Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Insulation


Thread Tools Search this Thread Display Modes
Old 04-10-2011, 05:53 PM   #1
Join Date: Apr 2011
Posts: 11
Rewards Points: 16

Radiant Barrier Dilemma

I've been researching radiant barriers for my attic, which has 6" of floor
fiberglass insulation and noticed that there's a choice between single, double bubble barriers and layers of aluminum foil and other materials, with the cost the highest for the bubbles. Is there a significant difference in heat reflection, given the insulation already in place? Which should I buy?

thailen is offline   Reply With Quote
Old 04-10-2011, 10:53 PM   #2
Home Performance
HomeSealed's Avatar
Join Date: Jan 2008
Location: Milwaukee,WI
Posts: 1,474
Rewards Points: 582

Radiant Barrier Dilemma

Where do you live? Radiant barriers are not a good investment in all locations... Regardless, you need to maje sure that you attic is properly air-sealed and insulated to code before giving it any consideration.

Replacement Windows, doors, siding, roofing, insulation, and certified energy consulting.
HomeSealed is offline   Reply With Quote
Old 04-11-2011, 04:23 AM   #3
Join Date: Apr 2011
Posts: 11
Rewards Points: 16

Radiant Barrier Dilemma

In New Orleans, where summer usually lasts from April - November and winters are very mild.
thailen is offline   Reply With Quote
Old 04-12-2011, 09:28 PM   #4
Join Date: Oct 2008
Location: Ontario
Posts: 832
Rewards Points: 572

Radiant Barrier Dilemma

I thought that radiant barriers in a hot climate were normally on the underside of the roof. The first result from a Google search seems to agree with me.
SPS-1 is online now   Reply With Quote
Old 04-13-2011, 12:08 AM   #5
Registered User
Join Date: Mar 2009
Posts: 9,967
Rewards Points: 2,000

Radiant Barrier Dilemma

Your 6" of insulation is about R-20, yet your area, Zone #2, requires R-30. I would air seal, as H.S. said, then add 1/3 more to at least the minimum Code; http://publicecodes.citation.com/ico..._11_sec002.htm

If any ads are present in my answer above, I do not condone/support/use the product or services listed, they are there against my permission.
Gary in WA is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Radiant barrier and realtive humidity question ahmed HVAC 0 12-07-2010 10:14 AM
Radiant Barrier vs. eShield rtc1 HVAC 2 04-08-2010 10:56 PM
Radiant Barrier + Insulation with Metal Roof customfab Building & Construction 8 02-16-2010 10:47 PM
Radiant Barrier Insulation SPS-1 Building & Construction 0 10-26-2009 08:16 PM
Radiant barrier with faced insulation? luci468 Building & Construction 1 07-18-2009 04:49 PM

Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.