Rubber Roof Pitch Question

This is really basic. I live in New England and I’m having a dormer added to my house. At what pitch would you recommend a rubber roof versus asphalt shingle?

-mike

2/12 & under i would rubber

under 4/12 gets a low slope system from me.

yup 4/12 here also…Aaron 's a book of roofing knoledge follow his lead.