Although sheet metal and fiberboard ducts are rigid varieties of ductwork, flex ducts are tube-shaped, insulated, and bendable. They’re ideal for oddly formed or challenging spaces and can be connected to rigid ductwork connected to an air offer. Do-it-yourself ductwork substitute is prohibited in most states without a license. Use https://gunnerfxmao.blogdanica.com/29830392/5-easy-facts-about-ductwork-specialists-described