Metal Roof Over Shingles 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.

Metal roof over shingles furring strips.

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. Spacing of furring strips for metal roof when installing a metal roof over an existing roof insulate the spaces between the wood strips with rigid insulation to prevent condensation before. If you opt to put the metal roof atop current roof shingles it needs to be done in combination with a synthetic underlayment recommended. Furring strips are required if you plan to place a metal roof on top of existing shingles.

Are furring strips always used when installing a metal roof over asphalt shingles has anyone dealt with ksl roofing located in latrobe pa for putting on a metal roof replacing windows ceilings. Some consideration for vent stacks and chimneys is required during the design process. Let s take a look at the most common types of metal roofs for houses. This is by far the most common way to install a metal roof.

If trapped between the metal roofing and old roofing moisture can build up and cause mold and rot. 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. 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.

As long as the plywood under the shingle roof is in good condition this way can provide many benefits. Installing steel roofing over existing roofing materials is fairly simple. An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing. Use furring strips to build a slat board on the roof then mount the steel sheets to the slat board.

This should then be followed up with galvanized steel hat channel preferred method or 1 x 2 furring strips.