Spray polyurethane foam insulation creates a seamless, monolithic seal with the roof deck. There is no way that heat can build up between the insulation and the roof decking. Our product applied at 2" can stop temperatures up to 200 degrees Fahrenheit from transferring into the interior of the attic. Eliminating heat from entering the attic area also eliminates the need for ventilation, which would be in place to allow heat to escape.

Chemical Design Corporation has thousands of satisfied customers who have chosen this system. This is by far the most energy efficient method to insulate any structure. Stopping the heat at the point of entry just makes a lot more sense than having an attic that reaches temperatures well above 130 degrees. This also benefits those homes that have HVAC units and ductwork in the attic space. It allows the unit to work more efficiently and can prolong the life of the unit. Click here to learn more.

2006 INTERNATIONAL RESIDENTIAL CODE

BUILD ENERGY CONSERVATION INTO YOUR HOUSE OR COMMERCIAL/INDUSTRIAL SITE
Use spray polyurethane foam from Chemical Design to fill and seal all gaps ina nd around the bulding framework. This unique insulation is spray applied directly into stud cavities or other surfaces, sealing joints and cracks throughout the structure. The spray polyurethane foam expands and fills unwanted voids in the building envelope to stop air infiltration. Spray polyurethane foam quickly cures to a rigid monolithic insulation that holds tight and helps make the structure stronger. The spray polyurethane foam's performance enhances the mechanical ventilation equipment's abilitiy to provide a controlled, properly ventilated environment. The spray polyurethane foam system also seals and reduces the temperature differences between the outside and inside wall - preventing convection currents of air from looping up and down in the walls.

THE R-VALUE MYTH
"R" refers to resistance to heat flow. These measurements are taken in a laboratory environment. But heat flow resistance is only part of the formula for effective insulation. R-value doesn't measure the amount of air infiltration or moisture that penetrates through an insulated wall. In short, the measurement doesn't factor in real-world weather conditions. The only way to elimate air infiltration and moisture is to completely seal the building tight and use mechanical ventilation equipment to regulate moisture and balance indoor air pressures.
(For more on the R-value Myth, click here).

HVAC: BIGGER IS NOT ALWAYS BETTER
WITH HVAC SYSTEMS
Determining the correct size of residential heating and cooling equipment is key to achieving comfortable interior conditions - temperature and humidity - and saving on initial and operating costs. Size of cooling systems is particularly critical for optimal energy efficiency and comfort. When equipment is oversized, initial costs are higher, efficiency is reduced, energy costs increase, and comfort may be compromised. One Florida study showed a typical 9 percent increase in annual space cooling electricity usage for units that were oversized by 50 percent or more.

Correctly sized equipment is especially impor­tant in humid climates, where short-cycling of air conditioning equipment can lead to poor humidity control. Similar to an automobile in stop-and-go traffic, the overall efficiency of an air conditioner, furnace, or heat pump is reduced by excessive cycling. More starts and stops accelerate wear and tear on the equipment, which can lead to premature failure.

Oversized systems also use more fan power for the blower and often exhibit more duct leakage due to higher operating duct pressures. Finally, oversized air conditioners and heat pumps greatly aggravate the summer utility peak demand on hot days. In the Flordia study cited above, a 10 percent higher summer peak electrical demand was correlated to oversized untis. To view the entire article, please click here.
Source: Office of Building Technology; Right-sized heating and cooling equipment.