How to insulate a finished attic.
Attic insulation to cool house.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
If you live in an older house you ll have to inspect the insulation.
The higher the r value the better the thermal performance of the insulation.
The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.
If you live in a newer house you can probably get this information from the builder.
Having insulation in your attic can help you save up to 20 in heating and cooling costs.
Add the right kind of insulation.
R value is a measure of insulation s ability to resist heat flow.
In order to facilitate this exchange of warm and cool air the general rule of thumb suggests installing at least 1 sq.
Just as insulation keeps heat in during winter it helps keep it out during summer.
So it s time to pay close attention to what s happening up there.
Wall insulation can reduce a home s heat loss by 67 while attic insulation can lead to a 40 decrease in heating and cooling costs.
And having insulation in your attic keeps the area at a consistent temperature.
And they d still want to have the ceiling air sealed and fully insulated to minimize heat transfer from the attic to the house.
A finished attic should be insulated much like the rest of the house with insulation in the walls and ceiling.
You want high quality insulation in your attic as it will ensure that the cool air from your air conditioner can t escape your home.
Insulating basement walls or slab foundation can reduce heating costs by10 to 20.
Your attic insulation that s what.
Of vent for every 300 sq.
10 of your home heating bill costs stem from uninsulated floors.
In that case what they really need is a whole house fan not a powered attic ventilator.
Thickness must not be used as the sole factor in determining the r value of loose fill insulation particularly for attic insulation.
That means insulating the attic floor only not the walls and having vents in the roof.
With a finished attic insulation must help keep the attic areas comfortable.
If you ve got a two story house and you re used to upstairs rooms always being hotter than downstairs rooms it s not necessarily because the heat inside your home is rising to the upper floor.