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Architecture, Travel

Ice hotels and houses: how are they made? traduzido por: OPENROUTER

Ice hotels and houses combine architecture, thermal engineering, and landscape to create temporary experiences in the coldest places in the world traduzido por: OPENROUTER

By Milena Garcia

Submitted at May 23, 2026, 10:00 AM

05 min de leitura
Hotel de gelo

Hotel de gelo (Guia das artes/Divulgação)

Ice hotels and houses spark fascination not only for their sculptural appearance, but also for the technical complexity involved in their construction. Found in countries such as Sweden, Finland, Norway and Canada, these structures are built every year during winter and disappear with the arrival of higher temperatures. More than tourist attractions, they represent architectural solutions developed in response to extreme climate conditions.

Although ice may seem like a fragile material at first glance, its capacity for thermal insulation and structural resistance allows the creation of surprisingly comfortable spaces. Inspired by ancient igloos, today's ice hotels and houses combine traditional techniques, contemporary engineering and experimental design to transform snow and ice into habitable architecture.

How ice is transformed into an architectural structure


The construction of ice hotels and houses begins with the collection of large blocks of natural ice or with the compaction of snow into specific molds. In many cases, a mixture known as snice — a combination of snow and crushed ice — is sprayed over curved metal structures that work as a temporary mold. After the material freezes completely, the internal supports are removed, leaving only the icy structure.

Ice Hotel Jukkasjärvi traduzido por: OPENROUTER

Ice Hotel Jukkasjärvi (Markus Bernet/Wikimedia Commons/Divulgação)

The rounded shape is not just aesthetic. As in traditional igloos, the curves help to better distribute the weight and increase the construction's resistance against winds and cracks. The shape also reduces heat loss, creating thermally more stable projects even in negative temperatures.

Why the interior does not freeze completely


One of the most curious aspects of ice hotels and houses is the internal thermal sensation, which is usually more bearable than the external environment. This happens because compacted snow works as a natural thermal insulator, retaining air pockets in its structure.

Ice hotel traduzido por: OPENROUTER

Hotel de gelo (Wikimedia Commons/Divulgação)

In addition, narrow entrances and tunnel-shaped corridors help prevent the direct circulation of cold wind. In many projects, the sleeping areas are slightly elevated, taking advantage of the fact that warm air rises. Even so, guests use special thermal sleeping bags, furs and blankets suitable for extreme temperatures.

Ephemeral design and immersive experiences


Unlike conventional hotels, many ice hotels and houses have a temporary nature. Most of these structures are rebuilt annually, allowing architects and artists to develop new interiors with each edition. Hand-carved rooms, ice bars, galleries and even entire chapels are created from the formed ice.

Ice hotel traduzido por: OPENROUTER

Hotel de gelo (Asaf Kliger/Divulgação)

This ephemeral characteristic brings these spaces closer to artistic installations. The lighting is usually designed to enhance transparencies, textures and bluish reflections, creating silent projects and almost unreal ones. In many cases, the design prioritizes the sensory experience as much as functionality.

Technology and sustainability in extreme cold


Although they may seem like primary constructions, many ice hotels and houses incorporate sophisticated solutions of thermal engineering and energy efficiency. Insulation systems, controlled ventilation and constant monitoring help maintain structural stability and reduce energy waste. Concepts similar to those used in isothermal facades and cold storage chambers also inspire part of these solutions.

Ice hotel traduzido por: OPENROUTER

Hotel de gelo (Paulina Holmgren/Divulgação)

Another important point is the low environmental impact of some of these constructions. As the ice naturally returns to the environment after winter, many projects avoid permanent waste and use temporary or reusable materials in the support structures. In some cases, the water used returns to the rivers during thawing, reinforcing the cyclical nature of these architectures.

traduzido por: OPENROUTER