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Langley TA-20 W Flat Roofing System

Verified by manufacturer 2 months ago

Langley Waterproofing Systems Ltd Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

Torch-applied high performance SBS elastomeric membrane warm and cold roof system.

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+44 (0)1327 704778 Website

Application

  • Suitable for use for refurbishment and new build projects (where conditions allow).
  • Suitable for use on all roof decks.
  • Timber board roofs will require a nailed attachment layer in accordance with BS 8747: 2007 before application.

Description

Torch applied, high performance styrene-butadiene-styrene (SBS) elastomeric membrane warm roof system for flat or sloping roofs.


Features and benefits:

  • Robust.
  • Flexible.
  • Slip resisting granule surface provides durability and puncture resistance for foot traffic.
  • Durable glass fibre reinforced vapour barrier provides a robust, watertight layer.
  • Life expectancy of approximately 40 years.
  • Manufactured in accordance with EN 13501-5: 2005.
  • BBA certified.
  • System accessories include rooflights, flashings, refurbishment outlets, vents, and edge trims (specified separately). Consult manufacturer for further details.


Components:

  • Preparation: Langley Spray-On Primer.
  • Air and vapour control layer: Torch-bonded Parevapo S VV (3.77 kg/m²).
  • Insulation: Parafoam Ultra PIR Insulation (3.84 kg/m²).
  • Waterproof covering, first layer: Adepar JS VV (2.7 kg/m²). Attached via self-adhesive strips.
  • Waterproof covering, top layer: Parafor 30 GS (4.6 kg/m²). Torch-bonded.

General information

Color

-

Manufacturer guidance

Multiple colour selections available.

Finish

Textured

Guidance for specification option:

Slip resisting granular surface.

Material

Bitumen

Guidance for specification option:

SBS elastomeric bitumen.

Warranty description

20 year

Guidance for specification option:

Independently insured guarantee for materials and workmanship (only valid when installed by approved contractors).

Uniclass

Ss_30_40_30_72 Reinforced bitumen membrane warm roof covering systemsPrimary

CAWS

J41/10 Reinforced bitumen membrane warm deck roof covering

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

Product range

Flat Roofing Systems

Specification data - Reinforced bitumen membrane warm roof covering systems

Preparation

-

Horizontal work

Langley Spray-On Primer.

Skirtings and vertical work

Langley Spray-On Primer.

Air and vapour control layer

-

Type

Parevapo S VV (3.77 kg/m²).

Attachment

Torch-bonded.

Insulation

-

Type

Parafoam Ultra PIR Insulation (3.84 kg/m²).

Waterproof covering

-

First layer

-

Type

Adepar JS VV (2.7 kg/m²).

Attachment

Attached via self-adhesive strips.

Top layer

-

Type

Parafor 30 GS (4.6 kg/m²).

Attachment

Torch-bonded.

Colour

Guidance for specification option:

Available in several colours, consult manufacturer and insert requirements.

Weight

14.91 kg/m².

Guidance for specification option:

Based on 120 mm insulation thickness.

Resistance class

Resistance class (to MOAT 31): R4.

Vapour control layer

2.9 mm.

Insulation

120 mm.

Top coat

4 mm.

Basecoat

2.2 mm.

Overall thickness

129.1 mm.

Fire performance

Broof [t4].

Guidance for specification option:

To BS EN 13501-5:2016.

BIM objects

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Platform Compatible Version
IFC
-

1

Revit

Revit 2017

1

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

TA-20 BBA

Literature

TA-20 System Data Sheet

TA-20 System Data Sheet

Case studies

Jesus College

Jesus College

Allenby Barracks

Allenby Barracks

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