IMO that CoraVent is a junk product.Alot of times when the roll is used it is installed with a nail gun.Sometimes you have an installer that either is inexperienced or just don't care about setting the air pressure to insure a even and proper fastener seating.
If the vent itself is applied with improper fastener seating or over nailing the product by the time you add the ridge cap the product is smashed closed.
I really appreciate the solid 4' sections of RidgeVent.CoraVent has the 4' sections too but if the fasteners are over driven then the vent would fail.So in reality it isn't product failure as much as it is installation error.
I install only hand driven RidgeVent.It is more time consuming but at least I know my installers are not overdriving.
BTW those are some short fasteners for the ridge cap.
Last edited by Roofmaster417; 12-13-2011 at 04:54 PM.