HAAG Certified Reviewer Practice Exam 2025 – Complete Study Guide

Improperly sealed roof penetrations can lead to an increased risk of roof leaks. When penetrations, such as vents, pipes, or other structures that break the plane of the roof, are not adequately sealed, they create opportunities for water infiltration. Water can seep through these gaps and eventually cause significant damage to the interior of a building, leading to mold growth, wood rot, and damage to insulation and ceilings. In essence, sealing these penetrations correctly is crucial for maintaining the roof's integrity and ensuring that it performs its function of protecting the building from the elements.

The other options suggest unrealistic or positive outcomes which would not typically result from improperly sealed penetrations. For instance, energy efficiency would likely decrease due to the potential for air leaks, and the structural integrity and functional lifespan of the roof would be compromised rather than improved.