Without the right set of captive rollers the doors can be unstable.
Top hung sliding glass door vs bottom roll.
The wall or ceiling is not strong enough to support the weight of the door.
With top hung bi folds all the weight is at the top of the frame.
The main disadvantage of bottom rolling doors is that it is possible to lift the panels from their tracks.
Compared to casement windows can allow less airflow.
One of the most common and popular styles.
Bottom rollers are built into the frame of the door or gate and are designed to carry the entire weight of the door rolling on floor track.
Bottom rolling doors have a lower center of gravity and don t pull down as much weight from the top of the frame.
This gives them a smoother operation and makes them more stable than top hung bi folds.
Never satisfied with the status quo dams incorporated s development team consistently leads the industry with innovations such as vinyl sidelite rails for roll in vinyl glazing the smooth as glass top hung sliding door and stacking glass door systems.
Top hung sliding doors and stacking glass door systems allows for there to be no track in the floor.
Bottom hung doors are essentially easier to install and may prove less costly in the short term.
Used for the following applications.
Your doors will never be completely protected from forced entry and gales.
Rather the weight is mainly at floor level so it is important to keep the channels well maintained.
Flexible ventilation and a classic look.
A classic look and timeless.
This means that even if you take extra security precautions a bottom rolling system will never be as secure as a top hung system.
A top guide system is used to prevent the door from tipping over at the top.
This is because there is no need for the building to carry the door s load up top.
Can be opened from the top or bottom.