Goal: Understand the relationship between dry air & water and explain its impact on indoor air quality.
Lesson 1: Air, Water, Energy
Objective – Describe what is in air, how the air molecules relate, and how water vapor fits in to the mix.
Lesson 2: Moist Air Properties
Objective – Describe various properties related to the mixture of dry air and water vapor molecules. The properties we will cover include dry bulb temperature, web bulb temperature, relative humidity, humidity ratio, and dew point.
Goal: Understand how water vapor can enter indoors via diffusion & infiltration and cause indoor air quality problems.
Lesson 1: Vapor Diffusion
Objective – Explain how vapor pressure differentials can drive moisture through materials via diffusion. Also, be able to describe how materials can be measured for permeability and know where they should be placed in different climates.
Lesson 2: Air Infiltration
Objective – Describe how leakage paths and pressure differences cause air infiltration, which can lead to indoor air quality problems.