Roofing MINIMUM pitch?

ControlTech

What would be a good minimum pitch for shingles? I have a small roof over the 5x5 landing going to my side door entrance to my house. It was hit by a tree and I decided to extend it to also cover the three steps leading to the landing when I did the repair.

Now it is time to replace the shingles, since the previous shingles looked like a green carpet (from algae and moss) I was concerned that maybe the pitch was too flat for shingles. The entire section is 56" from house to edge, with a 13" rise. Is this a 1/5 pitch?

Are shingles the way to cover this roof, or should I be using something else? I considered roll roofing until I read all of the horror stories - I just don't want a repeat of before with moss growing up there because the pitch is not steep enough.

Thanks In Advance
Eric

tinner666

You're around 3/12. Use I&W shield, and me?? I like to shorten the exposure to 4" even though I hear it's not necessary. Haven't seen it hurt though. Use HDD nails. Not those EG 'roofing' nails. And get algae resistant shingles. Use the 25 year shingles, minimum.

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Frank

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