26 Aug '16, 5pm

Check out NW Eco-Bldg-Guild AAV article

Check out NW Eco-Bldg-Guild AAV article

Air Admittance Valves (AAV) are one-way air valves installed beneath a drain that allow needed make-up air to flow into the wastewater plumbing to prevent sewer gases escaping into the building. By using a combination of Studor/IPS AAVs and its "Maxi-Filtra" 2-way charcoal-filtered air vent in lieu of an exterior sewer clean out cap, we eliminated all wastewater plumbing vent pipes. The Maxi-Filtra is a two-way air valve located outside the house with an activated charcoal filter which allows positive pressure in the sanitary sewer system to escape to the atmosphere without odor. At the time we built our home in 1998 it exceeded building energy requirements. However, by 2009, we had awakened to the threat of global warming and knew we should futurefit (remodel for the future) our home to the Passive House Standard, a super-insulated design strategy imported from Germany. A...

Full article: http://www.ecobuilding.org/code-innovations/case-studies/...

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