Environment-friendly roofing systems supply this opportunity and have verified to increase or perhaps three-way the life expectancy of your roof. The obstacle of greenery assists secure the waterproof membrane beneath and ensure your rooftop's life span lasts well for decades. An effectively mounted, irrigated and kept living roof covering must last for approximately 50 years. If the plants on your roof are dying, or the weeds are taking over, you need to call P&amp