Re-Roofing an old barn - Shingles to Steel

Guest User
Hello I am looking for some advice, I am in the process of re-roofing my barn (60 -70 year old barn). It has/had 3 in 1 shingles with felt paper and tounge & grove boards. I am thinking about leaving the tounge and grove boards and running perlins over the top of them to take out the "small waves" that have formed within the roof over the last 30 years. Would I need felt paper under the perlins? Thanks Shane
Todd Miller
Isaiah Industries, Inc.
Shane, I would suggest some sort of underlayment such as 30 pound felt paper ... or a synthetic underlayment.
Eric Novotny
An informed customer is the Best Customer!
Yes. You will need some sort of underlayment behind the purlins. Personally, I prefer the synthetics that Todd mentioned.

If you would like to reply to this thread, please log in. If you do not have an Ask the Experts forum user account, create one here.

Find a Professional

Get Started Today

Take the first step to increasing the value of your home with a great looking, durable, fire resistant and energy efficient metal roof. Browse our list of qualified MRA Member Roofing Professionals in your area for a free consultation and estimate.