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  2. Attic - Wikipedia

    en.wikipedia.org/wiki/Attic

    Louvered attic vent in a gable Modern building codes permit both vented and unvented attics in all climates, if a building is otherwise correctly constructed. [ 5 ] However, unoccupied attics should usually be ventilated [ 6 ] to reduce the accumulation of heat and moisture that contribute to mold growth and decay of wood rafters and ceiling ...

  3. Pressurisation ductwork - Wikipedia

    en.wikipedia.org/wiki/Pressurisation_ductwork

    There are two means of providing fire-resistance rated ductwork: Inherently fire-resistant, or proprietary factory assembled ducts which are made of sheet metal shells filled with mixtures of rockwool, fiber and silicon dioxide

  4. Attic ladder - Wikipedia

    en.wikipedia.org/wiki/Attic_ladder

    An attic ladder (US) or loft ladder (UK) is a retractable ladder that is installed into an attic door/access panel. They are used as an inexpensive and compact alternative to having a stairway that ascends to the attic of a building. They are useful in areas with space constraints that would hinder the installation of a standard staircase.

  5. Attic fan - Wikipedia

    en.wikipedia.org/wiki/Attic_fan

    An attic fan installed underneath a roof. A powered attic ventilator, or attic fan, is a ventilation fan that regulates the heat level of a building's attic by exhausting hot air. A thermostat is used to automatically turn the fan off and on, while sometimes a manual switch is used. An attic fan can be gable mounted or roof mounted. Additional ...

  6. The global challenge we should be talking more about.

  7. Michael T. Smith - Pay Pals - The Huffington Post

    data.huffingtonpost.com/paypals/michael-t-smith

    From January 2008 to December 2012, if you bought shares in companies when Michael T. Smith joined the board, and sold them when he left, you would have a -6.7 percent return on your investment, compared to a -2.8 percent return from the S&P 500.

  8. Frank D. Trestman - Pay Pals - The Huffington Post

    data.huffingtonpost.com/paypals/frank-d-trestman

    From January 2008 to June 2010, if you bought shares in companies when Frank D. Trestman joined the board, and sold them when he left, you would have a -32.2 percent return on your investment, compared to a -26.9 percent return from the S&P 500.

  9. Passive ventilation - Wikipedia

    en.wikipedia.org/wiki/Passive_ventilation

    Both supply and exhaust happened through an unconditioned attic space, with exhaust air being extracted at ceiling height and air being supplied at floor level through a vertical duct. The device was found to provide sufficient ventilation air flow for a single family home and heat recovery with an efficiency around 40%.

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