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Home > Backer Rods and Foam Tape > Backer Rods > Open Cell Backer Rod

Open Cell Backer Rod

Round Open Cell Backer Rods
Sold in bales of yellow rope.
Very flexible and easy to install.
Round shape facilitates the proper caulking or chinking joint design (with more sealant material near the log adhesion points).
Compresses easy, requiring few sizes to complete a particular job. Does not have a water resistant coating making it breathable.
Best used for interior walls because it absorbs water.
If used for exterior, please take steps to prevent moisture from coming in contact with it, before, during and after sealant installation.
Absolutely, do not use it to repair checks. This is because checks in logs are extremely difficult to seal properly; and moisture can seap in; then collect in the open cell rope.