flexiblefullpage

HORIZONTV FEATURING BD+C: WATCH EPISODES ON DEMAND AT HORIZONTV

Menu View Full Menu
Subscribe Here
billboard
interstitial1
catfish1
Currently Reading

Calculating the ROI of building enclosure commissioning

Calculating the ROI of building enclosure commissioning

A researcher at Lawrence Berkeley National Laboratory calls building enclosure commissioning “the single-most cost-effective strategy for reducing energy, costs, and greenhouse gas emissions in buildings today.”

By C.C. Sullivan | June 28, 2013
Continue Reading
According to Evan Mills, PhD, a researcher at Lawrence Berkeley National Laboratory, building enclosure commissioning, or BECx, should be viewed as “the single-most cost-effective strategy for reducing energy, costs, and greenhouse gas emissions in buildings today.”
 
(This article excerpted from BD+C's June 2013 AIA/CES course on cladding and exterior insulation. Take this free course at BD+C University.)
 
Mills studied the benefits of BECx, noting that commissioning only costs about $1.16/sf for new construction and $0.30/sf for existing buildings on average, with a payback period of as little as 14 months. Savings associated with using BECx from both maintenance and energy savings average about 16% for existing buildings and 13% for new construction. The main benefit is that whole-building energy savings are guaranteed, thanks to the pivotal role of the enclosure in determining efficiency performance.
 
“Further enhancing the value of commissioning, its non-energy benefits surpass those of most other energy-management practices,” including major first-cost savings through right-sizing of HVAC equipment, Mills has testified. “When accounting for these benefits, the net median commissioning project cost was reduced by 49% on average, while in many cases they exceeded the direct value of the energy savings.”
 
The National Institute of Building Sciences published its NIBS Guideline 3-2012 on enclosure commissioning last year. The U.S. Green Building Council has allowed the application of BECx to earn an innovation credit in the LEED rating system, and BECx was even considered as a prerequisite, but that proposal lost momentum, says Rob Kistler, AIA, NCARB, Committee Chair for NIBS Guideline 3 and Principal, The Facade Group.
 
It appears that LEED v4 will not explicitly encourage the detail review, onsite testing, and observation that some enclosure experts say is what makes BECx effective, notes Tristan Roberts, with BuildingGreen’s LEEDUser service. Instead, the new LEED draft language directly quotes NIBS Guideline 3, which describes the following techniques as part of proper BECx for enhanced building commissioning:
•  Devise a plan early in the project cycle that describes testing requirements, acceptance criteria, and documentation.
•  Review details in the construction documentation to check for overall performance, continuity of weather barriers and insulation, and constructability.
•  Conduct observations on the job site as required for critical milestones in enclosure installation, from field mockups to trades startup to field testing.
•  Use mockups to benchmark workmanship requirements and ensure compliance with specifications and manufacturer’s installation requirements.
 
The NIBS committee for BECx, which Altenhofen serves on, recommends including a consulting enclosure expert for the building project, especially in the construction administration phase. The expert will help ensure proposed cladding materials and systems are integrated properly into the design process, followed by visual observations of a statistical sampling of installation of work. Toward the end of the CA phase and before acceptance, a blower-door test will check whether the air infiltration levels are equal to or better than standard.
 
As noted in the summary of NIBS Guideline 3, BECx helps reduce the chances that inadequate cladding work will be discovered during the punch list phase: “The performance of the enclosure cannot be verified until the entire building is completely enclosed. At this time it is not possible to tune or dial in the performance. To access a nonperforming subsystem or assembly might be very expensive.”
 
(This article excerpted from BD+C's June 2013 AIA/CES course on cladding and exterior insulation. Take this free course at BD+C University.)

Tags

Related Stories

Top 30 Entertainment Center, Cineplex, and Theme Park Architecture Firms for 2023, Photo by Krists Luhaers on Unsplash
Giants 400 | Feb 5, 2024

Top 30 Entertainment Center, Cineplex, and Theme Park Architecture Firms for 2023

Gensler, JLL, Nelson Worldwide, AO, and Stantec top BD+C's ranking of the nation's largest entertainment center, cineplex, and theme park architecture and architecture engineering (AE) firms for 2023, as reported in the 2023 Giants 400 Report.

View looking up staircase framed by overhanging trellis and park visitors sitting at tables in the sunlight
Urban Planning | Feb 5, 2024

Lessons learned from 70 years of building cities

As Sasaki looks back on 70 years of practice, we’re also looking to the future of cities. While we can’t predict what will be, we do know the needs of cities are as diverse as their scale, climate, economy, governance, and culture.

Image by Erich Westendarp from Pixabay
Giants 400 | Feb 5, 2024

Top 90 Shopping Mall, Big Box Store, and Strip Center Architecture Firms for 2023

Gensler, Arcadis North America, Core States Group, WD Partners, and MBH Architects top BD+C's ranking of the nation's largest shopping mall, big box store, and strip center architecture and architecture engineering (AE) firms for 2023, as reported in the 2023 Giants 400 Report.

DOE selects design-build team for laboratory focused on clean energy innovation
Laboratories | Feb 5, 2024

DOE selects design-build team for laboratory focused on clean energy innovation

JE Dunn Construction and SmithGroup will construct the 127,000-sf Energy Materials and Processing at Scale (EMAPS) clean energy laboratory in Colorado to create a direct path from lab-scale innovations to pilot-scale production.

SRG Partnership Joins with CannonDesign
Architects | Feb 2, 2024

SRG Partnership joins CannonDesign to form 1,300-person design giant across 18 offices

SRG Partnership, a dynamic architecture, interiors and planning firm with studios in Portland, Oregon, and Seattle, Washington, has joined CannonDesign. This merger represents not only a fusion of businesses but a powerhouse union of two firms committed to making a profound difference through design.

Photo by Shangyou Shi on Unsplash, Top 90 Restaurant Architecture Firms for 2023
Giants 400 | Feb 1, 2024

Top 90 Restaurant Architecture Firms for 2023

Chipman Design Architecture, WD Partners, Greenberg Farrow, GPD Group, and Core States Group top BD+C's ranking of the nation's largest restaurant architecture and architecture engineering (AE) firms for 2023, as reported in the 2023 Giants 400 Report.

Water Wellness drinking fountain
Standards | Feb 1, 2024

Prioritizing water quality with the WELL Building Standard

In this edition of Building WELLness, DC WELL Accredited Professionals Hannah Arthur and Alex Kircher highlight an important item of the WELL Building Standard: water.

Embry Exterior Aerial view by Lamar Johnson Collaborative
Luxury Residential | Feb 1, 2024

Luxury 16-story condominium building opens in Chicago

The Chicago office of architecture firm Lamar Johnson Collaborative (LJC) yesterday announced the completion of Embry, a 58-unit luxury condominium building at 21 N. May St. in Chicago’s West Loop.

Green 2-seat Sofa in brick apartment
Industry Research | Jan 31, 2024

ASID identifies 11 design trends coming in 2024

The Trends Outlook Report by the American Society of Interior Designers (ASID) is the first of a three-part outlook series on interior design. This design trends report demonstrates the importance of connection and authenticity.

Photo: Yongbaek Le, courtesy Meier Partners
Museums | Jan 30, 2024

Meier Partners' South Korean museum seeks to create a harmonious relationship between art and nature

For the design of the newly completed Sorol Art Museum in Gangneung, South Korea, Meier Partners drew from Korean Confucianism to achieve a simplicity of form, material, and composition and a harmonious relationship with nature. The museum is scheduled to open on February 14. It is the firm’s first completed project since restructuring as Meier Partners.

boombox1
boombox2

Top Articles

native1

More In Category

Education Facilities

Studio Gang designs agricultural education center for the New York City Housing Authority

Earlier this month, the City of New York broke ground on the new $18.2 million Marlboro Agricultural Education Center (MAEC) at the New York City Housing Authority’s Marlboro Houses in Brooklyn. In line with the mission of its nonprofit operator, The Campaign Against Hunger, MAEC aims to strengthen food autonomy and security in underserved neighborhoods. MAEC will provide Marlboro Houses with diverse, community-oriented programs.

halfpage1

Most Popular Content

  1. 2021 Giants 400 Report
  2. Top 150 Architecture Firms for 2019
  3. 13 projects that represent the future of affordable housing
  4. Sagrada Familia completion date pushed back due to coronavirus
  5. Top 160 Architecture Firms 2021