While suspended, lay-in ceilings have long been the norm in commercial design, the open-plenum ceiling has become trendy and economical, particularly in office and retail environments. However, calculating the tradeoffs between cost and performance can be tricky.
Very little data exists comparing suspended ceilings with open ceilings on the basis of cost and performance. The most recent study came from the Ceilings & Interior Systems Construction Association (www.cisca.org) five years ago. In the study, office and retail spaces were modeled in Chicago, Charlotte, Oklahoma City, Orlando, and Phoenix to reflect the differences in energy costs, climate, and installation costs. Initial construction costs were determined using RSMeans data; annual operating costs for HVAC, lighting, and maintenance were calculated according to Building Owners and Managers Association data.
The study found initial construction costs for suspended ceilings to be 15-22% higher in offices, and 4-11% higher in retail spaces. However, total energy savings for lay-in ceilings vs. open plenums were 9-10.3% in offices and 12.7-17% for retail. A 10.5% energy reduction qualifies buildings for a LEED EA credit, and a 14% reduction is good for two points.
The study attributed the energy performance advantage of suspended ceilings to the use of a return air plenum with low static pressures and fan horsepower vs. ducted air returns with higher static pressures and fan horsepower in open-plenum systems. In addition, return air plenums more efficiently remove heat from lighting systems and reduce the AC load. Suspended ceilings also offer about 20% higher light reflectance, thereby reducing lighting costs.
For more information, see: http://www.cisca.org/files/public/LCS_brochure_rev_9-08_lo-res.pdf.
Related Stories
Building Team | Jun 20, 2022
Andres Caballero Appointed President of Uponor North America
Uponor Corporation (Uponor) has named Andres Caballero president of its Building Solutions – North America division and a member of the Executive Committee at Uponor.
Building Team | Jun 17, 2022
Data analytics in design and construction: from confusion to clarity and the data-driven future
Data helps virtual design and construction (VDC) teams predict project risks and navigate change, which is especially vital in today’s fluctuating construction environment.
Sports and Recreational Facilities | Jun 17, 2022
U. of Georgia football facility expansion provides three floors for high-performance training
A major expansion of the University of Georgia’s football training facility has been completed.
Building Team | Jun 16, 2022
Hybrid work expected to reduce office demand by 9%
Businesses are slowly but consistently transitioning to a permanent hybrid work environment, according to a senior economist at Econometric Advisors.
Building Team | Jun 16, 2022
USGBC announces more than 23 million square feet of LEED certified net zero space
Today, the U.S. Green Building Council announced nearly 100 net zero certifications earned under the LEED Zero program, representing more than 23 million square feet of space.
AEC Business Innovation | Jun 15, 2022
Cognitive health takes center stage in the AEC industry
Two prominent architecture firms are looking to build on the industry’s knowledge base on design’s impact on building occupant health and performance with new research efforts.
Market Data | Jun 15, 2022
ABC’s construction backlog rises in May; contractor confidence falters
Associated Builders and Contractors reports today that its Construction Backlog Indicator increased to nine months in May from 8.8 months in April, according to an ABC member survey conducted May 17 to June 3. The reading is up one month from May 2021.
Codes and Standards | Jun 15, 2022
Waived tariffs on solar panels expected to boost solar power
The Biden Administration recently waived tariffs on solar panels from four countries in a move advocates say will accelerate the clean energy transition and benefit national security.
Cultural Facilities | Jun 15, 2022
Gehry-designed Children’s Institute aims to foster community outreach in L.A.’s Watts neighborhood
The Children’s Institute (CII) in Los Angeles will open a 200,000-sf campus designed by Frank Gehry this summer.
Building Team | Jun 14, 2022
Thinking beyond the stadium: the future of district development
Traditional sports and entertainment venues are fading as teams and entertainment entities strive to move toward more diversified entertainment districts.
