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Drainage and Water-Retention Green Roof Membrane Newton 420 Reservoir - Extensive Green Roof Drainage Membrane

Verified by manufacturer 2 months ago

Newton Waterproofing Systems

Unique drainage and water-retention membrane for use where a water reservoir is required for extensive green roofs of sedum, herbaceous plants, mosses or grass above decks and roofs.

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Application

Suitable for use as a water holding and drainage layer above a deck, flat roof or pitched roof where shallow planting is used to create an extensive green roof.

Description

Unlike other products of this type, Newton 420 Reservoir

has a bonded geotextile that prevents intrusion of the soil into the water-holding cups during back-fill and compression. This results in a permanently larger volume reservoir than any other 20 mm deep green roof membrane.


When the water holding cups are full, the large drainage holes within the high-density polyethylene (HDPE) core allow water to easily pass through to the drainage layer below to prevent saturation and water logging of the green roof above.


Newton 420 Reservoir should continue over construction and movement joints and acts as a decoupling membrane preventing movement from the substrate transferring through to the surface finish. Consult manufacturer's literature for relevant surface preparation.


Features and benefits:

  • Exclusive bonded geotextile does not sag into the water holding cups as is the case with loose laid geotextiles.
  • Large drainage holes allow a much higher drainage flow through the membrane than comparative products, ensuring that when the water holding cups are full, the water drains quickly so as not to waterlog the soil.
  • Suspended soil particles (fines) are filtered out by the geotextile layer.
  • Large drainage layer created by the 20 mm HDPE core.
  • Tough and durable.
  • Quick and easy to install.

General information

Color

Black

Guidance for specification option:

Studded core: Black

Finish

Smooth

Material

High density polyethylene (HDPE)

Shape

Other

Guidance for specification option:

Wrapped label rolls which weigh 70 kg

Length

50000 mm

Width

920 mm

Uniclass

Pr_25_57_51_36 High-density polyethylene (PE-HD) studded sheetsPrimary

CAWS

J40/295 Geocomposite studded cavity drainage/ venting membrane

Q37/130 Extensive green roof

Q37/350 Drainage layer

Product range

External Waterproofing and Drainage Membranes

Specification data - High-density polyethylene (PE-HD) studded sheets

Standard

To EN ISO 12958, BS EN 1931, EN ISO 12236, EN ISO 10319 and to EN14030/ EN ISO 13438.

Filter layer

Polypropylene.

Stud height

19 mm.

Guidance for specification option:

Membrane height: 20 mm.

Sheet thickness

1.2 mm.

Weight (minimum)

70 kg.

Colour

Black.

Performance characteristics

-

Flow rate

0.07 L/m/s (at 20 kPa), 0.04 L/m/s (at 100 kPa), 0.02 L/m/s (at 200 kPa).

Recycled content

None.

Studded layer

High density polyethylene (HDPE).

Compressive strength – Temporary loading

>240 kPa.

Compressive strength – Permanent loading

>120 kPa.

Water vapour diffusion resistance – Sd value

>604 m.

Water vapour diffusion resistance – µ value

>1 208 000 µ.

Water vapour diffusion resistance

>3020 MNs/g.

CBR puncture resistance

2800.00 N.

Tensile strength (Machine direction)

19 kN/m².

Tensile strength (Cross direction)

10 kN/m².

Chemical resistance

Excellent.

Oxidation resistance

Excellent.

Purpose

Water retention.

Manufacturer guidance

The large drainage holes within the HDPE core allow water to easily pass through to the drainage layer below to prevent saturation and waterlogging of the green roof above.

Water vapour resistance (minimum)

3020 MN·s/g.

Width (minimum)

920 mm.

Roll length (minimum)

50 m.

Sustainability data

Contains Red List materials

No

Country of material origin

Germany

Country of product manufacture

Germany

Recyclability

100

BIM objects

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Platform Compatible Version
IFC

IFC2X3

4

Revit

Revit 2016

5

Literature

Newton NewSeal 420 DeckDrain

Newton NewSeal 420 DeckDrain

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