Metal roofing over asphalt shingles---furring strips, then metal????
A few weeks ago I asked about applying metal roofing directly over asphalt shingles and was given reasons not to do that. Now I am still trying to avoid the task of removing the ashphalt shingles. There is no apparent leaking of the existing roof but the shingles are getting old.
So, can I nail furring strips to the existing roof over the asphalt shingles and then attach the metal roofing? Opinions please. Thank you.