Frequently Asked Questions About Spray Foam Insulation
West Texas Spray Foam has been insulating homes and commercial buildings for many years across the West Texas region. We get asked a lot of questions, so we have compiled the most common ones here with the answers you need to get started.
What is the difference between open cell and closed cell foam?
Open-cell foam has tiny cells that are not completely closed. The open cells are filled with air and this affects the way the foam feels and performs. Closed-cell foam has cells that are sealed off so air doesn’t get inside the structure at all. The major difference between the two foam options is that closed-cell foam tends to be harder or firmer while the open-cell foam is softer or less firm.
What is the R-Value of spray foam?
Open-cell spray foam has an R-value of 3.7 per inch, while closed-cell spray foam delivers an R-value of up to 6.5 per inch.
Why do I have to remove my existing insulation prior to installing spray foam?
The truth is, it’s best to have the old insulation removed before installing the new, but why? Old insulation can actually prevent spray foam insulation from properly insulating your attic. You probably already know that hot air rises, and cooler air remains in the lower levels of your home.
How long will spray foam last in a house?
With proper application, spray foam insulation will last the lifetime of your home. Even roofing applications will last upwards of 30 years, with proper long-term maintenance. Spray Foam insulation adheres extremely well to virtually all substrates and maintains its rigidity once dry.
Are there any harmful emissions?
Spray foams are safe for both you and the environment. Most spray foam products are water-blown and do not emit HFCs or HCFCs. Extensive testing in North America has shown that no VOCs are detected after 30 days following installation.
What makes spray foam better than traditional types of insulation such as fiberglass?
The composition of fiberglass insulation does not stop air from passing through it. On average, more than 30% of heat or air conditioning escapes where fiberglass insulation is installed. If poorly installed, fiberglass can also leave spaces around fixtures, allowing even more heating or cooling to escape.
Spray foam insulation fills all spaces, preventing air from escaping. It acts as an air barrier. Like cellulose insulation, spray foam insulation is significantly more efficient than fiberglass and has a higher R-value.
Does spray foam support bacterial and/or fungal growth?
No, spray foam insulation offers no food value. Therefore, it cannot support bacteria or fungal growth. The effective air-sealing characteristic prevents the movement of hot air to the cold parts of the walls, preventing condensation from taking place within the wall cavities. The elimination of condensation within the wall cavities prevents the growth of mold and mildew.
Have more questions? Give us a call today at 325-252-4701 your home to discuss your options for your spray foam insulation services. We’re here to help, so call us to learn more about our services today.