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Should I include a radiant barrier in my new roof installation in Northern California?

by LiveModern Webmaster last modified Jan 04, 2012 02:08 AM
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by last modified Jan 30, 2011

I will replace wood shakes on an A-frame in Northern CA on the coast with satnding seam metal and thought a radiant barrier under the metal might be a very effective first defense; raising the roof on 1x3 firring strips above the decking since the manufacturer says the barrier needs a small space to be effective. Radiant barrier would go on the decking, then firring strips, then roof. Is this a worthwhile investment? Any major cons? I installed a radiant barrier in my home below the joists




 

 

I love standing-seam metal roofs; they look great.

When assessing existing homes, the first priority in slowing down unconditioned attic air from entering the conditioned space is to create a thermal boundary at the floor of the attic.

Air sealing attic bypasses, chases, and penetrations; looking at recessed lights and determining if they are ICAT-rated; then insulating with blown-in insulation to R-38 is the first priority.

Once the most effective measures are in place then adding a properly installed radiant barrier makes sense. Radiant barriers need to be cleaned every now and then as dust will reduce the performance over time.


 

 

 
 
 

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