Grease duct joints are held collectively via fashioned V clamps and sealed with 3M Fire Barrier 2000+. The minimal duct thickness is outlined by no matter what code jurisdiction that the project is situated in. Underneath are two code references connected to the demanded thickness and substance variety for grease https://greasetightextractductwor02323.tusblogos.com/37260494/the-smart-trick-of-grease-tight-extract-ductwork-that-nobody-is-discussing