InsulationGuy wants to make sure that all of our readers know how to protect themselves from hiring unreliable and poor quality companies to work on their home or business. We understand that sometimes people can be all too trustworthy when it comes to hiring companies to do their home improvement projects. I strongly believes that a little research can save you tremendous amount of wasted time, money, and headaches. There are a few common sense questions you should ask yourself and any contractor you are thinking of hiring.

 The initial cost of using spray foam insulation runs about three times more than traditional materials. But keep in mind that the increase in R-value and air sealing will lower your utility bills by 30 percent - paying back the cost difference in energy savings in less than five years. 

A new closed-cell polyurethane foam insulation uses HFC-134a, a nonchlorine blowing agent, which is not athmospheric ozone-depleting. The new product offers a reported aged R-value of R-6.5 per inch thickness. Because of the new blowing agent, it is roughly three times as expensive as traditional polyurethane insulations. Although it does not affect the ozone layer, a recent study showed that high concentrations of HFC-134a in the environment may damage wetlands and plant growth.