Did you know a roof garden can triple the life expectancy of a roof membrane? How about reduce air-conditioning load up to 25%? Besides these cost-saving factors, garden roofs also reduce noise pollution, reduce stress via horticultural therapy, provide habitat to wildlife and a spot to grow food. These are just a few reasons, that we might consider greening up our roofs. And if you think you need a flat roof for a garden, you’d be wrong.