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Predicting IAQ – Ventilation Rates

-Sick Building Syndrome-Sufficient Ventilation-Relationship between Volume and Ventilation rate

Sources & Impacts of IAQ

  • •Most immediate indicator of IAQ problem•
  • Undetectable by machines•
  • Perceived strongly on initial encounter then fades•
  • Simply unpleasant or serious problem
  • •Easy to trace except for office environments•
  • “Architectural masking approach” - Fail•
  • Filtration and Increase outdoor air
  • Imperceptible at firstCause increasing distress over timeSources: paints, adhesive, sealant, furniture, carpeting, vinylIncrease outdoor air
  • Odor
  • Irritants
  • Toxic Particulate Substances
  • Biological Contaminants
  • Radon and Soil Gases
  • Multiple Chemical Sensitivity
  • “Asbestos” high level of toxicityFiltration and Ventilation insufficientRemoved by constricted controls or sealed and left in placeIncomplete Combustion Materials: smoking, woodstoves, fireplaces, gas ranges, kerosene space heatersIsolation, Filtration, Ventilation
  • Bacteria, Fungi, Viruses, Algae, Insect parts, Dust“Moisture” (Interior surfaces and HVAC Systems)Allergic reactions and Infectious/Non-infectious DiseasesRemedies: Maintenance and Exposure to Ultra Violet Rays
  • Radon
  • Other gases include methane and pesticidesProblem traced to exposed earthPenetrates through cracks and openings of plumbing“Sealing” and Under Slab Ventilation
  • Also known as “Environmental Illness”Unusual condition of certain peopleCause is unknown

IEQ in detail

  • Indoor Air Quality (IAQ)
  • Temperature
  • Relative Humidity
  • Noise
  • Vibration

Indoor Environment Quality

What is IEQ?

simply defined:

“IEQ is really about putting humans at the center of the design process.”

Your guide to a healthy structure

Introduction <3

IEQ = IAQ +ITQ + ILQ + ISQ + IOQ + IVQ

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