EcoRenovator  

Go Back   EcoRenovator > Improvements > Renovations & New Construction
Advanced Search
 


Blog 60+ Home Energy Saving Tips Recent Posts Search Today's Posts Mark Forums Read


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 04-07-22, 12:00 AM   #11
ctgottapee
Helper EcoRenovator
 
Join Date: May 2013
Location: Central IL
Posts: 97
Thanks: 34
Thanked 9 Times in 8 Posts
Default

See page 6 of that pdf for where the air 'pocket' should be.

Stapling directly to the deck is effective in the south, as you are preventing heat from radiating down from the sun heated deck, the air pocket being the attack space. Proper attic venting {in a vented attic} eliminates some of these gains as far as installed Rvalue.

Preventing radiating outward toward the deck isn't really an issue, and the dynamics of it don't make for promising Rvalues even when it is. That insulation maker use to provide a diagram on it's label showing relative Rvalues in various situations so you could see the differences.

Note the issues others have mentioned, like keeping it clean, etc.
Also if you don't loop over the rafters, you are skipping a portion of the roof deck and will lose some benefit.

Your best bet would be to return the product and buy a much lower cost wide roll of pre-perf aluminum foil that you can find online or via most lumber yards.


Quote:
Originally Posted by Brandon727 View Post
I'm going to be installing a radiant barrier this weekend, Location lower Central Florida so my only goal is keeping the heat out.
From everything I've read radiant barriers need an air pocket to be effective, but the manufacturer of the radiant barrier suggest you can staple it directly to the deck if in a southern climate. I assume they suggest that method in the south to keep heat out.
Page 3 here http://pdf.lowes.com/productdocument...hRQXZEX0J3RQ.. advises a direct to deck staple method.


Should I hang it between the rafters creating an air channel, or should i staple directly to the deck?

ctgottapee is offline   Reply With Quote
 


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 02:29 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Ad Management by RedTyger
Inactive Reminders By Icora Web Design