Built up green roofs

Green roofs can be subdivides into two types by their structure:

Extensive

  • requires less maintenance
  • less choice of vegetation
  • access usually resticted to maintenance only
  • lowest structural demands

Intensive

  • requires a lot of maintenance
    ((comparable to that of a normal garden, hence the name ‘rooftop garden’)
  • widespread choice of vegetation
  • easily accesible
  • greatest structural requirements

Do you always need to choose between these two types?

No, you don’t. De Boer Green Roof Solutions can offer you also a compromise:

Simple, semi-intensive or light intensive
These types offer you a wider choice of vegetation. The structural demands and the required maintenace are higher than those of an extensive green roof, but are lower than those of an intensive gre”en roof.

De Boer Green Solutions’ systems

  • System 1 with pre-cultivated sedum mats on substrate
  • System 2 with ready-sown sedum cuttings in the substrate
  • System 3 with pre-cultivated sedum mats on water absorbing mineral wool
  • System 4 with pre-cultivated sedum mats on water absorbing geo-textile
Slope/pitch
System Weight,saturated Thickness
1-10°
System 1 drainage layer, according to DIN 4095
mineral substrate (40mm), according to the FLL norms
pre-cultivated mos/sedum mat
90 kg 70 mm
System 2 drainage layer, according to DIN 4095
mineral substrate (60mm), according to the FLL norms
sedum cuttings, ready to sow
100 kg 70 mm
System 3 drainage layer, according to DIN 4095
water absorbing mineral wool
pre-cultivated mos/sedum mat
40 kg 50 mm
10-30° *
System 4 water absorbing geo-textile
pre-cultivated mos/sedum mat
30 kg 30 mm
* 30° pitch only for roofs which do not face south. Depending on the pitch ore slope, two layers of geotextile can be applied.

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De Boer Green Roof Solution’ intensive and semi-intensive systems?

Do you want to recieve more information about De Boer Green Roof Solution’ intensive and semi-intensive systems?
Contact us.

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