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2. Ventilation (architecture) - Wikipedia

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

   Ventilation should be considered for its relationship to "venting" for appliances and combustion equipment such as water heaters, furnaces, boilers, and wood stoves. Most importantly, building ventilation design must be careful to avoid the backdraft of combustion products from "naturally vented" appliances into the occupied space.

3. Passive ventilation - Wikipedia

   en.wikipedia.org/wiki/Passive_ventilation

   A roof turbine ventilator, colloquially known as a 'Whirly Bird' is an application of wind driven ventilation. Passive ventilation is the process of supplying air to and removing air from an indoor space without using mechanical systems.

4. Heating, ventilation, and air conditioning - Wikipedia

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

   Rooftop HVAC unit with view of fresh-air intake vent Ventilation duct with outlet diffuser vent. These are installed throughout a building to move air in or out of rooms. In the middle is a damper to open and close the vent to allow more or less air to enter the space. The control circuit in a household HVAC installation.

5. Reports of rats are on the rise in Tri-Cities. Here’s what ...

   www.aol.com/reports-rats-rise-tri-cities...

   Roof rats, which have tails longer than their heads and bodies, tend to be climbers and may be seen on fence lines and trees, Miller said. Reports of rats in Tri-Cities neighborhood groups seem to ...

6. Florida's condo crisis: In 3 Palm Beach County communities ...

   www.aol.com/floridas-condo-crisis-3-palm...

   Lake Clarke Gardens: Significant roof problems in 58-year-old building. Inspectors found evidence of standing water on the roof of a building at Huntingdon Lakes, west of Delray Beach. If not ...

7. Drain-waste-vent system - Wikipedia

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

   Air admittance valves (AAVs, or commonly referred to in the UK as Durgo valves and in the US as Studor vents and Sure-Vent®) are negative-pressure-activated, one-way mechanical valves, used in a plumbing or drainage venting system to eliminate the need for conventional pipe venting and roof penetrations.