So if your house was built before insulating walls became standard you can potentially save a great deal of energy by insulating.
Adding insulation to walls in existing homes.
Unfortunately however builders didn t insulate the walls of most homes built before the 1980s.
Only a cost benefit analysis in relation to your own situation can help you arrive at the right answer.
While fiberglass often comes in batts it does come in loose fill form as well making it easy to install without tearing open any walls.
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.
Fiberglass is a great way to insulate an existing wall.
In some cases the cost of adding insulation may exceed the cost of energy needed to heat or cool it.
Adding extra insulation to the exterior walls of an older home when renovating or remodeling is a great way of improving a home s walls thermal performance and reducing energy use while reducing heating bills carbon footprint and improving a building s comfort level.
How to insulate house walls from the outside.
Unless your home was specially constructed for energy efficiency you can probably reduce your energy bills by adding more insulation.
With a small hole and a pump you can insulate your existing walls with minimum fuss.
Insulation in house exterior walls is one of the primary defenses against heat and energy loss.
Blow either loose fill cellulose or spray foam into walls from the outside with.