Metal Roof Over Shingles Furring Strips

But roofers can install a vented metal roof that eliminates this potential problem.

Metal roof over shingles furring strips.

If trapped between the metal roofing and old roofing moisture can build up and cause mold and rot. This is by far the most common way to install a metal roof. 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.

An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing. Furring strips are required if you plan to place a metal roof on top of existing shingles. Installing steel roofing over existing roofing materials is fairly simple. They are compatible with many different kinds of synthetic underlayment.

This should then be followed up with galvanized steel hat channel preferred method or 1 x 2 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 roofs depend on thin strips of wood known as furring to allow air to circulate and prevent rot. 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.

Manufacturers provide 30 year warranties on metal roofing products. Use furring strips to build a slat board on the roof then mount the steel sheets to the slat board. As long as the plywood under the shingle roof is in good condition this way can provide many benefits. Whether you are looking to install a metal roof on a shed or a house it s important to know the difference in the various types of metal roofs available.

Let s take a look at the most common types of metal roofs for houses.