webertherm XM - Multi Layer System

webertherm XM — compatible with external wall insulation boards including rockwool insulation

webertherm XM is a high performance external wall insulation system protected by meshcloth reinforced polymer renders. Compatible external insulation board options include webertherm EPSwebertherm MFD and webertherm PHS.

webertherm XM systems when applied to a masonry substrate have BBA approval covering various types of insulation and many render finishes.

To calculate your project thermal efficiency - use our handy 
U-Value Calculator

System Build-Up

webertherm XM — compatible with external wall insulation boards including rockwool insulation
Decorative Finish

A range of decorative finishes are available in a wide range of colours to finish your webertherm XM system, including:

weber PR310 Primer

Prime the surface with weber PR310 to reduce suction before appling the decorative finish.

If using weberend LAC rapid as the render coat, priming with weber PR310 is not required.

Lightweight Adhesive Render Coat

Use

weberend LAC - polymer-modified lightweight adhesive render coat

or

weberend LAC rapid -  rapid drying, polymer-modified lightweight adhesive render coat.

weber standard meshcloth

weber standard meshcloth is a balanced, open weave, alkaline resistant glass fibre meshcloth.

Standard duty

  • Weight 160 g/m²
  • Mesh dimension 3.5 mm x 3.5 mm
  • Size 1m x 50m roll
Lightweight Adhesive Render Coat

Use

weberend LAC - polymer-modified lightweight adhesive render coat

or

weberend LAC rapid -  rapid drying, polymer-modified lightweight adhesive render coat.

Rigid insulation board

webertherm EPS is shown here, but a choice of insulation can be specified from a range including:

  • webertherm EPS
  • webertherm MFD
  • webertherm PHS

For more information about our webertherm insulation options

Lightweight Adhesive Render Coat

When specified additional fixing or levelling of the insulation board may be required using:

weberend LAC - polymer-modified lightweight adhesive render coat

or

weberend LAC rapid -  rapid drying, polymer-modified lightweight adhesive render coat.

 

Fixings

A wide range is available to accommodate all insulant thicknesses and substrate types. Fixings are specified on a project by project basis and pull-out values are established to ensure the webertherm XM system is securely fixed back to the substrate.

Beads, trims and flashings

Full system and render only beads are available in polyester powder coated galvanised mild steel or grade 304 austenitic stainless steel in 3m and 2.5m lengths. Trims and flashings such as overcills and copings, are available in PPC aluminium in 2.5m lengths or made to order.

About this product

webertherm XM is a solid wall insulation system available in a wide range of colours and textured finishes and is suitable for most building types including non-traditional construction and lightweight steel frame structures.

  • Extends the life of existing buildings by keeping the old structure warm and stable
  • Facilitates the decoration and remodelling of existing, tired facades
  • Simplifies wall construction within the new build sector

Traditional multi-layered render system for exterior wall insulation improves thermal performance and interior comfort. 

Features and benefits

  • Provides efficient thermal insulation for refurbishment and new build projects
  • A variety of insulation options including expanded polystyrene insulation, mineral wool insulation, and phenolic board insulation 
  • Comprehensive range of colours and textures enable the creation of striking visual effects
  • Has a high performance water shedding range of finishes to protect the building fabric
  • Low K-value insulants allow thinner insulation to be used or higher standards to be achieved
  • Eliminates interstitial condensation by creating a 'warm wall' construction
  • Suitable for, and effective on most buildings - including lightweight steel frame structures and in-fill panels
  • BBA approved certificate no. 91/2691
  • NSAI approved certifications 06/0260 and 09/0338 

Things to consider

Do not apply:

  • If frost is forecast within 24 hours of use
  • In damp/wet conditions
  • In temperatures below 5°C or above 30°C
  • On elevations in direct sunlight or where the substrate is hot
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A prefabricated home constructed in 1950 lacking adequate insulation was remedied with the BBA-certified webertherm XM external wall insulation system

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asra Housing Group - Leicester
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Bure Valley School - Norfolk
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B/E Aerospace - Northern Ireland
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Mixenden - Yorkshire
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Middlegate Estate - Great Yarmouth
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Llanwern High School - Newport, South Wales
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Edgwarebury Lane - Barnet, London
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Kilburn Gate - North London
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Thetford Academy - Norfolk
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Freebridge - Norfolk
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University of Cambridge Sports Centre
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Holly Park Estate - Islington
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The Tower - Cwmbran
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Hampton by Hilton - Gatwick
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emh homes - Ilkeston
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Barking Regeneration - Barking, Essex
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100 new build apartments in a mixed use development were specified with high performance webertherm XM external wall insulation

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QEII Hospital, Welwyn Garden City, Herts
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Rawmarsh, Rotherham
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Outstanding college extension in Cork
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High performance webertherm XM External Wall Insulation has been installed in two new buildings that form part of the new extensions to St. Angela’s College in the city centre of Cork.

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Technical & Safety Data Sheets and Certification

Click Compare to help you choose the right product for your project, if you need further assistance please email technical@netweber.co.uk

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