august 21-23, 2018 • cleveland, ohio · §decision culture: resistance to new products, risk...

A U G U S T 2 1 - 2 3 , 2 0 1 8 • C L E V E L A N D , O H I O

Better Buildings Workshop: Going Deep on Building Enclosure Commissioning

Friday, August 24, 20188:30-12:00 pm

Going Deep on Building Enclosure Commissioning

Moderator§ Melissa Voss Lapsa, Oak Ridge National Lab (ORNL)Speakers§ Elaine Sadowski, Community College of Allegheny County§ Emily Hopps, Simpson Gumpertz & Heger Inc.§ Fiona Aldous, Wiss Janney Elstner Associates§ Simon Pallin, ORNL

Workshop Support§ Caroline Hazard, CHH Consulting

A Half-day Workshop with the Better Buildings Envelope Technology Research Team

Today’s Agenda

§ Welcome, Review of Objectives§ One Property Manager’s Need for Building Enclosure Commissioning:

Water Damage, Uncomfortable Rooms, Unproductive Students§ Elaine Sadowski, CCAC

§ Building Enclosure Commissioning 101: When, What, How?§ Emily Hopps, SGH

Short Break§ Addressing Gaps in BECx Delivery

§ Fiona Aldous, WJE§ Group Exercise: The BECx Design Game

§ Caroline Hazard, CHH Consulting§ What’s Next: Do we need a Building Enclosure Performance Metric?

§ Simon Pallin, ORNL

4

Our Objectives

ØWhat is Building Enclosure Commissioning (BECx)? ØWhat is its’ potential impact on energy efficiency,

performance, and durability of buildings?ØWhat does the market for BECx look like… the market

penetration barriers, specifications, test procedures, best practices, etc.

ØHow to get started; designing a request for quote (RFQ)

Ø Learn about/ provide feedback on ORNL’s research on a building enclosure performance metric

5

Welcome and Introductions

6

What are you hoping to gain from today’s discussion?

What type of organization do you represent?

Name your biggest myth

regarding BECx

What’s your biggest

challenge with your buildings?

Building Envelope: 5.81 Quads

The commercial building envelope is the primary determinant of the amount of energy required to heat, cool,

and ventilate a building

Barriers Identified for Envelope Technologies

§ Cost: uncertainties, high first costs, ROI hurdles

§ Supply issues: product fragility, availability, volume

§ Installation issues: workforce training, complex systems, quality control

§ Decision culture: resistance to new products, risk averse, code minimum culture

§ Information gap: real world case studies, data on long-term performance, communicating effectively

Building Envelope Tech Team Support

Building Envelope Technology Research Team

Connecting Better Buildings partners with advanced building envelope technology solutions

Melissa Lapsa, M.B.A.

Building Envelope Technical Team Lead

Mahabir Bhandari, Ph.D.

Building Envelope Tech Team Support

Simon Pallin, Ph.D.

Building Envelope Technical Lead

Caroline Hazard, M.S.

üTechnology verification studiesüSpecification documentsüCase studies and fact sheetsüCalculators and analytic tools

A Unique and Diverse Team

§ Demonstration of high performance envelope technologies and solutions

§ Comprised of Better Buildings Partners and representatives from the design community, including A&E firms

BTO Emerging

Tech Other BBA Tech

Teams

Envelope Tech Team

ORNL

BTOCBI/HIT

BB Challenge

Industry Experts

Sister Labs

BB Alliance

GSA/ GPG

Trade Assoc.

Rating Orgs.

Join the Team!

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• Adams 12

• Allegheny County Community College

• Arlington Initiative to Rethink Energy

(AIRE)

• Brevard County School Board ok

• Clark Atlanta University ok

• Cook County Bureau of Asset Mgmt

• Emory University

• exp US Services, Inc.

• Green Dinosaur Inc.

• HOK

• Hersha Hospitality Mgmt

• Instituto Superior de Engenharia do

Porto

• Legacy Health

• MA Dept of Energy Resources

• More

• Newmark Grubb Knight Frank

• Parkway Schools

• REI Co-op

• SABEY Data Centers

• Schmidt

• SIM2

• Smart Building Strategies LLC

• TN Office of Energy Programs

• Tishman Speyer

• Turner Construction Company

• US Army Corps of Engineers

• z2zero

Members(includes: Building Owners/Mgrs, Property Managers, A&E, Construction/ Installers)

http://www.adams12.org/

https://www.ccac.edu/

https://environment.arlingtonva.us/energy/

http://www.edline.net/pages/Brevard_County_Schools

http://www.cau.edu/

https://www.cookcountyil.gov/agency/bureau-asset-management-4

http://www.emory.edu/home/index.html

http://www.exp.com/en/home

http://www.greendinosaur.org/

http://www.hok.com/

http://www.hhmhospitality.com/

http://www.isep.ipp.pt/

http://www.lhs.org/

http://www.mass.gov/eea/grants-and-tech-assistance/guidance-technical-assistance/agencies-and-divisions/doer/

http://www.ngkf.com/

https://www.parkwayschools.net/

https://www.rei.com/

http://sabey.com/

https://sim2inc.com/

http://www.smartbuildingstrategies.com/

http://www.tn.gov/environment/section/energy

http://www.tishmanspeyer.com/

http://www.turnerconstruction.com/

http://www.usace.army.mil/

Join the Team!

12

• Air Barrier Assoc of America• American Institute of Architects• AppleBlossom Energy, Inc.• Argonne Nat’l Lab• Association for Energy Affordability• BA ConsulT• BROAD U.S.A. Inc.• Building Commissioning Assoc• Building Envelope Materials (BEM)• Covestro LLC• Dow• Dunsky Energy Consulting• EIFS Industry Members Association• Guardian Glass

• Humann Building Solutions• ICF• KUPU• NanoPore• National Fenestration Rating Council• Northwest Energy Efficiency Alliance• NRG Insulated Block• Owens Corning• QuadLock• Renovate by Berkowitz• Rmax Operating, LLC• Sustainability Consultants LLC• UNIFRAX• USG Corporation

Friends(Includes: Researchers, Academics, Trade Associations, Energy Service

Providers, Manufacturers, Subject Matter Experts)

http://www.airbarrier.org/

https://www.aia.org/

http://www.airbarrier.org/

http://www.anl.gov/

http://aea.us.org/

http://www.b-consult.org/

http://broadusa.com/

http://www.bcxa.org/

http://www.covestro.com/

http://www.dow.com/

http://www.eima.com/

https://www.guardian.com/en/index.html

http://humannbuildingsolutions.com/

https://www.icf.com/

http://www.kupuhawaii.org/sustainability/

http://www.nanopore.com/

http://www.nfrc.org/

http://neea.org/initiatives/commercial/commercial-window-attachments

https://www.owenscorning.com/

http://www.quadlock.com/

http://www.rbbwindow.com/

https://www.rmax.com/

http://www.unifrax.com/

https://www.usg.com/content/usgcom/en.html

What does the Envelope Team do?

• Recruit Team members among BBA partners and representatives from the design community

• Collaborate to advancing investment in envelope technologies with team discussions, webinars, and participation in market studies

Stakeholder Engagement

Build Awareness

Document and Validate

Results

Technical Resources

13

• Prime the market by strengthening building owners/manager’s understanding of envelope technologies

• Conduct envelope technology demonstrations • Provide guidance and tech assistance for envelope projects

• Prepare site M&V plans for technology demonstrations• Document results and produce case studies and/or guidance for

use in training, codes and/or standards

• Online resources: Windows, Walls, Roofs• Specifications, guidance, case studies, fact sheets, etc.

addressing market barriers and assist advancement of envelope technologies

Current R&D Efforts

§ Building Enclosure Commissioning § Benefits and Costs Study§ Exploration of new enclosure

performance metric

§ Examination of Airtightness Requirements§ Landscape Study§ Sampling of air leakage rates

14

Why conduct Building Enclosure Commissioning?

§ To improve the design process§ To reduce building energy loads (typically for

office, multi-family)§ To address human health and safety needs

(typically for labs or hospitals with ventilation and pressurization requirements)

§ To prevent moisture from compromising building

§ To maintain thermal comfort§ To maintain air quality§ To improve overall quality of building§ To comply with building codes

Credit: Anica Landreneau, HOK, ETRT presentation 1/31/18

Elaine SadowskiCommunity College of Allegheny County

One Property Manager’s Need for Building Enclosure Commissioning Water Damage, Uncomfortable Rooms, Unproductive Students&

Who is CCAC?$

Mission Statement:

▪ The Community College of Allegheny County prepares individuals tosucceed in a complex global society by providing affordable access tohigh quality career and transfer education delivered in a diverse,caring, and innovative learning environment.

Annual Enrollment (2017):

▪ 26,782 credit; 16,370 noncredit

▪ 43,152 total unduplicated headcount

▪ The college has served one-third of Allegheny County PA residents18 years and older.

ECS 2018 Better Buildings Summit - ETRT Workshop: Going Deep on Building Enclosure 8/30/18$ 18

Commissioning

CCAC’s Physical Facilities:%

▪ Approximately 1.5 million square feet of buildings.

▪ Current energy costs about $3.5MM/year.

▪ Four campuses and five centers throughout Allegheny and Washington Counties.

▪ President signed on to the Better Buildings Challenge in April 2016.

▪ The entire college signed on to the Pittsburgh 2030 District (even those campuses and centers that are not actually located in the areas covered by the District).

ECS 2018 Better Buildings Summit - ETRT Workshop: Going Deep on Building Enclosure 8/30/18- 19

Commissioning

Welcome to “Building X”!)

ECS 2018 Better Buildings Summit - ETRT Workshop: Going Deep on Building Enclosure 8/30/18 20

Commissioning

Welcome to “Building X”

▪ State-of- the- art 5-story, 67,683 square foot science facility*

▪ Houses Biotechnology, Biology, Microbiology, Anatomy and Physiology, Chemistry, Organic Chemistry, Physics, Geology, Astronomy, and Physical Science classrooms, offices, and laboratories, including an astronomical observatory.

▪ Construction started in 2011 and the building opened in early 2013.

▪ It was hoped that the building would achieve at least a LEED Silver rating.

ECS 2018 Better Buildings Summit - ETRT Workshop: Going Deep on Building Enclosure 8/30/18) 21

Commissioning

State-of-the-art 5-story, 67,683 square foot science facility

Up to date#


Commissioning

Construction started in 2011 and the building opened in early 2013.

Energy Efficient'


Commissioning

It was hoped that the building would achieve at least a LEED Silver rating.

Environmentally sustainable-


Commissioning

Contains classrooms, offices, and laboratories.

Classroom/


Commissioning

Houses Biotechnology, Biology, Microbiology, Anatomy and Physiology, Chemistry, Organic Chemistry, Physics, Geology, Astronomy, and Physical Science

Biotech Lab(


Commissioning

Oh No! What happened? ▪ Frost and condensation on the interiors of windows

▪ Cold air coming out of electrical outlets

▪ Freezing of a radiant panel heater and a subsequent flood over the winter break

▪ High energy costs and use

ECS 2018 Better Buildings Summit - ETRT Workshop: Going Deep on Building Enclosure 8/30/18) 27

Commissioning

Moisture Problems)

Leakage.


Commissioning

Cold air%

Frost and condensation on&interior surface of window&


Commissioning

Water Damage&

Water Leakage&


Commissioning

The Cause$

▪ Inspection and testing revealed that no air/vapor barrier had been installed on the exterior wallboard in the soffit area and the adjacent gable wall.

▪ Insulation board within the soffit had not been secured to the wall*board and joints between insulation boards had not been taped.*

▪ Plans and specs called for air/vapor barriers and properly installed*insulation in these areas.*

8/30/18 31ECS 2018 Better Buildings Summit - ETRT Workshop: Going Deep on Building Enclosure Commissioning

Joint between roof rafter and wallboard&


Commissioning

No air/vapor barrier, and gap between wall board and roof deck.


Commissioning

Roof rafter penetrating wall (interior view). Note void.


Commissioning

Enclosure commissioning would have prevented these problems!

Why didn’t we do it?


Commissioning

Why didn’t we do it?$

▪ Under the version of LEED in effect at the time of construction, building enclosure commissioning was not required.

▪ People working on the building did not seem aware that there was such a thing as building enclosure commissioning.

▪ The start of construction was delayed for years, and the&plans and specs were never really updated completely.&


Commissioning

Exacerbating Circumstances

▪ The architect went bankrupt.

▪ Construction was behind schedule and Facilities was instructed to get the building opened.

▪ The Construction Manager and the Commissioning Agent were discharged before the job was completed to cut costs.

8/30/18ECS 2018 Better Buildings Summit - ETRT Workshop: Going Deep on Building Enclosure Commissioning

37


38

Extensive repairs were needed.

The causes were mainly organizational, not technical.

How do we keep this from happening again?


39

To be Continued …


40

Discussion

41

§ What enclosure system performance issues are you seeing?

§ Do you have a similar story to share?

Emily HoppsSimpson Gumpertz & Heger (SGH)

WHAT, WHEN, AND HOW?Building Enclosure Commissioning 101

Emily R. Hopps, P.E.Associate Principal24 August 2018

44

Presentation Outline

• Commissioning Background

• Commissioning Guides and Standards

• Building Enclosure Commissioning Process

45





46

BuildingCommissioning

ElectricalLife Safety

Mec

hani

cal

Building Enclosure

Security

Plum

bing

What is Commissioning (Cx)?

• A quality-focused process for enhancing the delivery of a project. The process focuses upon verifying and documentingthat the facility and all of its systems and assemblies are planned, designed, installed, tested, operated, and maintained to meet the Owner’s Project Requirements. (ASHRAE Guideline 0-2005)

47

What is Building Enclosure Cx (BECx)?

• Building Enclosure Commissioning is a process that begins with the establishment of the Owner’s Project Requirements and endeavors to ensure that the exterior enclosure and those elements intended to provide environmental separation within a building or structure meet or exceed the expectations of the Owner as defined in the OPR. (ASTM E2813)

VerifiesEnclosure

PerformanceOwner’s Project Requirements

Building Operation

48

Why include BECx?

• BECx = Better QA = Better PerformancePE

RFOR

MAN

CE

PROJECT COMPLEXITY

Project without BECx

Project with BECx

Better Performance

OPR

49

Consultant vs. BECx Provider (BECxP)

Enclosure Commissioner Enclosure Consultant• Independent third party • Typically retained by designer• Involved throughout design

and construction• May not be involved past

design or may not be involved until later in project

50





51

The Start of Cx

ASHRAE Guideline 1-1989:HVAC&R Technical

Requirements for the Commissioning Process

52

The Development of Cx

ASHRAE Standard 202-2008: The Commissioning Process for Buildings and

Systems

NIBS Guideline 2-14:Technical Commissioning

Volumes

NIBS Guideline 3-2012:Building Enclosure

Commissioning Process BECx



ASHRAE Guideline 0-2005:The Commissioning Process

53

Types of Cx

Mechanical Systems

Building Enclosures vs.

54

The Development of BECx

ASTM E2813-2012: Standard Practice for

Building Enclosure Commissioning

ASHRAE Standard 202-2008: The Commissioning Process for Buildings and

Systems

NIBS Guideline 2-14:Technical Commissioning

Volumes

NIBS Guideline 3-2012:Building Enclosure

Commissioning Process BECx



ASHRAE Guideline 0-2005:The Commissioning Process

ASTM E2947-2016: Standard Guide for Building Enclosure

Commissioning

55

The Industry NowASHRAE Guideline 0-2005:The Commissioning Process

ASHRAE Guideline 1-1989:HVAC&R Technical Requirements for

the Commissioning Process

NIBS Guideline 2-14:Technical Commissioning Volumes

NIBS Guideline 3-2012:Building Enclosure Commissioning

Process BECxASTM E2813-2012: Standard Practice for Building Enclosure

Commissioning

ASHRAE Standard 202-2008: The Commissioning Process for Buildings

and Systems

ASTM E2947-2016: Standard Guide for Building Enclosure

Commissioning

56





57

The BECx Process

Pre-Design

Schematic Design

Design Development

Construction Documents

Pre-Construction

Construction

Operation & Maintenance

VALU

E OF

BEC

x

PROJECT SCHEDULE

Most effective time for BECxP to become involved.

Latest BECxP to be engaged for ASTM E2813 Enhanced Commissioning

Latest BECxP to be engaged for ASTM E2813 Fundamental Commissioning

Time at which many projects start to engage BECxP

58

The BECx Process

Pre-Design Design Pre-Construction Construction Operation &

Maintenance

Building Enclosure Commissioning Process

59

Pre-Design

Owner’s Project Requirements (OPR)

Define Goals for Energy, Environment, Durability,

Sustainability, etc.

Establish Enclosure Performance Criteria

Document Interior/Exterior Conditions, Desired Service

Life, Construction Type

Pre-Design Design Pre-Construction Construction Operations & Maintenance

60

Pre-Design

Quality

CostTime

OPR


61

Pre-Design

Owner’s Project

Requirements (OPR)

Define Goals for Energy,

Environment, Durability,

Sustainability, etc.

Establish Enclosure

Performance Criteria

Document Interior/Exterior

Conditions, Desired Service

Life, Construction Type

BECx Plan

Roles and Responsibilities

Commissioning Activities

Expectations for

Communication

Pre-Design Design Pre-Construction ConstructionOperations &

Maintenance

62

Design

Basis of Design (BOD) Review

Verify that the BOD aligns with the OPR

Design Reviews

Review Drawings and Specifications:

SD, DD, CD

Review Water, Air, Thermal, and Vapor

Control

Performance Assessment and

Testing Requirements

Incorporate BECx Requirements into

CDs:BECx Specification

Pre-Construction Laboratory Testing, Mock-Up and Field

Testing


63

Design

OPR

BODDesign

Update BECx Plan

Update BECx Plan

Update BECx Plan


64

Pre-Construction

Pre-Construction Bid Support

Confirm that RFI / Bids / Addenda Comply with the

Established OPR

Pre-Construction Meeting

Review and Clarify Required Performance Testing

Quality Control / Quality Assurance Tasks

Review Building Enclosure Schedule


65

Construction

Reviews

Secondary Reviewer for

Building Enclosure Submittals

RFI, ASI, CDs, Change Order, Substitution

Request

Field Observations

Verify Compliance with: CDs,

Submittals, Product Instructions,

Industry Standards

Functional Performance Verification

Verify Performance of the Systems and

Interfaces

Review Testing Plans

Witness Performance

Testing


66

Sub-Contractor

General Contractor

Designer of Record

Owner

Construction

BECx

Approval


67

Occupancy and Operations

Occupancy and Operations

10-month Post-Occupancy Observation

Final BECx Report

Owner Training


68

Questions?

Emily R. Hopps, P.E.Associate [email protected]

Discussion

69

§ a. Are they using a BECxProcess? Share details. What’s biggest challenge?

§ b. How many or who is using either or a BCxA Or enclosure consultant?

Short Break

Fiona AldousWiss Janney Elstner Associates

Addressing Gaps in Delivering BECxERT Workshop:

Going Deep on Building Enclosure CommissioningCleveland, Ohio - August 24, 2018

1Presented by Fiona Aldous

2

Owner Education• What should i expect?• How is it procured? • RFQ vs. RFP Required by

Code?• IGCC

LEED Ambiguity• Fundamental vs. Enhanced

BECxCertifications

BECxStandards &Guidelines• ABCDef@..?

BECx Provider Qualifications• Who does this?

NIBS Guideline 32012“… the process by which the design and constructed performance of building enclosure materials, components, assemblies and systems are validated to meet defined objectives and requirements of the project, as established by the Owner.”

The Guideline 3-2012 Building Enclosure Commissioning Process available at: FREE … get it while it lasts!https://www.wbdg.org/ccb/NIBS/nibs_gl3.pdf

https://www.wbdg.org/ccb/NIBS/nibs_gl3.pdf

Guideline 3 – Scope OverviewPre- Design Phase -BECx Kick-Off Meeting-BECxP Budget / Scope-BECx Team Selection-Define Team Cx Roles and Responsibilities-Develop / Assist in Owner’s Project Requirements (OPR) document-Develop BECx Design Phase Plan included in Total project Cx plan-BoD review-Design checklists

Design Phase -Construction Document (drawings & specs) -Design Review and Report-Project Team Meetings-BECx Specification-Update OPR, BOD, BECxReviews and Plan Documentation-Review of BECx Scope and budget

Construction Phase -Shop Drawing and Submittal Review-Development of Checklists-Pre-Construction BECxMeeting-Building Enclosure Trade Coordination/Pre-Construction Meetings-Periodic On-Site “Construction Milestone” Observation-Performance Testing-BECx Construction Meetings-Close Out Report

Occupancy and Operation Phase

-Finalize BE part of Total Cx Report; Cx process Documentation, including Copies of Reports, Photos, Sketches, and Performance Tests-Building Enclosure Operation & Maintenance Manual-On-site training of Owner personnel-Review Enclosure Prior to Warranty Expiration

The design review has the greatest opportunity to bring value on return for $

ASTM E2813-12e1 (2012) Standard Practice for Building Enclosure Commissioning … pending modifications

available for: $52.00 (was $51 in 2016,$50 in 2015, $49 in 2014, & $47 in 2012)http://www.astm.org/Standards/E2813.htm

“This practice is intended to serve as a concise, authoritative, and technically sound practice for Building Enclosure Commissioning (BECx) that establishes two levels of BECx: Fundamental and Enhanced.”

5

ASTM E2813: Standard Practice• Under revision • Two levels of BECx:

– Fundamental & Enhanced (NOT LEED v4 compatible)• Includes:

– Qualifications for BECxA. Under revision to be “at the discretion of the Owner”

– “process” overlap/conflict with G’line 0 & ASHRAE Standard 202– OPR: Questions representing the minimum range of issues & concerns

that must be considered under the E2813 practice during the development of the OPR to determine the level of Cx and functional performance testing required for a building or structure.

– Design Peer Review: Under revision• Fundamental: 1 at completion of CDs• Enhanced: 3 during Design Phase (SD, DD & CD)

– Addition of a Pre-Construction phase• “Direct & Substantive” during Bidding & Negotiation Under revision

– Required Testing – revised to be more clear in “Editorial 1” version. Under revision again…

ASTM E2947-2016a

Standard Guide for BECx• Guideline 3 converted to “Standard” language (ASTM E2947)

• Intent was for ASTM “Practice” to be coordinated with Guideline 3

“Process” and issued as ASTM E2947

• Includes:

–BECx P – “Provider” a duly authorized person or firm in the jurisdiction

of the project retrained by the owner

–BECx S – “Specialist” a registered design professional. Possesses the

experience and technical skills needed to:

• assess, critique, validate, verify and support the BECx team

– BECx T – “Technologist” individuals or accredited testing agencies

7

available for: $65.00 http://www.astm.org/Standards/E2947.htm

189.1 and IgCC 2012ANSI/ASHRAE/USGBC/IES Standard 189.1-2011• Cx for all buildings over 5,000sf• Systems include: Building Envelope Thermal, Moisture

& Pressurization

IgCC 2012, Chapter 9 (Construction Phase only)• Requires Pre-Occupancy Verification (typically

defined as periodic inspection not less than 25% of system)

• Table 903.1, Commissioning Plan, limited to:– Vegetative Roofs– Foundation sub-soil drainage system– Foundation waterproofing– Foundation damp proofing– Under slab vapor barrier– Flashing at:

• Exterior windows• Doors• Skylights• Wall flashing• Drainage systems

– Exterior wall coverings– Roof coverings, roof drainage and flashings

(189.1 and IgCC to merge into one document in next few years)

IgCC 2015DESIGN PHASE:611.10 Building envelope system commissioning611.10.1 - Preconstruction documentation, building thermalenvelope• developing a project-specific Cx plan• project-specific BECx specification

CONSTRUCTION PHASE:611.10.2 - Continuous air barrier commissioning• Witnessing and reporting on any continuous air barrier

testing• Periodic field inspections over the course of project

construction to ensure compliance with the continuous air barrier requirements

• A final commissioning report

611.10.3 - Continuous air barrier commissioning report.• A field inspection check list showing the requirements

necessary for proper installation of the continuous air barrier, results of any building air leakage testing and reports from field inspections

International Standards Organization (ISO) 21105NP - “Building envelope performance verification and commissioning – Program” – DRAFT

10

BECx Phase

3 2 1

Determine BECx Level & Systems to be commissioned

ü ü ü

PRE Owners Project Requirements (OPR-BE) ü ü ü

DESIGN BECx Plan ü ü xReview Architect's Basis of Design ü ü x

BECx Design Review #1 ü ü ü

DESIGN BECx Design Review #2 ü ü xBECx Design Review #3 ü x x

BECx Specification ü ü ü

Bid Scope & Pricing Review ü x xBECx Kick-off Meeting ü ü xBECx Submittal Review ü ü x

Attend Pre-Construction Trade Meetings ü x xChecklists ü ü ü

CONSTRUCTION Review Schedule ü x xConstruction Observation - Weekly ü x x

Construction Observation - Bi Weekly ü ü xConstruction Observation - Monthly ü x ü

BECx Meetings During Construction ü x xWitness Testing - 100% ü x xWitness Testing - 50% ü ü xWitness Testing - 25% ü x ü

BECx Report ü ü ü

BE Systems Maintenance Manual ü x xTraining ü x x

OCCUPANCY 10 Month Pre-Warranty Review ü ü xOn-Going BECx Plan ü x x

CFR Plan ü x xFinal BECx Report ü x x

BECx Task Level of BECx:• Determines a level of commissioning based upon owner tolerance for risk, such as:• Cost of loss • Building use or function• Building envelope design

complexity• Environment

• Allows owner to choose which building envelope assembly(s) to be commissioned, such as:• Air/Moisture Barrier• Heat transfer control/continuity

(insulation)• Fenestration • Roof • Waterproofing• Whole building envelope

Scope of Work:§ Design Review of Building Enclosure§ Review of OPR for Building Enclosure § Review of BOD for Building Enclosure

§ References ASHRAE Guidelines 0, 1.1 and Guideline 3, 2012

LEED BD+C: New Construction, v4 Fundamental Cx - E & A Credit (Required)

(https://www.usgbc.org/credits/new-construction-commercial-interiors-core-and-shell-schools-new-construction-retail-new-c-6?view=language)

https://www.usgbc.org/credits/new-construction-commercial-interiors-core-and-shell-schools-new-construction-retail-new-c-6?view=language

LEED v4 Fundamental CxWhen:• By the end of the design development phase

Who: “…engage of CxA with the following qualifications:”• The CxA must have documented commissioning process experience on at

least two building projects with a similar scope of work. The experience must extend from early design phase through at least 10 months of occupancy

• The CxA may be:– a qualified employee of the owner– an independent consultant– an employee of the design or construction firm who is not part of the project’s design

or construction team– a disinterested subcontractor of the design or construction team

• For projects smaller than 20,000 square feet (1 860 square meters), the CxA may be a qualified member of the design or construction team.

• In all cases, the CxA must report his or her findings directly to the owner.

LEED BD+C: New Construction, v4 Enhanced Cx - E & A Credit

(Option 2 - 2 Points)https://www.usgbc.org/node/2613042?return=/credits/new-construction/v4/energy-%26amp%3B-atmosphere

Scope of Work:• Fulfill the requirements in EA Prerequisite Fundamental

Commissioning and Verification as they apply to the building’s thermal envelope

• Complete the following commissioning process (CxP) activities for the building’s thermal envelope in accordance with ASHRAE Guideline 0–2005 and the National Institute of Building Sciences (NIBS) Guideline 3–2012, Exterior Enclosure Technical Requirements for the Commissioning Process, as they relate to energy, water, indoor environmental quality, and durability.

https://www.usgbc.org/node/2613042?return=/credits/new-construction/v4/energy-%26amp;-atmosphere

Enhanced Cx - E & A Creditweb screen shot

These tasks are all MEP related, not BE

LEED v4 Enhanced CxWhen:• By the end of the design development phase

(Addenda ID#10447, July 1, 2016)For projects pursuing Option 2, envelope commissioning, the building envelope commissioning agent (BECxA) may be completely independent of the lead CxA, and oversight of envelope commissioning activities by the lead CxA is not required.

Who: “the BECxA must meet all credit requirements for the Commissioning authority. Specifically:”

§ The BECxA must have documented envelope commissioning process experience on at least two building projects with a similar scope of work.

§ The BECxA may be a qualified employee of the owner, an independent consultant, or a disinterested subcontractor of the design team.

§ https://www.usgbc.org/leedaddenda/10447

Independent BECxA (may not be an employee of the design or construction firm, nor a subcontractor to the contractor)

https://www.usgbc.org/leedaddenda/10447

Getting VALUE: What/Who really matters!

• How to fairly procure BECx– Qualifications– Scope– Fair Cost

• Scope of work– Responsive to Owner’s risk and

goals• Who is performing the BECx– Technical knowledge

• Experience • Similar buildings/climate

– BECx Process knowledge

16

BECx CertificationsUniversity of Wisconsin, Professional Development Program:https://epd.wisc.edu/course/commissioning-building-enclosure-assemblies-and-systems/• 3 day education based certification• BECxP Classes & Certification:

• CxA + BE• BECxP

17

NEBB – Certification for building enclosure testing only• Provides both firm and individual certifications• Training & exam• Experience & education pre-requisites

Future Certificates & Certifications:NIBS / ASTM / RCI – NIBS “Certificate module” for building enclosure education per ASTM, in conjunction with RCI, in partnership with Professional Testing Inc. to develop a full-scope of certifications for each area following ASTM, and per ISO/IEC 17024: Conformity assessment – General Requirements for bodies operating certification of persons

• News release, July 11, 2018

https://epd.wisc.edu/course/commissioning-building-enclosure-assemblies-and-systems/

18

certified

VBECxAuthority

Procuring a BECx Provider

Request For Qualifications

• Develop understanding of Proposers’ experience

• Request a budget range of costs

– Possibly design phase hard cost, negotiated construction phase range

• Similar technical experience?

• Similar building type experience?

• Similar climate zone experience?

• Similar energy goals experience?

• Request Education, Registration or Certification

• Request Professional affiliations

• Use of technology for communications

• Conduct an interview, meeting face to face to note how the team manages,

communicates, etc

• Allow time for team to be present at interview

Request For Proposal

• Cost based evaluation… May not result in best value for $

19

Additional Items to Consider

20

• Where RFQ/RFP is advertised can influence type of proposers

• Is BECx retained through Cx Provider or independently?

• Many Cx Providers now performing BECx, but unqualified to do so

• Some Cx Providers require their Sub, the BECx Provider meet a pre-

determined budget to get the job at lower cost than the real

required effort

• Request hours for each task of work, helps to determine if CxP is

lowering rates just to get job

• Design/Build may require that Cx be contracted through the

Contractor, so be aware that reports should come directly to the

Owner.

• Provide an outline scope of services, schedule and conceptual

building enclosure design or building size, program of systems, etc

for estimating budget

Click to edit Master title style

OVERVIEW

www.wje.com

Wiss, Janney, Elstner Associates

Solutions for the Built World

Fiona Aldous

[email protected] 297 1909

Questions

Thank you!

mailto:[email protected]

Discussion

1

§ a. Have experience writing an RFP for BECx? Y/N. Any volunteers willing to share on the experience, what they included or not? Challenges/lessons learned

§ b. Anyone using LEEDv4 or LEED enhanced? What are their experiences, please share

The BECx Design Game

Consider this Scenario….

§ 40% of your building portfolio is 5 years or older§ Last year, heating/cooling temperature complaints

rose over 20% § 80 complaints in 2016 vs. 102 complaints in 2017

§ 2 months ago, Mega Storm Z damaged 3 of your buildings§ Water damage, including leaking roofs and foundations

3

Challenge/Opportunity: • You’ve got plans to build a new facility, what will

you do to address your enclosure system? What will you put in your request for quote (RFQ)?

4

What Scope Would You Include in the RFP?

§ Pre-Design Phase

§ Design Phase

§ Pre-Construction Phase

§ Pre-Construction Phase

§ Construction Phase

§ Occupancy and Operations Phase

5. Attend a Pre-Construction Meeting

Some Thoughts on Important Scope

Pre-Design

Design

Pre-Construction

Construction

1. Review the OPR and the BOD

3. Review Design Documents

2. Prepare BECx Plan

6. Perform Secondary Reviews of the Building Enclosure Submittals

5. Attend a Pre-Construction Meeting

7. Perform Site Visits to Review Work in Progress8. Review Testing Plans, Witness Testing and/or Review Test Reports

4. Prepare BECx Specification

To be Continued …


6

Organizational changes were made

▪ New College President

▪ Facilities Department now reports directly to the College President.

▪ Entire Facilities Department more involved in design.


7

Workforce Development and Training Center


8



9



10


▪ State-of-the-art 5-story, 100,000 square foot facility

▪ To house Plastics, Advanced Manufacturing, Culinary Arts, EMT, Nursing Assistant, Computer Security, CISCO Labs, and Center for Faculty Innovation

▪ Construction to start in January 2019, and the building is slated to be ready for Fall 2020 semester.

▪ We are aiming for Net Zero Energy. Current pEUI=32.


11

How We Plan to Succeed:

▪ We are using an integrative team-oriented design process.

▪ The Commissioning Agent is also our Net Zero Consultant, and they have been an integral part of the project since the beginning.

▪ The Commissioning Agent and Construction Manager were both participants in choosing the Building Design Team.


12

OPR


13

OPR


14

OPR


15

OPR


16

OPR


17

OPR


18

Enclosure Commissioning During Design

▪ Collaboration with design team to identify necessary mockups and testing requirements.

▪ Work with design team to set performance targets for building enclosure.

▪ Provide design reviews of construction documents.

ECS 2018 Better Buildings Summit - ETRT Workshop: Going Deep on Building Enclosure Commissioning

8/30/18 19

Enclosure Commissioning During Construction

▪ Observe mockups and field/factory testing.

▪ Perform site inspections to witness installations of assemblies.

▪ Conduct whole building leakage testing with fan pressurization.

▪ Perform thermography to identify any areas of leakage and to test insulation performance.

ECS 2018 Better Buildings Summit - ETRT Workshop: Going Deep on Building Enclosure Commissioning

8/30/18 20

Questions?


21

??

Simon PallinOak Ridge National Lab (ORNL)

23

Building Enclosure Performance Metric

Do we need another metric to evaluate the performance of buildings?

24

Examples from other industriesVariables

§ Engine• Size

• # of Cylinders

• Valve resistance + timing

• Combustion time

• etc.

§ Fuel System

§ Air Supply

§ Shape (aerodynamics)

§ …

Target - Fuel Economy Performance Indicator

25

Examples from other industriesAppliances – Energy Efficiency Performance Indicator

26

Examples from other industriesAppliances – Energy Efficiency Performance Indicator

Fabric Martindale

Lumens / WattsLight Bulb

Service LifePaint

27

Variables§ R-value

• Walls • Roof• Foundation• Fenestration

§ Thermal Bridges§ Installation Quality

• Joints• Penetrations• Perforations

§ Airtightness (ACH75)§ Building Type§ Thermostat Setpoints§ HVAC Characteristics§ User Behavior§ Indoor Climate§ Outdoor Climate§ …

Target – Energy Efficiency

Performance Indicator

Building Enclosure/Envelope Performance (BEP) Metric

28

BEP MetricVariables§ R-value





Target – Energy Efficiency


§ EUI [kBtu]

§ Predicted EUI

(Simulations)

§ …

29

BEP MetricVariables§ R-value






§ EUI [kBtu]

§ Predicted EUI

(Simulations)

§ …

- Only Applicable to Existing Buildings

- One-way Connection- Highly Influenced by Building Usage

30

Variables§ R-value






§ EUI [kBtu]

§ Simulations

§ …

- Complicated

- Time Consuming

BEP Metric

31

Variables

§ R-value• Walls • Roof• Foundation• Fenestration




Heat losses/gains from conductive heat transfer are described through R-value.

!"#$%[', )*+/ℎ.] = 1 2 34 2 56 − 58

!"#$9 = :; 2 <; 2 =; 2 56 − 58 ,

: = 41

Out In

Out In= 3: 2 56 − 58

BEP Metric - Theory

32

Variables





!"## =1

&'()* + &'(), - .

&'()* =/ - .0

&'(), = !1 - 21 - 31

BEP Metric - Theory

33

Variables





ASCE 2010 27.3.2

!"## =1

&'()* + &'(), - .

&'()* =/ - .0

&'(), = !1 - 21 - 31

BEP Metric - Theory

34

Air Infiltration Thermal Resistance§ Airtightness (ACH75)§ Building Type§ Exposure

Building Enclosure Performance (BEP) metric

Thermal Resistance§ R-value


§ Thermal Bridges

Installation QualityReduction Factor§ Joints§ Penetrations§ Perforations§ Training

Indoor Climate§ Thermostat Setpoints§ HVAC Characteristics§ User Behavior

Weather Conditions§ Temperature§ Wind Loads

Variables





BEP Metric - Theory

35

Variables





BEP Metric - Theory

36

BEP Metric - Validation

Real Building Field Testing Lab Testing Simulations

BEP metric

37


Real Building Field Testing Lab Testing Simulations

BEP metric

38


Lab Testing Simulations

BEP metric( ) ( )1 1 1opa fen

inf wall roof fentot tot

install

A AR R R U

A ABEP

d

- - -+ × + + ×=

39

Discussion39

• General thoughts/reactions…– would this be helpful for your

design/build process?– Do you want to help/participate in the

research?– Do you have buildings we could

test?

40

Wrap Up – Next Steps

Collaboration: the Envelope Tech Team

§ Build awareness with guidance and information on envelope technology solutions

§ Conduct envelope technology verification studies

§ Offer technical assistance for envelope projects

Engage and support Members in efforts to accelerate adoption of building envelope technologies

Check out the Envelope Tech Team Web Resources

§ Topic Areas§ Windows

§ Walls

§ Roofs

§ Resources§ Case Studies

§ Calculators

§ Design Guides

§ Fact Sheets

§ Toolkits

§ …and more…

42

https://betterbuildingsinitiative.energy.gov/alliance/technology-solution/building-envelope

Join the Envelope Tech Research Team!

Building Owners

Building Managers

Architects and Engineers

Installers/ Builders

Researchers

Subject Matter Experts

Trade Associations Manufacturers

Energy Service Providers

Engage in R&D:• Addressing airtightness requirements• Investigating Building Enclosure Performance Metric

Email: [email protected]

To join, email Melissa Lapsa: [email protected]


Thank you!

Moderator§ Melissa Voss Lapsa, ORNL, [email protected]
