LicataTherm Masonry EPS Silicone Render External Wall Insulation System - External Wall Insulation System
Verified by manufacturer 1 month ago
External wall insulation system using EPS boards with silicone render finish, designed for masonry substrates to improve thermal performance, weather resistance, and façade appearance.
Application
The LicataTherm Masonry EPS Silicone Render External Wall Insulation System is applied to external masonry walls to improve thermal performance and provide a durable, decorative finish.
Installation typically begins with assessment and preparation of the substrate to ensure it is clean, sound, and free from contaminants. A starter track is fixed at the base level, and EPS insulation boards are then adhesively bonded and/or mechanically fixed to the substrate in a staggered pattern to minimise thermal bridging.
Once the insulation layer is installed, a polymer-modified basecoat is applied, into which an alkali-resistant glass fibre reinforcing mesh is embedded to provide strength and impact resistance. Additional reinforcement is incorporated around openings and stress points such as windows, doors, and corners.
After curing of the basecoat, a primer is applied where required, followed by the silicone render finish. The render is applied to the specified thickness and finished to the desired texture.
The system is suitable for use on residential, commercial, and public sector buildings, including refurbishment of existing properties and new-build construction. It can be applied to a variety of masonry substrates, including brickwork, blockwork, and concrete, subject to suitability assessment.
All components should be installed in accordance with Licata’s technical specifications and current best practice to ensure optimal performance and durability.
Description
The LicataTherm Masonry EPS Silicone Render External Wall Insulation System is a high-performance external wall insulation (EWI) solution designed for upgrading the thermal efficiency and appearance of existing and new-build masonry substrates.
This system incorporates expanded polystyrene (EPS) insulation boards mechanically and/or adhesively fixed to the external face of the wall, reinforced with a polymer-modified basecoat and alkali-resistant glass fibre mesh, and finished with a durable, breathable silicone render.
The system is engineered to significantly reduce heat loss, improve airtightness, and enhance the overall energy performance of buildings, helping to meet current Building Regulations and energy efficiency targets. It is suitable for use on a range of masonry substrates including brick, blockwork, and concrete.
The silicone render finish provides excellent weather resistance, high water repellency, and vapour permeability, helping to protect the building fabric while allowing it to breathe. Its flexibility reduces the risk of cracking, and its low dirt pickup properties ensure a long-lasting, aesthetically pleasing façade with minimal maintenance.
Key benefits include:
- Improved thermal performance and reduced energy consumption
- Enhanced weather protection and durability
- Breathable system allowing moisture vapour diffusion
- Crack-resistant reinforced basecoat system
- Wide range of colours and finishes available
- Suitable for refurbishment and new-build applications
The system is designed as part of a complete tested build-up, ensuring compatibility between all components and consistent performance when installed in accordance with Licata’s guidelines.
General information
Color | Clear Beige Black Blue Brown Manufacturer guidanceRender colour Finishes are available in over 700 colours and shades and also most RAL and NCS colours. |
Finish | Smooth Textured Manufacturer guidanceAvailable in a choice of grain sizes from 0.7mm - 2.0mm to give a stippled effect, smooth finishes also available. |
Material | Silicone Expanded polystyrene (EPS) |
Shape | Other |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | Ten year 25 year Manufacturer guidanceIf installed by an approved Licata installer, both 10 and 25 year material warranties are available depending on the project requirements and detailing. 25-year warranties can be under written to meet the requirements of EWI energy saving grants. Licata provides guarantees for material defects on all Licata approved systems that are installed by their accredited contractors. These guarantees are valid for the initial ten years of the system's life and in addition they can also offer 25 years' extended warranties for projects supported by government schemes, extended warranties are available through third-party insurance partners such as SWIGA, subject to terms and conditions. For more details on these guarantees, please contact the manufacturer. |
Uniclass | |
CAWS | M21/20 External wall insulation systems M21/210 Rendered external wall insulation systems |
Product range |
Specification data - External wall insulation systems
Classification data | |
System performance | Thermal performance. |
Preparation | Approved proprietary biocidal wash. Surfaces must be sound, free from loose material and clean. Guidance for specification option: Where an adhesive system is used, the surfaces must be sound, free from loose material and clean. Where additional mechanical fixings are to be used, the substrate must be capable of sustaining the design loads. Existing substrates that show visible signs of algae and mold will require treating with an approved proprietary biocidal wash prior to any render works. |
Support rails and brackets | |
Boards | |
Fixings | Manufacturer guidanceAll fixings are based upon Etag and BBA certification and the manufacturers products are designed and tested to fully comply with current required certifications and testing. |
Insulation | |
Material | Grey expanded polystyrene (EPS) boards. Guidance for specification option: Greutherm White and Grey Expanded Polystyrene (EPS 70 and EPS 100) Insulation Boards, 1200 x 600 mm in a range of thicknesses from 40–200 mm, with a nominal density of 15 to 26 kg·m³, compressive strength of 70 kN·m² and 100 kN·m², and a minimum tensile strength of 150 kPa. Boards are manufactured to comply with BS EN 13163: 2012 and classified as Euroclass E in accordance with BS EN 13501-1: 2007. |
Adhesive | Licata Raso Top 800. |
Additional mechanical fixings | Dakota PP-La. Guidance for specification option: Polypropylene with Polyamide PA6 pins. Fischer Termoz 8 U. Guidance for specification option: Polyamide PA6 with stainless steel or electro-galvanized pins. Fischer Termoz 8 UZ. Guidance for specification option: Polypropylene with Polyamide PA6 pins. Fischer Termoz WS 8 L. Guidance for specification option: Polyamide PA6 with stainless steel or electro-galvanized pins. Fischer Termoz 8 NZ. Guidance for specification option: Polypropylene with Polyamide PA6 or electro-galvanized pins. Ejot EjoTherm SDM-T. Guidance for specification option: Polyamide PA6 with stainless steel or electro-galvanized pins. Ejot EjoTherm NT U. Guidance for specification option: Polyethylene, PE-HD with stainless steel or electro-galvanized pins. Ejot EjoTherm NK U. Guidance for specification option: Polyethylene, PE-HD with stainless steel or electro-galvanized pins. Ejot EjoTherm NTK U. Guidance for specification option: Polypropylene with Polyamide PA6 GF 50 pins. Ejot EjoTherm SDK U. Guidance for specification option: Polyethylene, PE-HD with stainless steel or electro-galvanized pins. Ejot EjoTherm STR U. Guidance for specification option: Polyethylene, PE-HD with stainless steel or electro-galvanized pins. Manufacturer guidanceDesigned and tested to meet the current wind load and suction requirements, the system is adhesively fixed with supplementary fixings in accordance with BS EN 1991-1-4:2005. Special consideration should be given to locations with high wind-load pressure coefficients, as additional fixings may be necessary. It is recommended that a load factor of 1.5 is used to determine the ultimate wind load, in accordance with BS EN 1990:2002. |
Beads and trims | Licata PVC stop beads. Licata meshed corner beads. |
Render carrier or reinforcement | |
Material | Glass fibre mesh. Guidance for specification option: Alkali resistant fibreglass reinforcement mesh, embedded into basecoat (Licata Raso Top 800). |
Render | |
Application | Licata Isolante LG Top Coat Pigmentable Primer. |
Decorative finish | Licata Siloxan Color - silicone render. Guidance for specification option: Grain sizes available: 1 mm, 1.2 mm, and 1.5 mm. |
Colour | Guidance for specification option: Render colour finishes are available in over 700 colours and shades and also most RAL and NCS colours. Consult manufacturer and insert requirements. |
System accessories | Licata movement beads. APU with mesh 9 mm. Compression band. |
System completion | Inspection of completed installation. |
Samples required | Submit samples of Licata Topcoat finishes for approval. Keep approved samples on-site for the duration of the contract for inspection/ comparison purposes. Designated items: Licata Topcoat Finishes. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Italy Guidance for specification option: Render materials excluding insulation boards. |
Country of product manufacture | Italy Guidance for specification option: Render Materials excluding insulation - Italy. Insulation boards UK & Germany. Manufacturer guidanceRender Materials excluding insulation - Italy. Insulation boards UK & Germany. |
Material | Silicone Expanded polystyrene (EPS) |
Recyclability | 100% Guidance for specification option: Insulation materials. |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 100 % |
Literature
Licata Render Systems Brochure
LicataTherm External Wall Insulation Systems Brochure
Licata Acrylic Brick Slips Brochure
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