Michigan Gutters (O) Maintenance & Alteration Contractor License Exam

What grading specification around a home's foundation helps downspout water run away rather than toward the structure?

Flat grade for even distribution A positive slope of at least 6 inches drop over 10 feet away from the foundation A negative slope directing water under the foundation A 2% slope toward the home

Correct Answer:

A positive slope of at least 6 inches drop over 10 feet away from the foundation

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