Insulating materials that contain HCFC gas within their cells have a higher R- value than those that contain air within their cells.

Question

Quizplus · Accepted Answer

HCFC gas (hydrochlorofluorocarbon) has a higher thermal resistance than air, which means that insulation materials containing HCFC gas will have a higher R-value (a measure of thermal resistance) than materials containing air. This is because HCFC gas has a lower thermal conductivity than air, which means it is better at reducing heat transfer through the material. However, it's worth noting that HCFC gas is a type of ozone-depleting substance and is being phased out under international agreements, so many modern insulation materials use other gases or materials with similar or better R-values.

Insulating Materials That Contain HCFC Gas Within Their Cells Have