These are just a few frequently asked questions that are commonly asked. 


What is spray foam?

  Sprayed Polyurethane Foam is a mixture of two chemical compounds. When these two compounds meet while being sprayed onto a surface, they begin a chemical reaction that creates the foam. The liquid will rapidly expand to create 100 times its volume in foam, and will fill every nook in the wall. This expansion is what seals the wall and roof from air and moisture leaks.


Why will adding spray foam reduce the HVAC unit size I need?

  In most homes, the HVAC unit is located in an unconditioned attic. The elements are always working against it. When it’s hot outside and you want to cool your home, the A/C is working hard to produce conditioned air while the unit sits in your 120-140 degree attic. When we insulated an attic, we will spray the foam directly onto the underside of the roof itself. This makes your attic into a semi-conditioned space, reducing the temperature from 130 degrees down to 80-90 degrees. The air conditioner can now function more efficiently. Of course the same is true in the winter.


How safe is spray foam for my Family?

  Very! While the foam is “curing out”, it produces a gas similar to heavily concentrated paint fumes in it’s toxicity. However, the foam is fully cured within 5 minutes, and the gas dissipates easily with proper ventilation. After the foam is “cured”, there are no lingering smells to worry about, and you wouldn’t know it was in your walls except for the energy savings you see every month!


Is spray foam flammable?

  Sprayed Polyurethane foam has been approved for use in commercial and residential buildings for many years and has been assigned a value of 0.19 by ASTM International. Spray foam will burn when subjected to a constant flame, though is does not do so readily. As with any insulation, spray foam requires a 15-minute thermal barrier when applied in the walls of a home. Dry wall or wood paneling are the most common fire barriers used.


More technical data from our chemical provider can be found here:

LaPolla MSDS

ICC Report Lapolla's Closed Cell Spray Foam

ICC Report on Lapolla's Open Cell Spray Foam



If you have more questions, or want more details about the spray foam insulation process please don't hesitate to contact us.


Brazos Valley Spray Foam

PO Box 9817

College Station, TX 77842

(979) 587-1606