The solid door panels are constructed from galvanised steel sheets bonded together with high density CFC free polyurethane foam to
provide a 'U' value between 0.24W/m²K & 0.4W/m²K with a thermal break at each joint.

Vertical and horizontal tracks, hinges, brackets, cappings and hardware are galvanised, with the assembled door running on
adjustable galvanised roller carriers bolted to each individual panel. The door is perfectly balanced by means of helical springs at high
level, mounted on galvanised steel plates and quality bearings to give smooth and quiet operation. Rubber seals are fitted to the top,
bottom and both sides of the door for good protection against weather. The internal face of the door is bright white and the external face
is available in a wide range of finishes and colours. The 'Thermalex' door is available in 40mm thick panels dependant on the degree
of insulation required. Each door is fitted with two cable breakage safety devices which prevent the door from dropping
should the lifting cables fail.

Operation:-
Manual operation is by means of a continuous galvanised haul chain, through single or double reduction gearing or by means of
push up / pull down. All manually operated doors are fitted with a recessed lifting handle and an internal shoot bolt lock.

Electrical operation is by means of high quality three phase motor and gearbox, incorporating six integral limits. All controls are low
voltage and have open, close and emergency stop buttons as standard. Emergency manual over ride is provided as standard to allow
operation of the door in case of power failure.

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