Description:

HYDRODUCT® drainage sheets are pre-fabricated geocomposites comprising studded polystyrene drainage cores covered with polypropylene filter fabrics. Usually used in conjunction with GCP waterproofing membranes they provide efficient, cost effective drainage planes to horizontal roof and concrete deck surfaces to quickly route water into drainage outlets.

HYDRODUCT® drainage sheets should always be correctly linked with drainage outlets to ensure water is drained into the roof or deck drainage system.

HYDRODUCT® 401 is a polypropylene non-woven filter fabric on one face of an 12 mm studded drainage core with a separation geotextile bonded to the other face. For low and regular maintenance green roofs and planter boxes with minimum falls of 1 in 80.

Advantages:

• Polystyrene has minimal creep under long term loading – drainage capacity maintained
• Fully compatible with GCP waterproof membranes
• Provides additional factors of safety against water penetration through roof decks
• Range of filter fabrics to cover hard and soft landscaped finishes
• Range of compressive strength cores to suit different loading and trafficking conditions
• Provides an efficient, low cost drainage plane to horizontal roof decks
• Geotextile filter fabrics prevent soil particles entering drainage core – minimises risk of clogging
• Rot proof – unaffected by immersion in water and resistant to dilute concentrations of chemicals
• Quick and easy to install – no site plant needed
• HYDRODUCT® 401 and 501 provide both water discharge and retention functions for low and regular maintenance green roofs.