Please take the following points into account during the design phase and maintain an image in your mind's eye of the type of vegetative landscape you want to create, as it will form the basis of the green roof design.

(1) Root barrier

• In accordance with FLL green roofing guidelines or DIN EN 13948
• Root-proof roof membrane or root protection sh
• Connections and connection heights
• Covering the entire surface

(2) Additional burden on the surface

• Caused by the green roof
• Caused by traffic on utilised roof terraces

(3) Incline/roof pitch

• Take into account for extensive green roofs on level roofs and consider measures against puddle formation where necessary
• Anti-slip measures are necessary on roofs with an incline of 15° or more to prevent the green roof substrate from slipping
• Connections and connection heights
• Roofs utilised by pedestrians and traffic require a minimum incline of 2-3%

(4) Wind suction load and anti-drift protection

• In particular on high roofs and surfaces exposed to wind

(5) Fire protection regulations

(6) Drainage

• Sufficient drainage outlets on the roof
• Adequately dimensioned drainage layer

(7) Green roof layer build-u

• Depending on the objective or form of utilisation

(8) Water connection

• For continuous irrigation of intensive green roofs
• For initial irrigation of extensive green roofs

(9) Fall protection

• Required on roofs higher than 3 metres
• Obligation of the building owner or roof designer
• Construction and utilisation phase

(10) Roof access

• For care and maintenance work

(11) Coordination with other trades

• Coordination with other trades
• Combination of green roof and process water utilisation