Duct opening detail drawing is given in this AutoCAD file

Duct opening detail drawing is given in this AutoCAD file. Waterproofing flashing, fan motor housing, rubber gasket, steel frame, slope detail, 25mm thickness rigid insulation, 40mm standing seam riveted, bolted on 300mm centers with mastic sealant, and other details are mentioned. For more details download the AutoCAD drawing file from our cadbull website.