Environment-friendly roof coverings use this opportunity and have actually confirmed to double and even three-way the life expectancy of your roof. The barrier of greenery assists safeguard the water resistant membrane underneath and guarantee your rooftop's life span lasts well for decades. A correctly mounted, irrigated and conserved living roof need to last for as much as half a century. If the plants on your roof covering are passing away, or the weeds are taking over, you need to call P&amp