The STYROFOAM -A Solution for externally insulating basement Walls is PERIMATE DI-A. PERIMATE DI-A is designed to give maximum benefit when insulating structures below ground. It has:
- shiplapped edges to ensure continuity of insulation
- vertical channels cut in the face of the board to help drain water away
- a thin layer of filter fabric bonded to the surface to help prevent soil particles blocking the channels.

Specification Details for PERIMATE DI-A (Insulation Boards)

Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Dow Building Solutions is consulted before specifying.

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