Light intensive lawn

THIS SYSTEM IS USED ON ROOFS, TERRACES AND ROOF COVERAGE FOR UNDERGROUND SPACES. IT IS SUITABLE FOR ALL PRIVATE AND PUBLIC SURFACES OF ANY SIZE. IN THIS CASE, THE GREEN ROOF SYSTEM SERVES THE FOLLOWING FUNCTIONS: 

  • RECREATE GARDENS OF REFINED AESTHETICS EVEN IN THE MOST DENSELY URBANIZED AREAS, ENJOYING GREATER PRIVACY THAN GROUND GARDENS.

  • MITIGATE THE HIGH TEMPERATURES OF BOTH THE SPACES BELOW THE CANOPY AND THE ADJACENT OUTDOOR ENVIRONMENT DUE TO THE SUBSTRATE THICKNESS AND INTENSE EVAPOTRANSPIRATION.

  • CONTRIBUTE TO THE STORAGE PROCESS IN THE CASE OF INTENSE RAINFALL AND PROMOTE THE RESTORATION OF THE WATER CYCLE.

  • LOCALLY PROMOTE AIR PURIFICATION.

  • EXTEND WATERPROOFING LIFESPAN.

HARPO LIGHT INTENSIVE LAWN FEATURES

The Harpo verdepensile light intensive lawn system adheres to the UNI 11235-2015 standard, ensuring and exceeding the minimum characteristics for both all individual elements and system performance. The main characteristics of the system are as follows:

  • Versatile and lightweight: usually the total thickness of the system is about 25 cm for both the BAS and RIC lines. In both cases, the maximum retention weight of the lower thickness system starts from 180 kg/sqm.
  • Aesthetic value and usability: a light intensive lawn represents the classic walkable lawn, thus ensuring total usability. The very high permeability of the substrate also allows almost immediate access even after rainfall events, preventing the formation of water stagnation and mud.
  • Management costs: the amount of maintenance required is mainly determined by the periodic care and cutting of the lawn, which can also be done with automatic meadow mowers. Occasional fertilization interventions are recommended. Indicatively, the system requires 4 to 9 days/year for a 1000 sq m cover.
  • Irrigation: vegetation requires a moist substrate, so a calibrated meadow irrigation system should be designed.
  • Cost of implementation: this solution is economical on average as far as the system is concerned. The total cost is a function of the quality of the meadow. meadow planted on sandy substrate is recommended.
  • Thermal resistance: the system contributes to energy savings with a thermal resistance that varies depending on the water content but is not less than 0.48 (m2 * K)/W, with substrate thickness 15 cm, according to CNR report for the BAS system
  • Runoff coefficient: specific values can be provided upon request based on studies conducted with the University of Genoa.