Join the MRA | Member Login
Find a Professional
  • Why Metal Roofing?
    • About MRA
    • Benefits of Metal Roofing
    • Compare Roofing Materials
    • Homeowner Testimonials
    • Inspiring Metal Roofing Projects
  • Homeowner Resources
    • Metal Roofing Buyers Guide
    • Resilient Housing Guide
    • Metal Roof Sustainability Guide
    • Above All Else You Need a New Roof eBook
    • MRA News
    • Member Provided Resources
    • 3rd Party Articles
    • Frequently Asked Questions
  • Gallery
  • Visualizer
  • Ask The Experts
    • Energy Efficiency
    • Existing Metal Roof Questions
    • Installation
    • Is A Metal Roof Right For My House
    • Metal Roofing Benefits
    • Product Selection
    • Other
    • Archive
  • Find a Professional
Join the MRA Member Login
Sign Up Log In Add New Topic

TOPIC: Installation

Menards ProSnap Roofing

Return to Installation

Return to Forum

Good Morning, I am looking at purchasing/installing a ProSnap hidden fastener metal roof on my house (manufactured by MidWest Industries, sold by Menards). Our house has one layer of asphalt roofing, attic is well ventilated with 10" of insulation. The underlayment is solid. I would prefer installing over the current roof vs tearing off, but their published recommendations on installation recommends installing 1/4" fanfold insulation before installing the metal roofing in this scenario. Based upon what I've read in these threads, that doesn't sound like good advice due to possibility of roof leakage with insulation bend. Do you have another recommendation for roof preparation? Would installing vertical battons with 30# felt over them be the best option? Or would it be better with this product to remove my current layer before install? Thanks in advance for any advice!
Emil Bandy

8/30/2017
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/22385/find/
There are many variables to consider. That particular panel really requires a pretty smooth substrate. I assume they are trying to achieve that using the fanfold but then enters in my concern about over driving fasteners into the fanfold, especially on that type of panel. If you installed over battens, the battens would need to run horizontal and I am not sure if they approve of that. You don'd want to do anything outside the manufacturer specs. Right off hand, as long as it doesn't violate their specs, I would suggest tearing off the old shingles, installing underlayment (you might want to look at the synthetics rather than 30 lb felt) and then the roof. If the current shingles are in exceptionally good shape, you might get by with going over them, along with a new layer of underlayment. I am glad that the attic has good ventilation; if not, we'd have some other things to work through. Todd Miller
Todd Miller
Isaiah Industries, Inc.

9/1/2017
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/22386/find/

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.

  • About the MRA
    • Member Companies
    • Leadership
    • MRA News
  • For Professionals
    • Join the MRA
    • Industry Resources
    • Upcoming Events
  • Contact
  • Subscribe
©2018 Metal Roofing Alliance. All Rights Reserved. Privacy Policy Terms and Conditions