The most important consideration for any door installer is time spent on site. Unlike a traditional insulated sectional door the Compact folding door is self-supporting from its side rails. They are simply fixed to the vertical face of the door opening. The Compact door does not require overhead rails fixed to the roof structure to support the door panels or balancing springs when opening. It is therefore quicker to install and offers reduced maintenance for the building owner.
For the complete overview of all advantages, you here find the download.