HERS Building Science Fundamentals

Question 1

What is the primary method by which heat moves through solid materials?

Accepted Answer

Conduction

Answer

Radiation

Answer

Convection

Answer

Evaporation

Question 2

Which component of a home helps reduce heat loss through the roof?

Accepted Answer

Attic insulation

Answer

Drywall

Answer

Radiant barrier

Answer

Vapor retarder

Question 3

What is the main purpose of a vapor barrier in building construction?

Accepted Answer

To stop moisture migration

Answer

To block air leaks

Answer

To reflect radiant heat

Answer

To provide structural support

Question 4

Which direction does heat naturally flow?

Accepted Answer

From warmer to cooler areas

Answer

From cooler to warmer areas

Answer

In a circular pattern

Answer

Away from insulation

Question 5

Why is air sealing important in home energy efficiency?

Accepted Answer

It reduces energy loss by stopping air leaks.

Answer

It increases solar gain.

Answer

It prevents thermal bridging.

Answer

It improves structural integrity.

Question 6

Which of the following is an example of radiant heat transfer?

Accepted Answer

Sunlight warming a room through a window

Answer

Heat moving through a window pane

Answer

Warm air rising from a heater

Answer

Heat spreading through metal studs