Humber/Ontario Real Estate Course 2 Exam Practice

What does an R-value signify in relation to a product?

1. It measures insulation efficiency but no minimum requirements exist for new homes.

2. It represents the thermal resistance characteristic of a product.

3. It's specifically used for glass fibre insulation only.

4. It measures thermal resistance; a lower number indicates higher resistance.

5. It measures the soundproofing ability of materials.

6. It defines the fire resistance of certain building materials.

The correct answer is: It represents the thermal resistance characteristic of a product.

The correct answer is B. In the context of real estate and building construction, the R-value represents the thermal resistance characteristic of a product. It is used to measure how effectively a material can resist the flow of heat through it. A higher R-value indicates better insulation properties, which means the material can better control the transfer of heat between the interior and exterior of a building. As for why the other options are incorrect: A. While the R-value does measure insulation efficiency, there are minimum requirements for new homes in terms of insulation standards that must be met. C. The R-value is not specific to glass fibre insulation; it is a general measure of thermal resistance for all insulation materials. D. In the case of the R-value, a higher number actually indicates higher resistance, not a lower number. E. The R-value does not measure the soundproofing ability of materials; it focuses on thermal resistance. F. The R-value does not define the fire resistance of building materials; that is typically determined by separate fire testing standards and classifications.