Demolition and dismantling work according to DIN 18459 and pollutant remediation according to TRGS.

Conversion and extension of IGS Deidesheim; building demolition with pollutant remediation and gutting.

Execution in accordance with the applicable rules for hazardous substances, in particular TRGS 519, TRGS 521, PCB Directive and TA demolition.

Key services/performance quantities (approx.):

— 1 400 m2 occupational and protective scaffolding,

— 800 m2 dismantling of eternite asbestos roofing,

— 54 t deconstruction of A-IV timber roof truss,

— 400 m2 windows with asbestos putty,

— 2 000 m2 old KMF insulation and insulation materials,

— 190 m PCB-bearing facade joint waterproofing,

— 2 000 m2 different ceiling suspensions,

— 2 300 m2 different floor coverings,

— 10 000 m3 converted room building demolition,

— 900 m2 decoupling of facials, tw manually.

Information on the call for demolition work BA2:

The existing school building was built in 1968 (part A2/B/C2 and expanded in 2007/2008 (part A1 /C1). In 2020/2021, component D1 was built.

The school building is divided into 2 lock-shaped building parts (part A1/A2 and part C1, C2 /D1) and a connecting bridge between component A2 and part D1 at the level of the first floor. There is a crawl in the inventory below components A 2/B/C1 and C2.

The project is carried out in 3 construction phases, while the school is in operation.

1st phase of construction D1: new construction,

2nd stage of construction BT C2, C1 and BT B: demolition of the tract connecting the southern and northern buildings and the south-west unrefurbished part,

3. Stage of construction A1 and A2, but these are not part of this call for tenders.

The demolition work consists of component BT B of the connection building South-North, which is two-storey. Component BT B is adjacent to 3 stock connections that are to be maintained without damage.

In the North, BT B connects to component BT A2. BT A2 consists of the administrative and canteen area. BT A 2 is a massively created building with an applied ETICS (KMF), including an armored plaster layer.

To the south, BT B is connected to the BT C2 building, which will also be terminated, and also to the new BT D1 building. BT D1 is a massive building made of reinforced concrete. The façade is made of ETICS and is clad with fibre cement — façade panels.

To the east, BT B in the southern area joins the eastern front of the newer and survivable building, Part BT C1. The connection was designed with a parting line and partially statically connected.

Component BT C2 is the class wing in the southwest (excluding any remaining stock), three floors plus crawl. The building materials comply with the usual standards in the 70's. It is a massive construction with reinforced concrete ceilings and supports. The gable walls and columns are largely masonry. The facade of the south side of the BT C2 class wing was designed as a mullion-transom façade, with reinforced concrete parapet elements and aluminum window strips. The connections were grouted permanently elastic.

The10o pitched gable roof is fitted with a traditional wooden roof truss and an eternite cover. Eternit was also used for blinding the gable sides in the DG area.

Component BT C2 is adjacent to 2 assembly connections that are to be maintained without damage.

In the north, the BT C1 connects. With BT C1, the BT C2 demolition building shares the hallway through which the classrooms are accessed. The hallway itself is part of the demolition and — as an additional level of difficulty — the walls between the hallway and BT C1 are also largely in the demolition area. The boundary marks the parting line. For the stock to be preserved, this means that only parts of the masonry remain, and the resulting gaps must be closed on the side of the BT C1, not only dust and demolition. Appropriate cutting sections must also be made in the area of the suspended ceilings before the actual decoupling can be carried out.

To the east, BT C1 is connected to the new BT D1. The connection was designed with a parting line and partially statically connected.

It is expressly stated here that the remaining stock must be retained without damage. The new building must also protect the existing buildings to be preserved.

The school will continue to operate during the work. A careful and gentle way of working is required here.