Thermal Protection

What is the primary reason for over half of the lawsuits involving architects?

• Design flaws

• Water leaks

• Construction delays

• Material defects

Is water vapor damaging by itself?

• Yes, it is damaging.

• No, it is not damaging by itself.

• Yes, but only at high temperatures.

• The material does not specify.

What can cause issues when related to water vapor?

• Condensation

• Evaporation

• Staying in vapor form

What is adsorption in the context of moisture control?

• Absorption of water by materials

• Film of water molecules held to the surface of materials by molecular forces of attraction

• The process of water vapor turning into liquid

• The increase in humidity levels

What can affect the adsorption of water vapor on materials?

• Temperature levels

• Humidity levels

• Pressure levels

• Wind speed

What type of materials are affected by the effect of water vapor?

• Hydrophobic materials

• Hygroscopic materials

• Non-porous materials

• Metallic materials

What is an example of a chemical change that leads to the deterioration of materials due to moisture?

• Cracking of paint

• Rusting of steel

• Swelling of wood

• Erosion of stone

Which of the following is a physical change that can occur in materials due to moisture?

• Mold growth

• Rusting of steel

• Masonry spalling

• Wood rot

What biological process can cause the deterioration of wood when exposed to moisture?

• Oxidation

• Wood decay

• Concrete cracking

• Metal corrosion

What is permeance a measure of?

• The ability to permit water vapor passage

• The ability to absorb water

• The resistance to electrical conductivity

• The measurement of thermal insulation