Answer the following statements true (T) or false (F)
1. Insulating materials that contain HCFC gas within their cells have a higher R-value than those that contain air within their cells.
2. Insulating materials that contain HCFC gas within their cells have a higher R-value than those that contain air within their cells.
3. The use of aluminum foil in attics is more useful in warm climates than in cold climates.
4. A building assembly with a higher U-value is thermally more insulating than one with a lower U-value.
1. True
2. True
3. True
4. False
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