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  1. #1
    cory nystul's Avatar
    cory nystul Guest

    Default Ridge vents Homemade? Shingles extedning over fascia?

    I was on a roof today that had SO many issues its not even funny.

    TWO questions

    #1. Is there a requirement for how far a shingle should extend over the fascia?

    #2. Is the below ridge vent homemade? I have never seen this before. It is not fully covered by the shingles and it also extended off the end of the roof a good 6-8"
    rodge.jpg

    2018 ASHI InspectionWorld

  2. #2
    Join Date
    Feb 2009
    Location
    Southern Vancouver Island
    Posts
    4,549

    Default Re: Ridge vents Homemade? Shingles extedning over fascia?

    Your pic doesn't show us anything.
    Message to the 3 Corys.

    John Kogel, RHI, BC HI Lic #47455
    www.allsafehome.ca

  3. #3
    Join Date
    Mar 2007
    Location
    Orlando, FL
    Posts
    1,340

    Default Re: Ridge vents Homemade? Shingles extedning over fascia?

    The ridge vent has a built in edge or louver, see them frequently. Keeps horizontal wind driven rain out.

    Dom.


  4. #4
    Join Date
    Aug 2007
    Location
    Memphis TN.
    Posts
    4,311

    Default Re: Ridge vents Homemade? Shingles extedning over fascia?

    Quote Originally Posted by Dom D'Agostino View Post
    The ridge vent has a built in edge or louver, see them frequently. Keeps horizontal wind driven rain out.

    Dom.
    Cory,

    They also should not be installed to the end of the ridge but back as you described .

    It Might have Choked Artie But it ain't gone'a choke Stymie! Our Gang " The Pooch " (1932)
    Billy J. Stephens HI Service Memphis TN.

  5. #5
    Join Date
    Apr 2013
    Location
    MI
    Posts
    1

    Default Re: Ridge vents Homemade? Shingles extedning over fascia?

    Quote Originally Posted by cory nystul View Post
    I was on a roof today that had SO many issues its not even funny.

    TWO questions

    #1. Is there a requirement for how far a shingle should extend over the fascia?

    #2. Is the below ridge vent homemade? I have never seen this before. It is not fully covered by the shingles and it also extended off the end of the roof a good 6-8"
    rodge.jpg
    This is an externally baffled ridge vent. This creates a Bernoulli effect, causing low pressure to develop on both sides of the vent which literally pulls air out of the attic. This is a very good type of ridge vent.


  6. #6
    Join Date
    Mar 2007
    Location
    Spring City/Surrounding Philadelphia area
    Posts
    3,473

    Default Re: Ridge vents Homemade? Shingles extedning over fascia?

    I recommend baffled ridge vents over mesh ridge vents. The mesh ridge vents can be short circuited by winds as little as 5 mph that blow perpendicular to the mesh opening. The baffle pushes wind over top of the vent and creates the Bernoulli effect like Jacob mentioned.

    "It takes a big man to cry. It takes an even bigger man to laugh at that man". - Jack Handey

  7. #7
    Join Date
    Mar 2012
    Location
    Lansdale, PA
    Posts
    876

    Default Re: Ridge vents Homemade? Shingles extedning over fascia?

    I believe the answer to the first question is typically 3/4".


  8. #8
    Join Date
    Nov 2013
    Location
    United States
    Posts
    15

    Default Re: Ridge vents Homemade? Shingles extedning over fascia?

    One should always read the directions printed on the shingle pack. I have done roofing, and seen lots of other's work. I rarely see roofers adhering to the directions on the pack. Typically, manufacturers recommend 1/2 to 3/4 inch extension beyond the drip edge (if the installer put drip edges on, many don't), otherwise same distance on whatever is there. I have seen edges extended two inches or more past roof edges, they invariably bend and break, exposing vulnerable materials.


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