About this product
weber.therm L2 is a new-generation one-coat, lightweight, polymermodified cementitious render for use below DPC. It is part of the weber.therm XP external wall insulation range.
Features and Benefits
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Speed of application – one coat
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Thick mineral render for low maintenance and durability
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Quality assured raw materials
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Ready mixed: only the addition of potable water required on site for ease of use
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Supported by comprehensive technical and architectural services
Constraints
The quality of application of this material 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.
Technical data
Preparation
Ensure insulation and lath are securely fixed back to the substrate.
Remove any bulges in the lath and ensure all lath overlaps are tied as required.
Application
Plain finish
Mix 20kg of weber.therm L2 with 5.25 – 5.75 litres of potable water and apply to a minimum thickness of 15 mm in one or two passes ensuring lath is completely encapsulated. Rule level, and when material begins to ‘take up’, float and sponge finish in the normal manner.
The floated render thickness must be a minimum of 15 mm.
Allow to dry and shrink completely before applying weber.sil P mineral paint. This will depend on weather conditions, but normally requires a minimum of 36 hours.
Good practice
Do not apply:
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If frost is forecast within 24 hours of use
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In damp/wet conditions
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In temperatures below 5°C or above 30°C
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On elevations in direct sunlight or where the substrate is hot
weber.therm L2 will set and gain hardness in a similar manner to conventional renders.
Coverage
Note: This estimate takes no account of wastage and will vary according to the method of application.
| Nominal thickness | Coverage |
| 15 mm | 18 kg/m2 |
Storage and Shelf life
Store in clean, dry conditions above 5°C. When stored unopened in correct conditions a shelf life of 12 months can be expected. Protect from frost.
Health and Safety
Contains cement.
For further information, please request the Material Safety Data Sheet for this product.
Technical support and advice
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.
Technical services
weber's 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 demonstration can be arranged on request.
Technical Helpline
Tel: (01525) 722110
Fax: (01525) 718988
Sales Contact
Sales, England & 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
