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  1. #1
    Neil Solloway's Avatar
    Neil Solloway Guest

    Default Ridge Vent Placement

    My roofer chose to place the ridge vents separate and equally spaced across the ridge line. The amount of ventilation is correct, it actually comes in at 1/150. instead of a continuous line of four(4) vent together he separated them. Is this code? I cannot find anything that state they must be continuous, only the amount of ventilation

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  2. #2

    Default Re: Ridge Vent Placement

    There's no one size fits all ventilation design-- I'm just impressed your roofer put in enough ventilation to comply with min. building codes........


  3. #3
    Join Date
    Mar 2007
    Location
    Lake Barrington, IL
    Posts
    1,363

    Default Re: Ridge Vent Placement

    So why doesn't the roofer want to run the full length of the ridge? Could it possibly be so that he could be more competitive? You can never have too much ventilation. Also, I don't like ridge vents - they block up too quickly with airborne particles. I looked at a 6 year old attic yesterday and the ridge vent's filter media was 90% blocked. For what ever reason, roofers think that these things are the cat's pajamas.

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    Eric Barker, ACI
    Lake Barrington, IL

  4. #4

    Default Re: Ridge Vent Placement

    Lots of different kinds of ridge vents. Good point on some of them needing regular maintenance.

    Egbert Jager
    Diamond Home Inspection
    http://www.diamondhomeinspection.ca

  5. #5
    Join Date
    Nov 2011
    Location
    Oregon, USA
    Posts
    333

    Default Re: Ridge Vent Placement

    I'm with you, Eric. I've never been lucky eough to meet a ridge vent that I liked (meaning it was functional). They all tend to plug up after a year or two of service. Maybe I've just been looking at the cheapo versions(?).


  6. #6
    Neil Solloway's Avatar
    Neil Solloway Guest

    Default Re: Ridge Vent Placement

    Eric,

    So why doesn't the roofer want to run the full length of the ridge? Could it possibly be so that he could be more competitive? You can never have too much ventilation. Also, I don't like ridge vents - they block up too quickly with airborne particles. I looked at a 6 year old attic yesterday and the ridge vent's filter media was 90% blocked. For what ever reason, roofers think that these things are the cat's pajamas.
    Has nothing to do with cost, they are only ~$10 a piece, it was simply a look, and as I said we met code for 1/150. We were replacing a roof that had ridge vents, so easiest route.

    Does anyone have an answer to my question ? Is there anything in the code about needing the ridge vents together or can they be separated. We used GAF SnowCountry vents

    THANK YOU


  7. #7

    Default Re: Ridge Vent Placement

    Does anyone have an answer to my question ? Is there anything in the code about needing the ridge vents together or can they be separated. We used GAF SnowCountry vents
    Code says use X amount of ventilation, which you say you did, and follow manufacturer's installation instructions. As long as you followed the instructions, you're OK.

    http://www.gaf.com/Residential_Roofi...structions.pdf



    You're welcome........






    For a uniform appearance, install Cobra 4" rigid vent over the entire length of the ridge, making sure that the vent extends past the slot opening

    Last edited by Brandon Whitmore; 11-05-2012 at 08:31 PM.

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