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Triangular Shaped
Fits into the log joint to create a flat surface for chinking.
Bond Breaker
Chinking releases from closed-cell surface allowing for its natural elasticity.
Rounded Corners
Increases chinking "footprint" area for maximum adhesion.
Closed-Cell
Resists moisture migration.
Flame Retardant
Withdraws from flame rather than supporting combustion.
Energy Efficient
TRI-ROD has an R 4 per inch rating giving it excellent thermal efficiency.
No Outgassing
Does not outgas or cause blistering.
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Non-Toxic
Is odorless and safe for exterior and interior use. Has excellent flame and smoke ratings per ASTM-E-84.
Ease of Application
Is easily installed between logs after spraying back side with spray adhesive. It is not necessary to hold TRI-ROD in place with nails, staples, etc.
Flexible
Provides firm but flexible chinking surface; will not distort or result in bulging, uneven chinking surface.
Testing
Meets or exceeds ASTM standards for polyethylene foam insulation. See Properties & Performance Comparison of Backing Materials.
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