Importance of Attic Insulation in Homes


appliances and home energy-home informationProper attic insulation will save you money and ensure a comfortable house

Almost everyone is aware that heat moves, or spreads, from warmer areas to cooler places and also ascends upward. This heat transfer can occur when air moves from indoors to the outside or vice versa. Another way in which heat transfer occurs is through the walls, roof, and windows and exterior doors. In many homes the attic has many air leaks because of ventilation vents.

Moreover, while the U.S. Department of Energy recommends that attics have Attic insulation of R value between 40 and 60, many attics are insulated with material that only have a R value of under 20. This leads to a lot of heat transfer out of the attic, leading to loss of heat or ingress of heat into your home. This directly translates into larger energy bills. When considering improved home insulation, you need to first get your attic inspected for air leaks and insufficient insulation.

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Importance of Air Sealing

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Whenever you consider upgrading home attic insulation, you need to first ensure that there are no air leaks. An expert home insulation contractor will use the blower door test to locate air leaks in the space you want to insulate. Once the air leaks are located these have to be sealed. Air sealing  might require the removal of existing insulation. This process is best to complete this before proceeding with the attic insulation upgrade. Air sealing will ensure that conditioned air does not leak out of the house, thereby ensuring that your hard-earned money too stays with you. By air sealing the attic, you will be sealing a leak in your wallet as well. And in this economy, this is absolutely vital.

Types of Home Insulation Products

There are many different types of home insulation products such as spray foam insulation, rigid foam insulation, injection foam, fiberglass bates, blown fiberglass, blown cellulose, and denim batts. Each of these has its own advantages and disadvantages. No single product is the best for all situations. An expert home insulation contractor will be able to assess the insulation needs of your home and recommend appropriate insulation after an energy audit. By following the recommendation of a trusted home insulation contractor, you will be able to obtain the best solution for your home.

For instance, spray foam insulation also provides air sealing. So, your contractor might recommend its use for air sealing the attic of your home. Some other areas of your home, such as the wall cavities, might not require air sealing. The contractor might recommend rigid foam insulation as a less expensive alternative. A competent home insulation contractor will reuse existing insulation material as well as long as it is not wet, moldy, or compressed. This too can reduce the total cost of upgrading your home’s insulation.

Correct Installation

Whether you use spray foam, rigid foam insulation, blown cellulose, or fiberglass batt, it is important to ensure that the installation is done correctly. Improper installation can leave voids, or compressed material, which significantly reduces the insulation abilities. By ensuring that a trained technician installs the insulation, you can be sure that you are obtaining the required levels of insulation and this project is completed with precision. home information-attic insulation-home improvement ideas

As heat transfers into your home this summer it will strain your air conditioner, taking its toll on your energy bills. This article will give you tips to saving on your energy bills.

Dr. Energy Saver N.E. Illinois provides air sealing in Northbrook, IL. Visit them online to schedule a home energy audit in Northbrook, Buffalo Grove, Glenview, Mundelein, Lake Zurich, Barrington, and other surrounding areas.


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Watch this video about the importance of attic insulation and air sealing:

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Importance of Attic Insulation in Homes — 4 Comments

  1. that is a bad bad spray job. proper spray pccrtiaes for closed cell has a 80% overlap. and is flat and smooth. you can;t see all the passes like in yours. he is also spray too hot to achieve a better yield of the product. And to a trained eye you ca see that he has 0 gel time of the foam. it is already in its cream stage before it hits the substrate! what this means is that you have elongated cell structure. lower r-value. As for starting on fire it can. there is a exo thermic reaction.

    • The picture you are refering to is not of a spary foam job. It is just from spray foam sealing of air prenetration spots before insting batt insulation.

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