LEED 2012
COMMISSIONING
Presented by H. Jay Enck
“Some Buildings Not Living Up to Green Label”
CHANGE
• New Construction projects registered after June
26, 2007 are required to meet a mandatory
minimum of two points (14% New/7% Existing) in
order to achieve certification.
• LEED 2009 begins to assess project performance
compliance with LEED Green Building Rating
System requirements.
– Project owners authorize GBCI to access and
review their project’s Energy and Water Usage
Data for minimum 5 years after occupancy.
ISSUE
• Why buildings are not living up to promise
–
–
–
–
Energy model and water usage predictions
Incorrect installation/programming
Operator error
No feedback loop to owner and operational team
OVERVIEW
• USGBC Structure
• The affect of USGBC on Commissioning
• Changes to LEED 2012
– Structure
– New requirements
• Additional Prerequisites
• Changes to Fundamental and Enhanced Commissioning
USGBC VISION 2009-2013
“Buildings and communities will regenerate and
sustain the health and vitality of all life within a
generation.”
USGBC MISSION 2009-2013
“To transform the way buildings and communities
are designed, built and operated, enabling an
environmentally and socially responsible, healthy,
and prosperous environment that improves the
quality of life.”
LEADERSHIP IN ENERGY AND
ENVIRONMENTAL DESIGN
• Internationally recognized green building
certification system
– Created a paradigm market shift to sustainable
principles
– Increased awareness of building commissioning
– Made minimum commissioning requirements a
prerequisite for LEED Certification
LEED 2012 PUBLIC REVIEWS
• January 19th 2011 - First Public Review
– 5000 comments received
•
•
•
•
•
USGBC Staff consolidates comments
Send comments to credit guardians for consideration
Guardians revise credit requirements as appropriate
LEED 2012 revision finalized
Recommendations go through technical committee to
steering committee
• Steering committee tweaks language and finalizes rating
system for executive committee to approve
• July 2011 – Second Public Review
CHANGE IN LEED 2012
• LEED 2012 currently includes an annual report
card for all LEED-certified buildings
– Statement of their energy consumption
– Those that meet energy-saving marks will get an
updated plaque for that year
– Those that don’t won’t get their plaques revoked
– People will start to understand that a 2002 plaque
would mean something a lot different from a 2010
plaque
LEED 2012
• Existing Categories
–
–
–
–
Sustainable Sites
Water Efficiency
Energy and Atmosphere
Materials and
Resources
– Indoor Environmental
Quality
– Innovation in Design
– Regional Priorities
• New Categories
– Integrated Process
– Location and
Transportation
– Performance
LEED 2012
• Performance Credits
– Prerequisites
• Water Metering and Reporting
• Building-Level Energy Metering
• Fundamental Commissioning and Verification
– Credits
•
•
•
•
Enhanced Commissioning
Water Metering and Reporting
Advanced Energy Metering
Reconciled Projected and Actual Energy Performance
FUNDAMENTAL COMMISSIONING
• Intent
– “To verify that the project’s energy, water, and
indoor air quality related systems and the exterior
envelope assemblies and systems are designed,
installed, and calibrated to perform according to
the owner’s project requirements, basis of design,
and construction documents”
FUNDAMENTAL COMMISSIONING
• Requirements
– Apply only to systems included within the project’s
scope of work
– Commissioning process must be incorporated into
pre-design, design, construction, and first year of
occupancy of the project
– The process must verify that the project, its
components, assemblies and systems comply with
the documented owner’s project requirements
FUNDAMENTAL COMMISSIONING
• Requirements
– The Owner or Owner’s representative must
complete the following:
• Document and/or approve the OPR, which meets the
requirements of Section 5.2.2.4 of ASHRAE Guideline 02005
• Alternatively, the Owner may designate a commissioning
authority (CxA) to develop and update the OPR
GUIDELINE 0 - SECTION 5.2.2
• 5.2.2.1 The Owner’s Project Requirements
form the basis from which all design,
construction, acceptance, and operational
decisions are made.
GUIDELINE 0 - SECTION 5.2.2
• Each item of the Owner’s Project
Requirements shall have defined
performance and acceptance criteria.
• Those that can be benchmarked should have
the benchmark defined in specific terms and
the means of measurement defined.
GUIDELINE 0 - SECTION 5.2.2
• 5.2.2.4 The Owner’s Project Requirements should
include the following:
– Project schedule and budget.
– Commissioning Process scope and budget.
– Project documentation requirements, including format
for submittals, training materials, reports, and the
Systems Manual. Consideration should be given to use
of electronic format documents and records where
appropriate.
– Owner directives.
GUIDELINE 0 - SECTION 5.2.2
• 5.2.2.4 The Owner’s Project Requirements should
include the following:
–
–
–
–
–
–
Restrictions and limitations.
User requirements.
Occupancy requirements and schedules.
Training requirements for Owner’s personnel.
Warranty requirements.
Benchmarking requirements.
GUIDELINE 0 - SECTION 5.2.2
• 5.2.2.4 The Owner’s Project Requirements should
include the following:
– Operation and maintenance criteria for the facility that
reflect the Owner’s expectations and capabilities and
the realities of the facility type.
– Equipment and system maintainability expectations,
including limitations of operating and maintenance
personnel.
– Quality requirements for materials and construction.
– Allowable tolerance in facility system operations.
GUIDELINE 0 - SECTION 5.2.2
• 5.2.2.4 The Owner’s Project Requirements should
include the following:
–
–
–
–
–
Energy efficiency goals.
Environmental and sustainability goals.
Community requirements.
Adaptability for future facility changes and expansion.
Systems integration requirements, especially across
disciplines.
GUIDELINE 0 - SECTION 5.2.2
• 5.2.2.4 The Owner’s Project Requirements should
include the following:
–
–
–
–
–
–
–
Health, hygiene, and indoor environment requirements.
Acoustical requirements.
Vibration requirements.
Seismic requirements.
Accessibility requirements.
Security requirements.
Communication requirements
FUNDAMENTAL COMMISSIONING
• Requirements
– The Owner or Owner’s representative must
complete the following:
• The CxA must be designated and involved prior to or
immediately after completion of conceptual design
• The CxA must be designated and involved prior to or
immediately after completion of design development.
ACHIEVING LEED
• Project design is established by end of SD:
– Form, orientation, floor to floor heights, system types
Schematic Design
100%
Cost of
Action/Solution
Level of
Influence
0.0%
Design
Construction
Increasing Cost
Operation
Decreasing Influence
Source: Adapted from Quality in the Constructed Project, American Society of Civil Engineers, 1988.
CONTROLLING LEED DESIGN COSTS
• By end of design development most opportunities to
change are gone.
Schematic Design
Design Development
100%
Cost of
Action/Solution
Level of
Influence
0.0%
Design
Construction
Increasing Cost
Operation
Decreasing Influence
Source: Adapted from Quality in the Constructed Project, American Society of Civil Engineers, 1988.
ASHRAE GUIDELINE 0 - 2005
• Pre-Design Activities
–
–
–
–
Owner’s Project Requirements
Identifying Commissioning Scope & Budget
Design Phase Commissioning Plan
Acceptance of Pre-Design Cx Process
Activities
– Review Lessons Learned from Previous
Projects
COMMISSIONING OUT OF SEQUENCE
• Potentially
– More cost to the owner
• Change orders for participation in Cx process
• Redesign costs
– More work for the project team for same
compensation
– Lost opportunities
• Integration of sustainable principles
• Implementation of integrated design
WHO CAN COMMISSIONING
• Requirements
– Must have documented commissioning authority
experience in implementing the commissioning
process with at least two (2) building projects.
• Documented CxA experience must include pre-design, or
early design phase involvement through at least 10 months
of occupancy.
• Data Centers Requirements
– Be a commissioning provider with documented
commissioning authority specialization in the
commissioning of critical components;
WHO CAN COMMISSIONING
• Requirements
– Must be independent of the project design and
construction management activities
– For projects smaller than 20,000 gross square feet,
the CxA may be a qualified employee of the design
or construction team (i.e., not an independent
consultant)
– For projects 20,000 gross square feet or larger, the
CxA must be independent consultant who is not part
of the project’s design team, employed by the
project’s construction management firm or sister
company.
– The CxA may be a qualified employee of the owner
DESIGN TEAM DELIVERABLES
• Basis of Design
– Develop the Basis of Design in accordance with the
OPR and the requirements of Section 6.2.2 in
ASHRAE Guideline 0-2005;
DESIGN TEAM DELIVERABLES
• 6.2.2 Basis of Design Documentation
– 6.2.2.1 The Basis of Design, developed and updated
throughout the Design Phase, is required with each
design submission and should include the following:
• System and assembly options
• System and assembly selection reasoning.
• Facility, system, and assembly performance assumptions:
– Assumptions for calculations/sizing.
– Analytical procedures and tools.
– Environmental conditions.
– Limiting conditions.
– Reference make and model.
– Operational assumptions.
DESIGN TEAM DELIVERABLES
• 6.2.2 Basis of Design Documentation
– 6.2.2.1 The Basis of Design should include the
following:
• Narrative system and assembly descriptions.
• Codes, standards, guidelines, regulations, and other
references.
• Owner guidelines and directives.
• Specific descriptions of systems and assemblies.
• Consultant, engineering, and architectural guidelines for
design developed by the design team or others
DESIGN TEAM PARTICIPATION
• Participate in commissioning meetings
• Work with the CxA to incorporate
commissioning requirements into construction
documents
COMMISSIONING AUTHORITY MINIMUM
REQUIREMENTS
• Review the design development and OPR at the
design development stage
• Provide support in developing the
commissioning requirements for construction
documents based on Guideline 0 Sections
– 5 “pre-design”
– 6 “Design”
– 7 “Construction”
• Develop and implement the commissioning
plan
COMMISSIONING AUTHORITY MINIMUM
REQUIREMENTS
• With assistance from the project team, develop
and incorporate commissioning requirements
into construction documents prior to bid or
when formal construction is scheduled for nonbid projects
• Review the 95% or final contract design
drawings and specifications prior to permitting
or the bid submittal of all commissioned
systems and assemblies
COMMISSIONING AUTHORITY MINIMUM
REQUIREMENTS
• Review construction documents to verify:
– Maintenance access
– Relevant sensor locations
– The proper documentation of devices and control
sequences
– That envelope thermal and moisture control details
are shown
– The inclusion of commissioning tests, meetings and
methods
– Inclusion of clearly stated training requirements
COMMISSIONING AUTHORITY MINIMUM
REQUIREMENTS
• Report results, findings and recommendations
directly to the owner
• Form and lead the commissioning process team
• Conduct regularly scheduled commissioning
process team meetings
• Maintain an issues/benefit log for the
commissioning process
COMMISSIONING AUTHORITY MINIMUM
REQUIREMENTS
• Develop and distribute commissioning related
construction checklists for required pieces of
equipment, systems and assemblies
• Develop and distribute acceptance testing
procedures for required pieces of equipment,
systems and assemblies
• Verify construction checklists against contractor
installation, prior to acceptance testing of the
systems to be commissioned;
COMMISSIONING AUTHORITY MINIMUM
REQUIREMENTS
• Witness and document acceptance tests.
– For each acceptance test, complete test
form and include a signatures for the parties
who has performed and witnessed the test.
• Seasonally dependent system operations that
cannot be fully commissioned in accordance
with the commissioning plan at time of
occupancy must be commissioned at the earliest
time after occupancy, when the operation of
systems is allowed to be fully demonstrated as
determined by CxA
COMMISSIONING AUTHORITY MINIMUM
REQUIREMENTS
• Review and include the following tasks in
the final commissioning process report:
– A water vapor transmission analysis of
all exterior envelope types used in the
building
– Confirm building envelope materials
and their installation are in compliance
with the contract documents
ASHRAE 2009 FUNDAMENTALS
• Building Envelope
– Chapter 25 “Heat, Air, and Moisture Control in
Building Assemblies – Fundamentals”
– Chapter 26 “Heat, Air, and Moisture Control in
Building Assemblies – Material Properties”
– Chapter 27 “Heat, Air, and Moisture Control in
Building Assemblies – Examples”
ASHRAE 2009 FUNDAMENTALS
• Chapter 25 “Heat, Air, and Moisture Control in
Building Assemblies – Fundamentals”
– Hydrothermal loads acting on building
envelope
ASHRAE 2009 FUNDAMENTALS
• Chapter 25 “Heat, Air,
and Moisture Control in
Building Assemblies –
Fundamentals”
– Hydrothermal loads
acting on building
envelope
ASHRAE 2009 Handbook of Fundamentals
ASHRAE 2009 FUNDAMENTALS
• Chapter 25 “Heat, Air,
and Moisture Control in
Building Assemblies –
Fundamentals”
– Hydrothermal loads
acting on building
envelope
ASHRAE 2009 Handbook of Fundamentals
ASHRAE 2009 FUNDAMENTALS
• Chapter 25 “Heat, Air, and Moisture Control in
Building Assemblies – Fundamentals”
– Hydrothermal loads acting on building envelope
•
•
•
•
•
•
•
Ambient Thermal Humidity
Solar Radiation
Exterior Condensation
Wind-Driven Rain
Construction Moisture
Ground and Surface Water
Air Pressure Differentials
ASHRAE 2009 FUNDAMENTALS
• Chapter 25 “Heat, Air, and Moisture Control in
Building Assemblies – Fundamentals”
– Heat transfer
•
•
•
•
•
•
•
•
Steady-State Thermal Response
Thermal Resistance of a Flat Assembly
Combined Convective and Radiative Surface Transfer
Heat Flow Across an Air Space
Total Thermal Resistance of a Flat Building Assembly
Thermal Transmittance of a Flat Building Assembly
Thermal Bridging and Whole-Assembly Thermal Transmittance
Transient Thermal Response
ASHRAE 2009 FUNDAMENTALS
• Chapter 25 “Heat, Air, and Moisture Control in
Building Assemblies – Fundamentals”
– Airflow
• Water Vapor Flow by Air Movement
• Heat Flux with Airflow
– Moisture Transfer
• Moisture Storage in Building Materials
• Moisture Flow Mechanisms
– Water Vapor Flow by Diffusion
– Water Flow by Capillary Suction
– Liquid Flow at Low Moisture Content
– Transient Moisture Flow
ASHRAE 2009 FUNDAMENTALS
• Chapter 25 “Heat, Air, and Moisture Control in
Building Assemblies – Fundamentals”
– Moisture Transfer
ASHRAE 2009 Handbook of Fundamentals
ASHRAE 2009 FUNDAMENTALS
• Chapter 25 “Heat, Air, and Moisture Control in
Building Assemblies – Fundamentals”
– Combined Heat, Air, And Moisture Transfer
• Consequences of combined heat, air, and moisture transfer can
be detrimental to a building’s thermal performance, occupant
comfort, and indoor air quality.
• High moisture levels in building materials may also have a
negative effect on the thermal performance of the building
envelope.
• It is advisable to analyze the combined heat, air, and moisture
transfer through building assemblies.
1988-CARIBBEAN BEACH RESORT
WALT DISNEY WORLD
• 2112 rooms
• $5.5 M Problems
Before Opening Day
(HVAC & Envelope)
1991-OMNI HOTEL CHARLESTON, S.C.
• HVAC/Envelope
Problems Occurred
Immediately After
Opening
• $10+ M Fix
1993-MARTIN COUNTY COURTHOUSE
STUART, FL
• Building problems
led to evacuation
• $15+ M in repairs
(original cost =
$11M)
1997-MARRIOTT HOTEL KANSAS CITY
• Problems began
during first
summer’s operation
• $2 M Repairs
1995-HALE KOA HOTEL
HONOLULU HAWAII
• Moisture & mildew
problems started
immediately after
opening
• $6.5 M HVAC fix
COMMON THEMES
• In every case the buildings were T&Bwithout finding (or correcting) problems
• In every case the problems could have
been predicted in the design stage.
• In every case the changes needed
to prevent these failures would not
have cost more money or added to
the schedule
• In every case building
commissioning would
have prevented these
problems.
Wall System Dynamics
72 F
20% RH
DP~29 F
1.6 0.7 2.5 2.5
70
60
50
40
30
20
10
0
•
Air film
Clapboards
34.3
3/4” Polystyrene
1/2” Plywood
37.5
3 1/2” Air
space
5
1/2” GWB
-
Air film
Paint
Perms
•
0 F
Temperature
Dew Point
Primary Vapor
Retarder
Location of the primary
vapor retarder
Location of the first
plane of condensation
VAPOR TRANSMISSION PROBLEM
An existing building is being remodeled for use in the Atlanta,
GA area. The exterior wall structure is as follows (from outside
to inside):
–
–
–
–
–
–
–
4” Brick Masonry
2” Air Gap
1/2” Dens Glass
6” Metal Studs
6” CMU
3.5” Metal Studs w/ R-13 Batt Insulation w/ foil facing
5/8” Gypsum Wall Board
Using vapor transmission analysis, determine if condensation
in this wall structure would be a concern in the summer
months.
COMMON MATERIALS
Material
R-Value
Permeance
4” Brick
0.44
0.8
6” CMU
1.34
2.4
6” Metal Stud
1.125
20
3.5” Metal Stud
0.69
20
3.5” Metal Stud w/ Batt
6.00
20
5/8” Dens Glass
0.56
23
Gypsum Wall Board
0.56
50
2” Air Gap
1
60
3.5” Batt Insulation
13
Negligible
Negligible
0.02
Exterior Air Film
0.17
Negligible
Interior Air Film
0.68
Negligible
FSK foil facing
SIMPLIFIED HYGROTHERMAL
DESIGN CALCULATIONS
AND ANALYSES
SURFACE HUMIDITY AND CONDENSATION
SAMPLE VAPOR TRANSMISSION GRAPH
Summer Conditions
VAPOR TRANSMISSION WORKSHEET
VAPOR TRANSMISSION WORKSHEET
VAPOR TRANSMISSION GRAPH
Summer Conditions
WALL VAPOR TRANSMISSION PROFILES
Insid e A ir Fi lm
1/2” Gyp sum Wall Bo ard
1 ” Polystyre ne Insu latio n
1.5” Air Spa ce
C eme ntitiou s Wate r Pro of Coa ti ng
8” C MU
Outsid e Air Fi lm
100
100
Surface Temperature
90
Finished Wood
Strips Over
Cloth Finish
80
90
Dew Po int
80
70
70
60
60
50
50
E111999005ATL\ sc 108. FH8
WALL VAPOR TRANSMISSION PROFILES
Inside Air Film
Vinyl
1/2” Gypsum Wall Board
1” Polystyrene Insulation
Cementitious Water Proof Coating
8” CMU
100
Outside Air Film
100
Surface Temperature
90
80
90
Condensation
in Wall
80
Dew Point
70
70
60
60
50
50
E 111999005A TL\sc 107.FH8
COMMISSIONING AUTHORITY MINIMUM
REQUIREMENTS
• Prepare the final commissioning process report
• Provide a Systems Manual as defined by
ASHRAE Guideline 0-2005, Section 6.2.6.4.A
ASHRAE GUIDELINE 0-2005
• Section 6.2.6.4.A
– The following should be included in the Systems
Manual (see Annex O for an example format):
• Index of Systems Manual with notation as to
content storage location if not in actual
manual.
• Executive Summary.
• Owner’s Project Requirements.
• Basis of Design documents.
• Construction Record Documents, specifications,
and approved submittals.
ASHRAE GUIDELINE 0-2005
• Section 6.2.6.4.A
– The following should be included in the Systems
Manual (see Annex O for an example format):
• A list of recommended operational record-keeping
procedures, including sample forms, logs, or other
means, and a rationale for each.
• Ongoing optimization guidance.
• Operations and maintenance manuals (includes
operating procedures for all normal, abnormal, and
emergency modes of operation; maintenance
procedures; parts and recommended spare parts list;
troubleshooting guide; and systems schematics (one-line
diagrams).
• Training materials.
• Commissioning Process Report
CX TEAM MUST DEMONSTRATE
• That the ventilation equipment and system meet
the design minimum indoor air quality for
mechanically ventilated spaces and naturally
ventilated spaces; Verification must be performed
by:
– Review of contractor submittals for ventilation
equipment during construction
– Review of testing and balance reports
– Independent airflow measurements of at least
20% of outdoor air sources
– Does a LEED Score Card meet the OPR
requirement?
CX TEAM MUST DEMONSTRATE
• That water using fixtures and appliances meet the
design minimum water usage requirements;
Verification must be performed by:
– Review of contractor submittals for applicable
water using fixtures and equipment
– Evaluation of water usage or re-usage systems
included (e.g. stormwater, refrigeration equipment
condensate, rainwater) or gray water usage.
– Independent measurements of at least 10% of
water using fixtures or equipment?
CX TEAM MUST DEMONSTRATE
• If there are substantial variations or failure to
meet the minimum ventilation or water usage
design requirements, corrective action must be
taken by the owner or contractor until the
requirements achieve verification testing
CONSTRUCTION TEAM RESPONSIBILITY
• The construction team is responsible for the
following:
– Verifying the installation and performance of the
systems to be commissioned, including completion
of the construction checklist
DATA CENTER
CONSTRUCTION TEAM RESPONSIBILITY
• The construction team is responsible for the
following:
– Verifying the installation and performance of the
systems to be commissioned and validated at 25%,
50%, 75% and 100% load points; to ensure energy
efficiency performance meets the design criteria
– Verify the measurement calculation of Power Use
Effectiveness (PUE) at 25%, 50%, 75% and 100%
design load conditions carried out for EA
Prerequisite 1.
DATA CENTER
CONSTRUCTION TEAM RESPONSIBILITY
• The construction team is responsible for the
following:
– Validate critical equipment's are tested in normal
and failure modes.
– At the completion of commissioning and
validation, the CxA must provide the owner with
written comments where systems operating
conditions were found to be different than
designed or documented in the manuals.
DATA CENTER
CONSTRUCTION TEAM RESPONSIBILITY
• The construction team is responsible for the
following:
– Developing a construction quality implementation
plan per the contract documents;
– Including subcontractors in commissioning process
team meetings;
– Forming the required teams for appropriate tests
included in the specifications;
– Verifying the completion of the construction
checklist.
COMMISSIONED SYSTEMS
• Commissioning process activities must be
completed for the following energy-related
and exterior envelope systems and assemblies
(Core and shell projects: only include systems
within their scope of work), at a minimum:
– Same as Fundamental Commissioning
COMMISSIONED SYSTEMS DATA CENTER
• Commissioning process activities must be
completed at a minimum:
– Building Systems
– Computer room systems (in all buildings)
– Electrical power transformation and distribution
systems
– Cooling units for the computer and data
processing rooms
ENHANCED COMMISSIONING
• Implement, or have a contract in place to
implement in addition to the requirements of
PF Prerequisite: Fundamental Commissioning
and Verification.
• The CxA must have The Owner or Owner’s
Representative must select an individual to
serve as the commissioning authority (CxA)
who meets the following requirements:
ENHANCED COMMISSIONING CxA
• The CxA must have the following
requirements:
– Be a commissioning provider (same as
fundamental commissioning) plus - at least
one must have a minimum of 40% of the
commissioning scope of the current project.
– Be independent of the work of project
design and construction management
activities.
ENHANCED COMMISSIONING CxA
• The CxA must have the following
requirements:
– Be an independent consultant who is not an
employee of the project’s design or
construction management firm or sister
company, and has the required experience.
– The CxA may be contracted through the
designer or construction manager not holding
construction contracts related to the project.
It is recommended that the CxA be contracted
directly with the owner.
ENHANCED COMMISSIONING CxA
• The CxA must have the following requirements:
– The CxA may be a qualified employee of the owner.
– The CxA must report results, findings and
recommendations directly to the owner.
ENHANCED CX DESIGN TEAM
RESPONSIBILITIES
• The design team must provide an analysis of
building moisture and water vapor transmission
into and through the building envelope sections
and at interface of different sections per the
requirements of ASHRAE Standard 160-2009 or
equivalent computer simulation by a recognized
industrial program. This analysis must be reviewed
by the CxA or the commissioning team and include
this information in the final commissioning process
report.
ENHANCED COMMISSIONING
CxA RESPONSIBILITIES
• The CxA must fulfill the requirements of PF
Prerequisite “Fundamental Commissioning”
• Develop an enhanced commissioning process and
implementation plan starting at pre-design
• Develop design phase checklists for commissioning
activities and for the design team submittals of
partial design and the delivered construction
documents
DESIGN CHECKLISTS
Plumbing
ENHANCED COMMISSIONING
CxA RESPONSIBILITIES
• For project less than 20,000 sq. feet the CxA must
conduct
– one (1) commissioning verification review of the
OPR, basis of design, and design documents
prior to mid-construction documents
development and back-check the review
comments in all subsequent design submissions,
including an additional full verification review at
95% completion of the design documents and
basis of design.
ENHANCED COMMISSIONING
CxA RESPONSIBILITIES
• For project over 20,000 sq. feet the CxA must conduct
– Three (3) verification reviews of the basis of design
– One (1) verification review of design documents
prior to the start of design development
– One (1) verification review of design documents
prior to mid-construction documents
– One (1) final verification review of 100% complete
design documents verifying achievement of OPR
and adjudication of previous review comments.
ENHANCED COMMISSIONING
CxA RESPONSIBILITIES
• Track all commissioning process issues and
activities
• Estimate the economic value or descriptive value to
the owner for all commissioning process issues
• Review contractor submittals for commissioned
systems and assemblies for compliance with the
OPR and basis of design.
– This review must be concurrent with the review of the
architect or engineer of record and the review report
submitted to both the design team and the owner.
ENHANCED COMMISSIONING
CxA RESPONSIBILITIES
• Verify that requirements for training operating
personnel and building occupants have been
completed.
• Review the operation of the building with
operations and maintenance (O&M) staff and
occupants within 10 months after substantial
completion. Have a plan for resolving outstanding
commissioning-related issues must be included.
ENHANCED COMMISSIONING
CxA RESPONSIBILITIES
• Develop, direct and document acceptance testing
of the building envelope for moisture intrusion.
– For extensive existing building renovations,
where the existing building envelope is to
remain and no previous evidence of moisture
intrusion is observed, acceptance testing of
existing building envelope is not required.
ENHANCED COMMISSIONING
CxA RESPONSIBILITIES
• Develop, in coordination with building operating
staff, a lifetime on-going or monitoring based
commissioning
– In accordance with ASHRAE Guideline 0-2005
• Section 8.2.4.1 On-going training
• Section 8.2.5.1 Cx Reports on activates taken
• Section 8.2.6.1 Revise Current Facility Requirements (CFR) and
Systems Manual as changes occur
• Section 8.2.7 Provide periodic verification of system, assembly,
• and component condition and operation
• Section 8.2.8 Maintain CFR, BOD, System Manual, Training
ENHANCED COMMISSIONING
CxA RESPONSIBILITIES
• And:
– Sustain the energy, water, and envelope quality
and performance levels achieved at the end of
the 10-months occupancy period
– Enhance the energy, water, and envelope quality
and performance for the life of the building,
– Provide requirements for re-commissioning
ENHANCED COMMISSIONING
CxA RESPONSIBILITIES
• And:
– Annually evaluates the current facility
requirements and a means to address changing
activities or use of the facility
– Adopts and implements policy and procedures
for application of the commissioning process
over the life of the building including minor and
major modifications to building interior, exterior,
mechanical, electrical, life safety and process
related systems
ADDITIONAL SYSTEMS TO BE
COMMISSIONED
• Subterranean water proofing and penetrations
• Exterior wall assemblies and fenestration
systems
• Above grade penetration
• Stormwater control and removal systems
• Associated pumping systems, if applicable
ADDITIONAL SYSTEMS TO BE
COMMISSIONED
• Subterranean water proofing and penetrations
• Exterior wall assemblies and fenestration
systems
• Above grade penetration
• Stormwater control and removal systems
• Associated pumping systems, if applicable
Quality Results
Integrated System Approach
ELECTRICAL

Lighting & Power

Energy
Consumption

Fire & Life Safety
STRUCTURAL

Wind & Seismic
Loads

Flexibility

Floor Load
PLUMBING SYSTEM

Storm Water

Water & Sewer

Water Efficiency




HVAC SYSTEM
Proper Selection &
Sizing
Sufficient Run Time
Adequate
Pressurization
& Ventilation
BUILDING ENVELOPE

Weather Barriers

Air Barriers

Vapor Retarders

Fenestration
QUESTIONS
H. Jay Enck
HJEnck@CxGBS.com
WWW.CxGBS.com