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

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 04-03-2005, 10:01 AM   #1
Newbie
 
Join Date: Sep 2004
Posts: 14
Rewards Points: 10
Default

bathroom exhaust


I have just finished adding a master bathroom. I currently have an existing bathroom that is vented directly into the attic(in place before we moved in). Do I run the vent duct up and out the roof? Same with the other existing bathroom?

maintenance is offline   Reply With Quote
Old 04-03-2005, 11:32 AM   #2
Long-Time DIYer
 
Mike Swearingen's Avatar
 
Join Date: Mar 2005
Location: On Albemarle Sound In Northeastern NC
Posts: 1,460
Rewards Points: 500
Default

bathroom exhaust


Yes, or an exterior wall. The primary purpose of bathroom exhaust vents is to dump excessive moisture outside of the home.
Mike

Mike Swearingen is offline   Reply With Quote
Old 04-03-2005, 01:30 PM   #3
Newbie
 
Join Date: Sep 2004
Posts: 14
Rewards Points: 10
Default

bathroom exhaust


Quote:
Originally Posted by Mike Swearingen
Yes, or an exterior wall. The primary purpose of bathroom exhaust vents is to dump excessive moisture outside of the home.
Mike
How would I get it to vent out a side wall? The exhaust is in the ceiling. Would I run it down the stud wall? If so what type of duct would fit ?
Thanks
maintenance is offline   Reply With Quote
Old 04-03-2005, 02:08 PM   #4
Contractor
 
Join Date: Feb 2004
Location: Jensen Beach, FL
Posts: 835
Rewards Points: 500
Default

bathroom exhaust


You can usually find a way to duct it to a gable end or soffit. Try to keep the run as short as possible. If the run is going to be too long, up and out is the answer.
Teetorbilt is offline   Reply With Quote
Old 04-03-2005, 02:54 PM   #5
Long-Time DIYer
 
Mike Swearingen's Avatar
 
Join Date: Mar 2005
Location: On Albemarle Sound In Northeastern NC
Posts: 1,460
Rewards Points: 500
Default

bathroom exhaust


There are exhaust vent covers for walls.
And don't forget to insulate the duct through any unheated space, such as the attic, to help prevent condensation from forming and running back into the exhaust fan during the winter.
Good Luck!
Mike
Mike Swearingen is offline   Reply With Quote
Old 04-03-2005, 08:09 PM   #6
Newbie
 
Join Date: Sep 2004
Posts: 14
Rewards Points: 10
Default

bathroom exhaust


What would be too long a run. From the exhaust vent to the gable end is about 16'. Is that too long. This would be so much easier than going thru the roof. For me.
maintenance is offline   Reply With Quote
Old 04-03-2005, 08:11 PM   #7
Newbie
 
Join Date: Sep 2004
Posts: 14
Rewards Points: 10
Default

bathroom exhaust


Quote:
Originally Posted by Teetorbilt
You can usually find a way to duct it to a gable end or soffit. Try to keep the run as short as possible. If the run is going to be too long, up and out is the answer.
What would be too long? From the exhaust vent to the gable end is about 16'. I would prefer the gable instead of going thru the roof. Whats your thoughts?
maintenance is offline   Reply With Quote
Old 04-03-2005, 09:18 PM   #8
Long-Time DIYer
 
Mike Swearingen's Avatar
 
Join Date: Mar 2005
Location: On Albemarle Sound In Northeastern NC
Posts: 1,460
Rewards Points: 500
Default

bathroom exhaust


You can exhaust it where you prefer. It's better to keep it "shorter" because of the possibility of condensation forming in the duct, but if you insulate it well, it will work.
You can just wrap batts of insulation around the duct and hold it together with duct tape. Don't wrap it tight enough to compress the insulation too much. That defeats the purpose of it.
The main thing is to exhaust that moisture from the bathrooms outside.
Good Luck!
Mike
Mike Swearingen is offline   Reply With Quote
Old 04-03-2005, 09:56 PM   #9
Contractor
 
Join Date: Feb 2004
Location: Jensen Beach, FL
Posts: 835
Rewards Points: 500
Default

bathroom exhaust


It's going to be close! Code allows for a 25ft. run but you have to knock off 5ft for a 90deg. elbo. So now you have a 20ft. run. Code also says that you have to have a 1-12 drop so you're going to have to come up from the fan somewhere around 2 to 3 ft. which gives you a 17-18 ft. run. Pretty close.
CHECK YOUR LOCAL CODES before doing anything!
Teetorbilt is offline   Reply With Quote
Old 04-04-2005, 03:17 PM   #10
Newbie
 
Join Date: Feb 2005
Posts: 25
Rewards Points: 10
Default

bathroom exhaust


Just remember that the HVI CFM rating on bath exhaust fans is at 0" of static pressure. When you add duct the actual performance drops rapidly. So, if you want to move air go the shortest distance possible.
rabadger is offline   Reply With Quote
Old 04-04-2005, 08:14 PM   #11
Contractor
 
Join Date: Feb 2004
Location: Jensen Beach, FL
Posts: 835
Rewards Points: 500
Default

bathroom exhaust


You can also compensate by boosting the fan output, say from 50 CFM to 80 CFM or adding a booster fan in the run.
Teetorbilt is offline   Reply With Quote
Old 04-24-2005, 06:34 AM   #12
747
registered
 
747's Avatar
 
Join Date: Feb 2005
Location: Illinois (kankakee county)
Posts: 1,336
Rewards Points: 508
Default

bathroom exhaust


you never vent a bathroom vent out the roof unless absolutely necessary it could cause a leak. You should vent out the gable end of a house. It would be the same a drilling for a dryer vent. I just seen Tommy Silva do that and say that on Ask this old house. SORRY TEETOR DIDN'T DIDN'T READ ONE OF YOUR FIRST POST ON THIS THREAD.YOU ARE ABSOLUTELY CORRECT WITHOUT DOUGHT. WHAT NO THUMBS ON THIS SIGHT.

Last edited by 747; 04-24-2005 at 06:38 AM. Reason: YOU ARE ABSOLUTELY CORRECT
747 is offline   Reply With Quote
Old 12-09-2007, 04:57 PM   #13
Newbie
 
Join Date: Dec 2007
Posts: 2
Rewards Points: 10
Default

bathroom exhaust


'I have a blue bath with some white spots and dolphins at closet and carpet... It looks clean but I want it to get some life.. what should I add to it? should I change the color?
lolitad is offline   Reply With Quote
Old 12-10-2007, 06:13 AM   #14
Lic. Builder/GC/Remodeler
 
AtlanticWBConst.'s Avatar
 
Join Date: May 2006
Location: New England
Posts: 7,556
Rewards Points: 2,000
Default

bathroom exhaust


Quote:
Originally Posted by lolitad View Post
'I have a blue bath with some white spots and dolphins at closet and carpet... It looks clean but I want it to get some life.. what should I add to it? should I change the color?
Hi,

Thanks for posting your question on the site.
What you really need to do, to get answers to your questions, is to start a new thread in the "Home Decorating" forum. That is the proper way to get answers to an unrelated question (to this thread) that you may have.

(What you are doing here is what is refered to as "High-Jacking" someone else's thread = )

Last edited by AtlanticWBConst.; 12-10-2007 at 06:22 AM.
AtlanticWBConst. is offline   Reply With Quote
Old 12-10-2007, 06:27 AM   #15
Newbie
 
Join Date: Dec 2007
Posts: 2
Rewards Points: 10
Default

bathroom exhaust


thanks for your answer.. I'm new here so.. sorry
I'll try to post a new thread with my questions
thanks one more time

lolitad 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
New exhaust fan install in a old bathroom? tom6024 Electrical 11 03-12-2007 10:32 AM
Bathroom Exhaust Fan Questions AllGoNoShow Remodeling 10 11-11-2006 07:59 AM
Bathroom exhaust question Horace HVAC 4 07-27-2006 07:54 AM
Bathroom exhaust problems HomeRepairNoob HVAC 9 04-18-2006 09:33 AM
2 bathroom exhaust fans to one outside vent pipe? CGofMP HVAC 2 03-25-2005 09:45 PM




Top of Page | View New Posts

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