Dryvit – a brand of CPG UK Ltd Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

  • BSI Kitemark

    BSI Kitemark

    Certificate type

  • QA Certificate

    QA Certificate

    Certificate type

EWI and finish system incorporating either mineral wool slab (Roxsulation S) or mineral wool lamella (Roxsulation L) insulation. Suitable for use over solid or framed substrates.

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Dryvit’s Roxsulation is a cost effective external wall insulation (EWI) suitable for use on either new construction or refurbishment projects. The system is based on a simple premise – insulation is more effective when placed on the exterior of a building. By bringing insulation to the outside of external walls, this barrier EWI eliminates thermal bridges; reduces air, wind and moisture penetration through the system; stabilises interior environments and minimises thermal shock.


  • Design freedom. The system can be installed over a variety of substrates. Expanded polystyrene (EPS) insulation is lightweight and can be cut or grooved to various shapes and surface patterns.
  • Energy efficiency. Roxsulation enables new or existing buildings to meet strict energy efficiency requirements. Heating or cooling costs are demonstrably lower in lieu of other exterior materials.
  • Weatherability. Dryvit EWI are formulated to provide the utmost in weather protection, providing a resilient barrier against the elements.
  • Durability. The combination of system components provides unsurpassed long-term durability meeting design requirements for use in virtually any location.
  • Aesthetics. Dryvit finishes are available in a wide array of textures in both standard and custom colours. Their speciality finishes enable designers to replicate a variety of real stone or brick finishes from limestone to granite at a fraction of the cost.
  • Cost effective. Roxsulation is easily adapted to complex project details. Installation is rapid, and routine maintenance is minimal.
  • Testing. Independently certified by BBA and other international test bodies. Dryvit manufacturing plants are ISO 9001: 2000 certified, demonstrating the highest standards of quality and consistency.

General information



Silicone based technology textured finish.


Dry cement based mixtures enriched with synthetic resins (overcoat with Silstar).


Silicate finish.

Uniclass 2015

Ss_25_45_72_02 Adhesive-fixed external wall insulation systemsPrimary


M21/20 External wall insulation system

M21/210 External wall insulation system

Specification data - Adhesive-fixed external wall insulation systems

Product Reference





Dryvit MW DD slab 1.2 x 0.6 m

Dryvit MW lamella 1.0 x 0.2 m



Silicone based technology textured finish.


Dry cement based mixtures enriched with synthetic resins (overcoat with Silstar).


Silicate finish.



HDP finish.

Quarzputz 2 mm aggregate

HDP, Roxtex and SLK finishes.

Sandblast 1 mm aggregate

Roxtex finish.

Sandpebble 1.5 mm aggregate

HDP, Roxtex and SLK finishes

Sandpebble fine 1 mm aggregate

HDP finish.


Refer to standard colour range for details and insert requirements.


Not required


Extensive range available, consult manufacturer for details.

Standard product features


  • Method of fixing: Roxhesive and/ or mechanical fixings in accordance with manufacturer's recommendations.
  • Non-combustible insulation for fire rated construction.


Standard Mesh. Panzer 20 and standard mesh to areas subject to high impact.

Detailing mesh:

Dryvit detail mesh suitable for back wrapping EWI at termination details, forming reveals, masking Fire barriers prior to placing general reinforcing mesh, forming groove details.

Beads/ Trims:

Dryvit Aluminium Starter Track to thickness of insulation mechanically fixed with suitable hammer head or self-tapping fixings to base of system.

Render base coat:

Dryvit Primus Rox M.

Product Options


Consult with Dryvit for details of preparation to suit project substrate. Use fungicidal wash by system manufacturer. If required, specify in 'Structural substrate' clause.


  • HDP: Proprietary, silicone based technology textured finish which promotes hydrophobicity enhancing reduced dirt pick up properties.
  • Roxtex: Roxtex finishes are dry cement based mixtures enriched with synthetic resins that after being mixed with water give a high quality textured finish. Roxtex finishes are white with the final fade resistant colour achieved by over-coating with Silstar façade paints.
  • SLK: Ready to use silicate plaster with exceptional vapour permeability, stain resistance as well as significant mildew and algae resistance.

Brick effect finish or other from speciality finish range are also available, consult with manufacturer for details.


  • Beads/ trims: Dryvit aluminium starter track to thickness of insulation mechanically fixed with hammer head fixings to base of system.
  • Dryvit drainage strip.
  • Expansion/ movement joints: Will be required to reflect such joints in the existing wall plus any movement joints to reduce the risk of cracking in the render finish. Consult with Dryvit for recommendations for type and location.

Third party certifications

  • 98/3548
  • BS EN ISO 9001
  • European Technical Approval (ETA): 09/0038

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