If your roof in 0-8 years old this is the coating for you! Gonano shingle saver is guaranteed 10-15 years on your roof, For 1/3 of the cost of your roof if you were to get it replaced today. Shingle saver is for everyone that wants to be proactive and prevent any leaks or wind damage from happening. It also turns class 1 shingles into class 3-4 shingles with just one coating! Gonano does this by increasing the strength and flexibility of the shingle as well as ice, water and snow drainage with its enhanced hydrophobic property. Gonano is made with nanotechnology that bonds with the existing shingles to be able to enhance it unlike any other coating out there.