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Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound. In the US, it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations. Outside the US, the ISO Sound Reduction Index (SRI) is used.
Magnesium oxide, more commonly called magnesia, is a mineral that when used as part of a cement mixture and cast into thin cement panels under proper curing procedures and practices can be used in residential and commercial building construction. Some versions are suitable for general building uses and for applications that require fire ...
A09 Pollution Infiltration Management topic, entrance way design such as 3 meters' air door and to slow movement of air from outdoor to indoor by building vestibule or revolving doors, air curtain and management by wet cleaning once a week, vacuuming once a day provides 1 point and envelope of building that is designed to mitigate outside air ...
Closing your interior doors can help disperse pressure throughout the home and reduce the overall force stacked up against your roof -- basically your first line of defense against Mother Nature ...
A pair of headphones being tested inside an anechoic chamber for soundproofing. Soundproofing is any means of impeding sound propagation.There are several methods employed including increasing the distance between the source and receiver, decoupling, using noise barriers to reflect or absorb the energy of the sound waves, using damping structures such as sound baffles for absorption, or using ...
Fiberglass is the most common residential insulating material, and is usually applied as batts of insulation, pressed between studs. Health and safety issues include potential cancer risk from exposure to glass fibers, formaldehyde off-gassing from the backing/resin, use of petrochemicals in the resin, and the environmental health aspects of ...
ISO 3795:1989 Road vehicles, and tractors and machinery for agriculture and forestry — Determination of burning behaviour of interior materials; ISO 3796:1999 Ships and marine technology — Clear openings for external single-leaf doors; ISO 3797:1976 Shipbuilding — Vertical steel ladders
Swinging glass doors are a better choice than the typical sliding glass doors, since they offer a much tighter seal, [7] but glass – even the best type of glass, chosen according to the climate zone – is always a poor insulator, making doors based on them a poor choice from a thermal comfort perspective.
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