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Description

The WBS Phenolic Insulated Render System offers a versatile solution for both new build and refurbishment applications and is ideal for use on a variety of substrates including brickwork, blockwork, steel, timber frame and structural insulated panels (SIPS).

WBS Phenolic insulation boards are manufactured without the use of CFCs or HCFC’s and therefore have a Zero ODP. Phenolic insulation is an extremely versatile, high performance insulant that offers extremely low levels of thermal conductivity, with K-values as low as 0.020 W/m²K. This system is therefore ideal for use on the refurbishment of non-traditional residential dwellings that have been designated defective and which offer very poor levels of heat retention but with little room for extending the buildings footprint. The insulation boards display a tissue based facing on both sides and are manufactured to the highest standards under quality control systems approved to BS EN ISO 14001:2004.

The WBS Phenolic Insulated Render System can be finished using a variety of final finishes or textures including thin coat silicones & acrylics, cementitious renders, dashing aggregates and brick slips.

Features:

  • Low thermal conductivity insulant: 0.020–0.023 W/m²K.
  • High performance can be achieved at minimal system thicknesses.
  • Class O Fire rating.
  • Suitable for new build and refurbishment projects.
  • Suitable for high, medium and low rise properties.
  • Fixing options –mechanical only, adhesive & mechanical.
  • BBA Certified.
  • BS8414 Certified.

Durability:

  • This system has an assessed anticipated lifespan in excess of thirty years.

Movement joints:

  • Where movement joints are present in the existing substrate, it is highly recommended that they are carried through the WBS system. Please consult with WBS Technical Support for further details on where movement joints are required.

Design Considerations:

  • Should the proposed project incorporate any unique design elements or curved elevations, please contact WBS Technical Support for recommendations or assistance.

General information
Features

Low thermal conductivity insulant: 0.020–0.023 W/m²K

High performance can be achieved at minimal system thicknesses

Class O Fire rating

Suitable for new build and refurbishment projects

Suitable for high, medium and low rise properties

Fixing options –mechanical only, adhesive & mechanical

BBA Certified

BS8414 Certified

Uniclass 2015
Adhesive-fixed external wall insulation systems (Ss_25_45_72_02)Primary
Specification data - Adhesive-fixed external wall insulation systems
Product Reference

WBS Phenolic External Wall Insulation System

Substrate -
Type

Existing brickwork/ blockwork

New brickwork/ blockwork

SFS/ Steel frame

SIPS

Timber frame

Substrate preparation

Not required

WBS Fungicidal Wash

WBS Stabilising Solution

Movement joints

Not required

Required

Insulation -
Type

WBS Phenolic Insulation Boards

Thickness

Insert requirement.

Insulation fixing

Mechanical only

Adhesive and mechanical

Secondary Fixing

Required

Not required

Board adhesive

WBS Bedding Adhesive

Reinforcement -
Type

WBS Alkali Resistant Scrim Cloth incorporated into bedding adhesive

WBS Galvanized Profiled Brick Mesh

Reinforcement adhesive

WBS Scrim Adhesive

WBS UF Adhesive

WBS Premium Scrim Adhesive

WBS K&A Adhesive

WBS HPX Adhesive

WBS Brick Slip Adhesive

Finish -
FinishType

WBS Ashlar Effect Render

WBS Brick Effect Render

WBS Brick Slip

WBS Epsibrick 7 mm Brick Slip

WBS Epsicoat Mineral Render Plus

WBS Heck ED Mineral Render

WBS Roughcast

WBS Silicone/ Acrylic 'K', Grain size ___ mm

WBS Silicone/ Acrylic 'R', Grain size ___ mm

WBS Spar Dash Finish

Colour

Insert requirement.

Accessories

WBS Aluminium beads, trims & amp; profiles

WBS Plastic beads, trims & amp; profiles

WBS Polyester coated galvanized steel beads, trims & amp; profiles

WBS Stainless steel beads, trims & amp; profiles

WBS Low Modulus Silicone Sealant

Standard product features

Insulation:

- WBS Phenolic Insulation Boards:

  • 1200 x 600 mm x thickness to suit project requirements.
  • The boards achieve a thermal conductivity (λ–value) of 0.023 W/m²K (insulation thickness < 24 mm), 0.021 W/m²K (insulation thickness 25–44 mm) and 0.020 W/m²K (insulation thickness 45–120 mm).
  • Thermal calculations are carried out for each project to help to determine the thickness of insulation required to meet current Building Regulation requirements.

- Fire performance:

  • WBS Phenolic Insulation is a non-combustible insulant classified as Class A1 – (BS EN 13501-1: 2002), when tested in accordance with BS EN ISO 1182.
  • Where fire breaks are required, please refer to BR 135 ‘Fire Performance of External and Thermal Insulation for Walls of Multi Storey Buildings’; 2nd edition, 2002, for guidance.

Product Options

Fixings:

  • Where mechanical fixings are required, the length, type and number of fixings required can only be determined following an on-site pull out test.
  • Secondary pinning may be required on high-rise applications. Please consult with WBS Technical Support for recommendations.

Finishes:

- Polymer modified renders:

  • A range of BBA certified through coloured polymer modified renders are available in a variety of colours. Special colours may be available on request.

- Dry dash:

  • A wide range of coloured dashing mortars and complimentary dashing aggregates are also available. A list of standard colours can be found at www.wbs-ltd.co.uk/wetherby-systems/system-finishes/polymer-modified-renders/dry-dash-finishes.

- Flexible Silicone & Acrylic Finishes:

  • WBS flexible silicone & acrylic thincoat finishes are supplied pre-mixed and are available in 100 standard colours. Special colours and colour-matching to other manufacturer's palettes may be available on request. WBS silicone and acrylic finishes are available in four standard grain sizes in the 'K' range and two grain sizes in the 'R' range. Other grain sizes can be acquired on request.
  • WBS Silicone & Acrylic systems are certified for European Technical Approval from the DIBT, Germany. ETA is an EEC wide accepted equivalent to BBA. Standard.
  • Please consult with WBS technical department before specifying any dark colours with a lightness value of less than 20.

- Epsibrick Brick Slips:

  • The basis of the WBS Epsibrick Brick Slip System is the specially profiled galvanised steel/ stainless steel brick mesh which is fixed directly onto the EWI system. The mesh is fixed using specialist fasteners of the appropriate length to give a suitable penetration into all types of substrate, which must comply with wind loading requirements. Due to the overall weight of the system, it is recommended that WBS brick slips are only used up to three storeys.

- Epsibrick 7 mm Brick Slips:

WBS Epsibrick 7 mm Brick Slip System incorporating real clay brick slips adhesively fixed to a high impact, reinforced basecoat. The reduced brick slip thickness makes this an extremely durable, lightweight system, offering a wide range of colours, enabling tenants to retain the look of their original brick façade.

-Epsicoat Mineral Render Plus:

A unique through coloured mineral render requiring no painting or sealer coat. This system allows application in lower temperatures/ higher humidity and is rainproof within 2 hours. Available in 8 standard colours. Details of the Epsicoat Mineral Render Plus system can be found at: www.wbs-ltd.co.uk/wetherby-systems/system-finishes/mineral-renders/mineral-render-plus/

-Heck ED Mineral Render:

A high performance mineral render allowing quicker drying times in lower temperatures/ higher humidity. Heck ED Mineral Render requires 2 coats of silicone paint, tinted to the colour of the clients choice with 100's of options available through our NCS colour range. Details on the Heck ED Mineral Render system can be found at: www.wbs-ltd.co.uk/wetherby-systems/system-finishes/mineral-renders/epsicoat-heck-ed/

Third party certifications

Additional certifications:

  • Certificate 03/4058
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