HAAG Certified Reviewer Practice Exam 2025 – Complete Study Guide

Solid-core doors are commonly used in residential units for energy efficiency because they provide better insulation compared to hollow-core doors. The increased density of solid-core doors helps to minimize heat transfer, making them effective at maintaining interior temperatures. This characteristic can lead to reduced heating and cooling costs over time, ultimately contributing to energy savings.

In addition to insulation, solid-core doors tend to be more durable and offer better soundproofing than their hollow-core counterparts. This combination of energy efficiency and sound control makes solid-core doors a preferred choice for many homeowners.

Hollow-core doors, while lightweight and cost-effective, do not offer the same level of insulation and energy efficiency. Pivot and accordion doors have specific uses that may not be as focused on energy efficiency and thermal performance, making them less suitable for standard residential applications aimed at energy conservation.