Verified by manufacturer 3 months ago
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.
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.
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:
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 |
Height | Bespoke |
Uniclass | |
CAWS | J40/295 Geocomposite studded cavity drainage/ venting membrane Q37/130 Extensive green roof Q37/350 Drainage layer |
Product range |
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 guidanceThe 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. |
Contains Red List materials | No |
Country of material origin | Germany |
Country of product manufacture | Germany |
Material | High density polyethylene (HDPE) |
Recyclability | 100 |
NBS BIM Object Standard
This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.
Find out more about the NBS BIM Object Standard.
Platform | Compatible | Version |
---|---|---|
IFC2X3 | 4 | |
Revit 2016 | 5 |
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