Baffle installation

ammours

Hello there,

I have just started adding insulation to the attic. I have a low roof and I am going to blow enough insulation so that it will cover the first cardboard and probably the second. My question is how to ensure that this cardboard is not going to bend in the future (sticking foam balls on it?) ?

Another question is : Shall I give a space between the two cardboards (which I am going to extend the first one for large run) ? If so, then the insulation will go through.. the reason to add the space is to prevent moisture on baffles themselves.. However, they are waxed.. what do you think ? Please reply asap.

Nick Tomich

The minimum soffit venting should be at least one panel for every 2 solid, unless your using a center vent which is different all together. But here in Indiana its code to put a vent in every other run of a roof joist. It DOESNT matter if its over a vent in the soffit. The whole whole soffit system allows air in thru the soffit into the vent into the attic out the roof vents or vice versa. If air goes in thru a panel and has to make a slight left or right into an air deflector or baffle or durovent (what ever you call them) Its not going to hurt the efficiency or integrity of the ventilation system. For the small air you will gain by doing every run, if cost allows then go for it.

Nick Tomich

You want to Install the bottom one then install the top one into the bottom one. Since this is a retro You cant install The top one first. The reason for this, If you get a leak or condensation build up it will run out to the soffit. Hope that helps!

stevie d

up here in the northeast we found out there is still a lot of heat loss with that method we now put a pic of 2" r max in the in the roof bay up to the vent and sprayfoam so no drafts
it is like putting a sweater on a windy day wind goes right through it until a wind breaker on
same idear steve

jimsonburg

Baffles are often added by homeowners when they are adding extra insulation to their attic. Baffles come in two sizes, 16" and 24" to fit between the rafters of your house. Baffles are located at where the rafters meet the floor of the attic. They can be installed using a staple gun, with the staples spaced about four inches on either side.