Trethewey Avenue Supportive Housing Complex

Additional Info

Award Winner : Nomodic Modular Structures Inc.

Architectural Excellence : This permanent modular building is three storeys in height and is comprised of 11 modules per storey for a total of 33 modules. The modules were frameless units of wood structure, ranging in size from 8’ x 47’ (3 modules) to 12’ x 60’ (30 modules). It features 46 self-contained suites: 5 designed specifically for people with disabilities, which are approximately 350 ft2 and include a bathroom (complete with sink, toilet and shower), kitchenette, and bedroom/living space. The first storey is comprised of office space, tenant support rooms, commercial kitchen with pantry, common dining room, heat treatment room, storage, and laundry facilities. The building was designed with a common corridor down the middle of the module to maximize space and achieve the greatest number of tenant suites within the footprint. The exterior design has a bold, contemporary aesthetic and uses common commercial and residential building materials such as Hardie Panel, Alucobond panels, and HF-12 panels.

Cost Energy Effectiveness : Naturally, one of the largest cost-effective methods in modular construction is the ability to reduce onsite construction time and overall construction schedule. Nomodic took advantage of this, completing the excavation, underground utilities, and foundation while the modules were being fabricated. Approximately 80% of the building’s electrical, plumbing, sprinklers, HVAC, and carpentry were completed in the manufacturing facility, where trade labour rates are less than rates in the field. In a further effort to reduce costs, Nomodic engaged a sprinkler contractor who was able to utilize local resources at both the manufacturing facility (Manitoba) and site (B.C.), which also resulted in no scope gaps. In addition, the building’s adherence to the B.C. Energy Step Code meant that long-term value has been delivered to the client in the form of energy savings.

Design Firm Name : Douglas Sollows Architect

Engineering Firm Name : ITEC Systems Design Ltd. (Mechanical Engineer)

Green Building Description : As mentioned above, the building achieved and exceeded B.C. Energy Step Code 3, meaning it was modelled and built to be 50% more energy efficient than what is currently mandated by Building Code. This was achieved by the reduction of thermal bridging, particularly in the building envelope, by using exterior insulation and triple-glazed windows. The building’s orientation allows morning and afternoon sunlight to enter the building; with the use of triple-glazed windows, this allows winter heat from the sun to pass through and block 87% of unwanted UV rays, reducing both heating/cooling loads and electrical lighting demand. Indoor air quality was achieved through low-VOC products/materials (e.g. paints, flooring). All lighting in the building is LED, appliances are energy star rated, and the use of occupancy sensors in common areas minimizes energy usage. Finally, the building’s Step Code 3 rating means it has met or exceeded envelope and interior partition air leakage requirements.

Installer Firm Name : Nomodic

Occupied Date : 11/27/2019

Owner Firm Name : BC Housing

Production Start Date : 2/1/2019

Project Location City : Chilliwack

Project Location State Name : British Columbia

Technical Innovation : The complex incorporates a number of innovative features. For example, the mechanical design of the suites was such that all suite HVAC was completed in the factory, which greatly reduced the amount of HVAC work required on site. This was achieved by installing a LifeBreath HRV and an Innova 2.0 heating/cooling unit in each suite. The Innova 2.0 units were chosen as they offer high performance and do not have an exterior unit, unlike typical PTACs, thereby reducing the amount and size of penetrations which allows a more air-tight building. In addition, the lack of the exterior units means no aesthetic impact to the building. The complex was built in accordance with B.C.’s Energy Step Code, achieving specific energy targets set by BC Housing. This included meeting envelope and interior partition air leakage requirements, and exceeding typical building code with energy-efficient building features including LED lighting, energy star rated appliances, and triple-glazed windows.

Total Square Feet : 2272

Category : Permanent: Multifamily: over 10,000 sq. ft.