The format of house insulation you need depends on where you put it and if you need to control moisture.
Attic insulation layers.
Between the two layers of insulation.
Cold areas require a higher r value like an r 49.
The insulation fiberglass or cellulose is then placed on top of the drywall with no vapor barrier above or below.
Keep your space dry with faced insulation.
For diy attic insulation you ve got two choices.
Layer more insulation over the old for more effectiveness.
So with cold weather.
Thus far you will only have installed one layer of batt insulation above the vapor barrier.
Increase your r value by layering insulation.
Although installing insulation in an unheated attic is usually a fairly straightforward job a variety of pitfalls await the unwary.
Improper installation can damage attic framing promote mold.
Now you are going to want to add a second layer of the batt insulation on top of the first.
Both can be added to uninsulated attics or layered over existing material.
The second step in insulating your attic involves building up the layers of your batt insulation.
Loose fill or batt the common term for blanket insulation.
A tip for doubling up on attic insulation.