The team at Movable Glass Walls Inc. have manufactured, sold and installed both top hung and bottom rolling types of Folding Glass Door systems. We have experienced both first hand and observed how each one has performed in everyday situations.
Benefits of Weight Load on Bottom Rollers
Bottom Rolling Doors help alleviate the pressure on the top lintel. This avoids deflection from the beam and any subsequent interference of the smooth operation of the doors. It also makes it easier for builders to calculate the weight on the structural foundation . In order to avoid any issues of the top popping out, the Folding Glass Wall system has incorporated a captive top guide channel.
Eliminating the Fear of Lintel Deflection
Some Folding Glass Wall systems have incorporated top rolling mechanisms in order to reduce the height of the door threshold. They do this because there is customer demand for seamless thresholds from indoor to outdoor floor levels. But again with good design and engineering Movable Glass Walls Inc. have achieved:
- bottom rolling system has eliminated deflection pressure on lintel
- very low or flush threshold
- compression seals to eliminate draft
The image below shows our Flush Thresholds that also allows for bottom rolling. The team at Movable Glass Walls Inc. have not experienced any problems with the bottom rolling tracks becoming impeded by dirt or debris.