A metal roof can be installed right on top of your existing roof most of the time.
Can you put metal roof on flat roof.
So if your roof has two layers it may require a complete tear off even though steel is lighter than asphalt.
Install gutters in valleys as needed.
Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12.
Most metal shingles will be attached to the roof using metal shingle clips but metal roofing shingle installation can be system specific.
Use metal snips to cut flashing material.
But the taller profiles like standing seam and pbr shown below can be installed on roofs with as low as 1 4 or 1 2 in 12 pitch.
Measure the length of the roof edge with a tape measure.
Low slope metal roofs require less material which reduces the overall load on the building s structure.
Low slope metal roofs have simple geometries and are easier and less expensive to install that medium to steep slope roofs.
Metal roofing typically comes in large sheets but you can order smaller sizes to fit around unique features or irregular extensions of your roof for example small patios or covered stairwells.
Flat metal roofs can last for almost 35 years in ideal conditions.
Metal specifically aluminum is known for its durability.
Consult the guide for your shingle brand to determine the specific method of installation required to preserve the warranty.
Cut the gutters to fit using metal snips.
This eliminates the cost of ripping or tearing off existing material.
Continue reading below our video of the day.
Secure the gutters using a hammer and 1 2 inch roofing nails.
Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise.
Most codes now allow no more than two layers of roofing before requiring a complete tear off.
Install metal flashing along the edge of the roof using a hammer and 1 2 inch roofing nails.