Metal Roof Furring Strips

Installing steel roofing over existing roofing materials is fairly simple.

Metal roof furring strips.

Metal roofing is resistant to fire rot and termites. 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. Manufacturers provide 30 year warranties on metal roofing products. Twenty four inches is a common spacing of furring strips for a metal roof.

Furring strips are required if you plan to place a metal roof on top of existing shingles. Place corner pieces where panels will meet bends at the edge of the roofing. Use furring strips to build a slat board on the roof then mount the steel sheets to the slat board. They are compatible with many different kinds of synthetic underlayment.

But roofers can install a vented metal roof that eliminates this potential problem. Metal roofs depend on thin strips of wood known as furring to allow air to circulate and prevent rot. Access the roof using an extension ladder. If trapped between the metal roofing and old roofing moisture can build up and cause mold and rot.

Use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging. Configuring your metal roof batten layout. To make clear to readers if firring strips battens are used this should be located under the firring strips so the ventilation airspace is right under the metal where condensation is most likely to occur and to keep any roof boot flashing leakage running off over the top of the water barrier from contacting and corroding the underside of the. 3 install 1 4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1 4 purlins over the shingle roof.

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.