Trafficked paving on roof decks requires an engineered build-up to prevent the extreme vehicular traffic loadings causing damage to the roof deck construction and the waterproofing membrane. The traffic loadings are absorbed by the Nophadrain Parking Deck System-Cars by the ND TSF-100 Slip and Protection Sheet in combination with the high pressure resistant CE marked ND 620 Drainage System. The drainage system ensures excellent drainage of the subbase and prevents lifting of the road surface by frost and rutting. The high compressive strength of the ND 620 Drainage System ( approx. 900 kPa ) and the special woven filter fabric make it possible to compact the sub-base layer
in accordance with best practice guaranteeing stability of the paving elements. The Nophadrain Parking Deck System-Cars has been assessed by both index and performance tests. The Nophadrain Parking Deck System can be easily combined with intensive planting schemes.