Steam Stratum taps into the rich geologic history of Latvia and the presence of natural thermal baths. Conceived of as an extrusion of the sedimentary rock below, the building is organized into various layers, or strata. These layers are placed to separate and connect the differential programs in a precise manner — lifting to create higher ceiling heights below, or descending to connect directly to adjacent programs. As the topographic cut moves through the building it interacts with the different levels to allow for seamless navigation through the linear resort. Despite its appearance, the building is primarily glazed to allow for uninterrupted views of the surrounding natural landscape. To provide privacy, a series of vertical stone fins quarried from a local mine, are organized to line the glazed façade and provide the simultaneous sense of a monolithic stone that is rooted within its natural environment while being porous. Moving through the layers of the building, one flows through different strata of rock and air — carved out cave-like spaces that produced a contemporary sense of a primitive relationship to the earth.
The thermal baths are organized into one fluctuating datum that is carved into an overall terraced topography. This stone platform can be flooded to differential heights to allow for different pool sizes and configurations to enable flexibility during different seasons. Seating, movement paths, stairs, and bar areas are carved into the same topography to allow for an uninterrupted panoramic view of the city and sea. The depth of the pools creates natural temperature differentials and associated amounts of steam. The ceiling of the baths has a precise stepped carving to move the steam to various areas in the ‘cave’ to provide privacy and concealment for more intimate spa programs above. A series of skylights are deployed across the roof plane to exhaust this steam from the building and create a steam park on the roof. The atmospheric qualities of an ephemeral enclosure are leveraged to create a series of soft divisions along the roof park. When the skylights are closed, the ceiling plane is configured with areas of sharp topographic changes to cause a ‘rain’ drip curtains around the pools, providing a different type of soft enclosure formed from the atmospherics of a hydrological change of state.
▼外景渲染图（冬天） Render-Exterior (winter)
作为市政建筑的“Steam Stratum”将温泉浴场和公园的不同功能区整合在一条线上。它是利耶帕亚市与波罗的海之间的门槛，是存在于城市与海洋之间的公共界线及天然临界点。该建筑是透气的边界线，其选址最大程度上减少对周围树木的破坏。停车场设在建筑内，以保护自然环境，并减少区域内的步行距离。当地的Robežu iela街和Kalèju iela街将城市网格延伸至该区，成为通向建筑的主要入口及公园通道。源于城市的道路从城市经过建筑最终到达公园和海滩，为游客开启了不同的体验。此外，经过一系列的庭院可以从公园到达建筑；庭院栽种着从建筑区域移栽的树木，使得建筑内外部的界限趋于模糊。
▼总平面图 Site plan
Threshold + Consolidation
Steam Stratum is a proposal for a civic building that consolidates the various programs for the thermal bath and park and structures them within a line. This line serves as a threshold between the city of Liepaja and the Baltic Sea — allowing for a public as well as natural interface between the city and the sea. The building is located to minimize distribution to existing trees as well acts as a porous boundary. Parking is consolidated within the building to preserve the natural environment and minimize foot traffic on the site. The local streets Robežu iela and Kalèju iela act as alignments for extending the grid of the city into the site and marking major entry points for the building as well as access into the park. This path that stems from the city unbraids into various experiences that moves one from the city, through the building and eventually to the park and beach. Further, the park moves into the building in a series of courtyards, which contain replanted trees from the site, blurring the boundary between interior and exterior.
▼各层平面图 Floor plans
Project: Steam Stratum — Baltic Thermal Pool Park
Location: Liepaja, Latvia
Office: The Open Workshop
Awarded: Honorable Mention
gooood also reported another interesting thermal baths：