Today’s sprayfoam contractors understand the time and expense of building and installing custom enclosures around recessed, or ceiling mounted lights as part of a typical job-site preparation.
However, based on a recent research study by SPFA and the National Electrical Manufacturer’s Association (NEMA), these special enclosures could be a thing of the past.
The results of the study showed that peak temperatures were not substantially different than those measured with loose-fill insulation in direct contact. On the other hand, according to the study, NEMA members had some concerns about expanding foam entering into the lighting fixture through ventilation hopes, in addition to foam covering the electrical access panel.
Together, the organizations developed and published a new standard for lighting manufacturers (a summary is available on the NEMA website).
Based on the new standard, lighting manufacturers can either qualify existing designs or make minor changes to current products that will enable SPF to be directly applied to exterior. Additionally, SPF can not be applied to any IC-rated fixtures without written instructions from the lighting manufacturer and/or an “SPCL” designation marked on the fixture.
The results of this project offers great news for sprayfoam contractors. In the coming years, SPCL fixtures should be commonplace, eliminating the need for costly and time-consuming field construction of special enclosures around these devices.
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