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Masonry Stone Wool Dash Render A2 Rated External Wall Insulation System - External Wall Insulation System
Verified by manufacturer 10 hours ago
External wall insulation system incorporating a range of components including A1 non-combustible stone wool insulation and a traditional dry dash aggregate finish.
Application
Suitable for a range of projects, including local authority refurbishments, retrofit schemes, remediation and new build projects.
Description
External wall insulation system for masonry substrates, incorporating an A1 non-combustible stone wool insulation board, this system achieves a system fire classification of A2-s1,d0 to BS EN 13501-1.
Providing a dry dash finish with aggregates, it provides a versatile, waterproof solution. It is suitable for full elevations, or in combination with other Wetherby finishes like brick effect render or brick slip.
Features and benefits:
- Durable and long lasting.
- Water-resistant.
- Low maintenance.
- Fire classification: A2-s1,d0 to EN 13501-1.
- Design life: 30 years, 60 year option available.
- Impact resistance: Category I.
- Hygrothermal/ freeze/ thaw testing: Pass.
- Stone wool thermal conductivity: 0.036 W/mK.
- Insulation thicknesses available: 30–250 mm.
- Finish options: dry dash aggregate available in a variety of colours.
- BBA certified.
General information
Color | White Red Yellow Brown Beige |
Finish | Dry dash Textured |
Material | Aggregate Mineral wool Stone wool Aluminium Fiber-glass |
Shape | Other |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | Ten year 25 year |
Uniclass | |
CAWS | M21/210 Rendered external wall insulation systems M21/20 External wall insulation systems |
Specification data - External wall insulation systems
Classification data | |
System performance | Durability - 30 years; fire performance to EN 13501-1, Class A2-s1,d0. Durability - 60 years; fire performance to EN 13501-1, Class A2-s1,d0. Guidance for specification option: The system’s service life can be extended to 60 years provided a planned inspection and maintenance programme is introduced. An extended 60 years service life also requires the use of certain components - consult manufacturer for details. |
Support rails and brackets | |
Fixing method | |
Material | Wetherby galvanized and power-coated steel base rail. Guidance for specification option: 2.5 m long. Wetherby stainless steel base rail. Guidance for specification option: 2.5 m long. |
Bracket fixings | Hit M 6 x 40 mm. Guidance for specification option: Zinc-coated expansion sleeve with a polyamide 6 body. 40 mm long by 6 mm diameter. |
Insulation | |
Material | Wetherby stone wool insulation. Guidance for specification option: Rockwool External Wall Dual Density Slab. Thermal performance ranging from 0.030 Wm²/K. Thicknesses between 30–250 mm (in 10 mm increments).
|
Adhesive | Wetherby insulation bedding adhesive (where required). Guidance for specification option: Wetherby Insulation Bedding Adhesive is a cement based, polymer modified adhesive that offers improved adhesion for bedding of EPS and Stone Wool External Wall Insulation Systems. Suitable for use on multiple masonry substrates. Contact manufacturer for more details regarding suitable primers and substrates. Consult manufacture's literature for more details. |
Additional mechanical fixings | SPIT ISO 10. Guidance for specification option: Polypropylene plastic expansion sleeve with a polypropylene or polyamide 6 plastic pin. TFIX-8M. Guidance for specification option: Polypropylene sleeve with electro-galvanized steel pin. R-TFIX-8M. Guidance for specification option: Polypropylene sleeve with electro-galvanized steel pin. R-TFIX-8S. Guidance for specification option: Polypropylene sleeve with electro-galvanized steel pin. Ejot DMH 8. Guidance for specification option: Stainless steel anchor. Rawl MBA-SS. Guidance for specification option: Stainless steel facade fixing. Other. Guidance for specification option: Other fixings may be used provided they can be demonstrated to have equal or higher pull-out, plate diameter and plate stiffness characteristics. Consult manufacturer for details. |
Beads and trims | Render beads. Manufacturer guidanceConsult manufacturer and insert requirements. |
Movement joints | |
Form with | Render beads. Guidance for specification option: Consult manufacturer and insert requirements. |
Sealant | Arbosil LMS. Guidance for specification option: Arbosil LMS is a one-part neutral cure silicon sealant which cures on exposure to moisture vapour to form an elastic silicone rubber. Available in a range of colours; consult manufacturer's literature for more details. Nullifire FS703. Guidance for specification option: FS703 is a low modulus, neutral cure, silicone sealant, suitable for linear gaps sealing in order to reinstate the fire performance in compartment walls and floors. Available in white as standard and black and grey upon request (may be subject to minimum order quantities). Consult manufacturer's literature for more details. |
Render carrier or reinforcement | |
Material | Alkali resistant reinforcing scrim cloth (R 131 A101). Guidance for specification option: Alkali-resistant glass fibre mesh. Nominal weight of 160 g/m². |
Mesh size | 3.5 x 3.8 mm. Guidance for specification option: Supplied in 50 x 1 m rolls and available in 1.1 and 0.5 mm thickness. Insert requirements. |
Fixings | SPIT ISO 10. Guidance for specification option: Polypropylene plastic expansion sleeve with a polypropylene or polyamide 6 plastic pin. TFIX-8M. Guidance for specification option: Polypropylene sleeve with electro-galvanized steel pin. R-TFIX-8M. Guidance for specification option: Polypropylene sleeve with electro-galvanized steel pin. R-TFIX-8S. Guidance for specification option: Polypropylene sleeve with electro-galvanized steel pin. Ejot DMH 8. Guidance for specification option: Stainless steel anchor. Rawl MBA-SS. Guidance for specification option: Stainless steel facade fixing. Other. Guidance for specification option: Other fixings may be used provided they can be demonstrated to have equal or higher pull-out, plate diameter and plate stiffness characteristics. Consult manufacturer for details. |
Render | |
Application | Finish coat. |
Material | Wetherby dash receiver. Guidance for specification option: A cementitious ready-mixed render supplied as a powder to which clean water is added. |
Decorative finish | Wetherby dry dash aggregate. Guidance for specification option: Aggregates up to 8 mm and available in a range of colours, consult manufacturer and insert requirements. |
Colour | Guidance for specification option: Available in a wide range of colours; consult manufacturer for more details and insert requirements. |
System accessories | Manufacturer guidanceConsult manufacturer for details and insert requirements. |
Scrim adhesive | Wetherby scrim adhesive. Guidance for specification option: Cement-based, polymer modified basecoat. |
Impact resistance | Category I. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Europe |
Country of product manufacture | Europe |
Manufacturing plant location | |
Material | Aggregate Mineral wool Stone wool Aluminium Fiber-glass Fibre-reinforced Mineral board Mineral fibre Rock fibre Rock fibre mineral wool Rock mineral fibre Rock mineral wool Stonewool Cementitious Render |
Expected Life | 30 year 60 year |
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