7/8/2018 Air Barrier Association of America (ABAA) is a Registered Provider with Building Enclosure The American Institute of Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Commissioning Records for AIA members. Certificates of Completion for non-AIA members are available on request. This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or Fiona Aldous construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, Principal or dealing in any material or product. Wiss Janney Elstner Associates Drivers – Performance • Occupant • Decrease energy use • Critical facilities require continuous operation • Developer • Whole building integration • Schedule • less resistance to exterior environment • Adverse to litigation • less ability to manage infiltration • Prevention of failure (had failure in past & not wanting to repeat) • greater susceptibility to problems • Designer • Complex designs and design tools • What are the drivers of failure? Practice Pushing Industry Drivers – Materials • Industry • Competitive environment • Financial benefit of getting product to market • Proven materials? occupant developer • Designer • Misunderstanding of material performance criteria • Desire to use latest “cool” materials designer • Overlap in increased • Authority performance demands • More stringent codes 1
7/8/2018 Industry Pushing Practice Drivers – Welfare & Durability • Occupants / Owners • Want healthy environment , without disruptions • Want durability and long service • Designer industry designer • Require knowledge • Challenged to stay current with multiple facets of buildings • Overlap in material options • Authority authority and compliance with Code • Lax enforcement of codes criteria Lack of Knowledge Drivers – Liability • Designer • Pushing responsibility to Contractors ( delegation of design) • Disconnect between • Developer / Owner Occupants/Owners and • Cost constraints occupant Authorities • Alternative project delivery methods • Contractor designer • Value engineering of designs • Pushing responsibility to Sub-Contractors authority • Purchasing building enclosure design from one Sub-Contractor • Sub is responsible for design, coordination, quality, schedule, installation • The rise of the specialty subcontractor, engineer of record, design assist and consultant Delegated Responsibility designer developer • Total disconnect contractor 2
7/8/2018 Cause & Effect Commissioning (Cx) • Slack building codes • Low energy costs • Budget constraints • Performance demands • Sustainability goals • Knowledge, education or training • Errors and omissions • Reduce responsibility to reduce liability • The rise of the specialist and programs to mitigate failure Project Committee, 2006 Cx History Joe Deringer, Committee Chair Don Acker Fiona Aldous US Navy David Altenhofen, Design Chair Wagdy Anis, Pre-Design Chair Dave Bailey • The systems and equipment required to transform the new hull into Bill Brodt Paul Brosnahan an operating and habitable warship are installed and tested . Brad Carpenter Tim Corbett, Occupancy/Operations Chair • The commanding officer and crew report for training of new ship. David Eakin H. Jay Enck Walter Grondzik K. Quinn Hart Manufacturing Earle Kennett Marc LaFrance Dan Lemieux • A good manufacturing practice (GMP) is a production and testing William R. Nash, Construction Chair practice that helps to ensure a quality product . Andrew Persily Nik Vigener Paul Totten • GMP guidelines are not prescriptive instructions. Paul Tseng Thomas Smith • It is the company's responsibility to determine the most effective Richard Walker Mohammed Ettouney, Liaison, ASCE and efficient quality process . Charles E. Dorgan, Liaison, NIBS/ASHRAE Guideline 1 Jim Graf/ Lindy Johnston, Liaison, IESNA MEP System Cx BECx • Quality oriented process for achieving and verifying performance 2012 - 2018 2005 - 2011 • NIBS Guideline 3 – 2012 Building Enclosure Commissioning • ASHRAE Guideline 0 – 2005: The Commissioning Process Process • The purpose of this guideline is to describe the Commissioning • ASTM E2813-12e1 (2012) Standard Practice for Building Process capable of verifying that the facility and its systems meet the Enclosure Commissioning Owner’s Project Requirements. • NIBS Guideline 3 – 2006 Exterior Enclosure Technical • ANSI/ASHRAE/IES Standard 202-2013 Published Standard: Requirements for the Commissioning Process Commissioning Process for Buildings and Systems • CSA Z320-11 Building Commissioning • ASTM E2947-2016a Standard Guide for BECx • WORKING DRAFT - ISO 21105 Building enclosure thermal performance verification and commissioning 3
7/8/2018 BECx – what it is … and is not NIBS Guideline 3 2012 - BECx “… the process by which the • Not a party responsible for design or construction design and constructed • Not a guarantee performance of building enclosure materials, • Not expensive relatively speaking (Approx. 0.1% of components, assemblies and project cost!) systems are validated to meet • The Owner’s advocate defined objectives and requirements of the project, as established by the Owner.” • Is independent (not part of the design or construction team) The Guideline 3-2012 Building Enclosure Commissioning Process available at: • Is an advisor https://www.wbdg.org/ccb/NIBS/nibs_gl3.pdf • Is engaged directly to Owner or through Cx Provider BECx Process Owner Project Requirements (OPR) … focus is on defining project expectations The OPR produces a • BECx Pre-Design Phase list documenting the requirement s … focus is on quality assurance • BECx Design Phase against which the Pre-Design, Design Basis of Design (BOD) … focus switch to quality control & verification and Construction • BECx Pre-Construction Phase phases are A narrative and analytical document • BECx Construction Phase prepared by the design A-E along with executed. design submissions to explain how the … focus switch to Owner training & maintenance Owner's Project Requirements (OPR) are • BECx Occupancy and Operation Phase met by the proposed design. Design Review BECx Plan • Technical review, refine details The Commissioning Plan Define helps the owner understand • Review interactions Expectations the requirements and risks between systems associated with each • Review specifications enclosure system in delivering • Finalize project the anticipated level of Assess Update Results commissioning plan performance and the cost and schedule impact of the • Draft / Finalize BECx Commissioning activities. specification • Document Document - NIBS Guideline 03-2012 • Back check 4
7/8/2018 Building Enclosure Test Program BECx Specification 01 91 19 1.1 WORK INCLUDED Building Function Commissioning requirements common to all Building Enclosure-Related Sections. and IAQ Location: Verification of proper and thorough installation of Design: Enclosure Assembly: Requirements: coastal/high wind Building Enclosure components. Documentation of tests, procedures, and Complex / unique Barrier; Performance zone, defined by installations. Coordination and requirements for field mock-up, forms; building drainage/rainscreen; critical facility; ASCE -7; trial installation and Performance Testing events. height combination of assemblies multi-family high- contaminated 1.2 GENERAL DESCRIPTION rise; high ground performance A. Statement of Building Enclosure Design Intent (BEDI): B. Building Enclosure Commissioning (BECx) is the process of ensuring that all building enclosure components are installed and perform collectively according to the BEDI and that the installation is adequately tested and that the specified performance is verified and documented. It serves as a tool to identify deficiencies in the building enclosure during the preconstruction and construction phases in an effort to advance the building enclosure components from mock-up Laboratory Test Program installations, through installation of the separate Field Test Program components on the structure, to a fully integrated, Field Test Program weather-tight assembly prior to occupancy, thereby reducing impact on the building end user . Pre-Construction Phase Construction Phase • Purchasing • Safety • Review of exclusions and/or • BECx Kick-off meeting substitutions • Submittal Reviews • Performance Mock-Up • Lab • Mock-Ups • Field • Development & Refinement of Installation check lists with assistance of trades • Individual Trade Pre-con Meetings • Ongoing BECx meetings • Construction Observation • Performance Tests • Documentation Performance Testing Keep testing real! No testing for the sake of testing! 5
Recommend
More recommend
