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  2. Flood opening - Wikipedia

    en.wikipedia.org/wiki/Flood_opening

    Most regulatory authorities in the United States that offer requirements for flood openings define two major classes of opening: [1] engineered, and non-engineered. The requirements for non-engineered openings are typically stricter, defining necessary characteristics for aspects ranging from overall size of each opening, to allowable screening or other coverage options, to number and ...

  3. Drain-waste-vent system - Wikipedia

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

    In-line vent (also known as an island fixture vent, and, colloquially, a "Chicago Loop", "Boston loop" or "Bow Vent") is an alternate method permissible in some jurisdictions of venting the trap installed on an under counter island sink or other similar applications where a conventional vertical vent stack or air admittance valve is not ...

  4. Ventilation shaft - Wikipedia

    en.wikipedia.org/wiki/Ventilation_shaft

    Chipping Sodbury Tunnel ventilation shaft Swan St. ventilation shaft on the Burnley Tunnel Ventilation shafts of the Velser tunnel, the Netherlands. In subterranean civil engineering, ventilation shafts, also known as airshafts or vent shafts, are vertical passages used in mines and tunnels to move fresh air underground, and to remove stale air.

  5. Termite barrier - Wikipedia

    en.wikipedia.org/wiki/Termite_barrier

    A Formosan termite and waterproofing barrier installed on a foundation in Greenville, SC. Applications for termite membranes include on concrete foundation walls, ICF insulated concrete forms, under-slab waterproofing, under-sill plates, flooring underlayments, and as wall, window, and door flashings, among others. Most termite membranes must ...

  6. French drain - Wikipedia

    en.wikipedia.org/wiki/French_drain

    French drains are often installed around a home foundation in two ways: Buried around the external side of the foundation wall; Installed underneath the basement floor on the inside perimeter of the basement [6] In most homes, an external French drain or drain tile is installed around the foundation walls before the soil is backfilled.

  7. Trickle vent - Wikipedia

    en.wikipedia.org/wiki/Trickle_vent

    A trickle vent is a very small [quantify] opening in a window or other building envelope component to allow small amounts of ventilation in spaces intended to be naturally ventilated when major elements of the design—windows, doors, etc.—are otherwise closed.

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