Grease duct joints are held with each other by way of formed V clamps and sealed with 3M Fire Barrier 2000+. CE & UKCA marked Promat calcium silicate boards getting gotten a CE marking for meant use Form nine: Technical providers assemblies in buildings All of our fire rated duct https://mylesrhviv.blogdiloz.com/35853508/a-simple-key-for-grease-tight-extract-ductwork-unveiled