Henry Drain Board products consist of multiple components designed to enhance the performance of Henry protected membrane roofing and waterproofing systems.
Henry DB consists of a polystyrene or PVC core combined with a polypropylene fabric. Polymeric films attached to the Henry DB provide additional protection for softer waterproofing systems.
- Integral part of a high performance Henry protected membrane roofing or waterproofing system
- Low installed cost compared to other drainage systems such as aggregates.
- Easy to handle and install -Strong and durable with very high compressive strength and tear resistance
- Chemically resistant
- High flow capacity
Ensure that the primary waterproofing system has been installed and inspected prior to covering with Henry DB. Flood tests may also need to be complete prior to the application of the Henry DB. When used as a protection board, ensure that work progresses from sheet to sheet to avoid damage to the waterproofing membrane.
Henry DB is used as a component of a Henry high performance protected membrane roofing assembly or waterproofing assembly in both horizontal and vertical applications. The Henry DB enhances the performance of the watertight layer by directing water quickly and safely to a drain and drain system. Used in protected membrane roofing applications, retaining walls, plaza deck waterproofing, parking structures, roof gardens and planters, foundation walls and other areas where a high performance system is desired.
Henry DB 200 Designed for vertical and horizontal installations at shallower depths where moderate compressive strength is adequate.
Henry DB 220 – Designed for vertical and horizontal installations at shallower depths where moderate compressive strength is adequate. Polymeric films attached to membrane (back) side provide additional protection for softer waterproofing systems.
Henry DB 200-S – Designed for vertical and horizontal installations requiring a high compressive strength and moderate flow capacity.
Henry DB 350 – Designed for horizontal applications requiring high compressive strength, moderate flow capacity, and the strength and filtration properties of a woven geotextile. Suitable for use under topping slab in split slab applications.
Henry DB 500 – Designed primarily for vertical installations requiring high compressive strength and where high flow capacity is needed. Use is suitable for selected horizontal applications.
Henry DB 520 Designed primarily for vertical installations requiring high compressive strength and where high flow capacity is needed. Use is suitable for selected horizontal applications. Polymeric film attached to membrane (back) side provides additional protection for softer waterproofing systems.
Henry DB 650 – Designed primarily for horizontal applications requiring high flow capacity, high compressive strength and the strength and filtration properties of a woven geotextile. Suitable for use under topping slab in split slab applications.
Henry DB 650n – Designed for horizontal applications requiring high flow capacity, high compressive strength and the strength and filtration properties of a non-woven geotextile
