Daylight pop-hole doors are well insulated because they are made out of 25 mm polycarbonate (opal or clear). Around we mount a 2 mm thick metal profile, this give the slides stability.

Daylight pop-hole doors can be made in many different sizes. Standard the slides open 500 mm.

Pop-hole doors close draught free because of the special closing mechanism.

You can see more pictures here.

 

You can find more information in the brochure.