Vent Pipe Open In Attic - Plumbing - DIY Home Improvement | DIYChatroom

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


Thread Tools Display Modes
Old 02-07-2012, 01:25 AM   #1
Join Date: Apr 2007
Posts: 2,316
Rewards Points: 1,062

vent pipe open in attic

is it OK to leave a vent pipe open in an unused attic (just really a gap between the ceiling and roof, too small to be used) if there is a sizeable side wall grid vent, maybe 4x10" within a foot of it or so? i just don't feel like drilling through the roof and sealing it and all. currently, that's the way i have it (but have not done the ceilings yet) and A) it vents fine and B) does not stink.



amakarevic is offline   Reply With Quote
Old 02-07-2012, 05:09 AM   #2
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 7,833
Rewards Points: 3,772

Some of the gases that rise from a plumbing drain vent are flammable. When allowed to escape into free air, the gases remain at a low enough concentration to not ignite easily.


States can help recovery from hurricanes and tornadoes by not requiring due digence or prompt and timely correction of substandard conditions, and by providing continued liability insurance where companies drop homeowners.
AllanJ is offline   Reply With Quote
The Following User Says Thank You to AllanJ For This Useful Post:
amakarevic (02-07-2012)
Old 02-07-2012, 06:30 AM   #3
Join Date: Dec 2008
Location: Wilmington, DE
Posts: 3,118
Rewards Points: 2,000

The correct answer is NO!!! It must go outside, wether thru the roof or sidewall. Flat roofs can be difficult to seal, so go thru the side. Gable roof flashing is easy to install and works well.
Just Bill is offline   Reply With Quote
The Following User Says Thank You to Just Bill For This Useful Post:
amakarevic (02-07-2012)
Old 02-07-2012, 08:05 AM   #4
Master Plumber
Javiles's Avatar
Join Date: Dec 2011
Location: Miami Florida
Posts: 1,593
Rewards Points: 974

Open vent in an attic, this can make everyone in your house sick, we deal with this all the time.

Experience is Knowing what to do next, Skill is knowing how to do it
Javiles is offline   Reply With Quote
The Following User Says Thank You to Javiles For This Useful Post:
amakarevic (02-07-2012)
Old 02-07-2012, 09:11 PM   #5
Join Date: Oct 2011
Location: PA
Posts: 5,918
Rewards Points: 582

needs vented to outside......
ben's plumbing is offline   Reply With Quote

vent pipes

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
Need to close off or move a vent pipe & drain that goes to nothing mystic_cobra Plumbing 2 04-18-2011 08:14 PM
Bath room vent pipe banovak1 Plumbing 0 04-05-2011 10:24 AM
drain pipe from HVAC in attic dripping on to sheetrock gnostic19 HVAC 7 03-22-2011 03:05 PM
Vent Pipe camel604 Plumbing 2 03-06-2011 08:19 PM
Vent Pipe Stink in house zacker Plumbing 30 12-13-2010 12:19 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1