Builder Forum Series: Fenestration and Step Code Presented by Township of Langley Green Buildings and Cascadia Windows & Doors
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Builder Forum Series:
Fenestration and
Step Code
Presented by Township of
Langley Green Buildings and
Cascadia Windows & Doors
Update from Adrian Kanjer, BC Hydro
Tuesday, March 23, 2021
9:00 – 11:00 am
Music: https://www.bensound.com/
1. TOL Welcome
2. CleanBC Better Homes New Home
Construction Program update –
AGENDA Adrian Kanjer, BC Hydro
3. New Green Buildings webpages demo
4. Compliance Corner with Ajeen
5. Fenestration and Step Code –
Cascadia Windows & Doors
6. Closing – See you in May!
• Mentimeter polling throughout the webinar (first poll in
about 25 minutes)
• Go to menti.com and use the code 8186 1095
January BFS Recap • Ventilation and Step Code • One of the largest contributions to TEDI • Do not over ventilate – size accordingly • Include heat recovery
January BFS Recap • Ventilation and Step Code • One of the largest contributions to TEDI • Do not over ventilate – size accordingly • Include heat recovery
Step Code + Climate Action
Step Code + Climate Action See prior webinars on our page for education on how to meet Township targets: • Building Envelope Energy Efficiency - How to Avoid Surprises • Airtightness Techniques and Heat Pump Best Practices • Ventilation and Step Code • Windows and Step Code – you are here • Coming – Passive Cooling • Coming – Realtor specific training
Next Builder Forum - Passive Cooling • Learn how to reduce unmet hours – passive • Reduce cooling demand - active • Improve comfort • Reduce operating costs
JANURAY 27 BUILDER FORUM SERIES: Visit tol.ca/gblearn for past event
WHAT WE HEARD FROM YOU feedback summaries + more!
“Ventilation takes up approx. 40% of TEDI.
What percentage of your buildings Therefore if ventilation is designed
Level of satisfaction with the webinar: properly, it will help the building meet
Somewhat
have included an HRV/ERV? Step Code.”
Dissatisfied 34%
Somewhat 2% 26% “More information regarding SFDs and
Satisfied
4%
Dissatisfied 14% 14% achieving Step Code compliance. Spent
11%
17% too much time on MFDs and corridor/
common area discussions.”
Satisfied
76-100% 51-75% 26-50% 1-25% None
77% Has the webinar increased your
Has your ventilation knowledge confidence in building to the Upper
“Well spoken presenter who made the increased? Steps of the Step Code?
information relatable and not overly technical.”
63% Increased 23% 17% Stayed the
greatly same
24%
Do owners ask for an HRV/ERV to be 13%
included in their buildings?
Stayed the Increased a Increased
Frequently 10% same bit greatly 60%
Increased a
Sometimes 35% bit
Rarely “The charts illustrating the impact of ventilation
37%
and heat recovery in relation to other building
Never 18% components was illuminating. Also appreciated
a very clear presentation of ideas and solutions.”
2. CleanBC Better Homes New Home Construction Program $$
CleanBC Better Homes
New Construction Program
Rebates for Part 9 Residential Builders
March 23, 2021
Adrian Kanjer, MS, CEM
Project Manager, Residential New Construction ProgramAgenda • Program overview • Eligibility criteria • Available rebates • How to apply • Q&A
Program overview • The CleanBC Better Homes New Construction Program provides financial incentives for the construction of new, high-performance residential homes • Will advance CleanBC objectives and help achieve the building sector’s 2030 emission reduction target by supporting ESC adoption and incentivizing builders to use electric space and water heating systems • Developed and funded by the Province of BC, administered by BC Hydro
Program goals • Reduce GHG emissions in BC’s residential new construction sector: • High efficiency electric space and water heating • High performance building envelopes • Increasing the number of 100% electric homes (no fossil fuel connection to house) • Prepare market for higher performance requirements and building codes leading up to 2032 when all new buildings will be required to be “net-zero energy ready” • Communicate the “go electric for homes” message
Rebate Pathways
• Applicants may apply for one of two rebate pathways:
• Energy Step Code pathway: build a new home that meets a minimum BC Energy
Step code level and uses electric space and water heating systems.
or
• Heat pump pathway: build a new home that uses an electric heat pump for
space heating or water heating, regardless of Energy Step Code level.
• Add-on rebates
• All-Electric Bonus: build a home with no fossil fuel connection whatsoever (e.g.
natural gas, propane, oil) and receive an additional $4,000 per home.
• Energy Advisor Support Rebate: work with a Program Qualified Energy Advisor and
receive an additional $1,000 per home.Eligibility • Homes must be constructed by a licensed residential builder or an owner builder authorized by BC Housing • Homes must be constructed in compliance with Part 9 of the BC Building Code and, where applicable, the municipally-adopted minimum BC Energy Step Code requirement • Homes must be built in BC Hydro (including New West Electric) service territory • Eligible building types: • Single family detached • Laneway home • Duplex • Triplex • Row or townhome
Eligibility (continued) • An applicant may include a licensed residential builder, owner builder, or Program Qualified Energy Advisor applying on a builder’s behalf. • Builders participating in the Energy Step Code pathway or applying for the Energy Advisor Support Rebate or All-Electric Bonus in the Heat Pump pathway must work with a Program Qualified Energy Advisor • Building permits must be issued on or after April 1, 2020
Heat pump pathway incentives
• Build a home that uses an electric heat pump for space heating or water heating
Heat pump type Requirements Rebate Energy Advisor All-Electric
Support Rebate Bonus
(optional) (optional)
Air source heat Variable speed mini-split, $3,000 $1,000 per individually $4,000 per
pump multi-split, or central ASHP modelled home or unit home or unit
(Tier 2 only) • $800 to builder
HSPF ≥9.3, SEER ≥16 • $200 to EA
Must be on the QPL
Air-to-water Must be on the QPL $3,000
hydronic heat pump
Combined space & Must be on the QPL $4,000
water heat pump
Heat pump water Must be on the QPL $1,000
heaterEnergy Step Code pathway incentives
• Build a home to Step 3 or higher using electric space and water heating systems
ESC Step Rebate Energy Advisor Support All-Electric Bonus
Rebate (optional)
Step 3 $4,000 $1,000 per individually $4,000 per home or unit
modelled home or unit
Step 4 $6,000 • $800 to builder
• $200 to EA
Step 5 $10,000
(or Passive House-certified)How to apply
1. Carefully review the program website, including the Rebate Eligibility
Requirements and Terms and Conditions to confirm your eligibility
2. Fill out and submit the pre-registration form
• Within 30 days of submitting this form, BC Hydro will send you an email with the status of
your submission
3. Complete your project within 12 months of the date of your pre-approval
confirmation email
4. Submit the post-construction application and required supporting
documentation
5. Application reviewed and if approved, rebates issued
Questions? BC Hydro’s Project Manager, Residential New Construction Program and the
CleanBC Energy Coaches are available to support applicantsSupporting documentation
Heat pump pathway
Heat pump EA Support All-Electric
Document
rebate rebate Bonus
Pre-registration
• Energy Advisor Appointment Consent Form
(if applicable)
Post-construction
• Heat pump installation invoice
• As-Built BC Energy Compliance Report
• EnerGuide (N) Evaluation Homeowner
Information SheetSupporting documentation
Energy Step Code pathway
ESC rebate & EA ESC rebate & EA
All-Electric
Document Support rebate Support rebate
Bonus
(Step 3-5) (PH)
Pre-registration
• Energy Advisor Appointment Consent
Form (if applicable)
Post-construction
• As-Built BC Energy Compliance Report
• EnerGuide (N) Evaluation Homeowner
Information Sheet
• Passive House Planning Package Key Points • Rebates can be topped up with municipal or federal rebates • Projects already on the go could be eligible - Building Permits issued on or after April 1, 2020 • $3,500,000 budget for 2 years - Currently over 30% applied for • Targeting 500 applications
Questions?
• Website: www.betterhomesbc.ca/cleanbc-new-construction
• All info
• Apply here
• General inquiries:
o betterhomesbc@gov.bc.ca
• 1:1 Program support:
o Adrian Kanjer, Project Manager, Residential New Construction Program, BC Hydro
adrian.kanjer@bchydro.com
CleanBC Commercial New Construction Program
Website: https://betterbuildingsbc.ca/incentives/cleanbc-commercial-new-
construction-program/3. Green Buildings webpage demo
• A Mentimeter question to start off with:
• Have you ever visited our TOL Green Buildings webpages?
Mentimeter polling throughout the webinar
Go to menti.com and use the code 8186 10954.Compliance Notes for EAs
• Section F – GHG Reporting
• HOT2000 (Latest Version) GHG
Emissions may not be correct
• Refer to EnerGuide Home Owner
Information Sheet for correct value or
do manual calculations.
• Report the Correct GHGIEnergy Advisors – Points to Note
Variation in Modelled floor area Checklist for EA
• Typically in the range of 10% • Make sure you include all the
Conditioned floor area
• BCBC 2018 does not specify a limit for
Part 9 • Verify against Architectural drawings
• Area can vary based on wall thickness • Clarify if major variation between MFA
& Density (Number of Units) & Arch drawings are noticed.
• Confirm the area takeoffs are correct.
For Example
Project 1 Project 2
Area as per Architect Drawings 519.1 Sqm 643 Sqm
Area as per Compliance Report 414.15 Sqm 491 Sqm
Variance 20.2% 23.6%
Conclusion Area takeoff is correct. The wall Area takeoff was wrong. They
thickness and density caused the issue missed the Rec area in GarageEnergy Modelers – Points to Note
For Passively Cooled Buildings
• Partial Air Conditioning for Residential Suites –
“Not Cool”
• If you have Air conditioner – this is actively cooled
building. No 200 Overheat hours requirements.
Follow requirements for Actively Cooled Buildings.
• If you still want to model for Passively Cooled
Buildings – Switch off the Air conditioners and
perform the simulation.5. Cascadia Windows and Doors
CASCADIA – EDUCATIONAL PRESENTATION THE FUTURE OF WINDOWS AND THE BC ENERGY STEP CODE Understanding how high-performance windows offer the best bang-for-buck toward compliance
AGENDA AGENDA: WHAT ARE WE LOOKING AT TODAY? • Intro to Cascadia Windows & Doors • Understand the design flexibility offered by an envelope and fenestration-focused design approach • Discover which passive elements of the building envelope have the highest impact on energy efficiency, and how those elements can be targeted for improvement • Understand the objectives of thermally improved window install detailing and some potential pitfalls, using real- life examples • Learn options to cost-optimize new construction and renovation projects based on strategic use of high- performance fenestration products
INTRO TO CASCADIA WINDOWS & DOORS
INTRO TO CASCADIA WINDOWS & DOORS
COMMERCIAL & MULTI-FAMILY PASSIVE HOUSE & RESIDENTIAL THERMAL SPACER FOR CLADDING
SUPPORT SYSTEMSINTRO TO CASCADIA WINDOWS & DOORS WINDOW WALLS WINDOWS & DOORS STOREFRONT GLAZING
INTRO TO CASCADIA WINDOWS & DOORS
ABOUT THE COMPANY
• Manufacturing plant & head office located in Langley, BC
• Founded in 2008
PRIMARY MARKETS
• BC, Yukon, Washington, Oregon, California
COMPANY PURPOSE
• To provide simple and cost-effective solutions to
stringent energy code requirementsTHE PROBLEM WITH BUILDINGS Why are new Building Energy Performance Standards (BEPS) being introduced?
WHAT’S THE PROBLEM?
WHAT’S THE PROBLEM?
ENERGY USE EMISSIONS
2% 3% 3%
36%
62%
93%
Electricity Natural Gas Other Heating Fuels Electricity Natural Gas Other Heating FuelsTOWNSHIP OF LANGLEY CLIMATE ACTION STRATEGY
TOWNSHIP OF LANGLEY CLIMATE ACTION STRATEGY
WHAT R THE NUMBERS?
1930s 1980s 2000s
ALL THREE BUILDINGS
ARE SOMEWHERE BETWEEN
R-2 & R-3.5DICTATING BETTER PERFORMANCE
DICTATING BETTER PERFORMANCE
vENERGY CONSERVATION IN BUILDINGS
REGULATORY CHANGES
MUST BE BASED IN REALITY, SO
FIRST – YOU HAVE TO HAVE THE TECH
THEN – YOU CAN CHANGE THE LAWS
TO REQUIRE HIGHER PERFORMANCE
NEW TECH ENABLES
MORE STRINGENT REGULATIONSUNDERSTANDING BUILDING ENERGY PERFORMANCE STANDARDS (BEPS) How do programs like the BC Step Code differ from previous performance metrics?
SCOPE OF OUR REVIEW • There are limits to the depth of our review today • I’m not suggesting that you will learn to be an energy modeller in the next 45 minutes • Compliance with energy codes is achieved through multiple measures • But every project starts somewhere • We will explore what is the most efficient starting point to end up with energy code compliance
THIS CODE IS DIFFERENT
PREVIOUS ENERGY CODES NOW (BC ENERGY STEP CODE EXAMPLE)
SEPARATE ASSEMBLY R-VALUES ONE ENERGY USE LIMITBC STEP CODES • Value of knowing future targets for industry participants (manufacturers, builders, architects) • Skip steps! This opportunity is really important • Save money: re-tool or re-train just once or twice; not five times • To be clear, we will be building Net-Zero-Ready construction in 12 years or less, as a built-to-minimum-code building • You might as well get used to the necessary tech and methods before it’s the legal minimum
TARGETING THE WEAKEST LINK Exploring design flexibility offered under BEPS
DESIGN FLEXIBILITY • Flexibility • Responsibility • Start with getting the building enclosure performing well • Everything else is so much easier after that • “Easier” = less cost and more options
IMPACT OF WINDOWS
ON BUILDING PERFORMANCE
PROJECT EXAMPLE
• Mid-rise, MURB
• Window-to-wall ratio of roughly 1:2
• Overall building energy performance target of > R-8
Jervis Street
Vancouver, BCRUNNING PERFORMANCE NUMBERS
DESIGN FLEXIBILITY • Exterior insulation – yes or no? • Mechanical system size; type • A bigger home? • Glazing area – more?
GLAZING AREA - MORE
ALUMINUM WINDOW WALL
40%
WINDOW-TO-WALL RATIO WHAT DOES INCREASED
TEDI - 35 kWh/m2
TEUI - 111 kWh/m2
GLAZING AREA LOOK
LIKE?GLAZING AREA - MORE
ALUMINUM WINDOW WALL FIBERGLASS WINDOW WALL
40%
WINDOW-TO-WALL RATIO
40%
WINDOW-TO-WALL RATIO
TEDI - 35 kWh/m2 TEDI - 30 kWh/m2
TEUI - 111 kWh/m2 TEUI - 106 kWh/m2GLAZING AREA - MORE
ALUMINUM WINDOW WALL FIBERGLASS WINDOW WALL
40%
WINDOW-TO-WALL RATIO
45%
WINDOW-TO-WALL RATIO
TEDI - 35 kWh/m2 TEDI - 30 kWh/m2
TEUI - 111 kWh/m2 TEUI - 107 kWh/m2GLAZING AREA - MORE
ALUMINUM WINDOW WALL FIBERGLASS WINDOW WALL
40%
WINDOW-TO-WALL RATIO
50%
WINDOW-TO-WALL RATIO
TEDI - 35 kWh/m2 TEDI - 30 kWh/m2
TEUI - 111 kWh/m2 TEUI - 107 kWh/m2GLAZING AREA - MORE
ALUMINUM WINDOW WALL FIBERGLASS WINDOW WALL
40%
WINDOW-TO-WALL RATIO
55%
WINDOW-TO-WALL RATIO
TEDI - 35 kWh/m2 TEDI - 30 kWh/m2
TEUI - 111 kWh/m2 TEUI – 107 kWh/m2GLAZING AREA - MORE
ALUMINUM WINDOW WALL FIBERGLASS WINDOW WALL
40%
WINDOW-TO-WALL RATIO
60%
WINDOW-TO-WALL RATIO
TEDI - 35 kWh/m2 TEDI - 30 kWh/m2
TEUI - 111 kWh/m2 TEUI - 108 kWh/m2GLAZING AREA - MORE
ALUMINUM WINDOW WALL FIBERGLASS WINDOW WALL
40%
WINDOW-TO-WALL RATIO
65%
WINDOW-TO-WALL RATIO
TEDI - 35 kWh/m2 TEDI - 30 kWh/m2
TEUI - 111 kWh/m2 TEUI - 109 kWh/m2GLAZING AREA - MORE
ALUMINUM WINDOW WALL FIBERGLASS WINDOW WALL
40%
WINDOW-TO-WALL RATIO
TEDI - 36 kWh/m2
TEUI - 125 kWh/m2
40%
WINDOW-TO-WALL RATIO
TEDI - 32 kWh/m2
TEUI - 121 kWh/m2GLAZING AREA - MORE
ALUMINUM WINDOW WALL FIBERGLASS WINDOW WALL
40%
WINDOW-TO-WALL RATIO
TEDI - 36 kWh/m2
TEUI - 125 kWh/m2
45%
WINDOW-TO-WALL RATIO
TEDI - 32 kWh/m2
TEUI - 122 kWh/m2GLAZING AREA - MORE
ALUMINUM WINDOW WALL FIBERGLASS WINDOW WALL
40%
WINDOW-TO-WALL RATIO
TEDI - 36 kWh/m2
TEUI - 125 kWh/m2
50%
WINDOW-TO-WALL RATIO
TEDI - 32 kWh/m2
TEUI - 124 kWh/m2GLAZING AREA - MORE
ALUMINUM WINDOW WALL FIBERGLASS WINDOW WALL
40%
WINDOW-TO-WALL RATIO
TEDI - 36 kWh/m2
TEUI - 125 kWh/m2
55%
WINDOW-TO-WALL RATIO
TEDI - 32 kWh/m2
TEUI - 125 kWh/m2OPTIMIZING THE WINDOW IN THE ENVELOPE Mitigating weaknesses and leveraging strengths in the building envelope design
AIR LEAKAGE – FAST FACTS
• Windows and doors that swing shut
commonly work better than ones that slide
• Gaskets that compress offer better air seals
than gaskets the slide
• Think of a hatch on a boat
• Sash designs and door sills that have
compression seals and a ‘step’, perform
better This is something to watch for
GOVERNMENT OF CANADAWHY AIR LEAKAGE MATTERS
• Air leakage is a measurement of the
entire building envelope—including
the window details and the
window’s seals
• It impacts air exchanges of the
building (key measurement of BC
Step Code)
• Air leakage at and around windows
and doors is getting more scrutiny
because they involve more pieces
and moving parts
NOPPHALUX KOSAKORN PAUL MENZSHADING – FAST FACTS BUILDING • Building form • Things surrounding the building • Placement of the building & windows
SHADING – FAST FACTS
EXTERIOR SHADING
• Exterior shading devices control heat gain,
provide privacy & reduce glare SUMMER SUN
WINTER SUNSHADING – FAST FACTS
GLASS
• Heat gain can be controlled by Low-E coatings
on the glass surface
JELD-WENSHADING – FAST FACTS
INTERIOR SHADING
• Interior shading devices provide privacy
& reduce glare
NEW YORK MAGAZINESHADING – FAST FACTS
EXTERIOR INTERIOR
OVERHANGS LOW-E ON GLASS
SHADING SHADING
PRIVACY
GLARE
SOMEWHAT
SOMEWHAT
HEAT GAIN
MOSTLY
WINDOW PLACEMENT IN THE WALL KEN SOBLE TOWER – HAMILTON, ON
WINDOW PLACEMENT IN THE WALL
Inside 20OC Outside -10OC
0.187 W/mK
Are you crazy!WINDOW PLACEMENT IN THE WALL
Inside 20OC Outside -10OC
0.01 W/mK
That’s much better!
SchematicISSUES WITH POSITIONING WINDOWS
ISSUES LIKE… GRAVITY
VS.ISSUES LIKE… GRAVITY
VS.THE IMPORTANCE OF PERFORMANCE Selecting the most effective window for your project
TYPICAL WINDOW FRAMES WOOD FRAME VINYL / UPVC FIBERGLASS ALUMINUM PHOTO CREDIT: NEUFFER WINDOWS PHOTO CREDIT: EUROLINE WINDOWS PHOTO CREDIT: CASCADIA WINDOWS & DOORS PHOTO CREDIT: GLO EUROPEAN WINDOWS
TYPICAL APPLICATIONS
ALL CAN REACH
HIGH-PERFORMANCE BASED ON
CLEVER PRODUCT DESIGNTYPICAL APPLICATIONS
WOOD FRAME VINYL / UPVC FIBERGLASS ALUMINUM
RESIDENTIAL
MULTI-FAMILY
RESIDENTIAL MULTI-FAMILY
RESIDENTIAL COMMERCIAL
MULTI-FAMILY COMMERCIAL
HIGH-RISE
HIGH-RISE
PHOTO CREDIT: NEUFFER WINDOWS PHOTO CREDIT: EUROLINE WINDOWS PHOTO CREDIT: CASCADIA WINDOWS & DOORS PHOTO CREDIT: GLO EUROPEAN WINDOWSTYPICAL APPLICATIONS
WOOD FRAME VINYL / UPVC FIBERGLASS ALUMINUM
RESIDENTIAL
MULTI-FAMILY
MULTI-FAMILY
COMMERCIAL
COMMERCIAL
HIGH-RISE
HIGH-RISE
PHOTO CREDIT: NEUFFER WINDOWS PHOTO CREDIT: EUROLINE WINDOWS PHOTO CREDIT: CASCADIA WINDOWS & DOORS PHOTO CREDIT: GLO EUROPEAN WINDOWSA HISTORY OF WINDOW PERFORMANCE
FIBERGLASS FRAME
1970s 1980s 1990s 2000s 2010s 2020s
LOW-E
(soft coat) LOW-E
(soft coat)
+57% +36% +20% +22%
AIR AIR ARGON +172% ARGON ARGON
R-0.7 R-1.1 R-1.5 R-1.8 R-2.2 R-7.1THERMAL PERFORMANCE
THERMAL PERFORMANCE
Typical Thermally Broken Aluminum Frame Typical Fiberglass Frame
85% IMPROVEMENT
REDUCED HEAT LOSS THROUGH WINDOWS
Standard IGU: Standard IGU:
• Low-E • Low-E FABRICATORS
USING ACTUAL NFRC CERTIFIED U-VALUES FROM WINDOW
• Argon fill • Argon fill
• Stainless steel spacers • Stainless steel spacers
R VALUE: 2.0 R VALUE: 3.7THERMAL PERFORMANCE
Typical Thermally Broken Aluminum Frame Typical Fiberglass Frame
CASCADIA EXAMPLES
R-4.1 R-7.1
Standard IGU: Double Glazing Triple IGU:
Standard Glazing
• Low-E • Low-E
OVER 100% IMPROVEMENT
• Argon fill
• Stainless steel spacers
OVER 250% IMPROVEMENT
• Argon fill
• Stainless steel spacers
R VALUE: 2.0 R VALUE: 3.7THERMAL PERFORMANCE
30-50%
of a building’s heating & cooling energy
is lost through windows
BY IMPROVING
THE FRAME, YOU IMPROVE THE
20-30%
of a typical window areas is
OVERALL PERFORMANCE OF THE
represented by the window frame
ENTIRE WINDOW
Broeckx-Smith, S., Suh, S., 2019KEY TAKE-AWAYS BC Energy Step Code involves a whole building approach: one energy use limit. The passive elements of the building enclosure offer the most significant opportunity for compliance. Improve the weakest R-value components to make the biggest whole-building gain. • Enjoy the favorable cost trade-offs that result
QUESTIONS
6. Credits • BC Housing CPD - We will send you the proof of attendance. Your registration/sign-in today acts as your proof • AIBC - No work on your part! • BOABC – you submit • Attendance is tracked – One credit per hour • Sarah will send the attendee list to AIBC and they will give you your LUs
Acknowledgements
• Michael Bousfield, Cascadia Windows & Doors
• BC Hydro
• YOU!
Greenbuildings@tol.ca
Thank youtol.ca/greenbuildings
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