Although you can install corrugated metal roofing over shingles for the best foundation it is recommended that all the old roofing be removed.
Can you install a metal roof on a flat roof.
Step 4 laying the sheets.
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.
Metal specifically aluminum is known for its durability.
Plus it has the added advantage of reflecting heat from the sun which keeps energy costs down.
Metal is one of the most popular materials used for flat roof replacement.
A typical metal roof installation can last anywhere from 30 to 50 years so you will have made an important investment in the value of your home.
Remove the old roofing.
Use metal 1 inch roofing nails to install the metal edging that goes around the perimeter of the roof.
You can also nail a chalk line straight every 2 feet to use as a guide.
Take a metal sheet and use inch metal wood screws to affix the roofing onto the wood slats.
Step 3 install the metal edging.
Flat metal roofs can last for almost 35 years in ideal conditions.
This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.