2 install underlayment right over the shingles before installing the metal roof the second way to install a metal roof over a shingle roof is by applying an approved underlayment right over the old shingle roof.
How to change a shingle roof to a metal roof.
Use 1 4 inch metal wood screws to attach the metal sheets to the wood slat board base.
Remove roof shingles before installing a metal roof.
As the metal roof heats up in the summer time the added air gap in between will act as a buffer instead of the the metal heating up the below shingle roof.
In my opinion going over the old shingles is worthy of consideration because of the benefits of doing so.
Asphalt shingle roofing is a dominant material for residences.
Now there are metal shingles and panels that imitate materials like slate tile wood shake and even asphalt.
I would say that in most cases less weight is being added to the home by the new metal roof than what the current shingles have lost due to granule wear and oil evaporation.
But the probably best benefit that comes from using purlins is the air gap it creates from the metal roof and the existing shingle roof.
The main benefit of doing it this way is that it is the fastest way to install a new metal roof over a shingle roof.
The most trusted miami roofing contractor professionally describes the installation of thi.
What s the difference between an asphalt shingle and metal roof.
The roof needs to be in good condition and cleaned of all debris mold mildew or other problems.
This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.
Metal roofing sheets have to be installed one at a time.
In a typical year approximately 90 of the roofs our company manufactures are installed over old shingles.
Place a sheet from top to bottom on a section of the roof.
This video shows the transition of a shingle roof to a metal roof.
Make sure roof is square.
However metal roofing is surging in popularity as more aesthetic options become available.
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.
Rather than change a perfectly good shingle roof you have the option of changing the color of the roof.
When a homeowner changes the house color it can make the older but still in good condition roof look awkward.