Apple Campus 2 tour looks at its unique passive ventilation, more

Apple Campus 2 tour yields extraordinary building materials statistics

A fresh tour of the Apple Campus 2 structure by Pop Sci provides a closer look at its its passive cooling system. The video tour shows how the building's architecture has been designed to utilize both concrete and a special ventilation system to keep the working environment cool without using any electricity. Also getting a closer look are the enormous glass panels that encapsulate the over 1-mile around circular structure, as well as a run-down on some of the incredible statistics associated with building Apple's new multi-billion-dollar home.

The building's signature passive cooling system relies on 60,000 pound pieces of hollow concrete slabs that effectively allow the building to "breathe." While Apple will save a considerable amount of energy with its passive cooling system, there is a back-up air conditioning system built into the structure to control temperatures when they are at extremes not within the normal operating guidelines.

Even then though, its eventual 13,000 employees can use electricity comfortable in the knowledge that 75 percent of it will be produced using massive arrays of solar energy covering most of its sky facing surfaces for a total of 16-megawatts of power. The rest will come from 4-megawatts produced from biogas fuels and solar electricity sourced from a nearby solar farm.

Apple's Glass House by PopSci

Among the other incredible statistics that mark the massive structure is that there is 1.23 million square feet of glass being used in its construction, along with 3,000 glass panels typically double the size of typical standard commercial glass panels used in buildings like this. The heaviest of these glass panels is 7,000 pounds. To keep the curved glass absolutely crystal clear, they were not curved as they normally are during the tempering process, but during final step of lamination by heating it to 600 degrees celcius (1,112 degrees Farhenheit).

In total there are 4,300 concrete slabs required for the floors and ceilings, with the heaviest of these coming in at 60,000 pounds. Each slab is typically around 13 feet by 40 feet, which all sounds impressive. Until you learn that the restaurant's steel reinforced doors weigh in at 330-tons and are 92 feet tall. When completed, the doors will span an incredible 60,000 square feet.

When completed at the end of 2016, Apple will have spent an estimated $5 billion on the new campus, which will house its major operations from early 2017.

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