The new, clean and very effective Dovetail capped glazing system
Here the capping strip and wedge gasket is fitted into the frame of a white finished Dovetail greenhouse.
The toughened glass is first placed into the appropriate space. This is done without putting any rubber or foam seal onto the greenhouse frame. The capping strip is then clipped into position. It is important the correct piece of capping is fitted into the correct part of the frame. (If the wrong piece is fitted in error it is very hard to take it out without dismantling the frame). Next the wedge gasket would be cut to length and pushed into the space between the front face of the glass and the inner face of the capping strip.
The following pictures will help explain this: