attic venting

Reply

  #1  
Old 03-04-06, 01:53 PM
Member
Thread Starter
Join Date: Mar 2006
Posts: 1
Received 0 Votes on 0 Posts
attic venting

i recently replaced roof thanks to Katrina........previously i had, and still retain a power vent.....and
during the re-roofing, i had a ridge vent installed.............
can both vents operate productively or does one negate the other?
that is, should i continue to utilize power vent , or shut it off?
thanks.........ejpo
 
Sponsored Links
  #2  
Old 03-04-06, 02:08 PM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Location: USA
Posts: 23,311
Received 214 Votes on 199 Posts
An inspection was done on a similar situation that existed on a building in my area, and the inspector advised that the power vent be completely removed. The reasoning being that the power vent interferes with the natural flow of air from soffit to ridge. A power vent could just as easily be pulling air into the ridge vent (using it as an intake) rather than pulling air in though the soffits as most ventilation is designed to be taken from.

Unless your power vent is there to ensure the temperature or humidity does not exceed a certain recommended level, I'd suggest you not only disconnnect but that you remove it.
 
  #3  
Old 03-05-06, 12:48 AM
Banned. Rule And/Or Policy Violation
Join Date: Mar 2006
Location: Bend
Posts: 8
Received 0 Votes on 0 Posts
Too much?

You can't really have too much venting. You probably don't need to run the power vent any longer (assuming that you have vents at the soffets) but it won't hurt anything if you allow it to run.
-Best
 
  #4  
Old 03-05-06, 06:09 AM
sitedrifter
Visiting Guest
Posts: n/a
Originally Posted by bestmetalroof
You can't really have too much venting. You probably don't need to run the power vent any longer (assuming that you have vents at the soffets) but it won't hurt anything if you allow it to run.
-Best

This is wrong. Most likely you have an unbalanced system right now and as one poster said, you might pull air in through the ridge with the power fan, negating proper flow.

I went through these same questions a month or so ago and researched it and found, no power venting with a ridge vent, just about everywhere that talked about proper roof venting.

I am going with soffit vents and a ridge vent and am having my power vent removed and the gable vents closed off. Checkout GAF , Owens Corning and other shingle manufacturers websites. They all talk about proper roof ventilation and will help you understand what you need.


Site
 
Reply

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


Thread Tools
Search this Thread
Display Modes
 
Ask a Question
Question Title:
Description:
Your question will be posted in: