A storefront glazing detail requires setting blocks, but the installed lite rests directly on the metal sill. The installer says sealant replaces the blocks. What is the quality concern?
Correct Answer
A) Blocks support the glass and keep its edge off the metal
Use the setting blocks required by the glazing system to transfer glass weight and maintain the designed clearance. Select compatible blocks with the specified dimensions and locations; sealant is not permission to omit them. Direct metal contact can damage glass edges. Follow the approved glazing details. Source: https://www.vitroglazings.com/media/fzzavcjr/tech_doc_140.pdf
Why This Is the Correct Answer
Use the setting blocks required by the glazing system to transfer glass weight and maintain the designed clearance. Select compatible blocks with the specified dimensions and locations; sealant is not permission to omit them. Direct metal contact can damage glass edges. Follow the approved glazing details. Source: https://www.vitroglazings.com/media/fzzavcjr/tech_doc_140.pdf
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