Is Felt required?

We are building a new A frame cabin with a 12x12 pitch roof. The 2X10 rafters are 24" on center. I would like to put a metal roof on the cabin, and have a couple of questions? 1. Do I need to sheet the roof? I am lazy and would like to simply strap the rafters with 2X4s and apply the metal roof to the strapping. 1. Do I need the felt under the metal OR under the strapping? My thought is that it will simply restrict the air flow if the roof is not sheeted.		Bob Bryenton 11/22/2015	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/20842/find/
I would never install a metal roof on this without decking and underlayment, no matter what some manufacturers or contractors may say. With this type of construction, there us far to great of a risk of condensation. You need a vapor barrier behind your walls / ceilings, insulation, vented air space, decking, underlayment, and metal roof to do this right ... and also to avoid ice dams.		Todd Miller Isaiah Industries, Inc. 11/22/2015	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/20843/find/
+1 If you are going to heat the cabin, that roof will sweat like you are in a steam room depending on the climate. Between both the ability to insulated and long term durability, I think a solid deck is the way to go.		Eric Novotny An informed customer is the Best Customer! 11/23/2015	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/20844/find/

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