Building energy efficiency
made simpler with
materials science and
artificial intelligence
.

Building energy efficiency made simpler with materials science and artificial intelligence.

Custom exterior insulation panels from upcycled sawdust, designed with ML thermal analysis for faster, low-carbon facade retrofits and new builds.

Hidden costs of the $13 trillion construction industry.

Hidden costs of the $13 trillion construction industry.

Hidden costs of the $13 trillion construction industry.

36%

of global CO₂ emissions

36%

of global CO₂ emissions

40%

of global waste

40%

of global waste

35%

of energy consumption

35%

of energy consumption

It’s time buildings become part of the solution.

It’s time buildings become part of the solution.

It’s time buildings become
part of the solution.

Material and artificial intelligence combined.

Material and artificial intelligence combined.

Material and artificial intelligence combined.

MATERIAL intelligence (hardware)

NERA Panels

Upcycled sawdust meets bio-based binders. Robotically 3D printed, carbon-storing exterior insulation panels with fully customizable geometry.

~1 m² prefabricated units. For renovation and new build.

ARTIFICIAL intelligence (software)

RetrofitOS by NERA

ML software translates building age, location, typology, climate and regulations into facade retrofit strategies ranked by cost, speed, ROI and carbon.

Available standalone or together with NERA panels.

A circular process to find the exact fit for your building.

A circular process to find the exact fit for your building.

A circular process to find the exact fit for your building.

01

Analysis, design & optimization

Carbon and energy savings report, panel thickness, insulation core, attachment details and a print-ready file.

01

Analysis, design & optimization

Carbon and energy savings report, panel thickness, insulation core, attachment details and a print-ready file.

02

Feedstock

Sawdust sourced from partner sawmills in Catalonia. Local waste becomes a new building resource.

02

Feedstock

Sawdust sourced from partner sawmills in Catalonia. Local waste becomes a new building resource.

03

Material

Bio-based binders and additives transform sawdust into a 3D-printable composite.

03

Material

Bio-based binders and additives transform sawdust into a 3D-printable composite.

04

Fabrication

Robotic off-site 3D printing, with no post-processing. Made to match your building, not "one-size fits all".

04

Fabrication

Robotic off-site 3D printing, with no post-processing. Made to match your building, not "one-size fits all".

05

Assembly

Prefabricated ~1 m² ready-to-install pieces bring precision and predictability to the site.

05

Assembly

Prefabricated ~1 m² ready-to-install pieces bring precision and predictability to the site.

06

Installation

Fixed to the existing wall as exterior insulation. Faster facade renovation while residents stay home.

06

Installation

Fixed to the existing wall as exterior insulation. Faster facade renovation while residents stay home.

Better buildings. Shared benefits.

Better buildings. Shared benefits.

Better buildings. Shared benefits.

Freedom to design. Intelligence to optimize.

100%

Design flexibility and optimization for your facade geometry.

Up to 20%

Potential contribution to BREEAM certification points.

Low carbon

Low embodied carbon materials and reduced operational energy demand.

Indicative potential benefits, not guarantees. Performance, ROI, tax eligibility and BREEAM points depend on the building, project scope, assessment and applicable regulations.

Maximum customization. Minimum waste.

Maximum customization. Minimum waste.

Maximum customization. Minimum waste.

Thermally insulative

Lightweight

Carbon storage

Upcycled

Circular

From a sawmill by-product to prefabricated facade panels. Local feedstock, precision fabrication and a bio-based material strategy bring circular thinking to the building envelope.

Supported by

Frequently Asked Questions

Frequently Asked Questions

Let’s build a biobased future together!

Ready to build with bio-based panels?

Ready to build with bio-based panels?

Ready to build with bio-based panels?

Tell us about your project and we’ll explore the potential for a lower-carbon facade, better thermal comfort and a clearer renovation plan.

A first conversation. No commitment.

We’ll use your details to respond to this enquiry. Privacy policy to be added before launch.

wood waste redefined.

Carrer de Lepant, 270, 08013, Barcelona, Spain

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© 2026 NERA ECO CONSTRUCTION S.L.

© 2026 NERA ECO CONSTRUCTION S.L.

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