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