Conditioned Area

 
Thread Tools Search this Thread Display Modes
Old 09-22-2006, 03:21 PM   #1
New Guy
 
stangit92's Avatar
 
Trade: roofing & siding
Join Date: Aug 2006
Posts: 25
Rewards Points: 10

Conditioned Area


Got into and intreasting conversation with a home owner here in Houston, Tx and was curious about other contractors thoughts.

Basically the O/H got into a conversation with me about a uncle of his who lives out in florida some where, and how they are now installing this type of foam insulation on all the framing and under decking of the roof to create a conditioned zone.

well so I was some what intreasted in the applications and products, so I mentioned it to a good A/C buddy of mine who, in end replied with how it will "rought off your roof and sheathing. mentioned also how the radiant barrier paint, basically the does the same thing and they had problems with that as well as it trapped moisture and created mold or mildew"....


So im just intreasted what ya'lls idea would be on this ..
stangit92 is offline  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

   
 

Old 09-22-2006, 03:49 PM   #2
My custom title
 
Brushslingers's Avatar
 
Trade: Painting, faux, rock, plaster, texture, tile, laminates, finish carpentry contractor
Join Date: Jul 2006
Location: Tallahassee, FL
Posts: 1,559
Rewards Points: 1,000

Re: Conditioned Area


House has to breathe, really.. i've sealed up footer boards to keep bugs out, etc... but sealing a house airtight is bad. You can kill a rat by leaving cola in a dish, they can't burp so they blow thier insides... same deal as a house... well sorta, in a weird way.

__________________
Benn

Quote:
Originally Posted by Brian
Paint does a lot more than put color on a surface. It protects surfaces, it can reduce maintenance costs, it can enhance lives.
Brushslingers is offline  
Old 09-22-2006, 04:09 PM   #3
DGR,IABD
 
mdshunk's Avatar
 
Trade: Electrical; Commercial and Residential Service
Join Date: Mar 2005
Location: Central PA
Posts: 9,682
Rewards Points: 2,000

Re: Conditioned Area


If you feel like you must create a vivarium or terrarium out of your house (that is literally what those urethane foamed houses turn into), an air to air heat exchanger is an ABSOLUTE MUST to maintin the indoor air quality. If the underside of the sheathing is foamed up against, you need to use that scrim type stuff under the shingles so that the sheathing can have and effluence path from above instead of it's more typical route below.
mdshunk is offline  
Old 09-22-2006, 06:00 PM   #4
New Guy
 
stangit92's Avatar
 
Trade: roofing & siding
Join Date: Aug 2006
Posts: 25
Rewards Points: 10

Re: Conditioned Area


Yeah from what this guy mentioned to me about the foam it almost seemed to good to be true. (at least in the humid Texas areas)

oh well I guess he's just gunna have to be stuck with his $1800 a summer month electric bill
stangit92 is offline  
Old 09-22-2006, 06:09 PM   #5
Pro
 
Teetorbilt's Avatar
 
Trade: Residential Contractor
Join Date: Feb 2004
Location: Jensen Beach, FL
Posts: 10,474
Rewards Points: 2,000

Re: Conditioned Area


I'm beginning to see it more often now that energy costs are going up.

In conditioned space building you do not insulate the ceilings. Air transfer take place through the penetrations.
__________________
You can't solve you're problems with the same level of thinking that created the problems.

Albert Einstein
Teetorbilt is offline  
Old 09-22-2006, 08:00 PM   #6
New Guy
 
stangit92's Avatar
 
Trade: roofing & siding
Join Date: Aug 2006
Posts: 25
Rewards Points: 10

Re: Conditioned Area


Quote:
Originally Posted by Teetorbilt View Post
I'm beginning to see it more often now that energy costs are going up.

In conditioned space building you do not insulate the ceilings. Air transfer take place through the penetrations.

its a 5200 sqft 2 story house. with a gentleman in his 350 to 400 lb range that likes to sleep with the a/c down to 68 at night.


what penetrations are you talking about. I believe most reviews on the foam process say to block all attic vents. I also contacted Elk to see if there would be any warrenty issues reguarding the foam or elastomeric type of radiant barrier applications.
stangit92 is offline  
Old 09-22-2006, 08:43 PM   #7
Pro
 
Teetorbilt's Avatar
 
Trade: Residential Contractor
Join Date: Feb 2004
Location: Jensen Beach, FL
Posts: 10,474
Rewards Points: 2,000

Re: Conditioned Area


Let me preface this by saying that this is not my area of expertise BUT I was considering getting into the sprayfoam business a few years ago and did a lot of reading on the concept.

What THEY say is that there is enough transfer through ceiling penetrations (can lights, bath fans, ceiling light/fan boxes, et.al.) to prevent excessive accumulation of moisture in the attic space.

You can learn more here: http://www.buildingscience.com/
__________________
You can't solve you're problems with the same level of thinking that created the problems.

Albert Einstein
Teetorbilt is offline  
Old 09-22-2006, 08:46 PM   #8
Pro
 
Tscarborough's Avatar
 
Trade: Monkey Scratching Cat Herder
Join Date: Feb 2006
Location: Austin
Posts: 5,900
Rewards Points: 2,338

Re: Conditioned Area


Foaming your house turns it into a snake enclosure?!
Tscarborough is offline  
Old 09-22-2006, 08:59 PM   #9
New Guy
 
stangit92's Avatar
 
Trade: roofing & siding
Join Date: Aug 2006
Posts: 25
Rewards Points: 10

Re: Conditioned Area


or a small return air ....

but then that still doesnt change the fact sheathing still wont be able to breath?? correct which would cause the rot...

stangit92 is offline  


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Siding & Windows Sales needed - Chicago area - NO SALES EXPERIENCE Grumpy Help Wanted or Looking For Work 4 05-26-2009 02:51 PM
Proposals...... AAPaint Painting & Finish Work 3 08-25-2007 08:47 AM
Upstate NY area in need of contractors... Sellncars Remodeling 4 08-12-2006 09:45 AM
Anyone in the Tacoma WA Area skatchmo Marketing & Sales 2 11-23-2005 02:40 PM

Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?