Green roof and living roof experts. Sedum Supply Ltd offer a range of quality green roof materials. Including sedum & wildflower green roof kits, EPDM waterproof membrane, drainage systems, edge retention trims, green roof substrate, caledonian pebbles, roof outlets & accessories. Sedum Supply Ltd have over 20 years experience as roofing contractors and installing green roof systems. We offer green roof installation services, green roof maintenance services and expert advice. Check out our help pages on green roof benefits, how much does a green roof cost?, How long do green roofs last?, What is epdm roofing? and much more.