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A field-glazed storefront lite is resting directly on the metal sill without setting blocks. The installer says sealant will hold it in place. What is the quality concern?

Correct Answer

A) The glass needs proper setting blocks to support weight, maintain edge clearance, and reduce breakage risk

Glass should bear on proper setting blocks so weight is supported, edge clearances are maintained, and point contact breakage is avoided. Other choices misunderstand glass support and drainage.

Answer Options
A
The glass needs proper setting blocks to support weight, maintain edge clearance, and reduce breakage risk
B
The glass will become fire-rated automatically, leaving field glazing setting blocks unverified
C
Use sealant alone to handle field glazing setting blocks
D
Metal-to-glass contact is required for drainage

Why This Is the Correct Answer

Glass should bear on proper setting blocks so weight is supported, edge clearances are maintained, and point contact breakage is avoided. Other choices misunderstand glass support and drainage.

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