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: Metal Roofs in warm/salty climates

affects of radiant barrier on metal roof

Return to Metal Roofs in warm/salty climates

Return to Archive

Return to Forum

This topic has been closed by the administrator. Comments are no longer accepted.
Can you tell me what affects would adding a radiant barrier underneath a metal roof while allowing an air gap would be? Also, what would th increase in temperature be?
Guest User

9/17/2002
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/1105/find/
This is a pretty broad question. First it depends on what type of reflective barrier as some have insulation properties. If you are using it on an uninsulated/unventilated assembly say as an old church roof, then the products properties are better on keeping the hot/cool to the interior of the building. We have achieved very good results with this type on application and helped the customer on lowering their energy requirements. As to reflecting back out the suns rays, you will have the best results by using a lighter colour metal such as white which can reflect up to 65% of the rays in itself and makes the refletive barrier less effective. Having a vented air space under any roof material is also an important thing to do. This will allow any immisive heat to escape before it transfers into the assembly. If you were installing a bare metalic roof or one with a white backer coat, any rays that are reflectd out by the barrier would tend to bounce back. Hope I have been able to help you understand the workings. If you have more detailed questions please contact me directly and I will see what I can dd to help.
Allan Reid
Dura-Loc Roofing Systems, Inc.

9/18/2002
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/1106/find/
  • 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