This is because your original insulation r value most likely has dropped from recommended 60 to 20 30.
Adding a layer of insulation to your attic.
But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates.
Because the simplest and cheapest way to insulate an attic is to add material to the floor.
Add additional layers.
Blown in insulation overview.
Now that you ve air sealed your attic and basement check your attic insulation levels and add more if necessary.
Please try again later.
Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder face.
For example if your attic already has fiberglass insulation blankets installed you can improve its r value by installing blown in cellulose insulation on top of the blankets.
If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.
By adding insulation to the attic with existing insulation pros and cons read more.
How much does attic insulation cost.
Unless your home was specially constructed for energy efficiency you can probably reduce your energy bills by adding more insulation.
So this thickness does not stop or prevent your home from heat loss.
The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home.
By adding insulation to your attic you ll not only reduce your monthly utility bills but also enjoy improved energy efficiency and greater comfort throughout the year.
The pros charge 1 500 to 2 000 to do a 1 200 sq ft.
The vapor retarder on top of or between layers of insulation can trap moisture.
Whether you live in a warm weather state as i do or in a cooler northern climate it s hard to stay comfortable and keep your energy bills in check if you don t have adequate insulation in the attic.
Many older homes have less insulation than homes built today but even adding insulation to a newer home can pay for itself within a few years.
Plan to pull up the flooring and layer new insulation on top of the old.
This feature is not available right now.
To install fiberglass batts over existing insulation lay the batts perpendicular to the joists so they do not compress the insulation below.
Stop using your attic for storage.
You can achieve better thermal performance in your attic by adding an additional layer of insulation.
Faced insulation should not be placed on top of existing insulation in the attic.