Intake Ventilation Vs Exhaust Ventilation - Roofing/Siding - DIY Home Improvement | DIYChatroom


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Roofing/Siding

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

Reply
 
Thread Tools Display Modes
Old 06-05-2010, 05:35 PM   #1
Newbie
 
Join Date: Jun 2009
Posts: 8
Rewards Points: 10
Default

Intake ventilation vs exhaust ventilation


I'm interested in putting in a gable powered fan in a small attic space. The instructions state: "Important: Intake ventilation MUST be at least equal to exhaust ventilation."

If this is not exactly correct, is there some danger involved with this if the intake doesn't match exhaust?

This is a small attic space. It's a shed roof that measures about 24'x12' and it's not a steep roof. There are only 3 existing 22"x4" soffit vents and that's it! I guess that's better than nothing, but it just cooks in there, because it's basically sealed up.

I'm considering trying to put in more soffit vents or put a vent in the other gable end. I'm in a quandary about what is the best scheme. It's easier to put in a gable vent.

Any suggestions would be appreciated!

thx

Advertisement

gwald is offline   Reply With Quote
Old 06-05-2010, 05:55 PM   #2
Shut in w/o Home
 
seeyou's Avatar
 
Join Date: Dec 2008
Location: Lexington, KY
Posts: 696
Rewards Points: 500
Default

Intake ventilation vs exhaust ventilation


If there's not enough intake, then the attic will become depressurized and conditioned air will get sucked from the living space through the hundreds of small holes connecting the two spaces.

Advertisement

seeyou is offline   Reply With Quote
Reply


Thread Tools
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
BAD ADVICE??? You tell me! Bathroom Exhaust Fan Ventilation firefish317 Plumbing 2 04-20-2010 09:23 PM
External intake and exhaust vents monkeysee Building & Construction 4 06-22-2009 08:27 AM
Furnace inducted house ventilation diab0lus HVAC 4 01-29-2009 04:27 PM
Powered Attic Fan question spup345 Roofing/Siding 9 06-30-2008 09:10 PM
Roof/Attic Ventilation pramos67 Roofing/Siding 6 03-30-2007 01:27 PM




Top of Page | View New Posts