Steel Roof Furring

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

Steel roof furring.

3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof. If trapped between the metal roofing and old roofing moisture can build up and cause mold and rot. This should then be followed up with galvanized steel hat channel preferred method or 1 x 2 furring strips. Some consideration for vent stacks and chimneys is required during the design process.

The final step is securing a secondary row of furring strips along the roof. Noise is usually not a factor if you are installing a steel roof over asphalt. Configuring your metal. Installing steel roofing over existing roofing materials is fairly simple.

If there are gaps around the roof penetration or valley points cut extra sections of furring to fit. If you opt to put the metal roof atop current roof shingles it needs to be done in combination with a synthetic underlayment recommended. As long as the plywood under the shingle roof is in good condition this way can provide many benefits. Place it two feet apart from the first row.

This is by far the most common way to install a metal roof. Twenty four inches is a common spacing of furring strips for a metal roof. Use furring strips to build a slat board on the roof then mount the steel sheets to the slat board. The high hat furring channel is a hat shaped corrosion resistant framing component used to fur out masonry walls and ceiling assemblies.

Steel roofing can be costly but it is a lifetime investment. Wood framed including dimensional lumber engineered joist and truss. C roof ceilings45 51 steel framed including steel bar joist framing steel c joist framing steel truss and steel roof deck. When finished there should be a row of furring strips stretching from one end to another with the top edge aligned at the.

Galvanized steel which is created by using a soft layer of zinc to protect the inner layers is the most common type of steel roofing. Correctly measure the spacing of furring strips for a metal roof to further decrease condensation. But roofers can install a vented metal roof that eliminates this potential problem.