How to Insulate an Attic

How to Insulate an Attic with Vacum

Even if your attic has been air-sealed, checking your attic insulation levels is important to make sure that you that the attic has been insulated properly. How to insulate an attic is something you can learn and do it yourself. Also, it is very important to be done because it can improve the comfort and energy efficiency in your home.

So, how do you know that you have enough insulation in your attic, you can determine by looking across the span of your attic. If it is just level with or below the floor joists, it means that you should add more insulation. If the floor joists can’t be seen because the insulation is well above them, the insulation is enough and it can be cost effective. You have to make sure that the insulation can be distributed evenly with no low spots. If you notice, sometime you may find that the insulation is enough in the middle of the attic and very little along the eaves. So, how to insulate an attic should include fixing the very little insulation. You don’t need to add more insulation if your joists have been enough covered. It means that the insulation has been distributed evenly. If you don’t have enough insulation in your attic, then how much you should add? Keep in mind that the level of insulation is specified by R-value, a measure of insulation’s ability to resist heat flow. The higher the R-value, the better the thermal performance of the insulation. The recommended level is R-38 or about 10 to 14 inches depending on the insulation type. You don’t have to use the same type of insulation that currently exists in your attic, but you can use another type of insulation if you want.

So, you can check the insulation in your attic and find out how to insulate an attic so that you can add more attics to the areas where there is not enough.

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