Focus on the other ventilation you have in the attic.
My attic has no insulation.
If you are installing a new roof consider a drip edge vent.
Attic ventilation depending on the size of the home be sure there is plenty of roof vents.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Attic insulation r 50 is now the code.
If your attic insulation covers your joists and is distributed evenly you probably have enough.
Preferably some at the top of the roof and some at the bottom.
When using insulation that has either paper or plastic facing.
Unvented attic assemblies unvented attics rely on an air impermeable insulation installed to the roof deck s underside i e.
For diy attic insulation you ve got two choices.
To see how to add insulation out to the eaves see installing rafter vents.
It is important that the insulation be evenly distributed with no low spots.
Poor insulation is usually the culprit although if you enter the attic on sunny winter day your attic space can be warmed by the sun more than your furnace.
Attic ceiling to stop airborne moisture from reaching a cold surface and condensing inside the building envelope.
Old homes rarely have anything near that.
You can use either faced or unfaced batting for this installation.
Thick insulation between 14 and 18 inches is what is needed in most cases but that s not all.
Loose fill or batt the common term for blanket insulation.
Install low gable vents located above the top level of the attic ceiling insulation use eye brow vents that are on the top of the sloping roof surface near the soffit eave area.
They include rafters and ceiling joists that are damp or blackened with mold.
Inspect the attic if your attic is not sufficiently vented you probably won t have to look very hard to find signs.
Sometimes there is enough insulation in the middle of the attic and very little along the eaves.
You are unable to keep the hot air from getting into the attic because there is no insulation to protect the attic from the hot air.
Install batting between the roof rafters for finished attic spaces.