Germany – Installation of doors and windows and related components – Modernisierung GS Dorschbergschule - Fenster und Außentüren

The Dorschberg primary school in Wörth a. Rh. was constructed in 1966 and is located behind the central building of the Carl–Benz–Gesamtschule in Wörth am Rhein. The primary school consists of four building sections, including a single- or two-storey building section with connecting corridors, a break hall with an administration wing, and a single-storey pavilion building with four pavilion structures. The buildings are connected by break corridors and have two toilet buildings. The single- to two-storey buildings were constructed using solid concrete prefabricated parts and have flat roofs at different height levels with a surrounding attic and have been repeatedly renovated and modernised to date. In the mid-1990s, concrete renovation took place. As part of this, a thermal insulation composite system and the Alucobond cladding of the attics and prefabricated supports were installed.

Key construction measures:

- The existing single-storey classroom wing will be extended upwards and the former courtyard area between the two existing classroom wings will be enclosed and roofed. For this purpose, the not sufficiently load-bearing prestressed concrete ceiling above the northern classroom wing will be dismantled and replaced by a new reinforced concrete solid ceiling.

- The new upper storey will be constructed using prefabricated timber construction with load-bearing walls as solid timber construction or timber frame construction and the top floor ceiling as cross-laminated timber construction.

- The central auditorium will be fitted with a glass roof construction.

- The prestressed concrete ceiling in the corridor area above the existing crawl space of the north wing must be strengthened by steel beams.

- Minor layout changes in the existing structure

- The pavilions will be gutted and converted into an extended covered courtyard area

- Improvement of the thermal insulation of all building envelope surfaces (roof surfaces, windows, rear-ventilated timber facades, cellar ceiling insulation)

- Modernisation of the technical building equipment including controlled ventilation system with heat recovery, energy-saving lighting systems, building automation, including the digital requirements for school buildings

- Optimisation of fire protection and implementation of the school protection concept.