Architect performance for the 2nd construction phase of the renovation of the primary school in Neuwied-Niederbieber.
Service phases 4 to 9 are commissioned according to HOAI 2021; as well as special services; honorary zone III.
The school complex consists of a three-storey, two-hip main building and adjoining one-storey buildings. The “main building” was energetically renovated in 2018-2019. The façades and roof were renewed in accordance with the requirements of the valid Energy Saving Ordinance.
The 2nd construction phase is now pending. For the following years, the third and last stage of construction is in preparation for the time being. The funding application for the 2nd BA has been submitted and has now been approved. The following services require the allocation of architectural services according to the VgV above the threshold value.
The single-storey components, with flat roof structures, contain classrooms, administration, technology and toilet facilities. The building parts were partly manufactured using reinforced concrete skeleton construction - with sand-lime brick in the sections - and partly in wood-frame construction. There is also another single-storey single-hip class tract that has already been equipped with a pent roof.
As a follow-up measure to the energetic renovation of the three-storey structure completed in 2019, the planning now presented is intended to implement the measures described below in the 2nd BA.
Over the past few years, roof waterproofing has had to be repaired several times and in many places due to weather-related damage effects, so that the waterproofing now predominantly consists of up to 4-layer bitumen waterproofing. A consequence of the multiple repairs and layer thickness changes is a gradient effect no longer, or only in part, and the resulting waterflow formation after rain events; the inflated rainfall water can no longer flow off professionally in sub-areas.
Furthermore, the thermal insulation introduced during the creation period no longer corresponds to the current state of the art. Excessive heat loss from the heated areas of the lounges (administration, classes, auditorium, hallways) is the result. The defective waterproofing surfaces of the flat roof structures now also show significant damage patterns inside the building.
The existing break hall has damage and deflection and is to be rebuilt. A new break hall is planned at the same point, whose new roof area is designed as a flat roof in light construction with green roofing. In the future, the open hall will be a solitaire between the single-storey bars (there is currently a “connection” or a common roof area between the unheated break hall and heated auditorium).
The roof surfaces above the current multi-purpose and AG room as well as above the toilet tract receive pent roofs (large-format aluminum panels based on the already renovated roof surfaces) and form an “ensemble” together with the already renovated class tract on the west side. Thus, the “edge buildings” with pent roof enclose the internal, single-storey building parts with flat roof. The above single-storey building bars, the auditorium and the personal toilet are once again given a flat roof. Except for the load-bearing wood/ceiling beams, the existing roof surfaces are broken off and rebuilt. The gradient of the new roof surfaces is carried out via slope insulation with an increased slope (previously only realized via wooden wedges/suspenders and therefore not sufficient). The ceiling/roof beams are doubled, which allows the thermal insulation to be increased and at the same time ensures a sufficient ventilation cross-section. The aforementioned flat roofs are also produced as green roofs and thus contribute significantly to improving the small climate, preserving biodiversity and protecting roof waterproofing.
The auditorium, the hallway area and the area under the break hall receive the necessary exposure to daylight via light domes. In the course of roof renovation, the underceilings and lighting will also be renewed. For this purpose, the slope ceilings are installed as raster ceilings with LED grid luminaires. In addition to the aforementioned renovation measures of the roof surfaces, the planning envisages replacing part of the façades, in particular the facades of multi-purpose rooms and AG rooms as well as the windscreen, and to align these energetically and visually with the already new mullion-brick facades of the main building. The 4 classrooms in building C and the new administration are to be connected to the existing ventilation system, which is already installed in the first phase of construction and supplying fresh air to the main building.