Haslet Frames for a Window in a Metal Building

Haslet Frames nest tightly into the ridges of metal buildings. Although often used for cutouts for exhaust fans, the Haslet Frames can improve the appearance of windows in metal buildings and barndominiums that use J-channels.
Here is an additional video with more details about the Haslet One-Piece Frame.
• Haslet Frames for Meta...

[@eddiesanmarcosr8301]

Why did you leave the j channel?

[@WindRider1]

Question Mark? Did you do this for demonstration only or is this a permanent addition? If a permanent addition, why didn't you remove the old J channels?

[@EasyAim1]

This is a permanent installation of the frames. The existing J-channels are embedded in the window structure. It would require removing the window at a minimum.