Industrialised Deep Retrofit HUB Envelope technologies ConExWall Prefabricated Façade

GENERAL INFORMATION

ConExWall Prefabricated Façade

Technology year: 2025

Technology maturity level: Pilot project

Manufacturer: The module has been manufactured by RDRymarov and developed by SPF Institute for Solar Technik.

ConExWall solution is a fully prefabricated façade element for serial refurbishment providing:

- Further thermal insulating reducing space heating demand

- Façade heating and/or cooling (optional), which eliminates the need for underfloor heating

- Building integrated photovoltaics (BIPV) and/or solar thermal collectors (optional) increasing renewable energy production and autarky

- Ventilation with heat recovery (optional) reducing energy consumption and increasing comfort

The prefabricated module integrates a low temperature exterior hydronic wall heating system between the existing wall layer and the new added external envelope, a decentralised ventilation system with heat recovery and optionally PV-modules.

The panel has been designed to match nZEB acoording to national directives

installation prefabricated facade retrofit

Envelope technology

Prefabricated envelope technology

Panel in timber frame
Insulation in mineral wool
λ = n/a W/m² K

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prefabricated-panel-manufacturing-kasava

External finishing

Timber cladding

Ventilated cavity

Main structure

Timber frame

Insulation

Mineral wool

Compensation layer

Air

Anchoring element

L-shape steel anchors

Joints

n/a

Tolerances

n/a cm

Circularity

Embracing circularity in building renovation can lead to more sustainable and environmentally friendly outcomes. This means prioritizing the reuse and recycling of building materials, for example by implementing design strategies to facilitate the disassembly and reuse.

Ease of disassembly (system level)

100%
Ease of reuse

n/a
Ease of recycling (component level)

78%

Materials origin

n/a
Material use efficiency / Waste produced during production of the technol

n/a
Circularity certification

n/a

General Data

Max panel width

6.95 m

Max panel height

3.43 m

Panel Weight

0.98 kN/m²

Panel thickness

29.7 cm

Performance

We measure the effectiveness and efficiency of the building's prefabricated panels in terms of U-value, Acoustic resistance, Fire resistance, Seismic, Water/Air tightness.

U-value: 0.16 – 0.21 W/m²K

U-value

0.16 – 0.21 W/m²K

Acoustic resistance

Yes

Fire resistance

Yes

Seismic

n/a

Water/Air tightness

Yes

Certifications and tests

With certification and testing, the renovation project can achieve a higher level of quality, safety, and sustainability.

Simulation campaign

n/a

Tests

n/a

CE mark / type of certificate

n/a

Explore prefabricated integrated technologies

The prefabricated panels used are timber-frame façade elements designed for a quick and efficient installation. Each panel is custom-sized to fit the building’s geometry. These panels integrate multiple layers, including thermal insulation, smart glazing windows, and ventilation units, enabling a high-performance envelope. The panels are engineered for quick on-site assembly, up to 180 m² per day, and are anchored to the existing structure after partial removal of the outer brick layer.

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Timber Prefabricated Multifunctional Façade

The façade elements are made of a solid wood exterior cladding based on slow-grown thermo-treated pine (heat treatment to improve timber stability). In the elements, both the OSB board on the inner surface and the outside wind barrier provide airtight layers within the building envelope.New energy efficient windows are integrated in the façade.

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Multifunctional Timber Prefabricated Façade

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