I have an older home that i am planning on replacing the existing ashfalt shingles w a double M tin roof.
The roof is a 2 / 12 pitch. The question i have is can i just go over the ashfault shingles or do i have to strip the roof,
put ice and water shield and 15lb felt on the 1x boards.
And would there be any benifet from puting I&W shield and felt on the existing shingles if i dont have to strip the shingles off.
Any advice would be helpful :huh:
The roof is a 2 / 12 pitch. The question i have is can i just go over the ashfault shingles or do i have to strip the roof,
put ice and water shield and 15lb felt on the 1x boards.
And would there be any benifet from puting I&W shield and felt on the existing shingles if i dont have to strip the shingles off.
Any advice would be helpful :huh: