Fixed frame and opening profiles must be tubular
with sections calculated to resist stress generated by
the location of the building project, the frequency of
daily use, and the dimension of the doors.To ensure
that profiles offer sufficient support and rigidity, they
must be at least 45mm thick.
On the outside, door surfaces must be curved with a
moulded and thicker overlap. On the inside, the doors
must be flat and aligned. Maximum dimensions of
- 144mm around outer edges
- 181mm for the central overlap.
Profiles are mitre-joint assembled. Aluminium alloy
corner cleats are inserted into the tubing.The
manufacturer can choose to fix corner cleats by
crimping, cottering or using studs.Whatever the
system, open ends must be tightened automatically.
Corner cleats are either glued into position with a
two-component epoxy adhesive then sealed with a
liquid mastic containing acrylic polymers (such as
Microgutta or Smalljoint), or bonded into place using
a category 1 elastomer polyurethane mastic (such as