Every interested individuals, whether they are part of the rolling door industry, or not should be familiar with the rolling door/ gate terminology. Knowing these terminology will help you  to effectively communicate with other people on the same industry and most especially when operating and determining the problem of your rolling door.

General

This Technical Data Sheet provides facility managers with guidelines for evaluation of rolling fire doors designed and tested to provide the automatic closing fire protection indicated on the fire door label. The automatic closing of the door must be tested at the time the door is installed, and the door shall be inspected and tested not less than annually as required by NFPA 80. This requirement applies to all fire doors – even those that are not used and remain in the closed position. The doors must be checked regularly for conditions that may affect the operation of the door. DASMA recommends that the following procedures be observed:

As the leaders in overhead door installations for high-end multi-family residential buildings in New York City, North Jersey, Southern Long Island, Westchester & Rockland Counties, we are also the leaders in emergency service. Now and then we receive phone calls past 8 PM where the overhead door is either stuck open or closed. Once in a while, we receive phone calls when the doors look like this: 

You see fenestrated or perforated rolling steel doors in applications like retail store fronts, pharmacies, healthcare, schools, government buildings, etc.  The fenestrations and perforations provide air flow. 

Why is Air Flow important?

• Air flow depends on the pressure differential from one side to the other side of the door. This varies from facility to facility.

– Example: many facilities want to regulate air temperature; by allowing the air to flow they avoid hot spots

– NOTE: rolling steel doors do not carry an air flow rating, rather the doors provide the open area.

What other factors should be considered when specifying a rolling door with perforation or fenestration?

• Security

– The rolling door/grille provides security against theft or unwanted access

• Light infiltration

– Allows natural or ambient light through the door and can reduce lighting expenses

• Visibility

– Allows visual access through door; while still maintaining security. Allows retailers displays to be seen even when they are closed.

Source: PIB#10459

FENESTRATIONS

Last week I received a frantic call from someone who needed their kitchen rolling counter door repaired in Manhattan. He called a few other overhead door vendors but was unsatisfied with their service and response time. This door is located inside a Class A Building at a Fortune 500 company in Manhattan. Upon hearing that, I informed the customer we repaired all the loading dock and high-speed doors at this location. When he found out that little but important piece of information he was extremely ecstatic.