This video demonstrates joining the head and jamb pieces of a 3-sided Steelcraft F Series 3-sided masonry frame using the backwelding technique. For more information, visit our web site at www.allegion.co....
Seems like the back-welding method is stronger (more weld mat'l left in place after grinding) and requires less grinding overall than face-welding -- why isn't the technique more popular? Is significantly more labor or skill required? I'm a doors and hardware consultant, and I'm seeing a lot of heavily-ground dished-in frame faces in the field -- I don't like it, and I reject them where possible. Clients are getting less than they paid for if the frame is paper-thin at the corners, and I'm especially concerned about compromised fire assembly frames.
Yes it’s a lot more labor intensive. Face welds are standard at my job but if it doesn’t grind off smoothly then bondo the joint. That way it looks good and isn’t paper thin
The name is “back welding”, which refers to welding on the back (inside) of the frame pieces. Welding on the front (outside) is called “face welding” (welding on the “face” of the frame).
