green shed roof drainage
Green roofs are made up of several layers, typically a waterproof/root barrier layer to protect the roof, a drainage layer, water retention mat, then the growing medium and vegetation. when saturated these layers can weigh in at more than 100kg per square metre, or 20lbs per square foot.. There are a number of factors to consider before adding a green roof to your shed, not the least of which is whether your shed will be strong enough. for plants to flourish on a green roof they will need moisture and drainage, which means soil and a sturdy framework to keep it in place.. How to drain the roof. one of the main concerns that small scale builders have outlined to us is how to drain the roof. the guide gives rational to the whys and hows of allowing free drainage. before commercial drainage layers were developed, it was common practice to use a thin layer of gravel to act as a drainage layer..
green shed roof drainage
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