Backer rod
A flexible foam rod used to fill joints and gaps before applying sealant.
A backer rod is a flexible foam strip used as a backing in joints before applying sealant, ensuring proper depth and adhesion. It is crucial for optimizing joint performance, enhancing durability, and supporting weatherproofing. By providing a reliable and effective backing solution, backer rods support efficient joint sealing, reduce material use, and contribute to successful project delivery by ensuring that joints are well-sealed, aligned with design specifications, and capable of meeting performance criteria and environmental conditions.
Used in a sentence
A backer rod was inserted into the joint before caulking was applied.
Synonyms/variation
Joint Filler
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