- .3 Cope accurately and securely weld butt joints of mullions, transom bars, centre rails and sills. SkyPower Corporation Digby Wind Power Project Contract 090630.00 Metal Doors and Frames Section 08 11 14 Page 8 June 2009 .2 Reinforce do...
AI summary The text outlines specific welding and installation requirements for metal doors and frames, including reinforcement with vertical stiffeners, accurate welding of butt joints, and adherence to installation guides and standards such as NFPA 80 and CSDMA.