High Performance Buildings - Passive House Canada · 2017. 11. 8. · Procurement. • Represents...
Transcript of High Performance Buildings - Passive House Canada · 2017. 11. 8. · Procurement. • Represents...
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Chapter #: Chapter Title
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High Performance Buildings
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Conventional buildings:
United Nations Environment Programme (UNEP-SBCI)
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Chapter #: Chapter Title
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Policy Context
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Why Passive House?
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Chapter #: Chapter Title
Market Transformation
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Energy Use Intensity (kWh Per m² Per Year) For Residential Buildings In Canada
146
3831 9 2
15 0-15
0
20
40
60
80
100
120
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160
spaceheating
waterheating
appliances lighting spacecooling
source: NRCan Energy Use Data Handbook 2010 and Energy Efficiency Trends in Canada 1990-2009, graphic: Nem
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From Pioneer...
Image Source: PHI
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Chapter #: Chapter Title
...to Whole Communities...
700 apartments560 student apartments7,000 workplaces21,000 m2 Laboratory
KindergartenSupermarketCinema
To be completed in 2020
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Chapter #: Chapter Title
Affordable housing.
before refurbishment ...
... After refurbishment with
PH-components
1950s 2005
Image Source: PHI
...to deep energy retrofits...
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What is a Passive House
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26-story Residential Building for
Cornell University
now completed on Roosevelt Island in New York City
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Predicted vs Actual Performance
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What is a Passive House?
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What is a Passive House?
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Walls
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Windows
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Sub-grade
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Mechanical
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Energy Model
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TEDI & PER
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Project Delivery
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Project Delivery
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Procurement
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• Represents most stringent building energy standard in the world.
• Standard focuses on conservation and resiliency; Canadian roots.
• Design leverages one of Alberta’s most abundant resources.
• Elegantly simply design requirements; providing comfort, health & security.
• Allows for a great deal of flexibility in design, presents challenging targets.
• Relatively unknown building standard in Canada.
• Project - highlights building code and bylaw challenges to innovation.
• Introduces alternative building materials and mechanical systems.
• Provides educational opportunities, creates awareness.
• It’s just plain fun…..
Symons Gate Passive House
Why ‘Passivhaus’ standard?
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• 2013 Passive House built by
Bernhardt Passive Homes in
Victoria was recently certified
by the Passivhaus Institute
• 1977 Conservation House built
in Regina, Saskatchewan.
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• 15 kWh/m2/a or 10 W/m2 heating during worst case scenario
• 0.6 ACH @ +- 50 Pa (8-10 m/s wind)
• 120 kWh/m2/a primary energy usage
• Excess temperature frequency <10%
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50
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Stock Average New 2010 Energy Star Passive House
kWh
/m2/y
ear
Typical Heating Energy Intensity for Canadian Housing
What makes a Passive House?
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BicTM Lighters…
• A tea light gives of 30W of heat
• You have a 30m2 room
• How many tea lights to heat a passive
house at 10W/m2?
•10𝑊
𝑚2 ∗ 30𝑚2 ∗1 𝑇𝑒𝑎 𝐿𝑖𝑔ℎ𝑡
30𝑊= 10 𝑇𝑒𝑎 𝐿𝑖𝑔ℎ𝑡𝑠
• A Bic lighter produces 70-80 Watts. You
would 3.75 – 4.3 Bic lighters.
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Symons Gate
Passivhaus- Overview
• Calgary, AB – 274 Sage Bluff DR
NW
• Single Family – 2,435 SQF
• Structure – Cross Laminated
Timber
• Wall Assembly – Open Diffusion
• Insulation – Wood Fibre Board
• Walls (Effective) – R45
• Roof (Effective) – R51
• Basement (Effective) – R54
• Windows – Uw - 0.125 (R 8.0)
• HVAC - Earth-tube
• HVAC– HRV / Active By-pass
• Air Tightness – 0.6 ACH
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Symons Gate Passive
House - Challenges
• ~200 – SQF Differential
• Front Attached House - Glazing
• Alternative Solutions
(Engineering)
• Lot Availability / Orientation
• Glazing Restrictions / Sprinkler
• Architectural Requirements
• Product / Material Availability
• Consumer Acceptance – Gas
• Skills & Capabilities
• Experience / Case Studies
• Perception – Air Quality
• Additional Upfront Costs
• How much will I save?
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ONE TeamCalgary Homes, Brookfield Residential
Symons Gate - Passive
House
Doug Owens – Senior Director Strategic Development and Regulatory AffairsMarcello Garcea – Project ManagerJordan Revak – Site SuperintendentDean Guidolin – Lead, Architectural Designer
Brookfield Residential Properties4906 Richard Rd. SWCalgary, AB, T3E [email protected]