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Hydraulic vs. Bifold
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C-channel Or Purlin To Attach
The Endwall Sheeting To Above
The Bifold Door
Stub Columns
Lateral
Bracing
Side
Column
Door rolls Up
On Face Of
Side Column
Overall
Height Of
Bifold Door
Clear
Opening
Height
Endwall
Building
Main
Frame
Building's Side Columns
Must Be Strong Enough
To Support The Bifold
Door In All Positions
Stub Columns
Heavy Structural
Steel
Back Bracing
Very Important
Header Plate And The
Door Column Must Be
Flush
Dotted Line Represents The
Header Plate
Door
Column
Stubs Welded Or Bolted To The Main Frame Or The
Continuous Header To Support The Door Header Plate
Endwall Sheeting Above
The Bifold Door
Main Building
Frame
Door Column
Finished Floor
Header Plate And The Door Column Must Be Flush
Stubs Welded Or Bolted To The Main Frame Or The Continuous Header To
Support The Door Header Plate. The Door Can Also Be Attached To The
Vertical Stubs Only Leaving The Continuous Header Off, Just Another Way
To Support The Doorframe.
Main Building
Frame
Door Column
Door
Column
Endwall Sheeting Above The Bifold Door
Finished Floor
Main Frame
Continuous Header
For the Bifold Door
Back Brace Square Tubing
Connects Two Main Frames
Stub Column
That attaches to the
Continuous Header
to the Main Frame
Side Columns &
Continuous Header
Faces must be flush
Side Column The Bifold
Door rolls up on.
Maximize your Clear Opening height by placing your Header within the Main Frame
Main Frame
Continuous Header
For the Bifold Door
Back Brace Square Tubing
Connects Two Main Frames
Stub Column
That attaches to the
Continuous Header
to the Main Frame
Side Columns &
Continuous Header
Faces must be flush
Side Column The Bifold
Door rolls up on.
Lateral Bracing
Stub Column
Bottom
Of Stub
Top Of
Header
Clear
Opening
Overall
Height Of
Bifold Door
Side Column
Building Line
Bifold Door Endwall
(Recessed Bifold Doorframe)
Schweiss Bifold Doors can fit any steel buildings, old or new, providing a commercial door that suits your needs.
(A) Flush Mount
Door shall be mounted on the exterior walls of building. - Select one
(B) Face Mount
Door shall be mounted flush with exterior walls of building - Select one
Building Side Column
Inside Building
Slight slope from inside
of building column
Finished Floor
Inside Building
Finished Floor
Inside Building
Finished Floor
Inside Building
Finished Floor
There must be a solid base or floor under the doorframe to seal.
The door sets on the face of the side column or building line.
Inside Building
2" Frame
3" Frame
4" Frame
Door Side Column
Door Sits on this Column
Rubber
Boot
Seal
Depth must go
beyond frost line
Concrete must stick out beyond the door side column.
Concrete floor must be level.
Each door will vary - call factory for details.
T-Hangar Buildings with Doors on Both Sides of the Building
What can be done to keep water our of your building
Slope the apron in front away from the building
Slope the concrete inside of the building
Slight slope from
inside the building
column
Slight slope from
inside the building
column
Sloping the concrete floor outward from
center of building
(Slope degree determined by customer)
1 - No or minimal slope on apron
2 - Locating the seam directly under the bottom rubber seal of the door.
3 - Allowing water to flow back into the building through a seam / crack.
(This is a result of failure to follow precautions 1 & 2 above)
Saw cuts may cause water to flow back into the building.
The combination of saw cuts and no slope may cause water to flow into the inside of your building.
