energy step code builder breakfast #2 - port moody · bcit zero energy building lab workshop. 5...

Photo: Joep Olthuis

Energy Step Code Builder Breakfast #2

May 2, 2019

Overview of Engagement and Agenda

3

Stakeholder Engagement Overview

Builder Breakfast #1

• February 20, 2019

• Presentation and discussion notes available online

Builder Breakfast #2

• May 2, 2019

• Share feedback from builder breakfast #1

• Present recommended strategy

Draft Strategy for Council Consideration

• Summer 2019

• Present recommended strategy for Council consideration

4

Agenda

Presentations

1. Feedback Results & Recommended Strategy

• Laura Sampliner, City of Port Moody

2. Overview of City Process & Expectations

• Robyn MacLeod, City of Port Moody

3. Building Energy Efficient Homes

• Corey Siemens & Maya Chorobik

4. Fill out Feedback Forms

5. BCIT Zero Energy Building lab Workshop

5

Objectives for Today

Become familiar with Port Moody’s recommended adoption approach

Gain a better understanding of the City’s expectations in the initial year

Hear about applicable real life building efficiency applications

Fill out feedback forms

Participate in the workshop

Session 1 Feedback Results

7

Builder Breakfast #1 Feedback Results

• 3 in person

• 18 online

• 11 (8 from online)

responses were those

who attended BB #1

16%

27%

3%

8%

22%

13%

11%

developer

builder

engineer

architect

designer

contractor/tradesperson

Other

Total Responses: 21

8

• Feedback form demonstrates

support for early adoption.

• BB discussion gave general

sense of support for early

adoption.


0

2

4

6

8

10

12

yes no No answer not sure

Should Port Moody Pursue Early Adoption?

9

• Surprisingly accelerated

approach is favoured (by 1

person).

• Based on BB discussion,

the gradual approach was

preferred.


0 2 4 6 8 10 12

option B - a gradual approach that would put the Cityof Port Moody one year ahead of the provincially-

regulated timeline for adoption of the Step Code. (A1)

option C -an accelerated approach that would ensuremost archetypes get to the mid-level steps in the

Step Code as quickly as possible. (A2)

Not displayed

Which Option Do Respondents Prefer?

10


60%10%

25%

5%

Do you support an option to meet a GHGi Target?

yes

no

not sure

No answer

81%

14%

5%

Do you support a mid-construction blower door test

requirement?

yes

no

No answer

81%

5%

5%

9%

Do you support a requirement for Benchmarking and/or Labelling?

yes

no

not sure

No answer

11


Resources

• Energy Step Code webpage

• BC Housing

• CHBA

• EGBC

11

9

11

10

5

6

9

6

14

12

1

0 2 4 6 8 10 12 14 16

Introduction to BC Energy Step Code

Energy modelling and the role of energyadvisors

Hands-on training (e.g. wall assembly or blowerdoor test demonstrations)

Trade-specific training (e.g. structural,plumbing)

Marketing energy-efficient homes

New technologies

New construction techniques

Right-sizing of heating systems

Ventilation in energy-efficient homes

Building envelopes

Other

Training Needs & Suggestions

https://energystepcode.ca/

https://www.bchousing.org/research-centre/learning-centre

http://chbabc.org/

https://www.egbc.ca/

12

Summary of Feedback

• General support for early adoption (survey and discussion).

• When looking at discussion notes and survey, the gradual

approach is more preferred.

• Support for GHGi step down approach.

• Support for mid-construction blower door test requirement.

• Support for labelling and benchmarking requirements.

Recommended Strategy

14

Strategy Development

The strategy was developed with consideration from…

• Consultation with other municipalities

• Participation in peer networks & subcommittees

• Staff working group research and analysis

• Builder breakfast #1 discussion

• Builder breakfast #1 feedback

15

Provincial Commitments

16

Gradual Early Adoption of BC ESC

Recommended

StepEstimated Timetable for Future Adoption

2020 2021 2025 2030

Part 9

Townhomes &

apartments

Step 1 Step 3 Step 4 Step 5

SFD, duplex, other Step 1 Step 3 Step 4 Step 5

Part 3

Residential

concrete towers


Residential wood

frame low/mid rise


Office and retail

buildings


Hotel Step 1 Step 2 Step 3 Step 3

17

Requirements

Rezoning Applications

• Rezoning applications for Part 3 concrete and wood frame towers will have the option to comply with either:

1. The specified Step Code step for the building archetype; OR

2. A step below the specified step for the archetype AND meet a greenhouse gas intensity of 6kg/m2/year

Building Permits

• Building permits will be subject to the specified Step Code “step” in building bylaw based on the building archetype.

18

Mid Construction Blower Door Test Requirement

Conducted by an Energy Advisor or a Registered Professional.

Required to improve the airtightness and/or energy performance of the building if:

• More than 1.5 ACH50 above the proposed value

in the energy compliance report; OR

• With sub-standard energy-efficiency upgrades

19

Mid Construction Blower Door Test Requirement

A second pre-drywall blower door test and/or new verification report may be required.

Mid-Construction Form

• Completed by the Energy Advisor or Registered Professional

• Indicates pre-drywall blower door test results and verification of all building energy efficiency upgrades.

20

Home Energy Labelling (Part 9) Requirement

Prior to occupancy, the applicant must:

Create a home energy label for the

dwelling(s)

Using information from compliance forms:

• Submit to NRCAN EnerGuide; OR

• Create alternative energy label

21

Energy Benchmarking (Part 3) Requirement

Prior to occupancy, the applicant must:

• Create an Energy Star Portfolio Manager profile of the building(s)

• share the property profile with the City of Port Moody as a “Read Only” permission level.

City Process and Expectations

23

Energy Step Code Bylaw

Compliance with the Bylaw would be based on application date.

Development Permit after September 1, 2019

AND

Building Permit after January 1, 2020

24

Rezoning and Development Application Process

Project Conception

Design Building Energy ModelingApplication submission

Staff review and comments

Community Planning Advisory

Committee

Revisions as needed

Council authorization

LegendOwner/Agent

Registered Professional/ Energy AdvisorCity of Port Moody

25

Building Permit Process

Design BuildingDevelop Energy

Model

Building Permit Application:

* Pre-Construction Code Compliance Report

* Energy modeling report (typically an EnerGuide report)

For Part 3 projects use updated letters of assurance that reference the Energy Step Code

Drawings must include:

*Climate Zone

* The Energy Step pursed

* Step Code target metrics

* Air barrier details

Confirm code compliance and issue BP

LegendOwner/Agent

Energy Advisor/Registered ProfessionalCity of Port Moody

26

Documentation – Part 9 Construction

Compliance Forms

1. Pre-construction

2. Mid-construction blower door test (not yet published)

3. As-built

• Standardizes information reported.

• Translates an energy model into a BC Energy Step Code report.

• Local governments use to verify compliance with local Step Code requirements.

27

Documentation – Part 3 Construction

Statement of Intent & Letters of Assurance

• Assuring that the project substantially complies with the City’s

Step Code requirements

• Local governments use to confirm compliance with local Step

Code requirements.

28

Inspections

• Building Officials may choose to inspect certain items at their discretion.

• Building Officials may be on site for mid-construction blower door testing.

• Compliance confirmed by performance

29

Make Sure To

• Connect with an Energy Advisor early in design stage.

• Follow the permitting process.

• Be thorough in your documentation.

• Participate in professional development.

• Reach out to staff for any questions.

Building Energy Efficient Homes

Maple Ridge Building Better

Energy Step Code Demonstration House

Maple Ridge Building Better

Project Goals

• Partner with local builder to construct

typical Maple Ridge single family home

to Step 3 of the Energy Step Code

• Document the process of working with

an Energy Advisor and determining what

to do to meet Step 3

• Track the entire construction process

through photos, videos and interviews

• Track costs to find out the incremental

cost of building to Step 3 in Maple Ridge

• Provide opportunities for on-site peer

learning and resources for City website

Working with an Energy Advisor

What did you do differently?

• Attic insulation

• Wall insulation

• Under slab insulation

• More efficient windows

Thermal Energy Demand Intensity (TEDI)

Envelope

ERS Rating % Lower than Reference

House

or

Mechanical Energy Use Intensity (MEUI)

Equipment and Systems

• Tankless hot water heater

• More efficient furnace with variable speed

DC motor

Air Changes Per Hour (ACH) at 50 Pa

Airtightness• Exterior air barrier

• Targeted 2.5 ACH at 50 Pa

• Achieved 1.3 ACH at 50 Pa

Importance of Mid-Construction Blower Door Test

Diagnosing Leakage Areas

Identified leakage areas:

• Sill plate at foundation

• Primary flashing at top of windows and

doors

• Fireplace venting

Two houses look the same, but…

Questions?

Corey SiemensFernwood Developments

[email protected]

Maya Chorobik

Community Energy Association

[email protected]

BCIT Zero Energy Buildings Workshop

ZERO ENERGY BUILDING

LEARNING CENTRE

48

BC Energy Step Code

and Building Science

Fundamentals

Presented by BCIT ZEBLC

Port Moody Builders’ Breakfast

2019-05-02


LEARNING CENTRE

49

https://www.youtube.com/watch?v=S4O5voOCqAQ



LEARNING CENTRE

50

48 inches and 1,000 Watts


LEARNING CENTRE

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At 55 W per m2 (coldest day)

1,000 ft2 (100 m2)

2,000 ft2 (200 m2)

10,000 ft2 (1,000 m2)

At 10 W per m2 (coldest day)

1,000 ft2 (100 m2)

2,000 ft2 (200 m2)

10,000 ft2 (1,000 m2)


LEARNING CENTRE

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Energy step code (refresher)

- 3 Metrics and a few steps…

Intro to Building Science

- 6 principles

- 5 barriers

- 4 rules (to deal with water)

ZEBLC and you

Agenda


LEARNING CENTRE

53

Who’s in the room?

Why are you here today?

Who knows what ACH stands for?

What’s TEDI?

What are the 5 critical barriers in a wall?

Before we start…


LEARNING CENTRE

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Acknowledgement


LEARNING CENTRE

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LEARNING CENTRE

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Energy Step Code = 3 metrics


LEARNING CENTRE

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Metrics, one by one…


LEARNING CENTRE

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Building Envelope


LEARNING CENTRE

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TEDI


LEARNING CENTRE

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Airtightness


LEARNING CENTRE

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ACH (or L/s)


LEARNING CENTRE

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Equipment and Systems


LEARNING CENTRE

63

MEUI or TEUI


LEARNING CENTRE

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[ACH]

[L/s]

[MEUI]

[TEUI]

[TEDI]


LEARNING CENTRE

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How Many Steps Are There?

543


LEARNING CENTRE

66

How Many Steps Are There?


LEARNING CENTRE

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LEARNING CENTRE

68

Introduction to Building Science

in the context of the BC Energy

Step Code


LEARNING CENTRE

69

To reach net zero energy in

buildings using an envelope-first

approach requires an understanding

of building science fundamentals.

Here is a quick overview of

essentials concepts that make these

buildings work!


LEARNING CENTRE

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6 Principles of High Performance

5 Critical Barriers

4 Rules of Water Management

3 Energy Step Code Metrics

What will you remember?


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1. Insulation

2. Airtightness

3. Thermal Bridges

4. Doors and Windows

5. Heat Recovery

Ventilation

6. Efficient systems and

appliances

6 Principles of High Performance

Construction


LEARNING CENTRE

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LEARNING CENTRE

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Layers of materials and components that control elements

(needed in all assemblies)

5 Critical Barriers


LEARNING CENTRE

Example: Window Sill


LEARNING CENTRE

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4 Ds of Water Management


LEARNING CENTRE

76

You need the 6 - 5 - 4 to

achieve the 3…


LEARNING CENTRE

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If you want to learn more…


LEARNING CENTRE

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If you want to learn more…


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Extracts from CESA 1050,

1110, 1120 and 1500…


LEARNING CENTRE

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Mock-ups and hands-on

learning


LEARNING CENTRE

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Air Barrier Planning


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Energy Step Code Costing


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Thank you and good luck…




LEARNING CENTRE

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More info:

www.bcit.ca/zeroenergybuildings

http://www.bcit.ca/zeroenergybuildings

energy step code builder breakfast #2 - port moody · bcit zero energy building lab workshop. 5...

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