Pressurization becomes increasingly necessary at altitudes above 12,500 to 14,000 feet (3,800 to 4,300 m) above sea level to protect crew and passengers from the risk of a number of physiological problems caused by the low outside air pressure above that altitude.
1. (Architecture) the art and science of designing and superintending the erection of buildings and similar structures. 2. (Architecture) a style of building or structure: Gothic architecture. 3. (Architecture) buildings or structures collectively. 4. the structure or design of anything: the architecture of the universe.
from a spec writer. What ARE specifications? Specifications are âthat portion of the Contract Documents consisting of the written requirements for materials, equipment, systems, standards and workmanship for the Work, and performance of related services,â according to AIA Document A201-2007, the General Conditions of the Contract for Construction.