Does Home Insulation Stop Air Leaks?

What’s the true relationship between insulation and airflow in Sacramento, CA? Does insulation prevent air leaks? This is a common misconception. Here are the facts, so you can install insulation properly and have realistic expectations about what this product will do for your property.

Insulation is an insulator, not a blocker

Yes, insulation is often added to parts of the property where air leaks occur. However, the role of the insulation is not to block this airflow. It actually does not do much at all to prevent any unwanted airflow.

Instead of blocking the leaks, the insulation… insulates. It acts like a thermos. It provides an additional layer of material to keep your property cool in the summer and warm in the winter. As your HVAC system pumps cold or hot air, the insulation prevents that air from radiating through the walls and escaping to the outdoors. It also insulates the interior from the heat of the sun and the cold winter air.

What about foam spray?

It might be tempting to think that certain types of insulation are better at preventing air leaks. The fact is, the same relationship exists between insulation and airflow in Sacramento, CA no matter what type of insulation you install. Spray foam insulation may look like it blocks leaks, as it fills in the cracks, but it is still designed to act as a thermos, not a leak blocker. The air can easily flow through the foam as with other types of insulation.

So how can I block air leaks?

If you’re looking for a solution to stop air leaks at your property, other methods will be more effective than trying to use insulation. Apply weather stripping and caulk to stop small leaks. Gypsum board is the most effective method. It blocks roughly 80 percent of air leaks. Applying siding stops another 12 percent.

Call for backup

If you need to create better weather protection for your property, the best approach is to consult with a professional. Each home and business has unique needs, and an expert can examine your setting and determine the best solutions.

This consultation will save you time and money in the long run. It will prevent you from attempting methods that are ineffective and wasting resources on these efforts. By partnering with a professional, you’ll get the right solution the first time, and can start enjoying a more comfortable interior environment right away.

For the best results, look for a professional who has experience and an established reputation in the industry. Be sure to ask for references and check their rating with the BBB.

Get more answers

For expert insight into your insulation questions, contact the team at 5 Star Performance Insulation, Inc. We have been in business for 20 years, providing high-performance insulation systems to satisfied customers in four states. Your comfort is our top priority, and we are sure you will be satisfied with what we have to offer. Reach out to us today with any questions or to get started on your next project.

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