01942 717 100
01942 717 100
info@wbs-ltd.co.uk
Masonry A1 Stone Wool Mineral Render System
The majority of UK Stone Wool External Wall Insulation (EWI) render systems achieve an A2-s1,d0 fire rating. However, Wetherby’s innovative A1 system surpasses this, utilising a specially formulated basecoat, mesh, and Mineral Render finish to achieve the highest European fire classification, A1 according to EN 13501-1 standard.
The thermal benefits come from Wetherby A1 Stone Wool Insulation coated in Wetherby K&A A1 Scrim Adhesive. The system is completed with Wetherby Heck ED Mineral Render and Heck Silicone Paint, ensuring breathability and offering a wide range of colour options. Primarily for high-rise buildings, it’s adaptable to low-rise and non-traditional structures, catering to safety-conscious specifiers.
Watch the A1 Stone Wool Mineral Render System in Action…
You’ll unearth a treasure trove of expertise right at your fingertips by visiting our channel and hitting that subscribe button.
Colour Availability
We have a comprehensive range of 100 standard colours that are available for our Silicone Paint, used to overcoat Mineral Render. With a variety of vibrant and durable options, our silicone renders are designed to enhance the aesthetic appeal and longevity of your projects. Discover our extensive colour range by downloading our brochure below.
Wetherby A1 Stone Wool Mineral Render System Components
Benefits of our A1 Stone Wool Mineral Render System
The A1 Stone Wool Mineral Render System is a revolutionary solution, designed to elevate your projects. This advanced insulation system provides many benefits going beyond traditional methods, offering unmatched performance, sustainability, and breathability.
Innovation
The A1 Stone Wool Mineral Render System is 1 of 7 Wetherby Ofgem approved innovation systems which is eligible for a 25% uplift in funding. The Wetherby innovation systems involves an enhanced specification using stainless steel beads and fixings, following a 60 year life expectancy methodology. The system is then periodically inspected by Measure check (independent company) providing clients with reports on the system condition and allowing extended warranties to be applied for.
To request further information on our innovation systems please contact; Technical Helpline 0800 1073299 or technical@wbs-ltd.co.uk
Technical Information
Specifying an External Wall Insulation system that is suitable for your project can be a challenging practice. Our technical team are on hand to provide detailed job specific specifications and any technical assistance you may require.
| Fire Classification | A1 to EN 13501-1 |
| Design Life | 30 years |
| Impact Resistance | Category II |
| Hygrothermal / Freeze / Thaw Testing | Pass |
| Stone Wool Thermal Values Conductivity | 0.036 W/(m²k) |
| Lambda value | 50mm+ = 0.036 30-40mm = 0.038 |
| Thicknesses Available | 30mm – 250mm |
| Finish Options | Silicone Paint available in a variety of colours |
Typical U-Values
Wetherby Stone Wool insulation offers a 0.036 W/(mK) K value, requiring just 100mm thickness to meet UK refurbishment property U-value standards in the majority of cases.
Technical Data
Technical Drawing Set
Operations & Maintenance Manual
KIWA Certification BAW-23-285-S-A-UK
Specification with NBS
Product Information
At the core of our Stone Wool Silicone Render system lies Rockwool insulation, providing outstanding thermal performance, unparalleled breathability and superior acoustic properties in comparison with other insulants on the market. Stone Wool is classified as A1 non-combustible as an individual product.
- Outstanding thermal and acoustic properties
- Non combustible
- Easily cut and shaped
- Can be installed to flat & curved surfaces
- Open cell structure allows the façade to breath
Wetherby Mineral Render tackles is an ideal product to apply in adverse weather conditions. Its chemical reaction enables drying in damp and high humidity, independent of atmospheric conditions. The standard off-white finish can be transformed with the application of silicone paint as a final top coat, which is included within the fire classification.
- Dry’s independently of humidity
- Highly breathable
- High water-resistance
- Easy application
- Wide colour range available using WBS Silco FF paint
Case Studies
Discover real-world examples where challenges were met with innovative solutions, and obstacles transformed into opportunities.
Hawksford House, St.Helier
Read More
Kingsway House, Warrington
Read More
Lovell Park, Leeds
Read More
Morrison Court, Westminster
Read MoreRelated EWI Systems
We have developed a range of EWI systems ideal for use with various construction methods, view the other systems.
Contact the Team at Wetherby Building Systems
We understand that embarking on a construction project is a significant endeavor, and we’re here to support you every step of the way.
If you have any inquiries, require additional information, or would like to discuss your specific project needs, please don’t hesitate to reach out. Our dedicated team of experts is ready to listen, collaborate, and provide tailored solutions.
