Air Seal

The Important Role Of Air Seal


Who wants to live in a freezing house or even worst, finishing taking a shower just feeling like you need to take another one, because your home is not ventilated properly and you are having unwanted air traveling inside.

Air leakage occurs when outside air enters and conditioned air leaves your house uncontrollably through cracks and openings. It is unwise to rely on air leakage for ventilation. During cold or windy weather, too much air may enter the house. When it’s warmer and less windy, not enough air may enter, which can result in poor indoor air quality. Air leakage also contributes to moisture problems that can affect occupants’ health and the structure’s durability. An added benefit is that sealing cracks and openings reduces drafts and cold spots, improving comfort.


The purpose of air sealing a home is to reduce the air leakage as much as possible. This will provide controlled ventilation in your home.  

The Importance

A leaky house causes higher energy bills, and allows excess moisture into the home; allowing mold and mildew to develop. A lot of the leaky holes are often hidden, and this becomes a problem because you are not sure where to start treating your home. Pure Eco has experts to do a walk through in your home and find these spots in your attic, ceiling, crawlspace, and walls that are giving you high energy bills and moisture. Once we locate the holes we are able to seal them up and eliminate the problem; giving you back the control of proper ventilation inside your home.

Reducing the amount of air that leaks in and out of your home is a cost-effective way to cut heating and cooling costs, improve durability, increase comfort, and create a healthier indoor environment. Air sealing in the attic is generally a challenging project, but the benefits can be substantial. If you are doing a major home renovation project, now may be a great time to tackle this project too.

Air heating and cooling

Increasing the comfort of your home by air sealing, reduces the drafts inside. By reducing the cycle, your heating and cooling system will work much less. Having a drafty house not only is a waste of natural resources but also energy sources. If there is a draft in the room or home, you tend to use the heating and cooling system much more, and this increase the cost of your bill. When you air seal your home, you will notice the difference of the air quality as well as the energy bill.

Closing any leaky spaces, can also help prevent allergies during season changes. Pollen and any other factors that allergies are able to arise from, travels in the air and gets inside your home. When your home is properly sealed this will not be a problem for you anymore.

Mold and Mildew

Air sealing the home prevents the humidity from entering inside, which is a huge factor to preventing mold and mildew. When you have humidity inside of your home, the mold and mildew can grow and become a huge health risk for your family and pets while left untreated. According to the CDC , having exposure to damp and moldy environments may cause nasal stuffiness, throat irritation, coughing or wheezing, eye and skin irritants. If people have an allergy toward mold or mildew, this can create immune issues, chronic lung illness, and infection in the lung.

Mold and Mildew not only affects a person's health but also the health of the home. What we mean by that is mold and mildew weakens the structure of the home. If it gets so bad you may have to do some remodeling repair. You can fold mold and mildew in between the walls, tiles, open doorways, windows, air vents, heating and air conditioning systems, wallpaper, any wood, and it can be even attached to you and your pets from being outside.

To control mildew you should:

  • Fix any leaky roofs, windows, and pipe inside of your home.
  • Proper ventilation is very important.
  • Cleaning with bleach is great to get rid of and prevent mold and mildew.
  • Having control of the humidity levels.

Spaces In The House Where Air Leaks Can Potentially Happen , gives some great tips as to where you should look for air leaks:

  • Baseboards and floors.
  • Gasgets.
  • Recessed Ceiling Lights
  • Attic Floor.
  • Fireplace
  • Weather Stripping
  • Attic
  • Chimmneys
  • Pull- Down Attic Stairs

Testing Your Home For Air Leaks

Testing your home for air leaks without equipment is difficult. You either have to hire an energy efficient company such as Pure Eco, or an Energy Auditor to make you a report. Finding these small cracks or holes is very tricky, if you don’t have the proper training it's easy to miss any of these holes or cracks, and it will defeat the whole purpose to air sealing the home. You want to make sure the space is fully covered.

How Much You Can Save

After you air seal your home, your energy efforts of conserving will greatly impact your utility bill up to 30%.

An average American Home, according to the US Department of Energy waste 100% of energy with Air leaks.

  • Ceiling, Walls, and Floors- 31%
  • Doors - 11%
  • Ducts - 15%
  • Electrical Outlets - 2%
  • Fans and Vents - 4%
  • Fireplace - 14%
  • Plumbing Penetrations - 13%
  • Windows - 10%

Do you see why it is so crucial to have an air seal serviced in your home? I mean think about it all the energy you are using with your heating and cooling, is escaping through the cracks of your walls and such, and you're constantly running it, not realizing that the unit isn't the problem, rather your home is a leaky house.

Remember, that air seal alone isn't the remedy to reduce heat flow in the house, you still need proper insulation. Air seal and insulation is a complementary and a team effort, to keep your energy cost down.

Why Choose Pure Eco

Pure Eco, is a well trusted family business, that is here for you! We want to leave our customers homes with them feeling 100% satisfied and confident that we did a good job. All of our staff are fully trained in the area of expertise they are in. We make sure they can fully educate you while visiting your home to help you understand what necessary services need to be performed. Along with our stuff being knowledgeable about the services we provide and products, we make sure they have full awareness of the options you have for payment. Pure Eco offers loans to customers who are not able to come full out of pocket. GreenSky Credit , is the company we use to help you transition your house into a energy efficient home. If GreenSky isn't the way you want to go, we always remind our customers that SoCal offers incentives and rebates to residential customers. Check out Socal’s incentives and rebates page to find out more, SoCal also started a financial program for customers who want to make their home energy efficient, you may want to try and apply to see if you can qualify.


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