Eco-friendly roofing systems offer this chance and have actually confirmed to increase and even three-way the life span of your roof. The barrier of greenery helps shield the water resistant membrane layer below and guarantee your roof's life expectancy lasts well for decades. An effectively installed, irrigated and conserved living roofing system must last for up to half a century. If the plants on your roof are passing away, or the weeds are taking over, you need to call P&amp