Folding door
Manufacturer of the Compact door

Compact overhead door 2.0

What is an overhead door?

Overhead doors are made of several jointed panels that roll up on tracks above the access or across the ceiling. These doors come with different rail systems depending on the building and the space available. The tracks can either go straight up above the doorway, with a bend towards the ceiling or they can follow the roof pitch. The over head door is primairly used as a service door but also very popular as garage door.

Sectional door

The overhead door currently is the best selling door on the market. It is known by different names such as sectional door, section door or garage door. There are many manufacturers that produce this type of service door. A number of well-known companies include Hörmann, Crawford, Novoferm, Alpha, Condor and Teckentrup.

History of the overhead door

In the late 70s and early 80s of the last century overhead doors were introduced as an alternative to non-insulated rolling shutters. Because they consist of insulated sandwich panels overhead doors have excellent insulating qualities. Another advantage was the ability to fill the doorframe with glass panels and the installation of a wicket door. Furthermore, overhead doors are very stable and suitable for relatively large door sizes.

Disadvantages of overhead doors

One of the biggest disadvantages of over head doors is the railsystem. The constructional facilities that are often required to enable the installation of a railsystem are quite expensive. In most cases the tracks have to be welded or bolted to the ceiling or the roof structure. The continuous movement of the door can cause serious damage to this structure over time.?Another disadvantage is the use of counterbalance springs. These heavy duty springs are put under a lot of tension to compensate the considerable weight of the door so it can move in its tracks. Counterbalance springs have a very high maintenance level. They have to be tightenend and eventually replaced on a regular basis to prevent the door from sagging.

The Compact door as an alternative service door

The Compact door can be regarded as an overhead door, because the doorpanels are stored ‘overhead’ when the door is open. From the outside it even looks like another overhead door, but all the difference is made on the inside. The main advantage is that the Compact door is a folding door. This means that it saves a lot of space.
Due to the universal railsystem a Compact door always fits and doesn’t require complex structures. Architects have a lot more freedom in design this way and the saved space can be used for other important things. The Compact door doesn’t have maintenance prone counterbalance springs. Moreover, the engine is installed on the self supporting system of the door so it does not require structural adjustments.

Advantages of the Compact door

Depending on the situation there are many advantages in the use of a Compact door to the sectional door. In buildings where crane tracks are used, for example. Compact doors do not block the daylight coming through skylights or windows above the doorway. The extra space above the doorway can be used as storage space. Or for the extra height that is needed for a car lifting platform right behind the door. Or a sprinkler system, a heater over the door or piping and tubes. The possibilities are virtually endless.

Look at the comparison chart and see for yourself

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