When it comes to insulating homes, spray foam is a premium product that delivers excellent results. However, homeowners should know the pros and cons of this product before deciding whether it is right for their home.

Pros of Spray Foam Insulation

This type of spray foam insulation combines an air barrier with an insulator, making it ideal for sealing cracks and gaps in the walls. It creates a tight seal and blocks moisture from entering the interior of the house, so it is an excellent option for basements, crawl spaces, and other areas of the house where humidity can be high. It also offers a high R-value per inch, meaning it has a greater potential to reduce energy costs than fiberglass batts.

It is also easier to install than other types of insulation. It is sprayed on the surface, allowing for excellent coverage and expanding to fill small nooks and crannies. It is possible to buy DIY kits, but it’s recommended that homeowners hire a professional installer for the process to ensure proper expansion and to avoid health issues associated with the spraying and curing of the foam.

The ingredients used in spray foam, particularly isocyanates, can cause eye irritation and respiratory problems if inhaled or skin-exposed. These chemicals can also be dangerous if ingested. This risk is lessened if the home is properly ventilated during and after installation.

The spraying of the foam creates large amounts of volatile organic compounds (VOCs). These VOCs can off-gas for a time after the application, and it is recommended that homeowners vacate their home during this process.

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