Case Studies

PolyPro's Case Studies

Oak Ridge National Laboratories Study -

In July, 2005, the Spray Polyurethane Foam Association (SPFA) hired R&D Services to conduct tests on low density, waterblown SPF and 2lb density HFC 245fa blown insulation systems in an attic thermal performance climate simulator at Oak Ridge National Laboratories (ORNL) to find out how efficiently insulation R-values matched up to more “real life” performance. Three attic insulation systems were tested in both winter and summer conditions. The test results demonstrated that both low density and medium (2lb) density SPF installed on the underside of a roof deck in an attic assembly maintained a much higher effective R-value at both low and high temperatures than did fiberglass insulation systems. The SPF systems maintained 74% and 83% respectively of reported R-value at low outside temperatures compared to 46% for the fiberglass assembly and 61% and 67% of reported R-value at high outside temperature compared to 51% for the fiberglass assembly.

National Association of Home Builders Study -

In 2005 and 2006, the National Association of Home Builders (NAHB) research center, through the labs of Architectural Testing Inc., conducted a series of residential wall panel tests to compare the most common "baseline wall" (i.e., fiberglass batt insulation between 2x4 wooden studs finished with interior drywall) against several walls containing plastic building products (including foam plastic insulating materials). This study was designed to characterize the energy consequences of wall construction and insulation material choices under simulated wind pressure conditions. To more accurately represent real world conditions, each wall system was tested in two conditions: a) in a "static state" with no additional atmospheric wind pressures at one outdoor temperature and b) with a 24-km/h (15 mph) "wind loading" at three different outdoor temperatures. All walls showed a similar performance when tested under the no-wind conditions. However, when the "wind-loading" was applied, the wall systems with plastic building products performed between 14 and 29% better, (relative to the baseline wall) increasing as the outside temperature rose. In summary, "This laboratory testing clearly demonstrated the benefits of using plastic building products (including plastic foam insulation) by showing significantly improved energy performance of residential wall systems under "real-world" wind-loaded conditions at various temperatures, compared to the baseline wall construction…"