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
    • Preparing for Hurricane Season
  • 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

Metal Roof over 1.5" virtical battens

Return to Installation

Return to Forum

This is a new Passive House, in a rural area. I'm finalizing details before we build. Hip roof, pitch 6-12, Roof trusses 16oc, cathedral ceiling. Insulation will be 20" dense pack cellulose between top and bottom cords of truss. Primary roof closure: OSB with synthetic underlayment taped or ZIP sheathing taped. (unvented) 2x4 vertical battens, with 1/2" or 5/8" plywood decking, synthetic underlayment and Union Corrugated 1" Advantage-LokII metal roof. The primary roof is permeable and vent above. Thanks for any input you have.
Guest User

6/7/2017
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/22171/find/
So, I take it the plan is decking, vertical battens, more decking, and more underlayment, and then roofing? If that is the case, it sounds like a good plan for energy efficiency and ice dam resistance. I am not sure that underlayment on top of the lower layer of decking is really necessary but I see no harm either. Todd Miller
Todd Miller
Isaiah Industries, Inc.

6/8/2017
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/22172/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
©2023 Metal Roofing Alliance. All Rights Reserved. Privacy Policy Terms and Conditions