A Double- Layer Roof Underlayment Is Required in an Asphalt

question 39

Multiple Choice

A double- layer roof underlayment is required in an asphalt shingle roof if the roof slope is

• A)between 3:12 and 4:12.
• B)between 3:12 and 9:12.
• C)between 3:12 and 6:12.
• D)between 3:12 and 5:12.
• E)none of the above.

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Definitions:

APC

In economics, stands for Average Propensity to Consume, which is the ratio of total consumption to total disposable income.

APC

Average Propensity to Consume, which is the fraction of income that households spend on consumption as opposed to saving.

APS

Stands for Average Propensity to Save, which measures the proportion of income that households save rather than spend on goods and services.

Autonomous Consumption

The level of consumption that occurs when income is zero, representing the consuming behavior independent of current income.