Manna Resort case study – water management

The problem

The Manna Resort’s vast grounds are very exposed to the sun and therefore requires plenty of irrigation.
Due to the rocky subsoil, a traditional buried rainwater tank was out of the question because of the cost.

  • Rocky subsoil

    Excavation in rocky terrain is time consuming and expensive.

  • Large water storage capacity required

    Enormous quantities of rainwater are needed to irrigate the grounds.
    Therefore, a standard rainwater tank would be insufficient.

  • A diverse range of plants

    Plants are very important because they foster the hotel guests’ well-being.

The solution

ClimaGrün solved several problems for the Manna Resort project in one go.

  • An 80 m³ water storage layer on the main roof

    A thin water storage layer was installed underneath the green roof on the hotel’s main roof.

  • No tanks necessary

    The thin water storage layer with a capacity of 80 m³ made a rainwater tank on the ground unnecessary.

  • A green project with a huge number of plants

    A large variety of plants boosts evaporation and subsurface irrigation keeps them well watered.

The result

ClimaGrün collaborated with the architects, planners, and the client to achieve an excellent result.

  • Enough rainwater all year

    Large quantities of drinking water are saved and natural water supplies conserved.

  • Large, decorative and cooling plants

    Guests can enjoy the superb grounds that feature native plants. These areas are irrigated with rainwater and evaporative cooling in summer creates a pleasant climate.

  • Costs saved

    No excavation in rocky terrain nor an investment in a rainwater tank is required.
    Annual costs for drinking water and electricity are cut (because no high-capacity pumps are needed).

Manna Resort Hotel

Products and system solutions
ClimaGrün
Planning office
Pichler Architects
Landscape architects
Arch. Helene Hölzl – Arch. Jörg Platter
Completed by
Platter Landschaftsbau