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Protecto-Drain 8
Flexible protection and drainage layer
- Made from high density polyethylene (HDPE)
- Lightweight, flexible and durable
- Protects waterproofing membranes from abrasion or puncture
- Dimpled “egg-box” profile giving high compression strength
- High tearing and impact resistant
- Rot-proof, safe for drinking water
- Available in two size Rolls – 1 x 20m (20sqm) & 2 x 20m (40sqm)
What is it used for?
Suitable for subterranean foundation walls, tanking and basement construction.
The 8mm deep cups provide an air gap between the concrete structure and the backfill. Water runs down the outer surface towards a drain at the bottom of the structure.
Creates a permanent air gap when fixed to surface walls and floors, preventing hydrostatic pressure and helping to ventilate the structural wall.
Fixing
- Nails pass through the membrane and don’t split the material
- Plugs seal the cups
- A cover profile fitted at the top prevents particles dropping behind the membrane
- Sheets can be bonded to the structural wall using bitumen based adhesive tape or fixed with nails and plugs
- Each sheet must overlap each other by at least 20cm for secure installation
Bonding sheets
- Can be bonded together to create one seamless watertight layer
- Can be fitted to floors to act as a vapour barrier and a damp proof layer
Storage & Handling
Protect against prolonged exposure to direct sunlight and temperatures over 25°C
Protecto-Drain 8 Technical Data
| Technical features | Technical data | Test Method |
|---|---|---|
| Material | High density polyethylene (HDPE) | |
| Roll width | 2 metres | calibrated measuring tape |
| Roll length | 20 metres | calibrated measuring tape |
| Roll weight | 550 gsm (±10%) | calibrated thickness |
| measuring tape | ||
| Rolls per pallet | 12 | |
| Compression strength | 250 kN per m2 | MDV |
| Height of cups | 8mm | MDV |
| Number of cups | 1500 pieces per m2 | MDV |
| Air volume between the cups | 5.5 litres per m2 | MDV |
| Water drainage capacity | 4.6 litres per m2 | MDV |
| Temperature tolerance | – 30°C to + 80°C | MDV |
| Reaction to fire | B2 (B1 available by special request) | DIN 4102 |
| Physical characteristics | Rot-proof, resistant to fungus and bacteria. Will not leach chemicals. Not harmful to drinking water. No health hazards under normal use |
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.
