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2024 International Residential Code
Chapter 11

IRC 2024

2024 International Residential Code

Chapter 11Re Energy Efficiency

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Question 1 1.

What is the primary intent of Chapter 11 regarding energy efficiency in residential buildings?

To abridge safety, health, or environmental requirements in other applicable codes.
To provide market-driven, enforceable requirements for maximum energy efficiency that is safe, technologically feasible, and life cycle cost-effective.
To solely promote prescriptive-based compliance pathways for builders.
To ensure all residential buildings achieve zero energy by 2030, without any interim glidepaths.

Question 2 2.

According to Section N1101.4, for buildings approved by an above-code energy-efficiency program in Climate Zones 3 through 8, what is the maximum allowable multiplier for the total building thermal envelope thermal conductance (TC) when using prescriptive U-factors from Table N1102.1.2?

1.00
1.08
1.15
1.20

Question 3 3.

Which of the following details is NOT required to be indicated on construction documents for a solar-ready system?

Dedicated roof area for the solar-ready zone.
Roof dead load and roof live load.
The specific type of solar panel technology (e.g., concentrated solar power).
Routing of conduit or prewiring from the solar-ready zone to an electrical service panel.

Question 4 4.

Which definition correctly describes 'Continuous Insulation (ci)'?

Insulating material located between framing members.
Insulating material that is continuous across all structural members without thermal bridges other than fasteners and service openings.
Insulation applied to the exterior of basement walls, crawl space walls and the perimeter of slab-on-grade floors.
A material with a surface emittance of 0.1 or less in an assembly.

Question 5 5.

What is the definition of a 'Balanced Ventilation System'?

A ventilation system that only supplies outdoor air to a space.
A ventilation system that only exhausts air from a space.
A ventilation system that simultaneously supplies outdoor air to and exhausts air from a space, where the mechanical supply airflow rate and the mechanical exhaust airflow rate are each within 10 percent of the average of the two airflow rates.
A ventilation system where supply and exhaust airflow rates can vary by more than 20%.

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