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Modulina UAB
Modulina Straw Panels
Nest House – A Scalable House Made of Clay, Straw and Timber (CST)
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Description
The Modulina Straw Panels are prefabricated wall elements composed of tightly compressed straw encased in a precisely manufactured timber frame. The accuracy of the timber frame is within ±2 mm, ensuring high precision and ease of installation.
Key technical specifications include:
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Density of compressed straw: 100 kg/m³, offering a balance of insulation and structural infill.
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Flammability classification: B-s1, d0, indicating low smoke production and no flaming droplets in fire scenarios—exemplary for a natural material.
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Thermal conductivity (λₐ): 0.059 W/mK, providing effective insulation suitable for energy-efficient buildings.
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Sound insulation (Rₐ): 57 dB, ensuring strong acoustic performance—ideal for residential and public use.
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Material: The frame is built from calibrated C24 class timber, a structural-grade softwood suitable for load-bearing use in modern timber construction.
Together, these parameters make Modulina panels an eco-conscious and high-performance choice for buildings aiming to meet climate targets and health-focused indoor standards.
Overview
- High-Precision Timber Frame Accuracy within ±2 mm ensures excellent fit and modular assembly during construction.
- Outstanding Thermal & Acoustic Performance With a thermal conductivity of λ = 0.059 W/mK and sound insulation Rw = 57 dB, Modulina panels offer both energy efficiency and superior indoor comfort.
- Fire Safety Certified Classified as B-s1, d0, Modulina panels meet stringent fire resistance standards with minimal smoke and no flaming droplets—remarkable for a natural material.
- Sustainable and Structural Compressed straw density of 100 kg/m³ within a C24 class timber frame offers both environmental responsibility and structural reliability up to three stories.
Description
Nest House is a pioneering prototype of biogenic architecture showcasing a circular, low-carbon approach to construction. Built from Clay, Straw, and Timber (CST), it embodies principles of circularity, prefabrication, and modularity. Designed for disassembly, this house uses Modulina Straw Panels for high-performance insulation with minimal carbon footprint, and integrates upcycled and reused components—from windows and facades to roof cladding and kitchen elements. It not only highlights sustainable living, but also demonstrates that climate-positive construction is scalable, aesthetic, and resource-conscious. Following its debut at Roskilde Circular Lab, Nest House will be relocated to Tunnelfabrikken in Copenhagen for extended public exhibition.
