New Ridge Vent Installed Correctly?

Thread Tools Search this Thread Display Modes
Old 03-21-2007, 06:38 PM   #1
New Guy
itwerx2's Avatar
Trade: material distribution
Join Date: Mar 2007
Posts: 19
Rewards Points: 10

New Ridge Vent Installed Correctly?

Greetings- I went up into the attic space to see what the new ridge vent looked like from the inside. I cannot see any opening or even light coming in up along the ridge. Is this the way it should be ? Should I be able to see the vent itself or at least some light coming in? (Also FWIW, , the new soffit vents are still full of insulation. Also the shingles and opening over the ridge vent outside are very uneven and sloppy.) Comments appreciated. Thanks.
itwerx2 is offline  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. 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 03-21-2007, 07:06 PM   #2
Ed the Roofer's Avatar
Trade: Roofing Contractor
Join Date: Dec 2006
Location: NW Suburbs of Chicago
Posts: 7,157
Rewards Points: 2,054

Re: New Ridge Vent Installed Correctly?

The manufacturer of each ridge vent product will have their own specifications on how wide the slot along the top of the ridge must be cut, and that varies if their is a ridge beam in place versus truss construction.

Typically, it is about 2 1/2 to 3 inches wide, measuring horizontally across from one side of the cut to the opposite cut side.

The opening should be 100 % unobstructed, although realistically, a slight jagged cut on the top course of shingle would be likely to occur.

The clogged soffit ventilation completely thwarts any intake funcionability that the intake vents were designed to allow.

You need to know how many square inches of NFVA exhaust per foot that the brand of ridge vent installed provides and the NFVA of the soffit fresh air intake should be at least equal. The product manufacturers literature and/or website should provide you with the correct specifications.

Don't get all hyper if the deviation is just a small amount out of specified parameters.

The ideal scenario is 60 % intake NFA to 40 % exhaust NFA, or at least a 50 % equal split between the two systems.

Some ridge vent products may not seemingly allow light to be visible, while other products may seem as if too much light is coming through. Neither is an indication of the proper functioning of the ventilation product. That is soley determined on the amount of free air space provided for the vent to function at its maximum designed capacity.



Last edited by Ed the Roofer; 03-21-2007 at 07:56 PM.
Ed the Roofer is offline  
Old 03-27-2007, 12:07 AM   #3
3rd gen,it's in the blood
roofwiz74's Avatar
Trade: roofing
Join Date: Oct 2006
Location: Roellen,TN
Posts: 458
Rewards Points: 250

Re: New Ridge Vent Installed Correctly?

I had something to say,but.....
You have ONE advantage over can kiss my butt and I can't!!

Last edited by roofwiz74; 03-27-2007 at 12:41 AM.
roofwiz74 is offline  
Old 03-27-2007, 12:39 AM   #4
747's Avatar
Trade: Wood working in spare time.
Join Date: Jan 2005
Location: kankakee county,Illinois
Posts: 1,539
Rewards Points: 1,000

Re: New Ridge Vent Installed Correctly?

Nobody can answer the ridgevent question without actual eye inspection. But the soffitts vents need to be free from ANY INSULATION OBSTRUCTION. They need to breath. So get the insulation out of the soffit vents.
747 is offline  
Old 04-01-2007, 10:05 AM   #5
PA woodbutcher's Avatar
Trade: Remodeling
Join Date: Mar 2007
Location: Northeast, Pa
Posts: 1,965
Rewards Points: 1,000

Re: New Ridge Vent Installed Correctly?

Originally Posted by itwerx2 View Post
(Also FWIW, , the new soffit vents are still full of insulation. .
No baffles?
PA woodbutcher is offline  
Old 04-01-2007, 11:23 AM   #6
Ed the Roofer's Avatar
Trade: Roofing Contractor
Join Date: Dec 2006
Location: NW Suburbs of Chicago
Posts: 7,157
Rewards Points: 2,054

Re: New Ridge Vent Installed Correctly?

Even if baffles, also known as rafter vents, are installed, the loose accumulation of insulation over the intake vents must be hand removed prior to closing up the area.

Ed the Roofer is offline  
Old 04-01-2007, 03:38 PM   #7
slickshift's Avatar
Trade: Rock Disciple
Join Date: Jun 2005
Location: Cape Cod, Massachusetts
Posts: 5,234
Rewards Points: 2,000

Re: New Ridge Vent Installed Correctly?

Thanks for posting on The Moderators of this forum would prefer if you post Do It Yourself related topics on our sister site is designed for professional contractor's to discuss issues and topics related to the construction and remodeling industries. Many of our professional contractors are also members at and are looking forward to assist you with your needs.

Please take a moment to post your question at If your not already a member of you can sign up for a free account by going to

We apologize for any inconvenience that this may have caused. This thread has been closed.


Signature Quote
Originally Posted by ModernStyle
I have never used this crap before and I pray to the paint gods that I never have to use it again, I would rather use Behr
slickshift 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
Do I need a ridge vent? jritkes Roofing 17 01-12-2013 10:17 PM
ridge vent versus traditional vents signal15 Roofing 16 02-11-2011 04:16 PM
Ridge vent issues? apkole Roofing 4 05-08-2007 05:46 PM
Whats the purpose of a ridge vent? Magnettica Roofing 22 04-22-2007 04:16 PM
Which ridge vent to use Tommy V Roofing 16 03-06-2006 04:38 PM

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

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for

At 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 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?