metal myself. Gibraltar building products 3 ft.

But roofers can install a vented metal roof that eliminates this potential problem. Make chalk marks along the side of the valley about an inch fro the. When installing a metal roof over an existing roof before installing the. Corrugated roofing suntuf closure strip metal roofing polyethylene closure strips rolled furring strip galvalume gutter.

Begin with the roof valleys.