I’ve had some questions lately about roofing shingles and the requirements for felt under the shingles when re-roofing a house.
I’m not currently a roofer, however I did work in the business as a roofer for two years. What I can tell everyone is that any roofer will say that 30# felt is better than 15# felt, although not required in most cases.
If you’re considering re-roofing your home or manufactured home, make sure the pitch does not call for 30# felt under the shingles. The felt is a water barrier and accomplishes two things. 1) It helps while putting the shingles on in the event of rain or heavy condensation. 2) It helps as a water barrier and protectant for the plywood underneath. In the future, I’m sure better materials will evolve.
When considering the pitch of your roof, make sure you think about both steep and shallow pitches. Roofs which are almost flat, and those that are of a heavy pitch (as in A-Frame style) will require 30# felt.
© Matt White - REALTOR® |