Henry HeDB200 Drainage Board Roll, 4 ft x 50 ft

This is a Henry HeDB200 drainage board supplied as a 4 ft by 50 ft roll, giving 200 square feet of drainage composite per roll. It creates a drainage gap and moisture path in below-grade and waterproofing applications. Pair it over compatible waterproofing membranes for a complete drainage system.

Key Features:

• Large roll coverage: Each 4 ft x 50 ft roll provides approximately 200 square feet of drainage board.
• Drainage function: Collects and channels water away from the protected surface in waterproofing assemblies.
• Roll format: Comes as a roll for fast unrolling and coverage of large vertical or horizontal areas.
• Water management: Part of a water and moisture drainage system for building envelopes.
• Single configuration: Offered in one 4 ft x 50 ft roll configuration on this page.

Specifications Table:

Coverage & How Much You Need:

One 4 ft x 50 ft roll covers about 200 square feet. Multiply wall or foundation height times run length, subtract openings, and divide by 200 sq ft per roll, allowing extra for laps and overlaps.

Fit and Compatibility:

Install over compatible waterproofing membranes as part of a Henry Company (Carlisle) below-grade waterproofing system. Membranes, terminations and attachment accessories are sold separately.

Frequently Asked Questions (FAQ):

Q: What size is the roll?
A: The HeDB200 drainage board roll measures 4 feet wide by 50 feet long, approximately 200 square feet.

Q: How do I calculate rolls needed?
A: Compute the wall or slab area to be protected, add allowance for laps, then divide by about 200 square feet per roll.

Q: Does it replace waterproofing?
A: No. A drainage board manages and channels water but must be paired with a waterproofing membrane as specified by the manufacturer.

Q: How is it attached?
A: Attachment methods depend on the substrate; follow Henry’s installation instructions and use compatible fasteners or adhesive, sold separately.

Q: Can it be used above grade?
A: The listing places it in water and moisture drainage products; confirm the intended above- or below-grade application with the manufacturer’s data sheet.

Expert Verdict Reviewed by the SuperArbor Pro Desk

Drainage boards are most valuable on buried walls where hydrostatic pressure builds, so plan the roll orientation so the drainage path terminates at a footing drain or weep system. Overlap adjacent rolls per the manufacturer’s direction to keep a continuous drainage plane. In most below-grade jobs this roll pairs directly over a self-adhered membrane such as Blueskin WP 200.

Excavation and below-grade installation carry trench and shoring hazards; follow OSHA excavation requirements and site safety plans.

Add the Henry HeDB200 4 ft x 50 ft drainage board roll to your waterproofing package today.