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Proteus Pro-Felt Plain Dispersion Underlay - Torch-on Reinforced Bitumen Membrane

Verified by manufacturer 2 months ago

Proteus Waterproofing Third party certifications:
  • ISO 9001 Quality Management

    Certificate type

Torch-on reinforced spunbond polyester elastomeric bitumen membrane for use as an underlay or VCL to high performance Proteus capsheets and as part of Proteus roofing systems.

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Application

To be used as an under-layer in conjunction with Proteus Pro-Felt® built-up roof systems and Proteus Pro-Felt® capsheets. Capsheets are available with a sanded or mineral finish, and suitable for both refurbishment and new build projects.

Description

Torch-on reinforced spunbond polyester elastomeric bitumen membrane with a polypropylene finish to be used as an underlay to high performance Proteus capsheets or as part of the Proteus built-up roof system range when installing directly to asphalt, concrete or felt.


When overlaying, there may be trapped moisture in the existing roof construction. Proteus Pro-Felt® Plain Dispersion Underlay has been engineered to bond to 50% of the surface, with bituminous stripes allowing moisture gases to dissipate under the layer via channels and avoid blistering from gases which expand as they warm up.


Features and benefits:

  • Manufactured in Europe.
  • Designed to provide high performance at extreme temperatures at high altitudes.
  • Retains its high elastomeric ability and performance and ensures the roof is protected by a durable and lasting waterproofing membrane.
  • 4 kg/m² with high tensile strength.
  • SBS (styrene-butadiene-styrene) modified bitumen.
  • Thermofusible film.
  • Polypropylene finish.
  • The range includes flame-free, self-adhesive layers.
  • Bespoke specifications available; consult manufacturer for details.


To be installed by roof torch flame-applied to the underside of the membrane. Ensure the bituminous stripes on the underside are heated to a sufficient level and are soundly adhered to the substrate. A partial bond of the membrane is to be achieved. All lap joints must be completely sealed, with a continuous 5 mm bitumen bead extruding from all laps. Side laps to be a minimum of 80 mm. End laps a minimum of 100 mm.

General information

Color

Grey

Finish

-

Manufacturer guidance

Sanded.

Material

Bitumen

Felt

Length

10000 mm

Width

1000 mm

Uniclass

Pr_25_57_08_75 Reinforced bitumen roofing sheetsPrimary

CAWS

J41/14 Reinforced bitumen membrane inverted roof covering

J41/12 Reinforced bitumen membrane cold deck roof covering

J41/130 Built-up reinforced bitumen membrane cold deck roof covering

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

J41/110 Built-up reinforced bitumen membrane warm deck roof covering

J41/400 Built-up reinforced bitumen waterproof covering

J41/10 Reinforced bitumen membrane warm deck roof covering

Specification data - Reinforced bitumen roofing sheets

Standard

To BS EN 13707.

Performance characteristics

Manufacturer's standard.

Manufacturer guidance

See below for other properties, or see manufacturer's literature.

Material

-

Carrier material

Reinforced spunbond polyester.

Bitumen modification

Elastomeric.

Thickness (minimum)

Manufacturer's standard.

Weight (minimum)

4 kg/m².

Surface finish

-

Top

Smooth (polypropylene).

Underside

Thermofusible film.

Colour

Manufacturer's standard.

Length

To EN 1848-1, 10 m.

Width

To EN 1848-1, 1.0 m.

Water tightness (to EN 1928)

To EN 1928-B at 60 kPa, Pass.

Reaction to fire

To EN 13501-1, Class F.

TensileStrength

To EN 12311-1, 750 / 500 N/50mm.

Elongation

To EN 12311-1, 40%/ 40% .

Guidance for specification option:

Lateral/ transverse.

Tolerance: MDV -15.

Resistance to tearing

To EN 12310-1, 150 / 150 N.

Dimensional stability

To EN 1107-1, -0.3%.

Joint strength

To EN 12317-1, 650 / 400 N/50mm.

Guidance for specification option:

Shear resistance.

Resistance to impact

To EN 12691, 900 mm.

Sustainability data

Contains Red List materials

No

Material

Bitumen

Felt

Third party certifications

ISO 9001 Quality Management

ISO 9001 Quality Management

ISO 9001 Quality Management

Literature

Material Safety Data Sheet - Proteus Pro-Felt Plain Dispersion Underlay

Material Safety Data Sheet - Proteus Pro-Felt Plain Dispersion Underlay

Case studies

Case Study - Proteus Pro-Felt® - CO-OP Wembley

Case Study - Proteus Pro-Felt® - CO-OP Wembley