What is the purpose of sealant at exterior panel joints?

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Multiple Choice

What is the purpose of sealant at exterior panel joints?

Explanation:
Exterior panel joints need a sealant to create a flexible, watertight barrier that keeps rain, wind, and moisture from entering the wall, while still allowing for movement as temperatures change. This weatherproofing protects the substrate, reduces energy loss, and helps prevent issues like condensation and damage from freeze–thaw cycles. The sealant is chosen for longevity, UV resistance, and good adhesion to the panel materials, and it doesn’t serve to change color, alter glue adhesion, or increase tile thickness.

Exterior panel joints need a sealant to create a flexible, watertight barrier that keeps rain, wind, and moisture from entering the wall, while still allowing for movement as temperatures change. This weatherproofing protects the substrate, reduces energy loss, and helps prevent issues like condensation and damage from freeze–thaw cycles. The sealant is chosen for longevity, UV resistance, and good adhesion to the panel materials, and it doesn’t serve to change color, alter glue adhesion, or increase tile thickness.

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