How To Measure The Attic For Insulation

Inspecting your attic insulation.

How to measure the attic for insulation. The thickness of the attic insulation depends on the value of heat transfer coefficient u. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. If you can see your rim joists in the attic it s time to add some insulation. Each bag lists the required depths for a range of r values and the number of bags needed to cover 1 000 square feet at those depths.

First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. For loose fill read labels. Once you decide which install method is best for your home it s time to measure the. Multiply the wall s length by the wall s height and don t forget to write down the spacing of the studs so you can then determine what type of the insulation will be purchased.

One easy way to tell if you need more insulation is by looking across the span of your attic. To determine the amount of insulation needed start by measuring the height and length of each of your room walls. Your insulation levels should be well above the rim joists. Click the button to calculate the amount of insulation in square feet and man hours wall and ceiling fiberglass insulation needed for this job.

How to measure your attic choose an install method first. 4 read the measurement where. For batts or rolls calculate the number based on the width and length of the product you re using. For a more accurate measurement of proper insulation levels we recommend using a yard stick or thick measuring tape to determine if you have the proper amount of attic insulation.

Determining the attic footprint. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Purios e which should be covered with attic is at least 21 cm. Extra areas to consider.

This calculator is to be used as an estimating tool only. Measure your attic s square footage. Extend a tape measure into a joist bay the insulated space between two joists. You will need this as insulation normally comes in precut lengths or standard rolls.

Its value is currently 0 18 w m 2 k therefore the thickness of the open cell pur foam layer e g. Input length and width of area to be insulated. Typically the square footage of the home plus 400 ft for a 2 car garage and add any.