Protecto-drain 60P is different to other drainage membranes available from Wallbarn since it is a rigid board made from recycled polypropylene, not HDPE. The cups are 60mm deep. With larger cups and more perforations, this membrane holds a much greater amount of moisture and has much higher drainage capacity, meaning the membrane is suitable where higher soil substrates, and a much larger degree of drainage is required.
It is ideal for INTENSIVE green roof systems.
Protecto-drain 60P is 2mm thick membrane (made from recycled polypropylene). It has very good weight tolerance and compressive strength. With higher substrate depths available, more variety of plants and vegetation can be planted on a green roof, including grasses, shrubs and trees.
The higher air gap beneath the green roof system means that water passes through the system into the outlets easily, without the risk of it backing up (in times of flash flood perhaps) and causing damage to the roots or hydrostatic pressure on the surface below.
The frame is rigid, tough and weight bearing, and is designed so that each tray, measuring 500 x 500 x 60mm, can clip onto its neighbour, making installation fast and easy. Protecto-drain 60P can be cut easily to fit around details on the roof.
The edges and base feet are rounded to prevent damage to the waterproofing membrane beneath. Applicators can walk across the membrane without problems due to its strength. It is so stable, in fact, that structures can even be built onto it if required.
 |
 |
Once the deck is waterproofed and protected, Protecto-drain is laid down. The soil / substrate is then installed onto the membrane up to the level required. Care must be taken to ensure that the particles do not clog up the cups so either a geotextile filtration layer should be loose laid onto Protecto-drain 60P or course aggregate with no fine particles should be installed as an intermediate layer before laying soil-type material.
 |
 |
The area can then be planted with whatever type of green roof finish is desired. For more information on our green roof systems, please click here Component Green Roof
Technical Data
| Technical features | Technical data | Test Method |
| Material | Recycled polypropylene | |
| Material thickness | 2 mm | calibrated thickness measuring tape |
| Tray width | 500 mm | calibrated measuring tape |
| Tray length | 500 mm | calibrated measuring tape |
| Tray weight | 4 kg per m2 | |
| Units per pallet | 720 pieces (180 m2) | |
| Compression strength | 6,000 kg per m2 | |
| Height of cups | 60mm | |
| Void beneath membrane (air gap) | 35 litres per m2 | |
| Horizontal drainage capacity | 20 litres per m2 | |
| Horizontal drainage surface | 1,144 cm3 per m2 | |
| Holes per m2 | 500 | |
| Temperature tolerance | - 30°C to + 80°C | |
| Reaction to fire | B2 | DIN 4102 |
| Physical characteristics | Rot-proof, resistant to fungus and bacteria. Will not leach chemicals. Not harmful to drinking water. | |
Application
Used as a mechanical protection against soil and root movement along foundation walls. It can be installed with a 20cm overlap and fixed with nails and sealing buttons 5 cm from the top edges of the roll and 20cm from each roll. Edging profile is installed to prevent soil ingress into the cavity. Maximum build-up 8 metres high.
Laid horizontally and fixed using sealing tape in the overlapping areas the sheets protect concrete flooring form rising damp and keep reinforcement mesh in place firmly during the concrete works.
Storage and handling
Protect against prolonged exposure to direct sunlight and temperatures over 25 °C
Guarantee / warranty
When used in the correct manner and application, the material will be rot proof for 20 years. Wallbarn application rules and proper site storage, handling and installation practices must be carried out as a prerequisite for any possible future warranty claims.
Health and safety
No known dangerous substances
This datasheet represents the current knowledge of the product, but may be revised by Wallbarn in the future. It is the duty of the customer and installer to be clear that this product is suitable for the purposes it is used for.
This technical datasheet may be revised or changed at any time without prior notice. It is the duty of the customer and installer to be sure they possess the latest version of the datasheet.
To download our current brochure (in Adobe Acrobat PDF format) please click here.
Wallbarn Protecto-drain is high density
polyethylene (HDPE) cupped drainage sheeting which acts as a protection and drainage layer for waterproofed surfaces.