Many cities and communities promote and support green roofs in different ways. The measures range from attractive financial subsidies on the recognition as ecological compensation measure, up to the establishment of green roofs in development plans.
The inner cities are constantly being characterised by a too high degree of surface sealing so that heat of transport, industry and households contribute to the fact that inner cities are developing into so-called heat islands ("urban heat island effect"). The lack of night-time cooling effects burden increasingly on the health of the urban population. Green roofs can reduce through absorption and evaporation of water the excess surplus and thereby improving the city climate remarkably. Alone the vegetation surface and greenery on living roofs can effectively improve the air quality and filter pollutant particles from the air.
In addition, the energy balance of the building can be effectively enhanced by a green roof. Today there are various green roof systems that have a compensable thermal resistance and thus can be incorporated into the building physics calculation for compliance with the Energy Saving Ordinance.
Green Roofs: Sealed for Life with RESITRIX® SK W Full Bond
Special favorability of RESITRIX® SK W Full Bond
Especially in the field of refurbishment of old roofs the single-layer RESITRIX® SK W Full Bond membrane has a significant static advantage with just about 2.75 kg/m² compared to the bitumen industry, with a weight of approxamitely 8 – 10 kg/ m². This lower basis weight of RESITRIX® SK W Full Bond guarantees in turn more options in choosing the individual green roof and planting. In addition, the fire load decreases.
Green roof types and structures
- Extensive green roof vegetation
- Simple Intensive green roof vegetation
- Intensive green roof vegetation
Extensive green roofs
In the extensive planting what can classify the greenery as a sort of "environmental protective cover" where the maintenance cost is low and watering is to be made only in the growth phase.
Grass, Sedum, weed vegetation, moss and herbs
|Installation height (depth of green roof construction):||6 - 20 cm
|Weight:||60 - 150 kg/m2
Simple intensive Green roofs
The simple intensive green roof vegetation is a “measure of design greening” which requires an average medium maintenance with periodic watering.
Grass, herbs and small tree crops
|Installation height (depth of green roof construction):||12 - 25 cm
|Weight:||150 - 200 kg/m2
Intensive Green Roof Vegetation
The intensive roof vegetation is already a "well-kept garden" or even a "park-like garden". The maintenance required is very high and a regular watering must be ensured.
Lawns, flower beds, small bushes, trees
|Installation height (depth of green roof construction):||15 - 40 cm
|Weight:||150 - 500 kg/m2|