Our through the attic kit includes all the components necessary to connect single wall stove pipe to double wall Class-A chimney and vent it through a single story home with a flat or vaulted ceiling and a flat or pitched roof with an attic space. Single Wall Stove Pipe is not included in this kit and is required to connect your wood stove or other heating appliance to the support box. To complete this kit purchase the lengths of pipe needed to run from the support box through the attic and out the roof. In some cases you might find an obstruction in the attic space requiring the use of an Elbow Offset (sold separately).If the chimney extends more than 5 feet above the roof an Extended Roof Brace (sold separately) must be installed. Certified and listed to the UL 103HT standard and designed for appliances that are listed for use with a 2100 Degree Fahrenheit High Temperature chimney system. It can be used with wood stoves, fireplaces, fireboxes, furnaces, boilers, water heaters, pizza ovens and other residential heating appliances fueled by wood, gas, coal or oil. Kit includes (1) Stove Pipe Adapter(1) Support Box (select the 11 in., 24 in., or 36 in. Support Box)(1) Attic Insulation Shield(1) Roof Flashing (select a Flat, 1/12 to 7/12 Pitch, or 7/12 to 12/12 Pitch Flashing(1) Storm Collar(1) Chimney Cap with Spark Arrester. Material: Stainless Steel.