Frequently Asked Questions
Q: How long has spray polyurethane foam (SPF) roofing been used?
A: Polyurethane foams, including SPF flexible foams for upholstery, etc., were developed in the 1950s. The Canadians were the first to introduce SPF for construction applications. SPF has been in the U.S. since the late 1960s as a roofing material. Here in the Southwest, Texas A&M University has been using an SPF system for more than 30 years. It is now used by many corporations, universities and school districts across the country.
Q: Why doesn’t every roofing company install the spray polyurethane foam (SPF) roof system?
A: It requires a great deal of training and very high tech, complex equipment. DFW Urethane has been in the SPF business for 26 years, and has a highly regarded team of experienced professionals.
Q: Can you walk on a spray polyurethane roof?
A: Yes. Commercial and industrial buildings have constant foot traffic on their roofs. The polyurethane foam used by DFW Urethane offers a minimum of 50 psi compressive strength, which supports high foot traffic.
Q: Do I have to remove all of my air conditioning units before spray polyurethane is applied?
A: If you have curb-mounted AC units, equipment can stay on the roof. You can save money by not having to remove AC equipment.
Q: Is it true that we can save up to 30% off of electric bills?
A: Absolutely. According to our customer reports, SPF roofing protects and insulates your building, and decreases the amount of energy needed for heating and air conditioning.
Q: Will this polyurethane roof actually change the temperature on the INSIDE of my building? Even if my building isn’t air conditioned?
A: Yes. Some customers have noticed as much as a 15-degree difference in temperature inside, which makes it more comfortable for employees, and ultimately increases production.
Q: Do you need to put an R-19 on your roof for insulation value to meet energy/city codes?
A: As long as we put a urethane roof over your existing roof, the R-19 specifications don’t apply. This is an important benefit of urethane roofs. With most conventional roofs you are required to completely tear off the existing, creating a lot of waste; and then you must meet the code upgrade to R-19 insulation.
Q: What is the benefit of Open Cell versus Closed Cell insulation?
A: Closed cell insulation is a rigid foam that has a higher R=value – usually double the value of open cell insulation.
Q: What is weatherization?
A: Weatherization is sealing your building against air leaks and ventilating properly to cut energy waste, improve indoor air quality, improve comfort and reduce your building’s carbon footprint.
Q: What is the weatherization process?
A: DFW Urethane uses a three-step process:
- Tests are performed to find out how much conditioned air is leaking from your building and to help pinpoint the leaks.
- The leaks are sealed using barrier sealants such as caulking, expandable foam and weather-stripping.
- In some cases, we may recommend additional insulation to further reduce air leakage and increase thermal comfort.
Q: Why do I need a professional to weatherize my building?
A: Because we are a certified Honeywell Authorized Weatherization Contractor, we have the training and equipment to locate and seal air leaks throughout your building, using proven products and processes. Furthermore, we are knowledgeable about utility or government rebates that may provide additional savings for you.
Q: Is professional weatherization expensive?
A: Every building is different, and your we will provide you with a building assessment that includes weatherization recommendations, the estimated costs and your projected savings. In all but the most extreme cases, weatherization pays for itself through energy savings.
Q: What is the payback?
A: Most air sealing projects pay for themselves in fewer than 5 years – and provide continued savings for years to come.
Q: Can I get rebates or tax credits for weatherization?
A: Several energy efficiency incentive programs are available. Visit the Database of State Incentives for Renewable Energy (DSIRE) to find programs in your area. We can also help you find available utility or government rebates or incentives.
Q: What is a Honeywell Authorized Weatherization Contractor?
A: The Honeywell Authorized Weatherization Program is your assurance that you’re working with a certified professional who has received intensive training and uses proven Honeywell products to ensure the highest quality work. To become an authorized contractor, DFW Urethane had to:
- Be certified through the Building Performance Institute, an organization behind the national standards for energy-saving residential retrofit work
- Complete Honeywell’s professional, hands-on training on the safe handling and installation of weatherization products
- Demonstrate an understanding of the whole-building approach to weatherization