NewSeal 408 DeckDrain

Efficient Drainage Solution: Double cuspated membrane with a polypropylene geotextile filter layer and water impermeable HDPE core provides efficient drainage for decks, balconies, and flat roofs.
Dual-Layer Design: Unique double cuspated design offers two layers of drainage, ensuring effective water management in various applications.
Versatile Applications: Ideal for use above waterproofing membranes in areas with block paving, flooring slabs, soil-filled planters, or intensive green roofs. Also suitable for vertical drainage in professionally designed basement waterproofing systems.

Double cuspated, deck and flat roof drainage membrane, that incorporates a polypropylene geotextile filter layer, bonded to a water impermeable HDPE (High Density Polyethylene) core. The double cuspated design provides two layers of drainage.

Key Benefits

Typical Applications

Suitable Substrate

Technical Data

Key Benefits

Provides a clear and clean drainage path for surface water to roof drainage outlets.
Double cuspated (drainage studs to the upper and lower surfaces) design provides a clear and clean drainage path above the deck waterproofing membrane, to ensure that water cannot be trapped above the deck membrane, as can be the case with single cuspated deck drainage membranes.
Suspended soil particles (fines) are filtered out by the geotextile layer.
Quick and easy to install.

Typical Applications

As the drainage layer above a deck, balcony or flat roof waterproofing membrane, particularly where:

Block paving or flooring slabs are bedded on sand as the surface finish.
Soil filled planters are included to the deck or flat roof.
An Intensive Green Roof is planted to the deck or flat roof.

Also suitable for use as a vertical drainage layer when used as part of a professionally designed and installed externally applied basement waterproofing system.

Suitable Substrate

Directly above primary deck or roof waterproofing membrane.

Technical Data

Installed Performance	Result
Compressive strength – Temporary loading	280 kPa
Compressive strength – Permanent loading	10 kPa
Water vapour diffusion resistance – Sd value	>604m
Water vapour diffusion resistance – µ value	>1208000µ
Water vapour diffusion resistance	>3020 MNs/g
Tensile strength (Machine direction)	13.6k N/m2
Tensile strength (Cross direction)	14.7k N/m2
Chemical resistance – Excellent	100%
Oxidation resistance – Excellent	100%

NewSeal 408 DeckDrain