How to block off gable vents?


#1

What is the proper way to close off a gable vent so it doesn’t short the ridge vent ventilation system? One roofer said he used ice and water? One said he used foam with plywood board.


#2

Are you talking just blocking from attic side,if so then anything that will make it airtight.


#3

Anything?Even spaghetti?Just Kidding.had to say it…Take care


#4

from attic side you could use plywood,plastic,insulation and peel & stick,or what the other roofers said,a little common sense on makin it airtight…duct tape and plastic would work.


#5

I disagree.


#6

SOme say it disrupts air flow with the gable vents some say it does not. I always used a piece of plywood cut to fit and then used a high grade caulk to seal it so it does not leak any air. AIrvent states it disrupts there ridge vent, some do not even test this.


#7

[quote=“roof-lover”]

I disagree.[/quote]

I agree I have done lots of roofs w/ridgevents leaving gable vents in,some h/o have told me there house was actually cooler in summer compared to before new roof and vents,and the roof still breathed fine thru out the year :mrgreen:


#8

masonv,

There is no good reason to block the gable vents.

These links have more information on attic and roof ventilation.
roofingcontractorreview.com/Roof … -Myth.html

roofingcontractorreview.com/Roof … ation.html


#9

you can never have to many vents properly placed


#10

GAF wont give the Golden Pledge warranty if the gable vents arent blocked off…


#11

Hi mayniac,

There is nothing in the GAF GP warranty that refers to blocking off the gable vents.

gaf.com/Content/Documents/60357.pdf

Is there a requirement elsewhere that states to block off the gable vents to enable the warranty?
Can you post a link to it?

Thanks