We can provide you samples of shingles as well as can explain the science behind the design of the shingle, manufacture and waterproof installation technique. For More Details Visit us at https://www.williamtheroofer.com/ or Contact us at 954-343-3324, Address-3905 NOB HILL RD APT,SUNRISE,FL,33351 #WilliamTheRoofer #RoofRepair #RoofingService #Sunrise #FL.