Entries by Door Systems Writer

Tallest towers in San Francisco, mapped

The city’s skyline has always been swoon-worthy, but over the last decade, the view has become even more grand—not to mention crowded—as skyscrapers have sprouted taller, taller, and taller. From the Salesforce Tower to 555 California, San Francisco’s high-rises have set examples of height and grandeur.

Fire-protection systems

Smoke-control systems are designed to control smoke during a fire incident in order to contain danger and allow the building to be safely evacuated. Until recently, smoke control has been managed by the building automation system (BAS). But the trend over the last few years has been to shift that control to the fire-protection system.

DSI Smoke Curtains Innovative Features

Our gravity fail-safe DSI Smoke and Fire Protective Curtains have innovative features and the highest technical specifications available yet offer cost-effective and flexible solutions to fire and smoke control. Our curtains systems are designed to be discreet, robust, and simple to operate and maintain. DSI Smoke and Fire curtains not only are lightweight and compact […]

History of the Twitter Building

How the internet reshaped Market Street’s Art Deco monolith The Twitter building, once known as the Western Furniture Exchange and Merchandise Mart, got its start as a Depression-era furniture showcase This is a story about adaptive reuse, unplanned obsolescence, and the way one building can straddle two centuries and come to embody the fickle nature […]

The most polarizing buildings in San Francisco

Love ’em or loathe ’em, these structures won’t be ignored Thom Mayne’s jarring yet alluring Federal Building, an 18-story structure with a curtain of perforated steel punctuated by a large square cut-out framing a privately owned public park, and the Glen Park BART station, a concrete public transportation dream, divide many.

Top Causes of Commercial Building Fires

Commercial fires are almost certain to make headlines. While structures, alarms, safety equipment and response times are far superior to those of just decades ago, commercial fires are still happen. What are the likely causes of these fires in commercial structures like offices, stores, hotels, warehouses and manufacturing plants? Arson Intentional fires, or arson are […]

LAFD Commercial Structure Fire

Just after 03:30​ hours, Los Angeles Fire Department Battalion 1 companies were dispatched to a reported structure fire in 17’s first-in at the intersection of Long Beach Ave. x Washington Blvd. E14 was first on-scene and unable to locate any signs of fire. Upon further investigation, E17 found an outside rubbish fire impinging on a […]

Union Bank Plaza undergoes $20 million renovation

The first phase in the historic preservation-minded rehabbing of Union Bank Plaza (UBP) in Downtown Los Angeles has wrapped up. Completed in 1967, the 40-story office tower, designed by Harrison & Abramovitz and Albert C. Martin & Associates in the International style, became the first L.A. skyscraper to be named as a Historic-Cultural Monument (HCM) […]

Understanding Building Construction Types

Buildings are broken down into five categories (Types 1–5), ranging from the stoutest of construction to that which will most likely fail rapidly when under fire conditions. Each building type has specific characteristics that ladder companies must be familiar with so that they are able to ventilate the building in the safest and most efficient […]