Spray foam whose chief constituent is polyurethane foam is used to fill cracks and crevices in your home to prevent entry of air, water vapor and outside heat and cold depending on the season. It is a lucrative roofing agent as well. As is well known, it stiffens and expands within seconds of application to about 10 times its original volume on being sprayed and also assumes varying shapes and densities as per requirement. Since polyurethane is very light weight it adds no additional burden to the weight of your building and guards its structural integrity, becoming a weather proof roofing agent that adheres to your roof surface like second skin.
Spray foam roofing is known to last about 40 years or even a lifetime once applied properly and can save up to 30% of your energy bills. However to ensure longevity, the spray foam needs to be regularly cleaned and properly maintained. The roofing needs to be inspected since large-sized wind blown debris or accidentally dropped heavy machines and other equipment can cause minor or major dents and cracks to develop, thereby damaging your roof. Once the polyurethane is installed on your roof to the desired thickness, it is advisable to place layers of elastomeric coating on top so as to protect your foam from the glare of the sun and ultraviolent rays in particular. The coating needs to reapplied every 10-15 years depending on the kind of inclement weather phenomena your house is subjected to. After everything has been completed successfully, it is very safe to walk on.
How Does Spray Foam Roofing Compare To Other Products?
Spray foam roofing is an ideal alternative to conventional means of roof insulation as it prevents the heat from being convected inside during the hot Tucson summers, since spray foam stands as a barrier, pre-empting the flow of air inside or outside. In comparison to other forms of membranous roofing systems, spray foam costs about 10-15% less although its cost in comparison to the use of fiberglass and cellulose or blown in insulation is much higher. Another downside to using spray foam is the absolute requirement that trained professionals handle the installation process with the help of proper equipment. If the installation is botched up somehow, then spray foam can give off a fishy smell or even cause health hazards.
The idea of using spray foam as not just an insulating material but also as a roofing agent is readily catching up and spray foam roofing has become very popular in Tucson Arizona