What is a potential consequence of applying glaze coat too thickly?

Applying a glaze coat too thickly can lead to the formation of alligatoring or crazing in large plates. This is a common issue in roof surfacing when the thickness of the glaze disrupts the intended curing and bonding processes. A glaze coat that is applied excessively can trap solvents or moisture within, making it difficult for the surface to properly cure. As a result, the coating can shrink unevenly during drying, leading to cracks that resemble the skin of an alligator. This structural problem not only affects the aesthetic quality of the roofing but can also compromise its protective capabilities, leading to further damage over time.

Understanding the optimal thickness for glaze coats is crucial for maintaining the integrity and performance of built-up roofing systems. Proper application ensures that the glaze cures effectively, providing the necessary waterproofing and durability.