Backer Rod serves as a water resistant bond breaker, ensuring that your caulking establishes a two-point connection with the top and bottom of the joint. This is crucial for allowing the caulking to stretch properly. Without Backer Rod, your logs can tear as they shift.
Backer Rod serves as a water resistant bond breaker, ensuring that your caulking establishes a two-point connection with the top and bottom of the joint. This is crucial for allowing the caulking to stretch properly. Without Backer Rod, your logs can tear as they shift.
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