Prefabricated Multifunctional Façade (PMF) with integrated PV panels as external cladding, mechanical ventilation units with heat recovery hidden in new balconies, air ducts prefabricated within envelope.
The 30cm panels include 14cm mineral wool, waterproof layers, and thermo-treated cladding for superior performance.
Early-Reno tool for PV optimization and Data Handler for tenant interaction.
The dual insulation layers consists of 2cm + 14 cm mineral wool.
The timber structure (C24-classified timber frame with 60x140mm sections) features integrated services, and thermo-treated wood cladding for durability. The ventilated timber cladding system with thermo-treated wood pieces is placed vertically to avoid water concentration in joints. In some sections, timber cladding is replaced by PV panels. Ground floor uses conventional ETICS with EPS insulation instead of PMF due to urban regulations.
The anchoring system is specifically designed to connect PMF loads directly to concrete slab edges. Bottom anchoring transmits vertical loads (weight) while top connections prevent tipping over from horizontal forces. System adapted to building's specific structure to minimize on-site finishing works.
The production off-site took 15 days, the installation 35-38 days.
This solution has been applied to the Coma del Forn demo building, only on 1st-2nd floors due to regulations.
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External finishing
Timber cladding / PV
Ventilated cavity
Yes
Main structure
Timber frame
Insulation
Mineral wool
Compensation layer
No
Anchoring element
Other
Joints
Other
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)
n/a
Ease of reuse
n/a
Ease of recycling (component level)
n/a
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
7 m
Max panel height
3 m
Panel Weight
n/a kN/m²
Panel thickness
30 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 W/m²K
U-value
0.16
Acoustic resistance
n/a
Fire resistance
Euroclass B-s3,d2 requirement for materials up to 3.5m height (Spanish regulation for facades under 18m height). Timber protected with thermo-treatment for improved durability.
Fire resistance
n/a
Water/Air tightness
Target: 27 m³/h·m² air tightness. Special attention required for airtightness at balconies, ventilation ducts, and electrical connections.
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
Multi-family social housing building divided in two blocks due to terrain topography, with 15 apartments total (5 per floor across 3 residential levels plus basement garage).The main façade is east oriented, with unique entrance, while the west façade features open common corridors.The building underwent deep renovation with timber prefabricated multifunctional façade (PMF) on 1st and 2nd floors of east façade, integrating PV panels, ventilation systems, and new balconies.The U-value of the existing façade amounted to 0.64 W/m²K before renovation.After renovation, significant gains were observed:Ground Floor: 0.37 W/m²K (with conventional ETICS)1st-2nd Floor: 0.16 W/m²K (with PMF panels - Prefabricated + Existing wall)
October 08, 2025
Coma del Forn
Spain
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