Apply roofing felt all over your roof you need to make the roof as straight as possible.
How to put shingles over a metal roof.
Metal roofs have increasingly become a more popular option for homeowners due to their reputation for longevity and curb appeal.
Thus wood strips would be.
Advantages of metal roofs in general.
You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.
This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.
Move from bottom to top.
Attach them to your roof with 3 inch wood screws in each corner.
Installing metal roofing over shingles 1.
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.