Installation recommendations

Linda DuBois
12/9/2016
I am planning on installing a new metal roof this spring and would like to know what is recommended. I have talked to several contractors about the installation and have had different opinions on the subject. My roof is 20 plus years old with a double layer of shingles. The shingles are damaged and not laying flat. What would your recommendations be for the installation?
Eric Novotny
An informed customer is the Best Customer!
12/9/2016
Linda, Skies the limit. What look do you want to achieve and what look will work with the architecture of the home?
Linda DuBois
12/9/2016
I am looking at applying the metal over the existing two layers of shingles. I need to know if underlayment and furring strips should be used in the installation. I am getting different opinions from the contractors.
Eric Novotny
An informed customer is the Best Customer!
12/9/2016
If the shingles are not laying flat, the roof substrate should be leveled via the installation of battens, purlins, etc.
Linda DuBois
12/9/2016
Is felt or some type of vapor barrier recommended between the existing shingles and the metal panels?
Linda DuBois
12/10/2016
What are the reasons for applying underlayment between the shingles and metal panels?
Eric Novotny
An informed customer is the Best Customer!
12/10/2016
You should review the literature and requirements that are specific to the panel manufacturer, however, a slip layer is always required in some capacity. This is not to control vapor diffusion in this case and much more about protecting the back of the metal panel.

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 Contractor

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 Contractors in your area for a free consultation and estimate.