Metal Roof Over Shingles Insulation

Roof edge detail overhang extended to hide the thickness of the over roofing rigid insulation.

Metal roof over shingles insulation.

Nail it around the edges with roofing nails. The metal used for the roof can be tin copper aluminum or steel. When choosing to install a metal roof homeowners need to. Doesn t provide the flattest surface for the metal roofing to be installed over each course of shingles is about a 1 8 higher than the course just below it.

Make sure roof is square. 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. Venting the eaves to vent the roof holes are cut in the old roof above the soffit which pulls air through the soffit vents underneath. Install the metal roofing panels over the insulation in accordance with the manufacturer s installation instructions.

They provide excellent protection against the elements but in many cases rain and hail sound very noisy under a metal roof. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. If you choose to install metal roofing over shingles there are certain things you must keep in mind. There are two ways to do this put in firring nailing though nails are not used any more for this strips or purlins in steel frame construction on the roof to support it or place the metal roofing directly on a flat surface like foam insulation board or the roof sheathing with roof water barrier in the correct position in the layer.

Start at the bottom of the roof and place the first piece of rigid foam insulation against the metal flashing starting at the center line. Gable end detail overhang cut and then rebuilt to hide the thickness of the over roofing rigid insulation. Insulating an existing metal roof step 1 examine the underside of your metal roof from inside the attic. Installation of metal roofing over shingles.

Installing metal roofing over shingles is the best solution. You will likely be able to see a layer of plywood roof sheathing supported by some type of framing system.