NORTH END LANDING + JAMES NORTH BAPTIST CHURCH – Hamilton, ON

Mixed Use Award (Sponsored by Enbridge Gas Inc.)

Invizij Architects Inc.

Jury Comments: That this underused brownfield site has been transformed into a valuable community asset including Passive House certified social housing, a new church and a food bank, is admirable and (we believe) widely replicable. The orientation of the church kitchen and café to the street, and the uplifting character of the day-lit atrium, speak to the sensitivity of program organization.

A shared vision of what makes a ‘home’ brought together the James North Church community and Indwell, a non-profit housing provider, to redevelop an under-utilized urban site in Hamilton, ON. The project remediated and transformed a run-down commercial plaza and parking lot, replacing it with a four-storey, mixed-use building, that includes space for the growing congregation with three storeys of affordable housing above. The project has quickly become a neighbourhood landmark and a social hub for the community.

The contemporary church focuses on neighbourly hospitality and sports ministries, and the new building also provides 45 affordable apartments for households, including seniors and low income families facing displacement from an area undergoing rapid gentrification.

The building is one of the largest mixed use projects in Canada designed to the Passive House standard. Its low energy requirements reduce utility costs for tenants, while the energy recovery ventilators improve indoor environmental quality through controlled supply and filtration of fresh air.

Sobotec Ltd. supplied and installed the complete rain screen wall assembly, including A/V membrane, thermally-broken sub-framing, insulation and aluminum composite panels for the project. The brick cladding was supplied by Thames Valley Brick & Tile.

An atrium cuts through the centre of the church facilities, its large Kalwall Skyroof® flooding the interior with natural light.

PROJECT CREDITS

  • Architect  Invizij Architects Inc.
  • Owner/Developer  Indwell
  • General Contractor  Schilthuis Construction
  • Landscape Architect  N.J. Sinclair
  • Civil Engineer  Walterfedy
  • Mechanical and Electrical Engineer  CK Engineering Inc.
  • Structural engineer  Kalos Engineering Inc.
  • Passive House Standard Consultant  Peel Passive House
  • Photos  Industryous Photography

PROJECT PERFORMANCE

  • Energy intensity (building and process energy) = 45.1kwhr/m2/year
  • Energy intensity reduction relative to reference building under mnecb 2015 + sb10 = 73.5 %

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PROTOTYPE LANEWAY HOUSING – University of Toronto, ON

Residential (Small) Award

BSN Architects

Jury Comment: The municipality, the University of Toronto and the design team are all to be commended for attempting this kind of gentle densification in a heritage district. The success of the project enables faculty, staff and other potential residents to benefit from the transportation, commercial and cultural infrastructure already in place in this neighbourhood. The resulting livable lane environment and the remarkable achievement of Passive House performance in such a tight urban context, takes Toronto’s laneway housing to the next level.

These prototypes are the vanguard of 40 laneway and infill homes proposed for the Huron Sussex Neighbourhood, a historic precinct adjacent to the University of Toronto’s downtown campus. The project advances urban intensification in a location well served by public transit and existing municipal infrastructure, while revitalizing and helping to sustain its immediate heritage context.

Mandated to deliver affordable, sustainable housing for family living and co-habitation, the project utilizes a prefabrication approach to reduce community impacts during construction and enhance performance outcomes.

The three prototypes include: 3 bedroom + 2 study (2,100 gross sq.ft.), 2 bedroom + study, (1,100 gross sq.ft.), and 1 bedroom + study, (900 gross sq.ft.). Sympathetic to scale, massing, and neighbourhood context, the prototypes provide ‘accessibility through proximity’ and are clustered to create a shared outdoor courtyard and to initiate a ‘Living Laneway’ concept with homes accessed from the lane.

Designed using Passive House (PH) principles and all-wood construction, the project optimizes prefabrication and on-site assembly methods and utilizes PH-certified wall panels (R-45) with factory- installed windows (R-7), structural insulated panels (R-54) for the roof, and a shallow super-insulated GEO-Passive slab foundation system (R-24) that minimizes site operations.

Detail of Passive House certified window and thermally-treated ash cladding. Supplied by CFP Woods,  the ash cladding exhibits numerous grain patterns while displaying the natural beauty of its rich brown colour tones. Left to weather naturally, it will turn a beautiful patina grey.

Guelph Solar installed LG 365 Watt solar panels for the U of T Laneway Houses.

Legalett provided three engineered GEO-Passive Slabs with ThermaSill PH thresholds, as well as sub grade preparation supervision for this challenging high density urban fill site with zero clearance lot lines.

PROJECT PERFORMANCE

  • Energy intensity (building and process energy) = 47.3KWhr/m2/year
  • Energy intensity reduction relative to reference building under ASHRAE 90.1 = 54%
  • Water consumption from municipal sources = 44,880 litres/occupant/year
  • Reduction in water consumption relative to reference building under LEED = 51%
  • Regional materials (800km radius) by value = 15.25%
  • Construction waste diverted from landfill = 85%

PROJECT CREDITS

  • Architect  BSN Architects
  • Owner/Developer  University of Toronto
  • General Contractor  Index Construction
  • Civil Engineer  MTE Consultants
  • Electrical Engineer  Runge Engineering
  • Structural and Mechanical Engineer  Local Impact Design
  • Photos  Tom Arban Photography

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DISTRICT ENERGY PLANT – University of Victoria, Victoria, BC

Commercial/Industrial (Small) Award

DIALOG

Jury Comment: Rehabilitating and repurposing an existing parking lot on the university campus and simultaneously reducing overall campus energy consumption by 10%, this project provides an important showcase for the University’s energy reduction strategy. By engaging students through visibility and transparency, it creates a sense of connection and elevates concern for the critical infrastructure that supports all of our communities. 

The new University of Victoria district energy plant (DEP) replaces and centralizes three outdated boilers and the supporting infrastructure, which were scattered across campus. It provides increased capacity to the campus heating system, and services 32 buildings. The DEP was built on an existing parking lot in the southwest corner of the campus, adjacent to a forest, publicly-accessible botanical gardens, and an interfaith chapel.

This site had been identified as the most appropriate location for a number of reasons during an earlier campus planning exercise. 

The use of the brownfield site minimized the impact on campus ecosystems and also provided adequate space for future expansion should the university decide to increase the DEP’s capacity. This location also makes it easy to connect to nearby buildings not initially part of the district energy loop. In addition, it is directly linked to municipal streets, which allows service vehicles to avoid circumnavigation of the campus ring road.

Massing for the building was driven by a combination of required equipment height clearances (which in turn enhance cross-ventilation and natural ventilation) and a desire to increase visibility of the plant’s inner workings for the public.

The plant has a full output potential of 27.5 MW of thermal heat – enough for 2,000 single-family homes. The plant and network provide 10% energy savings annually, and greenhouse gas (GHG) reductions of 6,500 tonnes/year.

PROJECT CREDITS

  • Owner/Developer  University of Victoria
  • Architect  DIALOG 
  • General Contractor  Farmer Construction
  • Landscape Architect  HAPA Collaborative
  • Civil Engineer  Westbrook Consulting Ltd.
  • Electrical engineer  AES Engineering
  • Mechanical Engineer  FVB Energy Inc.
  • Structural Engineer  RJC Engineering
  • Commissioning Agent  C E S Engineering
  • Photos  Martin Tessler

PROJECT PERFORMANCE

  • Energy intensity (building and process energy) = 135KWhr/m2/year
  • Energy intensity reduction relative to reference building under ASHRAE 90.1 2007 = 72%
  • Water consumption from municipal sources = 40,970 litres/occupant/year
  • Reduction in water consumption relative to reference building under LEED = 33%
  • Recycled material content by value = 16%
  • Construction waste diverted from landfill = 95.8%

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GRAND THÉÂTRE DE QUÉBEC: CONSERVATION & REHABILITATION – Quebec City, QC

Existing Building Upgrade Award

Lemay and Atelier 21

Jury Comment: A sophisticated resolution of what had originally seemed an insurmountable technical challenge; that of conserving a deteriorating Brutalist concrete masterpiece and the built-in sculptures it contains. The glass veil preserves the character of the original building with a lightness of touch that is both respectful and refreshing. Given the nationwide challenge we face in remediating and reusing so many buildings of this type, this project inspires us to embrace the challenge and simultaneously enrich the urban narrative.

Famed for its brutalist architecture by Victor Prus and entwined with its historic, sculptural mural by Jordi Bonet, the Grand Théâtre de Québec is a prized cultural icon for all Québecers, inaugurated for the Confederation Centennial in 1971. Designed by prominent architect Victor Prus in the Brutalist style, prefabricated concrete interior and exterior walls are the defining architectural elements of the building. In addition, nearly 60% of the interior is covered with an integrated mural by sculptor Jordi Bonet

The existing prefabricated concrete envelope had major condensation and rust issues. The fragility of the mural and the inaccessibility of the concrete anchors required a radical solution. Adding a new glass envelope stopped the deterioration and significantly extended the service life.

Requiring only a prefabricated steel structure and glass infill panels, the solution minimized the use of new materials, left the existing envelope untouched and avoided invasive interior work. Cleverly resting on the existing foundations, the steel framework reduced the use of concrete and site excavation.

The new glass envelope provides and innovative solution from an architectural, structural and mechanical point of view. It also dealt with logistical constraints, including the requirement that the theatre maintain its daytime and evening operations during construction. Noise could not impact rehearsals or performances and construction activity could not hinder building access. In addition, as the mural was connected to the exterior concrete panels, vibration and other potential impacts on the envelope had to be avoided. An integrated design and delivery process was essential to the success of the project.

PROJECT CREDIT

  • Architect  Lemay
  • Associate Architect  Atelier 21
  • Owner/Developer  Le Grand Théâtre de Québec
  • Construction Manager  Pomerleau
  • Landscape Architect  Lemay + Atelier 21
  • Civil Engineer  WSP
  • Electrical, Mechanical, Structural Engineer  WSP
  • Commissioning Agent  Ambioner
  • Other  ELEMA, Metal Presto, Vitrerie Laberge
  • Photos  Stéphane Groleau
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PROJECT PERFORMANCE

  • Recycled materials  The steel used for the new exterior structure has 25% recycled content.
  • Energy Intensity  With the addition of the tempered double envelope, the energy intensity increased from 235.9 KWh/m2/year to 241.6 KWh/m2/year, a 2.39% increase.   
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UBC OKANAGAN, SKEENA RESIDENCE – University of British Columbia Okanagan, Kelowna BC

Residential (Large) Award (Sponsored by Inline Fiberglass)

Public Architecture + Communication

Jury Comments: Not only does Passive House certification take this building beyond Code in terms of energy performance; it achieves this while still addressing issues of context and community. The relationship to its surroundings is carefully considered, as is the design an organization of its common spaces. Making successive cohorts of students aware of the superior quality of a Passive House environment – and so raising their expectations, may be the most significant contribution of this project.

This new Passive House certified residence accommodates 220 students within five floors of light wood frame construction, above a concrete ground floor that contains common areas, amenity and service spaces. The building completes an ensemble of residence buildings encircling the central green space on campus – known as Commons Field.

The five identical residential floors include shared bathrooms flanked by two bedrooms. This layout allows space for quiet study when required. Additionally, each floor contains both a study lounge and a house lounge with views of the surrounding mountains, the latter equipped with a kitchenette, dining table and couches. Locating these spaces at opposite ends of the floor ensures that quiet study is not interrupted by noise from the social home lounge.

The first level includes a large laundry room adjacent to the student lounge. Separated by a glass wall, the relationship between the two spaces encourages chance meetings and spontaneous gatherings. Moreover, the transparency offers passive surveillance, or visibility that promotes a sense of security.

The Passive House goal of minimal energy use for heating and cooling informed many design choices. Given that irregular forms with multiple indentations and corners, or projections such as steps, overhangs, or canopies create challenges for insulation, airtightness and the elimination of thermal bridging, a simple and efficient rectilinear volume performs best.

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A BLANKET OF WARMTH – Star Blanket Cree Nation, SK

Technical Award

MacPherson Engineering Inc.

Jury Comment: “This simple, affordable and highly transferable design solution to the substandard indoor environmental quality in much of the First Nations housing stock across the country, is notable for its collaborative approach and the inspiration it takes from traditional Aboriginal structures. The transition from forced air to radiant heat brings multiple benefits, with a payback period of less than 10 years.”

To address the mould issue, MacPherson Engineering partnered with universities, industry leaders, psychologists, Knowledge Keepers, engineers, and businesses. The project needed to be affordable, ecofriendly, incorporate Indigenous knowledge, and create positive social values of inclusion, cooperation, and respect.

The project broadened responsible consumption and production with the installation of the hybrid heating system on 75% of the concrete perimeter basement walls.

Aligning with the United Nations goals, the retrofitting of conventional HVAC with a system that was simple to install and operate improved efficiency and sustainability.

After installation, a comparative study was done, proving that radiant heating is a feasible solution to address air quality, thermal comfort, and energy use and humidity problems, performing much better than traditional HVAC systems. 

PROJECT CREDITS

  • Owner / Developer  Star Blanket Cree Nation
  • Mechanical Engineer  MacPherson Engineering Inc.
  • Plumbing and Heating  Anaquod Plumbing and Heating
  • Construction  J McNaughton Construction
  • University of Regina  Dr Arm Henni & Capstone students
  • Photos  Aura Lee MacPherson

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BARRETT CENTRE FOR TECHNOLOGY INNOVATION – Humber College, Toronto, ON

Institutional (Large) Award

Perkins&Will

Jury Comment: This project is significant for its innovative use of parametric software; not for abstract form-making, but for taking a first principles approach to passive design.  In many cases, the LEED Platinum and Net Zero ambitions for the project would have resulted in an uninspiring box-like form. Instead, the result can be considered a kind of ‘place and performance-based regionalism’. The flexible arrangement of learning spaces, the bright and colourful interiors and park-like accessible roof all enrich the experience of this building, within its bland suburban context.

This net-zero energy building is a first for Humber College and is targetting LEED Platinum certification. The facility sets a precedent for innovation in automated manufacturing and human-centred solutions, omitting classrooms entirely. Instead, flexible project modules provide space for fabrication and technical zones for students, faculty, and industry to explore, research and fabricate together.

The experience of the BCTI begins the moment one steps onto campus. The building acts as a dramatic portal; its dynamic glazed lobby and cantilevered form creating a new focus for student life. The BCTI features active and social spaces like interactive demonstration areas and flexible open-concept gathering areas.

These spaces are designed to enable a free exchange of information and ideas to inspire an informal and active learning experience. The central atrium offers an immediate connection to the outdoors through views to surrounding landscaped spaces and campus and ample access to natural light. The building achieves net zero energy through a conservation first approach, driven by parametric analysis of solar radiation, daylight penetration, natural ventilation and envelope optimization, supplemented by a 700 kW solar PV array located on an adjacent parking structure. Beyond this, the project embodies a holistic approach to sustainability, in alignment with the College’s values: green rooftop teaching spaces, urban agriculture pods, and visible high-performance building systems that foster a culture of environmental stewardship as a vital aspect of entrepreneurial innovation. Materials have been chosen for low environmental impact, occupant health and wellbeing, durability and climate change resilience.

The parametric modelling analysis optimized both the massing and envelope resulting in a highly insulated façade, concrete floors acting as thermal mass in the lobby, and also influenced the distinctive form of the building. A window-to-wall ratio of 40% emphasizes glazing where daylight is beneficial to support occupant health, particular in active learning spaces, collaboration zones and circulation paths. Brise Soleil shading devices on the south façade mitigate heat gain and glare, while a thermal chimney enables natural ventilation during more temperate seasons.

The partly vegetated roof contributes to stormwater retention. Around the building exterior the ACO KlassikDrain handles stormwater collection in the form of an aesthetically pleasing linear trench drain which helps to maintain smooth surface grading while preserving building accessibility. With proven performance in winter conditions, it also provides LEED credit eligibility for regional manufacturing.

A mix of cladding was used on the project. CBC Specialty Metals supplied through Bothwell-Accurate Co. Inc the VMZINC® ANTHRA-ZINC® STRAT Interlocking Panels, having expected lifespan of over 100 years. Quarried in Ontario, Adair natural limestone by Arriscraft, used around the base of the building, is unique in the industry offering unparalleled distinction and longevity for commercial projects.

The building achieves net zero energy through a conservation first approach, driven by analysis of solar radiation, daylight penetration, natural ventilation and envelope optimization. Lochinvar by Aqua-Tech supplied two Crest Condensing Boilers Model FBN1751 for space heating and domestic hot water, and a GVC65JR Hot Water Generator c/w Double Wall Tube Bundle for indirect domestic hot water demand.

PROJECT CREDITS

  • Architect  Perkins+Will
  • Owner/Developer  Humber College
  • General Contractor  Bird Construction
  • Landscape Architect Brodie And Associates
  • Civil Engineer  ExP
  • Electrical/ Mechanical Engineer  MCW Consultants
  • Structural engineer  Thornton Tomasetti
  • LEED Consultant  Fluent
  • Building Envelope  RDH
  • Acoustics, Noise and Vibration  Aerocoustics
  • Accessibility  Designable Environments
  • Building Code  LRI
  • Photos: Scott Norsworthy (photo 4), Tom Arban Photography (photos 1, 3 and 5), Joe Markovic Photography (photo 2)

PROJECT PERFORMANCE

  • Energy intensity (building and process energy) = 99.8 KWhr/m2/year
  • Energy intensity reduction relative to reference building =
  • 100% (all energy supplied by renewables)
  • Water consumption from municipal sources = 1,559 litres/occupant/year
  • Reduction in water consumption relative to reference building
  • under LEED = 40%
  • Recycled material content by value = 24%
  • Regional materials (800km radius) by value = 34%
  • Construction waste diverted from landfill = 85.3%
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80 ATLANTIC – Toronto, ON

Commercial/Industrial (Large) Award (sponsored by Mitsubishi Electric Sales Canada Inc.)

BPD Quadrangle

Jury Comment: In a market where commercial buildings of this size and type were once common, this project sends a signal that mass wood construction is once again a viable and highly desirable option. The warmth of the exposed wood and high quality of interior daylighting contribute to a beautiful working environment. With its glass exterior, the building makes a striking and poignant complement to its historic Brick and beam neighbor, reinforcing the idea that both aesthetically and technically, mass wood can be part of a more sustainable future.

Ontario’s first mass timber commercial building in a generation, 80 Atlantic sets an important precedent for the region and for this market sector. Located next to 60 Atlantic, a warehouse renovation and expansion by the same architect, the two projects now form the nucleus of a creative hub that is developing in Toronto’s Liberty Village.

80 Atlantic combines four storeys of office space, constructed in Canadian-sourced mass timber, over a single-storey retail podium, constructed in concrete.  The project goals were to design an office building that would build on the success of 60 Atlantic, demonstrate leadership in the rapidly developing field of mass timber, and to attract creative tenants. Motivated by recent changes to the Ontario Building Code allowing for commercial wood buildings up to six storeys, the team introduced a new ‘Post and Beam 2.0’ typology.

80 Atlantic mixes the warmth, beauty and large, open spans of a converted industrial building with the environmental and technological advantages of a Class-A office building, including airtight construction, energy efficiency, good acoustics and built-in technologies.

The project offers the materially raw and easily reconfigurable environment popular with new economy tenants, but without its deficits: the dust, draughts, poor acoustics, energy inefficiency, and the obtrusively placed pipes and cables. Punched windows echo the architecture of surrounding heritage buildings and maintain an overall window-to-wall ratio of 40%.

A south-facing curtain wall mitigates the building’s mass and scale, while showcasing the mass timber interiors to passersby. Rather than being exposed within the occupied spaces, HVAC ducts, integrated into the floor plenum, keep the air moving and temperatures comfortable. The electrical and telecommunications systems are also below the floor, resulting in a highly adaptable and uncluttered space. Unobscured by ducts or bulkheads, the natural wood columns and ceilings are on display throughout.

Building users have more control over their environment than in a typical office setting, thanks to operable windows which are easily accessible to 30% of occupants and interior shading control through user operated blinds.

Significant energy savings stem from an energy recovery ventilator with 88% sensible recovery serving the rooftop units and condensing boilers with a thermal seasonal efficiency of 90%. High-performance LED lighting and occupancy sensors reduce the energy required to light the space by more than 50% compared to the code referenced standard.

The buff-coloured surface of the Ceramitex® rainscreen and the scale of the punched windows honour the industrial brick vernacular of the area. The 19,455 sq ft. of thin sintered ceramic is manufactured with the fiberglass-reinforced mesh backing that is adhered to the Elemex® Unity® Attachment Technology, making it a durable and versatile choice.

PROJECT PERFORMANCE

  • Energy intensity (building) = 104KWhr/m2/year
  • Energy intensity (process) = 46KWhr/m2/year
  • Energy intensity reduction relative to reference building
  • under ASHRAE 90.1 – 2010 = 32.3%
  • Water consumption from municipal sources = 4,712 litres/occupant/year
  • Reduction in water consumption relative to reference building under LEED = 23%

PROJECT CREDITS

  • Owner  Hullmark Developments Ltd and BentallGreenOak
  • Architect  BDP Quadrangle
  • General Contractor  Eastern Construction
  • Landscape Architect  Vertechs Design Inc.
  • Civil Engineer  R V Anderson Associates
  • Electrical and Mechanical Engineers  Smith + Andersen
  • Structural Engineer  RJC Engineers
  • Commissioning Agent  RWDI
  • Building Envelope Consultant  RDH Building Science 
  • Heritage Envelope Consultant  Philip Goldsmith Architect
  • Ceramitex® Facade Installer  Ontario Panelization
  • Ceramitex® Facade Manufacturer  Elemex Architectural Facade Systems
  • Photos  Doublespace Photography and Bob Gundu
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Édifice Wilder Espace Danse

Double-envelope façade wraps restored heritage building

By Patrick Bernier, Maude Pintal and Gabriel Tourangeau

Located in the Quartier des Spectacles, Montreal’s entertainment district, the Édifice Wilder – Espace Danse brings together production and performance spaces for Les Grands Ballets Canadiens, the École de Danse Contemporaine de Montréal, Tangente, and the Agora de la Danse. The project also incorporates offices for the Ministry of Culture and Communications, and the Quebec Council of Arts and Letters.

With a total area of almost 222,000m2 (235,000sf) the project includes the renovation and expansion of the 10-storey Wilder Building, a heritage designated former furniture factory and warehouse, dating from 1918. 

The program is arranged over all 10 floors: one basement level and nine floors above grade. The basement contains a Creation Studio, a Laboratory Studio and bicycle parking; the ground floor includes the main entrance hall, ticket office and a café and other retail spaces; while the upper floors contain rehearsal, workshop, studio, production, broadcasting and other specialized and support spaces as required by each of the organizations occupying the building.

As architects, we believe that sustainable design must embrace the ecological, economic, and social circumstances of a project and not be solely focused on energy performance to the exclusion of these other considerations. For that reason, the choice was made to preserve a vintage building, not for its economic value, but rather as a commitment to the preservation of architectural and cultural heritage and the conservation of resources. An integrated design approach was used to ensure a balance between quantitative environmental objectives, and the equally important, but more qualitative aspects of theatrical performance, luminosity and comfort that were central to the project.

On a tight urban site, one consequence of that decision was the limitations it placed on the implementation of passive design strategies, partly because of the existing solar orientation and partly because of the effect of surrounding buildings. However, the articulation of the façades and openings maximizes access to natural light and passive solar energy in the context of this project.

Rehabilitation of the existing site, previously paved with concrete, was limited to the remediation of contaminated soils and improvements to stormwater management. A portion of the rainwater is collected on a vegetated roof and the remainder is stored in a temporary retention tank before being discharged into the municipal stormwater system. Elsewhere, low-albedo roofing is used to help mitigate the urban heat island effect.

Given its location at the heart of the Quartier des Spectacles, the project was designed to encourage community interaction and enhance the public realm.

This was made possible by the creation of a transparent and inviting double-envelope façade wrapped around the existing building. With its areas of translucent insulation, the façade greatly improves the energy performance of the building. This perimeter zone serves as a billboard – being used for activities, shows, and the projection or display of visual art installations.

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REACH GUESTHOUSE, Prince Edward County, ON

Kearns Mancini Architects – Residential [Small] Award

Jury: A meticulous rehabilitation and upgrade project, that converts a 19th century four-bedroom farmhouse into a 2-bedroom guesthouse, with the original post and beam structure being enclosed in a new high-performance building envelope. The addition of a Passive House standard kitchen, dining and living area to the rear of the house integrates seamlessly with the original, being barely discernible as a new structure. An elegantly detailed project notable for its restraint.

Originally a four bedroom, one‐bathroom house, this 19th century farmhouse was renovated into a two bedroom, two-bathroom house incorporating Passive House EnerPHit standards. Conceptually, a new insulated, airtight structure was built over the existing post and beam house. The rear of the building was substantially rebuilt to accommodate a large, double height kitchen, dining and living space. The new front gable window was intentionally oversized, offering visitors a glimpse of the original arched front gable window within. In future, the house will serve as a guesthouse for a new great house on the same property. In the interim, it serves as a vacation property for visitors to Prince Edward County.

Originally a four bedroom, one-bathroom house, this 19th century farmhouse was renovated into a two bedroom, twobathroom house incorporating Passive House EnerPHit standards. Conceptually, a new insulated, airtight structure was built over the existing post and beam house. The rear of the building was substantially rebuilt to accommodate a large, double height kitchen, dining and living space. The new front gable window was intentionally oversized, offering visitors a glimpse of the original arched front gable window within. In future, the house will serve as a guesthouse for a new great house on the same property. In the interim, it serves as a vacation property for visitors to Prince Edward County.

The original post and beam building was exposed and meticulously cleaned and sealed inside an airtight envelope. Structural Insulated Panels were used as a new building envelope, providing a continuous R43 insulation value in the walls. New roof trusses were added to the existing structure, surmounting the existing roof and walls. This allowed for a 600mm cavity to be filled with new cellulose insulation, providing a continuous insulating value of R67. To achieve an airtight seal, all ground level floorboards were lifted, and an oriented strand board sub-floor installed before the floorboards were re-laid.

  • Project Performance
  • Energy intensity (building and process energy) = 181 KWhr/m²/year
  • Energy intensity reduction relative to reference building = 85%
  • Water consumption from municipal sources = 11,813 litres/occupant/year
  • Reduction in water consumption relative to reference building under LEED = 40%
  • Recycled material content by value = 65%
  • Regional materials (800km radius) by value = 70%
  • Construction waste diverted from landfill = 90%

The renovation and double-height construction at the rear maintains the proportions of the original home. Pre-finished wood siding by Maibec unifies old and new.

A new insulated, airtight structure of structural insulated panels was built over the existing house, and the original post and beam cleaned and left exposed. A Mitsubishi Electric Sales Canada mini-split AC unit and heat pump provides efficient cooling and heating.

  • Project Credits
  • Owner/Developer  Spike Capital Corp.
  • Architect  Kearns Mancini Architects Inc.
  • General Contractor  Neil Thompson Contracting
  • Structural Engineer James Horne
  • Photos  Industryous Photography
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