Metal Roof Furring Strip Spacing

If there are gaps around the roof penetration or valley points cut extra sections of furring to fit.

Metal roof furring strip spacing.

Place corner pieces where panels will meet bends at the edge of the roofing. 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. Step 5 install metal sheets. The final step is securing a secondary row of furring strips along the roof.

The furring strips are 1x4 pine boards. 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. Use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging. Place it two feet apart from the first row.

Secure them to the roof with wood screws at every 4 to 6 inches. If you opt to put the metal roof atop current roof shingles it needs to be done in combination with a synthetic underlayment recommended. Install the slat board as described above. Screw fasten the purlins using fasteners directly screwed into the trusses or rafters.

Correctly measure the spacing of furring strips for a metal roof to further decrease condensation. Bend the metal edging to your needs if necessary and fasten it to the roof with nails at every 4 to 6 inches. This should then be followed up with galvanized steel hat channel preferred method or 1 x 2 furring strips. When finished there should be a row of furring strips stretching from one end to another with the top edge aligned at the peak.