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 building refurbishment.

The panel has been designed to match nZEB according to national directives.

installation prefabricated facade retrofit

Envelope technology

Prefabricated envelope technology

The panel provides:

- 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.

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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

See the prefabricated panel applied in a real building

building after industrialised retrofit kasasva

The building dates back to the 1946–1950, and consists of two floors with one flat each and a cellar/garage underground.The building area totals 287 m² (193.5 m² floor area + 93.5 m² underground). The 1st-floor flat is 81.2 m², the 2nd-floor flat 50 m² + 8.8 m² balcony.The building is built with brick walls, Hurdis ceilings, wooden purlin roof with sheet metal, no wall insulation, plastic windows (2013), and ceramic/wood flooring.

October 31, 2025

Kasava Building Retrofit

Czech Republic

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