Bottom Rolling Hangar Doors-Door Engineering Style

What makes our Bottom Rolling Hangar Door superior to the other manufacturers? Well, for starters our hangar doors are shipped in factory fabricated modular-assemblies that results in a higher quality hangar door and less job site erection time saving money and ensuring a quality end product!  The other guys will send you your door essentially in pieces for field assembly. Same goes for the bottom rails & top tracks. We will ship your bottom rails in 30-foot sub-assemblies with the cross ties welded to the rails every 5 feet and the top guides are shipped in 40-foot sub-assemblies with the cross bracing welded to the W4x13 beams every 5 feet.   This factory fabricated sub-assembly design insures proper centerline-to-centerline spacing for the rails & guides which therefore substantially reduces the installation time of these components. For the rails, we also include the rail anchors and expansion bolts, which are not required to be embedded in the first pour of concrete (that’s just us going the extra mile).  In addition, we provide the rail grout forms that are field attached to allow for a clean and level second pour of concrete.  Included with the top guides are factory supplied closure panels that allows for the soffit sheeting to be field attached providing a weather tight seal.

Top track assembly

Top track assembly

Bottom rails with included grout forms

Bottom rails with included grout forms

The weatherseals we use are also top notch and factory installed! Vertical door-to-door weatherseals between adjacent door sections, at the jamb and at the center are opposing bulbs of two-ply cloth-inserted neoprene with a resilient urethane foam core.  These seals compress against each other to provide a seal far superior to conventional flap type seals that our competitors use.  In addition, these bulb seals do not rub across the hangar door sheeting while the door is in motion. Door Engineering only uses horizontal flap seals at the head and sills.

factory installed weatherseals

Factory installed weatherseals-vertical bulb seal and horizontal flap seal

We provide a factory wired and prepped electric motor operator, which drives a double flange steel wheel on the bottom rail, with integral brake and emergency manual operation capability (quick disconnect).  Controls include magnetic reversing starters, thermal overload protection, control circuit transformer, relays, disconnect switch, and NEMA 4 enclosure.  All wiring internal to the powered door section(s) is factory tested. A factory prepared draped SO cord power supply system to the door operators is also included.

Bottom Rolling Hangar Doors are ideal for small to large hangar applications because of the multiple configurations that are available.

Bottom Rolling Hangar Door on FBO

Finished Hangar Door on a FBO

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Throwback Thursday-Hangar 9 Refurbishment

Hangar 9 Refurbishment Completed

Hangar 9 Refurbishment Completed. Photo courtesy of McNely Construction Company

Our customer, Tectonic Management Group,  asked us to assist in providing the perfect solution to refurbish the existing hangar doors on Hangar 9 located in Oakland, California. The hangar was initially constructed for the navy back in 1942! The customer’s main concerns for the new refurbished hangar doors at this facility were safety, security, longevity, ease of use, retaining the look of the original doors and an expedited timeline to deliver. Door Engineering and  Tectonic Management Group visited the job site along with the General Contractor, McNely Construction Company, to inspect the  hangar doors and determine if re-using the existing door framing would meet current building codes as well as to see which components would need replacement.  After the site visit, it was concluded that the existing hangar door framing would meet today’s codes and by replacing the existing bottom wheels, top guide rollers, perimeter weather seals, lower interior/exterior wainscot and by adding new Drop-In Operator Assemblies, these doors would last another 60 + years.

Hangar 9 prior to refurbishment

Hangar 9 prior to refurbishment

 

Hangar 9 prior to refurbishment

Hangar 9 prior to refurbishment

 

Hangar 9 prior to refurbishment

Hangar 9 prior to refurbishment-Photos courtesy of McNely Construction Company

Door Engineering was able to resolve each concern the customer had in this refurbishment:

Safety:  The operators are located in door sections 4 and 5, when viewed from the exterior and counting left to right. Located at each operator assembly are constant pressure open and close pushbuttons which means moving the door requires the person operating it to apply constant pressure to the pushbutton while walking with the door as it moves, thus insuring this person a clear view of the doors path.

Security:  At door sections 4 and 5 our new Drop-In Operator assemblies lock down the door when it is not in use by applying the  brakemotor and with the  “Linked-In” bumpers interconnecting the door sections. The doors are then secured, protecting the people and property.

Longevity:  50 plus years in designing, building and satisfying customers with refurbishment components for bottom rolling hangar doors is the definition of longevity.Our factory fabricated Drop-In Operator assemblies, along with our new top rollers and sealed bottom wheel/housing assemblies meet today’s building deflections and codes with years of trouble free, safe and secure service

Ease of use:  Operating the doors is as simple as pushing a button! The left side group of doors (when viewed from the exterior) is controlled by the pushbutton station located above the operator on the interior side of door section 4 and the  right side is controlled by the pushbutton station located in door section 5. By simply pushing the ‘Open’ pushbutton  for the side you want open, each door section will move and pick-up the next section and then stack behind the pocket wall on that side of the opening.  This will give one one half clear width opening. For a full clear width opening, the personnel will  go to the pushbutton station for the other side and follow the same procedure.  Closing the doors is performed by pressing the ‘Close’ pushbutton at these same locations.

Expedited:  Our design, management and manufacturing team pulled together to meet the client’s schedule.  Our certified installers, TBS Industrial Doors, then beat the required dead-line completion date!

Hangar 9 Refurbishment Completed

Hangar 9 Refurbishment Completed- Photo courtesy of McNely Construction Company

 

Contact us today at 800-959-1352 to discuss your project!

 

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Ownership Change-Press Release

Senneca Holdings (“Senneca”) is proud to announce that it has acquired Door Engineering. Headquartered in Kasota, Minnesota, Door Engineering designs and manufactures customized industrial, commercial, aviation and specialty doors. With over 10,000 door systems installed worldwide, Door Engineering’s door systems are built for not only long-lasting durability but also for low maintenance, speed, and safety.

Jeffrey Stark, Chief Executive Officer of Senneca, said, “We are excited to add the Door Engineering product line to the Senneca offering. As a leading manufacturer of custom specialty doors in North America, adding Door Engineering products will deepen our penetration into the emergency response, municipal, commercial, and aviation vertical markets. They have been making custom specialty doors for over 50 years, and we look forward to continuing that tradition in Minnesota.”

ABOUT SENNECA HOLDINGS

Founded in 1932, Senneca is a leading manufacturer and distributor of specialty doors for diverse and growing industries. Senneca’s superior design and breadth of specialty doors allows Senneca to offer its customers custom products in the shortest lead times. Senneca’s family of brands includes Chase™, CDS Commercial Door System™, Chem-Pruf™, Eliason™, Enershield™, Rubbair™, Thermoseal™ and Tiger™ and are supported by ten manufacturing facilities and one corporate office. For more information about Senneca, visit www.senneca.com.

ABOUT AUDAX PRIVATE EQUITY

Since its founding in 1999, Audax Private Equity has been focused on building leading middle market companies. Through its disciplined Buy & Build approach, Audax seeks to help platform companies execute add-on acquisitions that fuel revenue growth, optimize operations, and significantly increase equity value. Audax Private Equity is an integral part of Audax Group, an alternative asset management firm specializing in investments in middle market companies. With offices in Boston, New York, and Menlo Park, Audax Group has over $10 billion in assets under management across its Private Equity, Mezzanine, and Senior Debt businesses. For more information, visit the Audax Group website at www.audaxgroup.com.

Contacts

Senneca Holdings
Chip Hillman, 513-603-2981
Director of Corporate Development

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Fire Station Near You?

We get asked a lot from customers on where they can find the nearest fire station to them that has our doors and we are happy to help them but we also love making things super easy for people. So we did just that! We created an interactive map with all of the fire stations in North America that feature our Four-Fold doors-currently 379 and counting! Besides the location you can also see pictures of the station, if available, to see how great they look. You can find the map on our Four-Fold door product page, go there now to check it out! 

2016-07-25_1543

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50 Years!!

We have been in business for 50 years this year! It is an accomplishment that we are extremely proud of. In those 50 years we have manufactured nearly 10,000 doors for everything from fire stations to hangars to amusement park rides. We have doors in all 50 states and in 14 countries around the world. Through the years we have seen many changes in how we make doors but one thing has remained; they are made to be of the highest quality in the industry.

We invite you to submit any stories or photos you have of any projects that you have done with us using this link:https://form.jotform.com/61804452092149
Here is to the next 50 years!

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Aviation hangar Refurbishment Success!

Door Engineering along with TBS Industrial Doors was approached to update an existing hangar that our customer purchased. They needed the hangar to meet today’s safety operating standards and current building codes.

Prior to refurbisment

Prior to refurbisment

The customer’s main concern for the new hangar door at this facility was safety, security, longevity, ease of use and simplicity.  Another important factor was that the door must be sized to allow their clients aircraft to enter the hangar bay without having to move/disrupt the other aircraft already stored.

To determine the best solution for the customer we did a site inspection of the existing hangar and learned more about the aircraft soon to arrive. After reviewing everything our answer was simple; the H-Series, Model HWU520 “Smart Rails” door system was the perfect fit. This is a five-section, unidirectional, electrically operated door that opens either to the right or left hand side.

Exterior elevation of bottom rolling hangar door after refurbishment

Exterior elevation of bottom rolling hangar door after refurbishment

Safety is always a top concern, this is why each leading edge of these power operated door sections is a full height safety edge. In addition, located at each operator assembly are constant pressure open and close pushbuttons. This requires the person operating the door to apply constant pressure to the pushbutton and walk with the door as it opens or closes, thus insuring this person a clear view of the doors path.

To remove any security concerns, there is an exterior pushbutton pendant Station that requires a key to active either the open or close pushbuttons. Access from the exterior cannot be achieved when the door sections are in their fully closed position!  Our “Quick-Disconnect” operators lock down the door when not in use by the brakemotor and with the “Linked-In” bumpers interconnecting the door sections, all the doors are secured protecting person/property.

With all the options this door system provides, it is still extremely easy to use.  To move aircraft in on the left side of the hangar bay you open door section 1 by pressing the open pushbutton, door section 1 will pick-up and move section 2, pick-up and move section 3, 4 and then stack behind door section 5 giving the full clear width.  To move aircraft in on the right side of the hangar bay you open door section 5 by using the key to activate the exterior pushbutton pendant station, press the open pushbutton, door section 5 will pick-up and move section 4, pick-up and move section 3, 2 and then stack in front of door section 1 giving the full clear width.

The customer had wanted a door system that would work for them for years to come. Well, we have been designing, building and meeting customer’s needs with our bottom rolling hangar doors for 50 years! Our factory fabricated W-beam top tracks and bottom rail assemblies, along with our modular door framing design, telescoping top rollers, and sealed bottom wheel/housing assemblies meet today’s building deflections and codes, with years of trouble free, safe and secure service. Our door systems are the definition of longevity.

The customer was more than happy with the solution that Door Engineering and TBS Industrial Doors provided and even happier when the project was completed ahead of their tight deadline!

Interior elevation of Bottom Rolling Hangar Door

Interior elevation of Bottom Rolling Hangar Door after refurbishment

 

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Grain Facility+Four-Fold Door=Winning Combination

With the GEAPS Exchange right around the corner we thought we would share a project spotlight on a grain facility!

This grain Company needed doors for a new grain facility. On their list of requirements for a door was high speed & our Four-Fold doors obviously provide that and then some! Two of our 14′-0″ x 14′-0″ solid sheeted Four-Fold doors were used on the facility which handles  corn, white wheat, red wheat, soybeans and black beans.

 

Grain Facility Solid Sheeted Four-Fold Door

Solid Sheeted Four-Fold Door

Grain Facility Solid Sheeted Four-Fold Door

Overview of facility. Closed Four-Fold is on the right and an open Four-Fold door is in the middle.

Grain Facility Four-Fold door

Four-Fold door in open position

 

Be sure to visit us at the GEAPS Exchange, we will be in booth #1777!

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Parking Garages Need Four-Fold Doors

Bold statement? Maybe, but also true in many situations. All the advantages that the Four-Fold has to offer over overhead doors benefits a parking garage as much as it does say, a Fire Station. The quick opening speed is perfect for travelers who are in a hurry, the horizontal movement means they will get thru safely & without damaging your door and the high cycle ability means you don’t have to worry about your door breaking in the middle of a busy day. In a time where designing pleasing to the eye buildings is more important than ever before, the Four-Fold doors can match any design or look you want to achieve which means they’ll stick out in the best way.

Four-Fold Parking Garage Door

Parking Garage Four-Fold Door with Grille inserts

Four-Fold Parking Garage Door

Custom wood panel Parking Garage Four-Fold door.

Four-Fold Parking Garage Door

Solid sheeted Four-Fold parking garage door

Four-Fold Parking Garage Door

Custom panel design to match original building doors

Contact us to discuss your next parking garage!

dooreng@doorengineering.com  I  800-959-1352

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Hangar Door Project Spotlight // Duncan Aviation

Duncan Aviation FBO with Door Engineering bottom rolling hangar doors.

Photo credit: Duncan Aviation

Duncan Aviation is a big name in the Aviation industry so we were honored to be able provide 4 bottom rolling hangar doors for their Lincoln, NE FBO. We worked with Techtonic Management Group, Inc on the design of the door systems to make sure Duncan Aviation was getting the best door system for their needs. 

Each of the four doors were our HWB640 model and fit the opening size of 190′-0″x 28′-0″. The HWB640 model is our “smart rail” hangar door design with six sections. The placement of the Quick Disconnect Operator is what makes this “Smart Rail” hangar door design unique.  Door sections 1, 3, 4, and 6 all have the operator assemblies mounted within the door framing. Electrical power to these operator assemblies is given by the use of an interior mount electrical feed rail that provides the power to both inner door sections 1 and 6. The incoming power for center outer door sections 3 or 4 is provided by a draped SO electrical cord coming from either door sections 1 or 6. Doors can be operated by the door mounted pushbutton stations.

This design also offers the most flexibility of all of our hangar door systems. Due to the operating system the door sections can be stacked in numerous configurations allowing various hangar bay access. All this is done without requiring door pockets!

The hangar door installation went smoothly thanks in part to the highly experienced Dan’s Overhead Doors and More. 

You can read the article in HangarSphere full more information on the entire FBO project. 

*Photo Credit: Duncan Aviation

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Custom Door Project Spotlight: Bet Shalom Synagogue

The beautiful Bet Shalom Synagogue, near Minneapolis, was symbolically designed with the sanctuary at the center of the building.  A beautiful glass, moveable wall system was created to divide their worship area from the common room.

Through close collaboration between Door Engineering, the architects, the engineers and the wall panel manufacturer, Door Engineering developed a door that split   horizontally at the center. With the turn of a key, a uniquely designed operator and track system moved the upper half of the door above the opening into the ceiling and the lower half of door through the floor into the basement. When the   sanctuary wall is closed, a double pass door allows for passage from the sanctuary to the common room.

Custom Vertical Lift Door

Interior view with door closed

Custom Vertical Lift Door

Exterior view with door closed.

Custom Vertical Lift Door

Side view with door all the way open

Custom Vertical Lift Door

Side view with door halfway closed.

Custom Vertical Lift Door

Side view with door halfway closed

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