DunRite Exteriors News & Information

November 23rd, 2022 11:46 am     A+ | a-

Understanding the Importance of Having the Right Insulation in Your Attic

Now Through December, We're Installing FREE Attic Installation!*

DunRite Exteriors

How Insulation Works

Everyone knows their home needs insulation, but not everyone understands the science of insulation. Understanding the importance of having the right insulation in your attic and the impact that it can have on your home's energy efficiency and comfort is essential.

How Insulation Impacts Your Home

The purpose of insulation is to limit heat transfer. In your attic, that involves both preventing conditioned air in the living space from escaping to the attic and preventing unconditioned air from entering the home.

If you know how your home's insulation works, you can also understand what makes it malfunction and contribute to poor energy performance in a house. Here's what can go wrong:

  • Voids: Voids are areas of missing insulation. These can happen as a product of improper installation or be required by code. For example, an insulation void is required around a recessed "can" light that is not rated for insulation contact. Whatever the reason, insulation voids allow heat transfer by convection and radiation. Research has shown that just a 4% void in fiberglass batts insulation can result in a 50% reduction in insulation effectiveness.
  • Compression: Compression happens when fiberglass batts insulation is pushed down, which eliminates many of the tiny trapped air pockets that provide insulation value.
  • Air movement: Air passing through insulation diminishes insulation effectiveness because it deposits dirt in the air pockets of the insulation, reducing its ability to resist convective heat loss. To effectively slow heat transfer, the air pockets in insulation must be clean. This is why air sealing is essential before adding insulation.
  • Moisture: When insulation is exposed to moisture, R-value is decreased because the air pockets that are supposed to provide resistance to heat transfer are now filled with water!

Choosing the Right R-Value for Your Home

All insulation shares a common unit of measure known as R-value. The "R" stands for resistance to heat flow. A high R-value means greater resistance to heat flow and thus, greater insulating value. R-value is described both in R-value per inch and in total R-value.

The Department of Energy recommends homes have attic insulation that provides between R-38 and R-49, depending on your climate. Blown cellulose insulation from Attic Systems is the most efficient method to reach this level and improve your home's energy performance.

The Information Above Was Found On www.atticsystems.com

Purchase a Roof or Windows, get FREE Attic Insulation!

New Roofs! - Purchase your new roof NOW, put no money down, make no payments, and pay no interest in till 2024! Don't wait; take advantage of our "BIG CHILL Winter Sale" promotion and SAVE BIG.

Whole House Windows  - Being comfortable in your home has never been so affordable! Purchase Replacement Windows NOW and take advantage of 24-months same as cash financing!

FREE Attic Insulation - Purchase either a New Roof or Replacement Windows and receive FREE Attic Insulation!

Schedule a FREE in-home estimate TODAY by calling (800) 422-7483, or why not take matters into your own hands and book it yourself using our Online Booking Calendar!

*Restriction apply, call for complete details. Expires 12/31/2022


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1 (800) 422-7483

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