Basic preparation for the job the most important thing about installing standing seam is to measure the roof.
Installing standing seam metal roof over shingles.
Installing metal roofing over shingles is the best solution.
When choosing to install a metal roof homeowners need to take into account several trade offs involving cost and performance.
If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel.
Standing seam metal roof installation process.
The main challenges when installing a metal roof directly over shingles with no underlayment are clip alignment and abrasion on the underside of panels.
Mcelroy metal has introduced a method for installing standing seam metal roofing directly over asphalt shingles without a tear off.
Necessary tools materials and supplies a roofing hatchet or a carpenter s hammer.
Better steel shingle systems like the one shown install over a framework of 2x2s.
When installing a standing seam it is strongly recommended that all asphalt shingles are removed before the installation in order to prevent avoid the telegraphing effect where horizontally installed shingles punch through the vertical sheet metal roofing panels causing unsightly dents that cannot be fixed removed.
However you ll want to check with your local building department before you make any decisions.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
The system is designed around the patent pending 138t shingle recover clip and 138t symmetrical standing seam panel.
If you want to install steel over asphalt your best choice is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel.
In terms of performance many homeowners choose a steel roof making it the most popular option when it comes to creating a metal roof over existing shingles.
Building officials in some areas will only allow a re roof over one layer of shingles while officials in other places may allow you to place the roof over two layers of shingles.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
The metal used for the roof can be tin copper aluminum or steel.