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Duoflex - Double Pour Hot Melt Inverted Roof System (Concrete Deck)

Verified by manufacturer 5 months ago

Soprema UK

Hot melt structural waterproofing system for inverted roofs on timber and concrete decks. Please see other Duoflex system listings for alternate deck & ballast options.

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Application

For use within the Duoflex Roofing System. Specifically for hot-melt applications; must be heated to 155–180°C before application. Suitable for use in a ballasted system with a SBS modified bitumen protection membrane, XPS insulation, water flow reduction layer and suitable ballast.

Description

Soprema’s hot applied, Duoflex Hot Melt structural waterproofing system is characterised by reduced lifecycle costs and self-healing properties for podium deck waterproofing and on inverted flat roofs. Duoflex structural waterproofing can be installed on zero falls in accordance with BS 6229 2018, and a root-resistant cap sheet can be incorporated into the system for subsequent green roof installations.


BBA-certified, this structural waterproofing system is made to last the lifetime of the structure to which it is applied. In addition to the DUOFLEX elastomeric bitumen blocks, Soprema’s structural waterproofing systems range consists of SBS bituminous primers, SBS modified bitumen membranes, XPS Insulation and a water flow reduction layer. An inverted Duoflex system must be ballasted with either paving slabs, stone ballast or a green roof system to prevent wind uplift and flotation.


Features and benefits:

  • Optimum adhesion.
  • Guaranteed longevity.
  • Easy to install.
  • Good technical performance.
  • Properties in relation to fire: when used in a protected or inverted roof specification, including an inorganic covering listed in the Annex of Commission Decision 2000/553/EC, the system can be considered to be unrestricted under the national Requirements.

General information

Color

Black

Finish

-

Manufacturer guidance

Paving slabs Stone ballast (see separate NBS listing). Extensive Green Roof (see separate NBS listing). Stone Ballast Blue Roof.

Material

Bitumen

Warranty description

-

Manufacturer guidance

Consult manufacturer.

Uniclass

Ss_30_40_30_42 Liquid-applied inverted roof covering systemsPrimary

CAWS

J42/12 Inverted roof covering

J42/120 Inverted roof covering

J41/120 Built-up reinforced bitumen membrane inverted roof covering

J41/125 Single-layer reinforced bitumen membrane inverted roof covering

J41/14 Reinforced bitumen membrane inverted roof covering

Product range

Liquid applied waterproofing

Specification data - Liquid-applied inverted roof covering systems

Preparation

-

Horizontal work

Elastocol 500.

Guidance for specification option:

High bond, high penetration primer blended with elastomeric, polymer modified SBS compound.

Spray or roller applied.

Skirtings and vertical work

Elastocol 500.

Guidance for specification option:

High bond, high penetration primer blended with elastomeric, polymer modified SBS compound.

Spray or roller applied.

Liquid-applied waterproofing

-

Type

Duoflex.

Guidance for specification option:

Hot melt, rubberized monolithic bitumen polymer, modified with SBS thermoplastic resin.

Reinforcement

TR200 Reinforcement Fleece.

Guidance for specification option:

Spun bound polyester reinforcement carrier, which is embedded into the first coat of Duoflex.

Weight

20 kg blocks.

Third-party certification

BBA Certificate 10/4745.

Modifier

Styrene butadiene styrene (SBS).