Furring Strip Spacing For Metal Roof

Make sure that the wood strips are the right.

Furring strip spacing for metal roof.

Screw fasten the purlins using fasteners directly screwed into the trusses or rafters. Begin with the roof valleys. When installing a metal roof over an existing roof before installing the. If you opt to put the metal roof atop current roof shingles it needs to be done in combination with a synthetic underlayment recommended.

Edit answer for another 41 minute you need to check the installation instructions from the manufacturer depending on whether the purlins firring strips are 1x or 2x material and how wide thickness metal gage of roofing steel or aluminum type of seams design wind and snow loading whether designed to be walked on or not etc i have seen it vary from as little as 4 inches clear gap between firring strips on lightweight aluminum to as much as 4 feet on very heavy gage steel. If there are gutters installed on the eaves the eave flashing should be installed to overhang the lip of the gutter by about 1 2 inch. Place corner pieces where panels will meet bends at the edge of the roofing. Of course with metal shingles as opposed to panel roofing the mounting or engagement strip if used or shingles if no mounting strip should lie flat on the water barrier or bridge across up and down slope firring strips at the manufacturer specified spacing.

Create a chalk map. Use a tool belt that has a hammer loop to hold nails a measuring tape chalk line and a hammer when installing the wood. Make chalk marks along the side of the valley about an inch fro the. Use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging.

This should then be followed up with galvanized steel hat channel preferred method or 1 x 2 furring strips. Always place fasteners in the flat of the metal roofing. When re roofing a shingle roof with metal do not install the metal roofing directly on a shingle roof. We recommend installing furring strip 1x4 s down then applying single bubble wrap overtop of the strips and finally installing the metal roof.

How do you install furring strips on a metal roof.