RU

Contact
Visualisation: the hub building with timber cladding and roof solar panels, cycle path — start-up hub, Trikala
Street viewTeam CRE8

Passive House

Reconstruction to the Passive House standard · 1,004.7 m²

Building type
Office building
Location
Trikala, Greece
Area
1,004.7 m²
Status
1st place in the competition · implementation

Selected works 01Passive House

Elizabeth Iosifidi

A project to reconstruct an existing agricultural warehouse, changing its use and converting it into a multifunctional office centre for start-ups and coworking. The architectural concept is based on a flexible layout, natural light and the integration of the building into the urban environment.

Project information

Building type
Office building
Location
Trikala, Greece
Area
1,004.7 m²
Year
2021
Status
1st place in the competition · implementation
Award
1st prize
My role
Architectural engineer
Team
CRE8, five members
Software
PHPP, AutoCAD
Key figures
Heating demand 9 kWh/(m²a)Heating load 10 W/m²PHPP check: EnerPHit Classic
Exploded axonometric of the building with the five Passive House principles: ventilation with heat recovery, airtightness, insulation, windows, thermal-bridge-free design — start-up hub, Trikala
Exploded diagram of the building and Passive House principles Open full size
Dimensioned floor plan with section marks: workspaces along the facade, a brainstorming zone, the HUB exhibition, an open amphitheatre, a presentation area, a kitchen, the main office — start-up hub, Trikala
Floor plan Open full size
Longitudinal section A–A: toilets, work areas, meeting rooms, the exhibition and the open amphitheatre, level marks — start-up hub, Trikala
Section A–A Open full size
Visualisation: the former warehouse with timber cladding and HUB lettering on the gable, a cycle path with cyclists and pedestrians, a hill town in the background — start-up hub, Trikala
Exterior visualisation
Elevation B: a long facade with two rows of windows and level marks — start-up hub, Trikala
Elevation B Open full size
Elevation A: roof lights, a colonnaded gallery and a glazed entrance, level marks — start-up hub, Trikala
Elevation A Open full size

The project covers the architectural design of the building and its facades, as well as landscaping of the surrounding site. The architectural and engineering solutions are based on Passive House principles aimed at improving the building’s energy efficiency. They include a ventilated facade system, a continuous thermal insulation envelope and airtight sealing of the building envelope. Particular attention was paid to the thermal design of junction details to reduce heat loss through thermal bridges. Ventilation with heat recovery, the use of natural light and passive cooling strategies are also provided.

Axonometric of the ventilated timber-slat facade on the existing wall, a close-up of the MFT-FOX HT-L bracket and its isothermal map; English labels — start-up hub, Trikala
Ventilated facade: thermal-bridge-free brackets Open full size
Wall sections at the window head and sill: insulation, ventilation gap, timber cladding, timber shade, thermal-bridge-free bracket, airtightness tape; a key section of the open office on the right; English labels — start-up hub, Trikala
Window opening details in the ventilated facade Open full size
Elevation D with the pergola, section B–B and an axonometric of the HUB lettering fixings — start-up hub, Trikala
Elevation D and section B–B Open full size
Sheet G1: master plan and pergola details, 1:200 and 1:50 — start-up hub, Trikala
Sheet G1: master plan and pergola details, 1:200 + 1:50 Open full size
Master plan with the surrounding site, 1:200 — start-up hub, Trikala
Master plan, 1:200 Open full size

Outcome

1st prize, ΕΙΠΑΚ Architectural Student Competition 2021 (Hellenic Passive House Institute).

Pergola details: plan, connection to the existing wall at 4 m and to the ground, axonometric, 1:50 — start-up hub, Trikala
Pergola: plan, connection details, axonometric, 1:50 Open full size
Eave detail with ventilated facade: asphalt shingles on OSB, 200 mm polystyrene insulation, reinforced concrete beam, brick wall, thermal-bridge-free brackets, ventilation gap, timber cladding, rain gutter — start-up hub, Trikala
Eave detail with ventilated facade Open full size
Thermal-bridge model of the eave: temperature field in section, materials and boundary conditions, Ψ = 0.015 W/(m·K) — start-up hub, Trikala
Thermal-bridge model of the eave, Ψ = 0.015 W/(m·K) Open full size
PHPP results table in Greek: treated floor area, heating, cooling, airtightness, primary energy and the EnerPHit criteria check — start-up hub, Trikala
PHPP results Open full size
Visualisation: facade with HUB lettering, pergola and cycle path — start-up hub, Trikala
General view
Visualisation: timber pergola between the two buildings, steps and lawn — start-up hub, Trikala
Pergola between the buildings
Visualisation of the open-plan office: desks, plants, TEAM lettering on the wall — start-up hub, Trikala
Open-plan office

Details

A raised plaza (+0.85 m) and a timber pergola link the hub to the neighbouring e-Trikala building. Inside: a shared kitchen, a projection room, an amphitheatre, a Passive House exhibition and coworking. PHPP energy model: ventilated facade, triple glazing (Uw 0.78), thermal-bridge analysis, mechanical ventilation with a subsoil heat exchanger; result: EnerPHit Classic.

More projects