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  2. Drain-waste-vent system - Wikipedia

    en.wikipedia.org/wiki/Drain-waste-vent_system

    In the U.S., every plumbing fixture must also be coupled to the system's vent piping. [1] Without a vent, negative pressure can slow the flow of water leaving the system, resulting in clogs, or cause siphonage to empty a trap. The high point of the vent system (the top of its "soil stack") must be open to the exterior at atmospheric pressure.

  3. Eave return - Wikipedia

    en.wikipedia.org/wiki/Eave_return

    An eave return (also a cornice return) is an element in Neoclassical architecture where the line of roof eave on a gable end comes down to a point, then doubles back briefly. There is a classical version and simpler substitutes. [1] An eve (or cornice) return is in contrast to a full pediment, which spans the full width of the gable.

  4. Ridge vent - Wikipedia

    en.wikipedia.org/wiki/Ridge_vent

    A ridge vent is a type of vent installed at the peak of a sloped roof which allows warm, humid air to escape a building's attic. Ridge vents are most common on shingled residential buildings. Ridge vents are also used in industrial warehouses to help release the hot air and help circulate comfortable air inside the building .

  5. Ventilation (architecture) - Wikipedia

    en.wikipedia.org/wiki/Ventilation_(architecture)

    As more architecture incorporated mechanical ventilation, the cost of outdoor air ventilation came under some scrutiny. In 1973, in response to the 1973 oil crisis and conservation concerns, ASHRAE Standards 62-73 and 62–81) reduced required ventilation from 10 CFM (4.76 L/s) per person to 5 CFM (2.37 L/s) per person. In cold, warm, humid, or ...

  6. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Ventilation on the downdraught system, by impulsion, or the 'plenum' principle, applied to schoolrooms (1899) Natural ventilation is the ventilation of a building with outside air without using fans or other mechanical systems. It can be via operable windows, louvers, or trickle vents when spaces are small and the architecture permits.

  7. Trump laughs off the idea that Elon Musk is usurping him ...

    www.aol.com/trump-addresses-elon-musks-growing...

    After his victory, Trump tapped Musk to head a new nongovernmental office whose mission is to reduce government costs and inefficiencies. Looking ahead, Musk’s wealth could help keep Republicans ...

  8. Andrew Luck reflects on shocking retirement 5 years later: 'A ...

    www.aol.com/sports/andrew-luck-reflects-shocking...

    Andrew Luck's retirement is still one of the more stunning moments in recent NFL history. It was also not an easy process for the man himself.

  9. This Shark Navigator has more than 77,000 5-star reviews ...

    www.aol.com/lifestyle/this-shark-navigator-has...

    High-end vacs — with some models costing upwards of $500 or more — don't come cheap. The Shark Navigator Lift-Away Deluxe is a fan-favorite, and you can snap it up now before your New Year's ...

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