Green roofings supply this opportunity and have shown to increase or even three-way the life span of your rooftop. The barrier of greenery helps secure the water resistant membrane layer underneath and guarantee your roof's life span lasts well for decades. A properly set up, irrigated and maintained living roof need to last for as much as 50 years. If the plants on your roofing are dying, or the weeds are taking over, you require to call P&amp