weber.thermXP

weber.therm XP is the new generation of external wall insulation systems from weber, using specially designed mineral one-coat renders.

• Increasing energy efficiency leading to economic benefits
  
• One coat application, significantly reducing the 'programme of works' and all associated costs
  
• Through-colour, thick mineral render for low maintenance and durability
  
• Provides efficient thermal insulation for refurbishment and new build projects
  
• Particularly suited to high rise applications and for areas where high impact resistance is required
  
• Eliminates interstitial condensation by creating a 'warm wall' construction
  
• High strength mechanical fixings allow application to existing 'suspect' or friable surfaces
  
• Quality assured raw materials
  
• Supported by comprehensive technical and architectural services

weber.therm M1 and L1 are available in 12 standard and 24 standard special colours. See colour charts on the right side of this page.

weber.sil P, for use with weber.therm L2, is available in a wide range of colours. See colour charts on right side of this page.

The quality of application of these materials depends on suitable operative skills and product familiarity.

Restrictions on weather conditions during application and curing must be respected.

Sound trade practices and printed instructions must be followed.

Good access and appropriate protection must be provided.

Existing rendered substrates Hammer test and remove all areas of loose, 'bossed' hollow render.

Treat surfaces with weber CL150, a biocidal wash, to remove any traces of organic growth.

Make good surface using weber.rend stipple and weber.rend TUC or weber.rend PUC.

New-build masonry or frame structure Ensure all surfaces are clean, in plane and of adequate thickness to provide appropriate support and stiffness without deflection or edge protrusions.

The following products are used in the weber.therm XP system.

Click on the product you would like to have information on.

• weber CL150
• weber.rend stipple
• weber.rend TUC
• weber.rend PUC
• weber.therm L1
• weber.therm L2
• weber.therm M1
• weber.sil P

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 3 m and 2.5 m lengths.

Trims and flashings such as overcills and copings, are available in PPC aluminium in 2.5 m lengths or made to order.

Metal lath Expanded metal lath is available in:

Fixings<//u>

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 weber.therm XP system is securely fixed back to the substrate.

Render<//u>

weber.therm L1 is a factory batched, through-coloured render for expanded metal lath and can be scrape textured, dry dashed or spray roughcast finished.

weber.therm M1 is a factory batched, through-coloured render for meshcloth and can be scrape textured, dry dashed or spray roughcast finished.
weber.therm L2 is a factory-batched, lightweight render for expanded metal lath with a plain finish.

weber.sil P is a high-performance mineral paint.

Lath option

Fix base and other full system beads as specified.

Fit the insulation, render-only beads (where specified) and lath as described in the System Specification Sheet or relevant project documentation.

Apply weber.therm L1 or weber.therm L2 render as directed on the relevant data sheet.

Mesh option

Fix base and other full system beads as specified.

Fit the insulation and render-only beads (where specified) as described in the System Specification Sheet or relevant project documentation.

Apply weber.therm M1 render laying-in meshcloth after first pass (refer to pages 200 - 201 for full information on use of product).

Note:
weber.therm L1 & weber.therm M1 can be scrape textured, dry dashed or spray roughcast finished.
weber.therm L2 is float-finished and sponged prior to the application of weber.sil P.
Dilute and apply a first coat of weber.sil P using a wool roller. Apply a second undiluted coat after the first coat is dry (refer to page 185 for further information).

Good practice
Do not apply mineral renders:

• 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

During the planning stages of a project, advice should be sought from weber technical staff.

Advice based on technical expertise together with unrivalled practical experience is freely available and covers:

Design: assistance with the selection of the appropriate system, including working details and U-value calculations.

Pre-Contract Documentation: specifications, typical details, method statements.

Contract Documentation: site packages, available through the specialist contractor. These include approved details, specification and site procedures. weber Customer Services Department has a team of
experienced advisors available to provide on-site advice both at the
specification stage and during application. Detailed specifications
can be provided for specific projects or more general works.
Site visits and on-site demonstrations can be arranged on request.

Technical helpline
Tel: (01525) 722110
Fax: (01525) 718988

Sales, England and Wales
Tel: (01525) 722100
Fax: (01525) 718988

Sales, Scotland
Tel: (0141) 445 0121
Fax: (0141) 445 0122

Sales, Ireland
Tel: (028) 9335 2999
Fax: (028) 9332 3232