Common Concerns about Spray Foam Insulation
There are some common concerns about spray foam insulation (SPF) which are important to be addressed for customers.
• Customers have been led to believe that SPF will “off gas” after the application of the SPF which is untrue. SPF when applied will react when the two chemicals used to create SPF creating an exothermic reaction causing the SPF to expand. Once the SPF has expanded (Usually 10-15 seconds) there is no “off gassing” that will occur after it has cured. If a customer was to enter a home minutes after the application of SPF they would smell an odor which is typical immediately after the application of SPF. Typically within 12 hours the odor is gone and the customer will not have any odor problems with SPF.
• Customers have been told that mice will eat SPF insulation which again is untrue. Mice and other rodents cannot digest SPF and will not eat it. Additionally, SPF is the best product to use to prevent mice and other rodents from getting into your home because SPF seals your home off to prevent mice, snakes and insects from entering.
• Customers have incorrectly been told that SPF will shrink once it has been applied. After SPF has been applied to the substrate the SPF will not shrink or expand as long as the SPF applicator ensured the SPF was being applied under the proper ratio. This is a critical step that trained, certified, and licensed SPF applicators are aware of. If an untrained SPF applicator does not test their equipment and SPF prior to the application of SPF there is a risk the SPF could shrink due to it being “ISO rich or Resin rich”. Once again, this will not happen as long as the applicator is trained and aware of how the SPF is being applied.
• Consumers have been told that applying SPF to their home or business will result in mold forming in the structure. Whether applying SPF to a new construction home or business or retrofitting an existing structure, SPF itself will not promote mold growth. It is important for customers to understand the interaction of their heating and cooling system (HVAC) and the insulation being used. With the use of SPF customers are able to downsize their HVAC system due to the superior performance of SPF. Customers may experience increased humidity in their home or business if the HVAC system is not properly calculated to account for SPF. It is important for HVAC systems in homes to clear out the humidity that builds up throughout daily activities inside the home. This also includes having properly vented exhaust vans from the kitchen and bathrooms. We routinely work hand in hand with the customers HVAC company to ensure they are aware of the use of SPF when calculating the proper size of the HVAC system. When retrofitting an existing home with SPF, we are aware that fully changing out an HVAC system is not financially possible. There are methods HVAC service providers can implement to gain better performance from the HVAC system without changing out the customers entire system.