With the two-part Interlocking System, installing THERMAX™ Insulation/Finish boards on concrete or masonry walls or ceilings is a snap.

Sold in conjunction with insulation products

Reduce air leakage and moisture infiltration when installing THERMAX™ insulation/finish boards in concrete or masonry wall or ceiling applications with the easy-to-use Interlocking System. This two-part PVC closure features sections that easily snap into place for a secure fit.

Related Information

Joint Closure Systems for Enhanced Protection Against Air and Moisture (146KB PDF)

Interlocking System Sizes
Base
1" Section Accommodates foam thicknesses from 1" to 1.75"
2" Section Accommodates foam thicknesses from 2" to 3"
Top "T" Section Sizes to accommodate 1", 1.5", 2" and 2.5" foam thicknesses

10' lengths are sold in cartons of 20 (200 linear feet)

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