Without baffles you must keep vents clear of insulation which means the space around the vent typically receives no blanket of protection.
My attic does not have baffles.
Told that the 2 attic power vents are the only attic ventilation i have the house does have vented soffits every other soffit cover is vented.
Manufacturers make baffles in 14 1 2 as well as 22 1 2.
Basic functions of baffles.
This creates a natural air flow by drawing in the air from outside pushing it up and out through the vent at the top of the house.
If you don t have baffles installed check your intake vents for any type of blockage for insulation or debris.
Not sure i follow this but it sounds like you have two vents in the gable ends of the attic and three box type roof vents.
Fasten blocking around the hatch or door to allow the material to be installed around this area without escaping.
Could it make sense to do site built baffles rigid foam all the way up my rafter bay from the soffit to the roof line so the rafter cavity is enclosed with 2 in gap for air flow of course and then run duct from each rafter bay to the attic.
Things have been ok low energy bills house very comfortable.
Are the two gable vents above or behind the kneewall.
In either case this is nowhere near enough ventilation in my opinion.
The most common way to add ventilation to an attic is by installing air intakes in the soffits and putting an outlet at the gable of the house.
Baffles are chutes that when installed properly can provide a channel for air to flow from your exterior soffit vents up into your attic space.
The answer is rafter venting.
Don t be baffled by baffles.
Check your attic for baffles.
Make sure the fill s depth is uniform across the attic.
Noticed one of the attic vents was not working.
This is called passive ventilation.
If you go up into your attic look for baffles between rafters.
Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof.
If this does happen the soffit vents will not function as best as they should and therefore supporting the formation of mold or fungi rather than preventing it.
To make it easy to eyeball how level the material is as you blow it in screw depth guides to joists throughout the space.
Keep in mind not all rafter need baffles just those with intake vents at the soffit.
Baffles are a critical component to our attic insulation process that provides multiple benefits to a difficult construction aspect.
