Sanitary

Description

The planned new Allmend primary school building aims to create a future-proof, sustainable, and pedagogically functional infrastructure for primary grades 1 through 6. The four-story building will be constructed using conventional timber framing on the school grounds, replacing the existing outdoor sports facility ("Red Square"). The geological and hydrogeological conditions on the site are considered challenging. In particular, two separate groundwater aquifers must be taken into account. The soil conditions necessitate a pile foundation (concrete displacement piles), including timber piles for utility lines and inspection chambers. With regard to flood protection, the new building meets the requirements for a 300-year flood event (HQ300). Building services will be located on the ground floor and top floor (no basement) to prevent damage from flooding. The building's load-bearing structure is based on a solid timber frame made of spruce/fir. This is complemented by three solid service cores made of reinforced concrete. The spiral staircases between the service cores are also constructed of reinforced concrete. The facade consists of prefabricated timber-frame exterior elements. The building is certified according to SNBS 2.1 building construction standards (aiming for Gold certification). Energy is supplied via a connection to the local district heating network SeeEnergy (heating in winter, cooling water in summer). All surfaces are equipped with underfloor heating. All floor coverings are made of polished industrial concrete, serving as thermal mass and providing gentle f