What is Spray Polyurethane Foam? Spray polyurethane foam, commonly referred to as SPF is a spray-applied insulating foam plastic that is installed as a liquid and then expands many times its original size. Spray polyurethane foam can be adjusted and have many different physical properties depending on the use desired. How does applicator install the system? Specialized equipment is used to apply the spray polyurethane foam and proper technical training is important in order to get the best results. How long does SPF roof last? The oldest performaing SPF roofs in the world are over 30 years old. In Saudi Arabia, we have come across SPF roofs which are more than 15 years old. Because the physical properties of the SPF change little with age, how long the SPF roof system lasts depends primarily on the original application and long term maintenance. SPF life can always be extended by recoating SPF after 10 or 15 years. What are the benefits of SPF? SPF acts as a thermal insulation material and also as a waterproofing material SPF reduces drafts and increases comfort SPF helps maintain a comfortable, constant, temperature throughout the building, from room to room and floor to floor SPF assists in improving indoor air quality Excellent insulation efficiency of SPF can reduce heating and cooling usage dramatically HVAC equipment can be down-sized, thereby reducing construction costs SPF can be maintained, repaired or reroofed very easyily SPF helps conserve energy, reducing CO2 emissions SPF contributes LEED credits for sustainable, green construction SPF can help reduce structural damage caused by high winds SPF contains no formaldehyde or ozone depleting substances