ICF Render System
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ICF Render System

Insulated Concrete Formwork Silicone or Acrylic Finish
System Build-Up

Layer-by-layer system specification

The ICF Render System is Licata's render specification for Insulated Concrete Formwork construction. ICF presents a smooth EPS face, so Raso Top 800 is applied directly to the ICF substrate as a reinforced basecoat, encapsulating the fibreglass mesh, before the Isolante LG primer and decorative finish coat are applied.

The finish can be specified as Siloxan Color silicone render or Lerici acrylic render depending on performance and budget requirements.

ICF Render System Build-Up
System Layers

Products

1
Layer 1: Substrate
ICF (Insulated Concrete Formwork)
Insulated Concrete Formwork substrate. The EPS face of the ICF must be clean, sound and free from contamination. Ensure the concrete core is fully cured before applying the render system.
2
Layer 2: Basecoat
Raso Top 800
Polymer-modified cementitious basecoat, applied directly to the ICF substrate in two passes to encapsulate the fibreglass mesh reinforcement. First pass embeds the mesh, second pass covers it fully. Minimum total thickness 4 to 6mm. Allow to cure fully before priming.
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3
Layer 3: Reinforcement
Fibreglass Mesh
Alkali-resistant fibreglass reinforcement mesh, embedded into the first pass of Raso Top 800 basecoat. Minimum 100mm laps at all joints. Apply additional diagonal mesh at all openings and corners to prevent cracking.
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4
Layer 4: Topcoat Primer
Isolante LG
Silicone-based topcoat primer, applied over the fully cured basecoat to consolidate the surface and provide uniform, controlled absorption for the render finish.
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5
Layer 5: Render Finish
Siloxan Color or Lerici
Siloxan Color silicone render: highly water-repellent, breathable, anti-mould, with a wide colour range. Lerici acrylic render: cost-effective and durable, with a wide range of textures and colours.
Siloxan Color Lerici
Products in This System

Full system, supplied by Licata

Raso Top 800

Raso Top 800

Polymer-modified basecoat. Layer 2, applied directly to the ICF substrate with mesh reinforcement.

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Fibreglass Mesh

Fibreglass Mesh

Alkali-resistant reinforcement mesh. Layer 3, embedded into the Raso Top 800 basecoat.

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Isolante LG

Isolante LG

Silicone topcoat primer. Layer 4, consolidates the basecoat and controls absorption.

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Siloxan Color

Siloxan Color

Silicone render finish. Water-repellent, breathable, anti-mould. Layer 5 option.

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Lerici

Lerici

Acrylic render finish. Durable, with a wide colour and texture range. Layer 5 option.

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Specify this render system

Contact our technical team for product quantities, NBS specification clauses and project-specific advice.

Contact Technical Team All Render Systems