Columbia Green Technologies offers innovative green roof solutions for extensive, semi-intensive and intensive roof gardens and amenity decks. Cities across North America are using vegetative roofs to manage environmental issue related to stormwater, urban heat island and loss of habitat. Our products were engineered to maximize stormwater retention and create an environment for optimal plant health. We partner with leading manufacturers of waterproofing materials to offer a complete, single-source warrantied solution for every type of roof construction. We are committed to improving our environment and economy; our products are made in the USA and support low impact development, LEED building.