Water Retention Fleece. Essential when installing Enviromat sedum matting on to a green roof or on to the ground.
Water retention fleece is a lightweight, easily managed blanket, approximately 5mm thick that will absorb rainwater and store it for the plants to use during dry weather.
Water holding capacity is 9 litres of water for every square metre of water retention blanket. This product conforms to FLL guidelines and is fire resistant.
For a flat roof or for ground use, install water retention matting directly beneath Enviromat sedum matting and on top of drainage matting. On a pitched roof, drainage matting is unneccessary so install water retention matting between waterproofing and sedum matting.