Henry 990-31 Protection Board 3′ x 4′

SKU: B4BK99031458

The Henry 990-31 Protection Board is a continuously extruded flexible twin wall board made of polypropylene copolymer. 990-31 Protection Board provides protection for all types of waterproofing membranes.  The Henry 990-31 Protection Board is used as protection of waterproofing membranes against possible damage during backfilling on a wide variety of applications such as foundation walls, roof decks, terraces, planters, promenades, etc. Its lightweight feature makes 990-31 ideal to use on vertical applications.


  • Easy to handle
  • Lightweight provides maximum labour savings
  • No special tools required
  • Can be cut easily or folded
  • Compatible with either hot or cold-applied waterproofing membranes

Additional information


450 Sheets/Skid


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