- lot 1: ventilated curtain wall;

- Lot 2: sheet metal connections and ventilation grilles.

Lot 1: curtain-type, ventilated facade

The Droste-Hülshoff-Gymnasium (DHG) in Rottweil was built in 3 phases in 1959, 1965 and 1979 as a reinforced concrete skeleton structure with ribbed ceilings and wall infills in masonry on a hillside plot.

Construction sections I and II (together approx. 3,200 sqm GFA) are to be completely renovated in 2020-2022, the corresponding work is the subject of this tender. The construction sections will be cleared and renovated one after the other, BA II 2020 until early 2021 and BA I afterwards until mid 2022.

A replacement building for BA III will then be built (2022-2023) and finally BA III will be demolished. This work will be advertised separately at a later date.

The main focus of the intended tender is the following work:

- 382 m 2 - Mineral wool insulation layer, d = 120-180 mm, + anchoring;

- 382 m 2 - aluminum substructure;

- 382 m 2 - Facade cladding fiber cement panels;

- 214 m - end plates, aluminum plinth / window lintels, various cuts;

- 553 m - insect screen made of perforated aluminum sheet, various cuts.

Lot 2: sheet metal connections and ventilation grilles

The Droste-Hülshoff-Gymnasium (DHG) in Rottweil was built in 3 phases in 1959, 1965 and 1979 as a reinforced concrete skeleton structure with ribbed ceilings and wall infills in masonry on a hillside plot.

Construction sections I and II (together approx. 3,200 sqm GFA) are to be completely renovated in 2020-2022, the corresponding work is the subject of this tender. The construction sections will be cleared and renovated one after the other, BA II 2020 until early 2021 and BA I afterwards until mid 2022.

A replacement building for BA III will then be built (2022-2023) and finally BA III will be demolished. This work will be advertised separately at a later date.

The main focus of the intended tender is the following work:

- 430 m - aluminum sheets on window reveals, various cuts;

- 110 m - aluminum sheets along roof soffits;

- 95 m 2 - ventilation grille (aluminum angle frame with expanded metal filling);

Various Dimensions, single size of approx. 0.40 m 2 -4 m 2 , 54 St.