Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Attic insulation measurements.
Insulation input length and width of area to be insulated.
Spray foam offers the best attic insulation performance available.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
Most homes are insulated in the attic and any floors located above unfinished basements or crawl spaces.
The measurements for the attic seal is taken from inside the rough frame of the attic entrance.
Click the button to calculate the amount of insulation in square feet and man hours wall and ceiling fiberglass insulation needed for this job.
The higher the r value the better the thermal performance of the insulation.
Looking across your attic if the insulation is level with or below the attic floor joists you probably need to add more insulation.
Do you need more attic insulation.
If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs.
Both can be added to uninsulated attics or layered over existing material.
Choose from two types.
Length x width x height height of stair case example.
R value is a measure of insulation s ability to resist heat traveling through it.
The r value indicates how well insulation resists heat transfer.
If you re laying the foil down on top of existing attic insulation on the attic floor then you just need to know the square footage of the attic area you re covering.
They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.
For diy attic insulation you ve got two choices.
Learn how much attic insulation you need with a few simple tools.
Insulation level are specified by r value.
Loose fill or batt the common term for blanket insulation.
Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold.
You determine this by multiplying the length x width of the space.
Closed cell and open cell aka 2 pound and pound respectively.
If the space between the framing is about 56 x 25 or within a couple of inches of these measurements a as 2 or as 4 will fit depending on the height of the stairs.
For example if you attic floor area is 30 x 50 then you re measuring 1 500 sq ft.
Boards to walk crawl on if needed measuring tape or yard stick.
Visual check of insulation levels.
Either read the r value printed on the batts of your existing insulation or use a measuring tape ruler to measure the depth of the insulation inches.