Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.
Best way to insulate attic in texas.
Plan to pull up the flooring and layer new insulation on top of the old.
I d blow insulation on the attic floor after air sealing of course.
This old house general contractor tom silva and host kevin o connor demonstrate the proper way to insulate an attic.
Which type of insulation is best for.
Keep in mind that you still want to have air venting under the roof especially with asphalt shingle roofs whose life can be shortened by excessive heat.
Moving the attic insulation and air barrier to the underside of the roof deck allows the attic to be part of the insulated spaces.
The most common type of insulation batts and blankets are great for diy projects.
In this case the area behind the knee wall will be uncomfortably hot or cold.
The big disadvantage with spray foam is cost.
The two types of attic insulation available for diy are loose fill insulation and batts insulation.
It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass.
Insulating a finished attic there are two basic ways to insulate a finished attic.
See below for a shopping list and tools.
This type of insulation.
What type of insulation is best for your attic.
Blanket insulation is available as batts or rolls and is the easiest diy insulation material.
You can achieve better thermal performance in your attic by adding an additional layer of insulation.
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.
It s available in fiberglass mineral wool plastic fibers and natural fibers.
Further attic insulation can be done with attic tents which insulate the attic drop down stairs and slice your energy bill by about 145 annually.
They usually come packaged in rolls and.
You can use products like radiant barrier on the underside of the roof spray foam or even good old fashioned batts of rock wool denim or fiberglass.
If you don t have hvac and ducts in the attic spray foam on the roofline isn t really necessary.