The bifold doors have been around for many years and the unique design has made
Schweiss Bi-Fold Doors the leader in the market. Schweiss Bi-fold Doors have design
features built into the door that make the bifold door stand out in a class of its own.
Below we list some of the designs that make the bifold a good choice.
The bi-fold door frames are raised open with our patented heavy duty lift straps that are
evenly located through out the entire door frame to provide an even lifting of the door
frame. Bi-Fold doors are lifted upward with nylon lift straps rated at 29,000 lbs tensile
strength. The nylon straps attach to the bottom of the door frame at multiple locations
that provide an even lifting of the door frame. These straps never bind / make noise like
a cable lift door.
• Lift straps wrap in a spool to raise and lower which increases the operating speed
and make a very quiet-operating door.
• Lift strap doors DO Not require pulleys a very nice design. Less parts, less problems,
less maintenance.
• Bifold doors have 2 sections, a top half and a bottom half that provide many design
advantages.
Why a 2 piece door?
• A two section door hangs out 1/2 the distance of other doors - putting less stresses
on your building.
When a bifold opens the door frame folds into a V or a wedge acting as a huge truss
supporting each of the 2 piece bifold door sections. The larger the wedge the less
stress it exerts onto the building structure.
Bi-fold doors are designed with 2 sets of hinges to share the loads of the the door
frame. Schweiss believes in strength and safety.
Our door in the open position has multiple lift points that evenly support the door. The
multiple lift points are spaced evenly across the entire width of the door frame that
attaches to the building structure, carrying the door loads more evenly to the attaching
points on the building making less stress on the building.
Bi-fold doors when in the full open position have a slight slope to provide drainage to
your door... The unique design is standard on all Schweiss Bi-fold doors... and is the
only door on the market that allows any moisture, water or snow to flow off the door
section in the open position.
When a door is mounted on a side wall of the building, all the roof moisture that
comes off the building onto your open door, must be able to flow off the door
covering. This is all possible with a bifold door because of the natural slope built into
the bifold door wedge.
Bi-fold doors have a huge advantage when opening, they start by raising upward,
requiring less operating space in the front of your building. The area in front of your
large door opening is very valuable space, the 2 piece bifold allows more usable
space in front of your door opening. Bi-fold doors are simply a real space saver.
Installation for the
aviation industry
"Automatic Bi-Fold" doors are the customers popular choice. No longer is it necessary
to spend wasted time tugging and pulling on sliding doors. The common complaints
about regular doors are; They're too large, they're sagging, they're bowed, I can't
insulate them decently, it takes two people to open them, in the winter I spend many
back-breaking hours shoveling snow away to open my doors, I'm sick and tired of
chipping ice away to get my doors open. A very common statement is, "I love my
building, but hate my sliding doors."
