Harvesting birch bark in the wetlands of Jutland

Betula - Nature’s own rainscreen

Name
Benjamin Hauge Troelsen
Education degree
Kandidat
Fagfelt
Architecture
Institute
Architecture and Technology
Program
Architectural Technology
Year
2026

From Ancient Resource to Future Facade
This project investigates the reintroduction of birch bark into modern construction through experimental trials. By forming the bark into multi-layer panels bonded with biodegradable adhesives, it develops a low-carbon, circular alternative to conventional rain screens. The goal is to prove that durable, sustainable architecture can be achieved using nature's own high-performance materials.

Betula - Regenerative Facade Design
Betula - Regenerative Facade Design
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Birch bark harvest
Birch bark harvest
Birch bark harvest
Birch bark harvest
Birch bark harvest
Birch bark harvest
Birch bark harvest
Birch bark harvest
Birch bark harvest
Birch bark harvest

A Constructive Resource
In an era where facade materials often function as superficial embellishments, exemplified by concrete elements concealed by brick and facades that mimic properties they do not possess, the project explores one of the world’s most ancient building materials, birch bark, as both a contextual and structural resource. 

Birch bark offers significant material benefits beyond mere visual expression: inherent durability, distinct tactile qualities, exceptional weather resistance, and an aging process that manifests itself as an authentic record of time rather than a simulated patina. This approach is neither nostalgic nor decorative. Instead, it constitutes a systematic effort to construct durable solutions where the functional performance and aesthetic expression of the material are synonymous.

The resulting architecture illuminates the interplay between craftsmanship and raw material. It invites the user to critically engage with and appreciate the connection between natural resources and building performance, thereby promoting a paradigm shift towards a more honest and a practice centered on materials.

Casein, Resin, Birch tar
Casein, Resin, Birch tar
Delamination test
Delamination test
Strength test
Strength test
Fire test
Fire test

Birch Bark Meets Architecture
 LETH & GORI - the scout hut of the future used as canvas

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Facade
Facade
isometric section — with excerpt from the model
Facade
Facade
isometric section — with excerpt from the model

1:20 Cutaway Model
Excerpt from the photograph

Isometric
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Front
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Right front
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Right rear
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Left rear
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Scan, Reveal, Rotate
QR codes open dynamic views of the project from different angles.

 Longitudinal view
Longitudinal view
Remote view
Remote view
Under the covering
Under the covering
Ankomst view
Ankomst view

The Royal Danish Academy supports the Sustainable Development Goals

Since 2017 the Royal Danish Academy has worked with the Sustainable Development Goals. This is reflected in our research, our teaching and in our students’ projects. This project relates to the following UN goal(-s)