The table below shows what levels of insulation are cost effective for different climates and locations in the home.
Attic insulation is used to.
Sheathing reduces heat conduction through structural elements like wood and steel studs.
Gaps in the attic or between the lower floors and the attic will let heated or cooled air escape to the great unconditioned outdoors making any insulation you add essentially useless.
Find a diagram of common air leaks here.
One of the most common materials containing asbestos fibers is attic and wall insulation.
Batt and roll insulation works well between joist and stud spaces or if you have a wide open space or a crawlspace.
Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.
See install batt and roll insulation for details.
The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
Facing is a thin layer of paper or plastic attached to one side of batting insulation which is sold in a roll.
Insulation level are specified by r value.
Rigid panels of insulation.
There are two main types of insulation.
The higher the r value the better the thermal performance of the insulation.
Batt and roll insulation and loose fill sometimes known as blown in insulation.
Whether you choose faced or unfaced insulation for the attic depends on the.
If you feel like your.
With closed cell foam 2 inches of thickness also serves as a moisture barrier.
You can achieve better thermal performance in your attic by adding an additional layer of insulation.
Can be used to insulate almost any part of your home from the roof down to the foundation.
When installed properly both types of insulation fill all of the nooks and crannies in a space and make for a perfect air barrier.
So it s time to pay close attention to what s happening up there.
When air can t move through it you have zero heat transfer through convection.
But just because your insulation is old doesn t mean it is dangerous.
Loose fill blown in insulation is best for tight spaces or if your attic already has a layer of insulation.
In older homes specifically asbestos may be found in many different materials from pipe insulation to flooring adhesive to roof shingles.