Spray Foam Insulation compared to Prodex Total Insulation.
Spray Insulation: A chemical insulation agent, stored in canister and sprayed onto walls, holes and cracks with a special application hose to provide a thermal barrier.
Spray foam insulation won't prevent radiant heat transfer (the primary source of heat-flow in and out of your home or building. Without a radiant barrier, when your roof gets hot (as is summer) it radiates solar-generated heat down into the attic insulation. Spray insulation primarily reduces heat transfer by trapping warm air. It has a high radiant heat transfer rate and is a very good conductor of this absorbed and retained heat. As surfaces radiate infrared rays in all directions, the heat trapped in spray insulation during the day will radiate down through the ceiling into the air-conditioned living space at night even if the night cools down. This will have to run the air-conditioning system even at night wasting energy. Using Prodex Total Insulation will prevent this problem. Prodex will block 97% of the radiant heat from reaching the insulation on the attic floor and the air-conditioned living space below. It will also prevent the heat in your home from escaping out.
Prodex Total insulation is paramount in creating a more comfortable and energy efficient house, keeping you cooler in summer and warmer in the winter. Prodex Total insulation is an absolute must in warmer climates. In colder climates, Prodex adds a R-value of 16 that is not affected by humidity, bridging or pinching. As stated, it provides a vapor barrier, radiant heat barrier and R-value. Prodex Total insulation reduces radiant heat transfer by 97%. Installing Prodex in the roof means that the heat from the sun will be reflected back out of your roof instead of crossing the airspace to be absorbed by the insulation on the attic floor and then radiated down into your house below.
Other disadvantages of Spray foam insulation
- With the exception of cementitous foams, spray foam insulation can release toxic fumes when it burns.
- More expensive than Prodex.
- According to the U.S Environmental Protection Agency, there is insufficient data to accurately assess the potential for exposures to the toxic and environmentally harmful isocyanides which constitute 50% of the material.
- Depending on usage, building codes and environment, most foams require protection with a thermal barrier such as drywall on the interior of the house.
- Can shrink slightly while curing if not applied on a substrate heated to manufacture's recommended temperature.
- Although CFC's are no longer used, many use HCFCs or HFCs as blowing agents. Both are potent greenhouse gases, and HCFCs have some ozone depletion potential.
- Most, such as Polyurethane and Isocyanine insulation, contain hazardous chemicals such as benzene and toluene. These are a potential hazard and environmental concern during ray material production, transport, manufacture and installation
- Many spray foam insulations are made from petrochemicals and may be a concern for those seeking to reduce the use of fossil fuels and oil.
- R-value will diminish slightly with age.
- Most spray foams require protection from sunlight and solvents.
Difficult to retrofit an existing building structure because of the chemicals and processes involved.
Prodex Total Insulation: Member of U.S. Green Building Council - Made with 100% recyclable virgin raw materials.
January 27, 2012.