Environment-friendly roofing systems offer this possibility and have actually confirmed to increase or perhaps three-way the life span of your rooftop. The obstacle of plant assists protect the water-proof membrane layer below and ensure your roof's life expectancy lasts well for years. A properly set up, irrigated and kept living roof covering need to last for approximately half a century. If the plants on your roofing are passing away, or the weeds are taking control of, you need to call P&amp