Right down to matching the franchise-mandated shade of red trim, Coryell had the Arlington, Texas Sonic restaurant covered . . . A recent storm had damaged the membrane at the Sonic restaurant in Arlington, and water was leaking all over the kitchen and dining room area. The Coryell team tore off the damaged membrane and inspected for saturated insulation. They put in a 1/2-inch Gypsum Cover Board and Polyiso Insulation where needed. They then installed a 60 ml Duro-Last Duro-Tuff membrane. The team finished by trimming the roof with a red metal trim that matched the red in the Sonic color scheme. The entire project took only four days to complete, and Sonic could run its business as usual the entire time. The Coryell team did such an excellent job that the owner asked them to roof the Sonics he owned in Cisco and Ballinger as well!