ENERGY
Energy Savings and Lighting Benefits from High-LR Ceilings
High light reflectance ceilings* enhance the benefits of indirect lighting by improving overall lighting uniformity, returning 90% of light back into the space, compared to 75% with standard ceilings.
a. Typical acoustical ceiling (LR 0.75) reflects just 75% of the light striking its surface
b. High LR ceilings are engineered to reflect up to 90% of the light striking their surface
The energy, cost and environmental advantages of combining high light reflectance ceilings and indirect lighting were
substantiated in a third-party, independent Brinjac Engineering
Research Study (“Energy and Environmental Effects of High
Light Reflectance Ceilings* in Offices,” 2006).
High light reflectance ceiling benefits include:
• Total building energy savings up to 11%
• 23% reduction in lighting energy at same light level (fewer
indirect lighting fixtures and lamp/ballast replacements)
• 7% savings in cooling system energy
• Increased occupant satisfaction and productivity
• Ability to secure tax credits for energy efficient design
• Ability to secure LEED credits
• More effective use of energy budgets**
*A high light reflectance ceiling – LR 0.83 or greater per ASTM E 1477-98
as referred to in ASTM E 1264-98
**Based on standards like those developed by the American Society of
Heating, Refrigeration and Air-Conditioning Engineers (ASHRAE) and the
International Energy Conservation Code (IECC) currently being adopted
across the U.S. In addition, the Energy Policy Act of 2005 (EPAct 2005)
gives tax credits for energy efficient design below ASHRAE 90.1-2001
standards to encourage owners to reduce energy use below the code
required minimum.
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