NBS Source
I'm a manufacturer

Delta AT 800 - Gas Resistant Cavity Membrane

Verified by manufacturer 2 months ago

Delta Membrane Systems Ltd

Gas resistant Type C cavity drainage membrane (unique)

Jump to:
+44 (0)1992 523523 Website

Application

Suitable for:

  • New and existing buildings.
  • High volumes of water penetration.
  • Ground gas protection.

Description

Delta AT 800 - Gas resistant cavity membrane is an innovative drainage membrane that offers maximum protection in just one application. Conforms to BS 8102:2022 and BS 8485:2015+A1:2019, Table 7 achieving waterproofing and ground gas protection simultaneously. This Virgin Polymer profiled membrane with superior drainage capacity and compressive strength has been used in the construction of the Gothard tunnel and several stations of the Moscow Metro.


Features and benefits:

  • Rapid cost effective installation.
  • Compatible with all types of construction.
  • Ideal for complex substructures.
  • Guaranteed performance.
  • A reversible system, which will minimize damage to historical or heritage structures.
  • An effective barrier to the transmission of salts, liquid water and water vapour.
  • An effective barrier to gas – including Methane, CO2 and Radon.
  • Durable for 100 years in natural soil with 4 ≤ pH ≤ 9 and soil temperature ≤ 25 °C.
  • BS 8102:2022, code of practice for protection of below ground structures against water from the ground.
  • Table 7, BS 8485:2015 +A1:2019, code of practice for the design of protective measures for methane and carbon dioxide ground gases for new buildings.


Characteristics:

  • Dimpled sheet - virgin polymer with a flat edge.
  • Dimpled height (EN 964) approx. 9 mm.
  • Air gap between dimples approx. 7. 9 l/m².
  • Contact area dimples/surface approx. 700 cm²/m².
  • Diagonal dimples per m² approx. 2.500 Pcs.
  • Packaged in 6 rolls on pallets, size: 20 x 2 m.
  • Straightness (EN 1848-2) passed <75 l/m².
  • Certification specification sheet alp transit passed.


Properties:

  • Pressure resistance: (EN ISO 25619-2), approx. 650 kPA.
  • Resistance against mechanical perforation (EN 918) Diameter of hole: 13.4 mm.
  • Service temperature range: 30 °C up to + 80 °C.
  • Resistance to water penetration (EN 1928) waterproof.
  • Resistance o f waterproofness against artificial aging at elevated temperatures (EN 1296) passed.
  • Durability under alkaline environment (EN 13984) passed.
  • Methane permeability (EN ISO 15105-1), <31 (less than) ml/m2/day/atm.

General information

Color

Brown

Material

Polyethylene

Guidance for specification option:

(HDPE)

Length

20000 mm

Width

2000 mm

Height

8 mm

Warranty description

30 year

Uniclass

Pr_25_57_21_35 Gas-resistant damp-proof coursesPrimary

CAWS

J40/35 Loose-laid plastics or rubber gas-retardant membranes

J40/140 Loose-laid plastics or rubber sheet gas-retardant membranes

Specification data - Gas-resistant damp-proof courses

Material

Virgin polymer profiled membrane.

Compatibility

Drainage protection suitable for Type C waterproofing (Grade 3 environment).

Drainage capacity

-

Manufacturer guidance

Drainage Capacity in the plane (EN ISO 12958), consult manufacturers specification.

Sustainability data

Contains Red List materials

No

Country of product manufacture

Germany

Recyclability

Yes

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

Similar products from Delta Membrane Systems Ltd

Delta High Performance DPC (damp proof course/Radon barrier)

Delta High Performance DPC (damp proof course/Radon barrier)

Delta LM 800 - liquid gas membrane

Delta LM 800 - liquid gas membrane