TRI-ROD Backer Rod is a highly insulating, closed-cell polyethylene foam backer rod specifically designed and manufactured for use in the round log home industry. The triangular shape of TRI-ROD enables it to fit snugly between the logs and provides a flat surface for the optimum chink joint design.
TRI-Rod Backer Rod has been discontinued. The Grip Strip Backer Rod is a comparable alternative.
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