Green Paradise conceals Cars

Making good use of underground car parks

ID: 1558960
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(PresseBox) - What is it like to live in a densely populated area with high road traffic volumes? How do people find parking between the apartment blocks, shopping malls or near work?

The ideal situation is where cars are hidden away in underground car parks and flowers and trees are allowed to grow on the exact same spot, and benches, pergolas or playgrounds beckon people to linger a while. These green areas provide a valuable recreation space and a wonderful setting against the grey urban backdrop, as they are generally visible from the surrounding buildings. The question remains: how do you build it? ZinCo provides tailor-made system build-ups specifically for this type of construction.

Lush vegetation, pathways and terraces, sport and playground areas and also fire service entrances or helipads can be installed just as easily on the roof of an underground car park or a courtyard with a cellar, both in commercial and residential complexes, provided their structural load reserve is sufficient. Impermeable concrete slabs that do not require a waterproof membrane are frequently used when building underground car parks. They also do not require root protection as the slabs are root-resistant in themselves. Other types of construction, for example, a courtyard over a cellar requires a root-resistant and waterproof membrane, which must be protected. ub-substrate (for structural stability/ventilation) beneath the required ZinCo system substrate with organic elements (upper substrate for water storage and nutrient supply).

Drainage is influenced by the slope

Careful consideration should be given to the slope of the drainage layer, we usually recommend a 2% slope. In contrast, a typical water retention irrigation system for intensive green roofs requires a 0roof area, for example, sealed concrete or asphalt paving, then surface drainage is a major factor given that there will be peak run-off levels during intense rainfall. A slope of 2% is also required here to allow the rainwater to flow quickly to the drainage outlets. Where possible, surfaces that ancidentally, water-bound pathway surfaces and the elastic surfaces of running tracks, street courts and basketball courts are also open-pore.

Loads perfectly distributed

If heavy-duty traffic such as delivery, fire service or refuse vehicles are to be used on underground car park roofs, a load-distributing crushed stone base course with a build-up depth of 30 to 35 cm is required, while a depth of 15 cm is sufficient for use with cars. In addition to pressure loads that arise when vehicles are stationary, horizontal loads arise from braking, steering and accelerating. The loads are to be transferred to the building structure by means of sliding layers, rising building components and stable edgings with rear supports. The stone thickness of paving surfaces is appropriately dimensioned (8 cm for pedestrian, 10 cm for car and 14 cm for truck traffic) and installation is preferably diagonal or as interlocking paving, in order to avoid the pavers rotating out of place.

Entirely building-specific

The classic drainage elements for underground parking decks are Protectodrain PD 250 and Elastodrain EL 202. The latter is of benefit where only a low build-up depth is available and maximum building protection or mainly paved areas are required. Protectodrain PD 250 is the right choice for primarily green areas with deeper build-up depths. The attached rubber protection mat provides a high level of mechanical protection. In both cases it is important that the slope on site is sufficient. If the roof has a slope of 0

Drainage elements for underground parking decks are basically either very stable in themselves - as in the examples mentioned above - or they have to be stabilised by filling them with hard crushed stone or by concreting and reinforcing them. This is the case with Floradrain FD 60 neo and has the advantage that even long drainage distances can be bridged beneath a driving surface. The 60 mm high elements provide the largest drainage cross-section and at the same time the greatest water storage capacity for intensive planting.

Down to the last detail

Generally speaking, all types of edging and foundations for equipment and features such as sandstone walls, pergolas and playground equipment are to be placed above the drainage layer that covers the entire area (lost formwork), in order to ensure that the flow of water is not obstructed at any point. Roof penetration is totally surplus to requirements. Larger trees are firmly secured using special tree anchors. As regards railing fixings, ZinCo supplies railing base elements, and also all accessories, from the height-adjustable terrace grating to faa leak.

Other hidden benefits

Given the correct design, any number of combinations of green, paving, recreation, sport or water areas can be used on the roof of an underground car park.

Author: Roland Appl, ZinCo GmbH

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published by: PresseBox
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Date: 06/22/2020 - 10:20
Language: English
News-ID 1558960
Character count: 7393
Firma: ZinCo GmbH
Ansprechpartner: Feedback to about Pressrelease-id:
Stadt: Nürtingen


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