Replies

1. 
   kate | Sep 07, 2005 01:50am | #1

   I will be interested in this answer, too, as I'm just about to vent a perviously unvented roof, in the process of replacing the old shingles.  I'm leaning toward Cor-a-vent, but this is the place to get info!

2. 
   Dinosaur | Sep 07, 2005 04:20am | #2

   You have a choice between a perforated metal strip that is inserted between two adjacent planks in your cedar soffit, or a series of round grills that plug into holes you punch into a plank with a hole saw.

   The only thing I know about CoraVent is their ridge vent item. It is useless where I am (too much snow); and it's not a soffit vent anyway. Possibly Cora makes a soffit strip vent I'm not aware of.

    

   Dinosaur

   A day may come when the courage of men fails,when we forsake our friends and break all bonds of fellowship...

   

   But it is not this day.

1. 
   DYoder | Sep 07, 2005 04:22pm | #3

   Thanks Dinosaur.

    

   I'll check with one of the supply co's and let you know what I find and decide to go with.

2. 
   DDay | Sep 07, 2005 08:22pm | #4

   Cora makes a soffit vent that is based on their ridge vent design.  I think it really started to show up about six months ago around here, most around here are using it right behind the fascia which is nice because you never see the vent unless your right up against the house looking up.  The only thing is you need to cut out a small square on the bottom of the rafter tail or use blocking on the end of the rafter tails and put the vent there.

   http://www.cor-a-vent.com/PDF/V400E&S400ComboSht.pdf

   One type of similar idea for soffit venting is to use metal drywall corner lath on the bottom edge of the rafter tail, right behind the fascia.  Then you would leave the soffit material 1" from the fascia.  To keep the lath from being visible (the shine of the metal) you can paint it black.  The location is the same as the coravent but the look is even less visible, even on low soffits the black lath is nearly invisible even when you know it is there and you are looking for it. 

   http://amico-lath.com/lath/striplath_cornalath.htm 

1. 
   Dinosaur | Sep 08, 2005 01:58am | #5

   I hadn't seen that Cora Vent stuff before, but there's a similar product that was introduced up here in the last year. My take on it is it's not particularly resistant to chewin'-type varmints that are looking for a dry place to have their babies. So usually I'll use a metal pop-in or strip.

   If I'm going to use strip vents, I have my sheet-metal guy fabricate them to my spec; it doesn't cost a lot and he can make them from 2" wide on up in decent, heavy-gauge stock the critters don't like trying to gnaw past....

   Dinosaur

   A day may come when the courage of men fails,when we forsake our friends and break all bonds of fellowship...

   But it is not this day.

3. 
   blue_eyed_devil | Sep 08, 2005 03:13am | #6

   Pulte uses a "corevent". It's a little plastic continuous vent that you nail onto the end of the soffit. It works ok after you figure out how to construct the soffit system.

   blue

    

1. 
   Lansdown | Sep 08, 2005 03:34am | #7

   Another option is to use copper screening between two boards in the soffit. Quite attractive, just remember to spray paint the rafter tails flat black.

4. 
   Danno | Sep 08, 2005 03:59am | #8

   When I took architectural drafting (back when you actually used mechanical pencils and drew on paper) my teacher had a nice vent detail that he built into the fascia--two boards one over lapping the other (nailed to the rafter tails) and spaced an inch or so away so there was a continuous slot (which was screened). Looked nice--made a nice shadow line.

5. 
   TeufelHunden | Sep 08, 2005 04:18am | #9

   Take a look at http://www.tamlyn.com. They have an assortment of continuous soffit vents.

1. 
   Sphere | Sep 08, 2005 04:35am | #10

   Hardie makes a perf. soffit as well.  Spheramid Enterprises Architectural Woodworks