The basic idea with a metal shingle system is that you are screwing shingles to an existing frame of felt or wood that covers the asphalt shingles.
How to install metal roofing under shingles.
This is what enables you to avoid tearing off your old roof.
Metal roofing is much more difficult to install than asphalt shingles.
Use 1 4 inch metal wood screws to attach the metal sheets to the wood slat board base.
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.
You will also need to invest in some specialty tools to help you get the job done.
You should start your metal shingles installation with half a shingle or in accordance with your metal shingles installation manual which should be system specific starting from the left of the starter flashing or gable.
As long as the plywood under the shingle roof is in good condition this way can provide many benefits.
Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are.
Use your neoprene washer head screws to secure the metal to the sheathing.
If you don t know how to cut metal roofing panels you can warp them or damage the protective coating that prevents rust.
Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.
Experts recommend that you work diagonally and raising each row of shingles gradually.
3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof.
Install metal roofing sheets.
Most metal shingles will be attached to the roof using metal shingle.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
For exposed fasteners avoid over tightening the fastener.
Place a sheet from top to bottom on a section of the roof.
Space the screws about 12 in 30 cm apart.
This is by far the most common way to install a metal roof.