为气候危机的一代而设计,丹麦学校的扩建部分由木材和稻草建成,是一个可扩展的碳封存解决方案,给全世界上了一堂生态创新课。

Designed for the climate crisis generation, the Danish school extension built of wood and straw is a scalable solution for carbon sequestering, giving the world a lesson in eco-innovation.

在设计一座捕获的碳多于排放的建筑的承诺的驱动下,位于丹麦Rønde的Feldballe学校的250平方米/2700平方英尺的扩建项目是Henning Larsen迄今为止最具雄心的项目。该项目是为即将面临气候危机的一代人的科学课而建,建筑事务所实施了毫不妥协的材料策略;重新思考传统的建筑模块。

Driven by the commitment to design a building that captures more carbon than it emits, the 250m2 / 2700ft2 extension of Feldballe School in Rønde, Denmark, is Henning Larsen’s most ambitious project to date. Built for science classes for a generation that will come of age with the weight of the climate crisis, the architecture practice implemented an uncompromising material strategy; rethinking the conventional building blocks.

在不影响功能、气氛和建筑表现力的情况下,学校扩建部分几乎完全由生物基材料建成,这些材料是混凝土、砖和钢的可行替代品,关键是这些材料可以封存而不是排放二氧化碳,完全不含有毒化学品,防火安全,并提供有效的绝缘和良好的室内气候。

Embodying immense potential without compromising on function, atmosphere, and architectural expression, the school extension is built almost entirely of bio-based materials, viable alternatives to concrete, brick, and steel, and crucially, materials that sequester rather than emit CO2, are totally free of toxic chemicals, fire-safe, and offer both efficient insulation and a great indoor climate.

在丹麦慈善组织Realdania的支持下,通过与EcoCocon的合作,最终的设计方案是一个由压缩稻草的先锋面板系统组成的结构,一个完全由木材制成的屋顶,以及一个由鳗草制成的通风系统–一种在北半球大部分地区的海边常见的海藻。

With support from the Danish philanthropic organization, Realdania, and in partnership with EcoCocon, the final design solution is a structure made of a pioneering panel system of compressed straw, a roof made solely of timber, and a ventilation system made of eelgrass – a common seaweed along seashores in the majority of the Northern Hemisphere.

规模小但影响大。该项目重新定义了可持续建筑的标准,考察了建筑的整个生命周期。作为生态社区Friland的一部分,学校的目标是培养未来一代的思想家、领导者和社区成员,致力于创造一个更可持续的世界,这是设计雄心的催化剂。

Small in scale but big in impact. The project has redefined the standards for sustainable construction, examining the entire life cycle of a building. Part of eco-community Friland, the school’s goal of preparing a future generation of thinkers, leaders, and community members committed to creating a more sustainable world was a catalyst for the design ambition.

设计团队创建了一个不超越地球极限的可持续设计框架,包括五个雄心勃勃的原则:采用可持续采购的、可再生的、基于生物的材料来封存碳;使用已经生产的当地材料来节约资源和能源;采用不含有毒化学品的材料,尽量减少废气,确保清洁的生产和加工程序;通过确保健康的室内气候来降低运营能耗,培养一个平衡日光和被动通风的环境;进行拆装设计,使建筑部件在未来可以重复使用。

The design team created a framework for sustainable design that doesn’t exceed planetary boundaries, comprising five ambitious principles: incorporate sustainably sourced, renewable, bio-based materials to sequestering carbon; use already produced local materials to save resources and energy; employ materials that are free of toxic chemicals, minimizing off-gassing and ensuring clean production and processing procedures; lower operational energy consumption by ensuring a healthy indoor climate, fostering an environment that balances daylight with passive ventilation; design for disassembly, enabling the reuse of building components in the future.

在实施这些原则的过程中,设计团队成功地超越了目标,在50年的使用寿命内,每平方米每年的二氧化碳排放量为6公斤,符合丹麦标准。如果该空间在未来几十年内仍然被学校社区使用和尊重,那么每年的足迹将进一步减少到每平方米-3公斤二氧化碳*。

Operationalizing these principles, the design team successfully surpassed the targets, arriving at a footprint of 6kg of CO2e per m2 per year, over a lifespan of 50 years – per Danish standards. Provided the space remains used and respected by the school community beyond the next few decades the footprint is reduced further to -3kg of CO2e per m2, per year*.

由合作伙伴EcoCocon生产的木盒压缩秸秆集成板系统具有极高的精度,形成了一个可适应和适用于各种建筑类型的建筑系统。屋顶完全由当地生产的认证木材制成,未经处理的胶合板构成了内墙的表面和内置家具。自然材料使扩建部分具有温暖的表达方式,而且由于不需要大型通风管道或吊顶,房间宽敞且天花板高。

The integrated panel system of compressed straw in wooden cassettes was produced by partners EcoCocon with the utmost precision, forming a construction system that is adaptable and applicable to a vast range of building typologies. The roof is made entirely of certified locally produced timber, and untreated plywood makes up the inner walls’ surfaces and the built-in furniture. The natural materials lend the extension a warm, welcoming expression, and because there is no need for large ventilation ducts or suspended ceilings, the rooms are spacious and high-ceilinged.

自然和被动的通风系统消除了日常操作层面的能源消耗,屋顶上的太阳能电池板进一步支持了该项目。稻草的渗透特性使湿度得以散发,而内墙由支持其扩散特性的粘土灰泥组成。鳗鱼草的空气过滤器实现了自然通风,通过监测空气质量和温度自动控制。

Natural and passive ventilation systems eliminate energy consumption on a daily operational level, further supported by solar panels on the roof. The permeable characteristics of straw allow humidity to escape, and the interior walls consist of clay plaster supporting its diffusion qualities. Air filters of eelgrass enable natural ventilation, automatically controlled by monitoring air quality and temperature.

整个结构的设计是为了便于拆卸和再利用,优先考虑循环性和废物管理,提供灵活性,易于维修,并使其在未来有可能重新安装或回收其部件。

The entire structure is designed for easy disassembly and reuse, prioritizing circularity and waste management, offering flexibility, and ease of repair, and making it possible to reinstall or recycle its parts in the future.

Architects: Henning Larsen
Area : 250 m²
Year : 2023
Photographs :Rasmus Hjortshøj – COAST
General Engineering : Reeholm & Bredahl
Client : Feldballe School
Funding Partner : Realdania
General Contractor : Høgh & Sønberg
Supplier : EcoCocon
City : Feldballe
Country : Denmark