How To Install Metal Roofing Over Shingles Step By Step Ideas. Attach your metal sheets to the framing. Metal roofing materials are available in several styles that require different fastening applications, but are most commonly screwed to the roof framing or sheathing material, which in the case of installing over existing.
The surface must be clean and perfectly flat to work on. Attach your metal sheets to the framing. Any holes in the planks should be patched with flashing tape and replace the worn out boards with plywood.
Cut Panels To Size As Needed Using A Circular Saw With A Compatible Blade.
Despite what you commonly see, it’s bad practice to bend the bundles severely by draping them over the ridge. To lay out the design for the shingles, begin at the bottom of the roof and place a tape measure ½ inch from the edge of the roof to ensure the shingles overhang the drip edge. Place a sheet from top to bottom on a section of the roof.
Lay Tarps On The Ground To Catch Debris Coming Off The Roof.
Apply caulk or roofing sealant seam tape at each junction to properly seal the 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. Attach with nails along the top edge of the strip.
At That Mark, Measure Four Feet (Or The Same Multiple Of Four) Toward The Ridge.
Clear all old roofing materials and debris from the roof. Align the first metal roofing panel so that it overlaps the edging by 1/2 to 3/4 of an inch and is square to the roof line. Inspection of asphalt shingle roofs should include:
The Use Of Roof Hugger Systems Allows You Add Blanket, Rigid And/Or Reflective Insulation Between The Existing And New Roofs.
Remove metal flashing if needed. Make sure that the sheets cover the whole roof area. Repeat steps for gabled ends, installing the drip edge up the roof along the gable.
Besides, Metal Roofing Materials Weigh Much Less Than The Shingles, Making It Easier For You To Install Then Over Shingles.
Lay a metal roofing panel over the existing roof material in the bottom corner of the roof surface, and fasten to the roof according to the metal panel instructions; Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Use caution so you don't damage windows or siding in the process.