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

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

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

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, 09:53 PM   #2
Home Performance
 
HomeSealed's Avatar
 
Join Date: Jan 2008
Location: Milwaukee,WI
Posts: 1,445
Rewards Points: 524
Default

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.
www.HomeSealed.com
HomeSealed is offline   Reply With Quote
Old 04-11-2011, 03:23 AM   #3
Newbie
 
Join Date: Apr 2011
Posts: 11
Rewards Points: 16
Default

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, 08:28 PM   #4
Member
 
Join Date: Oct 2008
Location: Ontario
Posts: 801
Rewards Points: 510
Default

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.
http://www.energysavers.gov/your_hom.../mytopic=11680
SPS-1 is offline   Reply With Quote
Old 04-12-2011, 11:08 PM   #5
Registered User
 
Join Date: Mar 2009
Posts: 9,968
Rewards Points: 2,000
Default

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

Gary
__________________
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
Reply


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 09:14 AM
Radiant Barrier vs. eShield rtc1 HVAC 2 04-08-2010 09:56 PM
Radiant Barrier + Insulation with Metal Roof customfab Building & Construction 8 02-16-2010 09:47 PM
Radiant Barrier Insulation SPS-1 Building & Construction 0 10-26-2009 07:16 PM
Radiant barrier with faced insulation? luci468 Building & Construction 1 07-18-2009 03:49 PM




Top of Page | View New Posts

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