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?
“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