The shingles need to be offset in every space so there are no valleys or blank spaces where a leak will start.
How to install metal roofing over shingles step by step.
Golden tips for installing metal roofing over shingles with an aging asphalt shingle roof homeowners are usually left with two choices.
When choosing to install a metal roof homeowners need to.
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Again start at the bottom and nail the shingles into place.
Both options have their benefits and drawbacks.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
To tear off the shingles and replace with a new roof or to install a metal roofing system over the existing roof.
Install the metal trim.
Install with 1 4 inch metal wood screws at a distance of every two feet.
When the felt is secured you can start laying the metal shingles.
Install metal panels or shingles 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.
Use notching scissors to notch the metal in the middle so that it will bend over the ridge.
Anatomy of a steel roof.
The metal used for the roof can be tin copper aluminum or steel.
This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.
Then work your way up to the top or center of the roof.
Step by step instructions and videos on how to install metal roofing over an existing shingle roof.
Installing metal roofing over shingles is the best solution.
Install the roofing screws vertically along each rib in the panel.
Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise.