In general an attic s r value should be between r 30 and r 49.
How do i insulate my attic.
Your home s r value score will guide you toward the type of insulation you need.
Insulate and air seal any knee walls vertical walls with attic space directly behind them in your home as well.
If you ve reached your target depth but still have a few bags left over keep adding the material at an even depth throughout the space until all the bags your calculations called for are empty.
To make insulating an attic easier grab a helper and set aside two days.
With a finished attic insulation must help keep the attic areas comfortable.
Inspecting your attic insulation.
To get the target r value from the product you chose use the number of bags your calculations showed that you needed to insulate your attic never fewer.
Attic insulation is installed in the floor of the attic so you ll need to do a few things to make the process straightforward.
Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.
In particularly cold climates you might go up to r 60.
Do i have enough.
That means insulating the attic floor only not the walls and having vents in the roof.
If your insulation is just level with or below your floor.
No matter what kind of insulation you currently have in your attic one quick way to determine if you need more is to look across the span of your attic.
Whether or not there is an inner roof lining and the total thickness of the roof structure.
If your attic is often used or perhaps you plan to convert it in the future you will need to insulate the inner surfaces of the roof.
How to insulate a finished attic.
Blowing attic insulation isn t hard but it s dusty sweaty work.
One for attic prep and the second to actually blow the insulation.
The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home.
Insulating the pitched roof.
How much does attic insulation cost.
Before insulating seal any air leaks and make roof and other necessary repairs.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
If it is located in a conditioned part of the house also remember to insulate and air seal your attic access.
Start by installing temporary lighting such as clip lights and laying a few sturdy boards along the joists to create a walkway.
A finished attic should be insulated much like the rest of the house with insulation in the walls and ceiling.