Red Seal Glazier Practice Exam

Question: 1 / 400

Which of the following primarily contributes to preventing moisture infiltration in glazing?

Reflective coatings

Capillary breaks

The primary contribution to preventing moisture infiltration in glazing is through the use of capillary breaks. Capillary breaks are designed to interrupt the path that moisture could take as it moves through the glazing system. This feature works by creating a gap that breaks the capillary action, which is the ability of water to move through narrow spaces, including those found in construction materials. By disrupting this action, capillary breaks minimize the likelihood of moisture entering the system, thus protecting the integrity of the glazing and preventing water-related issues such as mold and degradation.

While other components like reflective coatings, glazing beads, and insulating spacers play important roles in glazing systems — for instance, reflective coatings help manage solar heat gain and energy efficiency, glazing beads secure the glass in place, and insulating spacers enhance thermal performance — they do not primarily focus on moisture prevention in the same way that capillary breaks do.

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Glazing beads

Insulating spacers

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