Automatic Doors for Buildings: How They Work & Why They Matter

Automatic doors are so common that you probably can’t imagine a world where you have to physically open the door at the grocery store. Developed over the last several decades, automatic doors have empowered us to create hand-free entrances and exits.

If you develop, own, or manage multifamily or commercial buildings, you’re probably always looking for new ways to enhance your property. Automatic doors offer improved safety, added convenience, and a seamless, hands-free entry experience to tenants, visitors, and building staff. Read on to learn more about how automatic doors for buildings work and why they matter.

How do automatic doors work?
Automatic doors require a sensor that detects when the door needs to open. When the sensor detects a cue, it then sends a signal to the door operating mechanism. After receiving that signal, the mechanism opens the door.

Three of the most common types of automatic door sensors include:

Pressure sensors Introduced in the 1960s, pressure sensors use changes in weight or pressure to detect when the door needs to open. Pressure sensors are usually installed as mats or pads on the ground. When a person approaches the door and steps on the mat, the door opens because the pressure sensor detected a change in pressure (the person’s weight).

2. Motion detection and optical sensors Nowadays, most automatic doors operate with motion-detecting sensors. The majority of motion detectors use either microwave pulses or passive infrared (PIR) sensors to detect movement.

Microwave beam motion detectors send out pulses of microwaves that measure the reflections of moving objects. In contrast, passive infrared sensors measure temperature changes to detect body heat.

Sensors with microwave technology are usually more expensive than infrared sensors because they can cover a larger area. However, they are also at risk of electrical interference.

3. Access control or video intercom system

Rather than sensing motion or pressure, the door relies on a signal from an access control system to open. That signal can come from a keycard, a fob a smartphone, or any other device that has been programmed with the access control system.

Automatic doors controlled by cloud-based access control systems or smart video intercoms are ideal for multifamily buildings and commercial properties that only need to grant entry to authorized people. Most multifamily and commercial buildings need an access control system or video intercom for both fire and safety regulations. In addition, access control systems and smart video intercoms improve the resident experience.

Additionally, when the access control system or video intercom is connected to the cloud, building staff enjoy the added convenience of managing property access permissions remotely from a web browser. As a result, staff members don’t have to physically visit the building to update their system. How does a sensor make the door open? Once a sensor has detected that someone needs to enter the building, it then sends a signal to the door opening mechanism.

The door opening mechanism is powered by an electric motor, which opens the door accordingly with the type of door you have.

Types of automatic doors include: Sliding doors: Ideal for two-way traffic, automatic sliding doors may be hung from overhead tracks or mounted with tracks and rollers. Swinging doors: Ideal for one-way traffic, automatic swinging doors open either in or out.

Folding doors: Ideal for small entrances where space is a concern, automatic folding doors fold up onto themselves to create a passageway. Revolving doors: Ideal for high-traffic areas, automatic revolving doors enable simultaneous exit and entry.

The right door for your building depends on the type of pedestrian traffic at your property and the space available. Benefits of automatic doors for buildings We’ve established how automatic doors work, but now let’s understand why that matters. Why should you care about automatic doors, and why are they worth the investment?

Some of the benefits of automatic doors include: Energy savings: Automatic doors can help preserve conditioned air and therefore reduce your building’s heating and cooling costs. Touchless entry: With an automated door, no one has to touch shared surfaces like door handles. This helps prevent the spread of germs.

Convenience: People always appreciate the convenience of hands-free building entry, especially when carrying grocery bags, wrangling their kids, or bringing home a new piece of heavy furniture. How do automatic doors enable touchless entry?

Automatic doors enable touchless entry by allowing people to pass through the entryway without touching the door. Apartment residents appreciate touchless entry because it eliminates the need to touch high-risk surfaces, making your property safer for all. If you want to implement touchless entry at a multifamily building or a commercial property with restricted access, you’ll need

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