Expanded Cork Insulation Board (ICB) – Thermal & Acoustic Panels | 10mm–150mm

Expanded Cork Insulation Board (ICB) for Thermal & Acoustic Projects

Expanded Cork Insulation Board, also known as ICB, is a natural insulation panel made from expanded Portuguese cork. It is used in sustainable construction, renovation and interior projects where thermal insulation, acoustic comfort, durability and breathable natural materials are important.

Made in Portugal from expanded cork, this product is available for single-board orders, professional packs, reseller supply and B2B projects. CorkMart supplies ICB boards in thicknesses from 10mm to 150mm for residential, commercial and architectural insulation applications.

Each board measures 1000mm × 500mm and covers 0.5 m². Available thicknesses are 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 50mm, 60mm, 75mm, 80mm, 100mm, 125mm and 150mm.

Technical data

Best for

• Interior wall insulation and thermal correction.
• Acoustic comfort in studios, offices, apartments and technical rooms.
• Floor and ceiling insulation projects.
• Roof, façade and sustainable construction applications, depending on the building system.
• Natural, breathable and durable insulation projects where synthetic foam is not the desired solution.
• Architectural, contractor, reseller and larger renovation projects.

How to choose the right thickness

• 10mm to 25mm: choose this range for light lining, thermal correction, wall backing and acoustic improvement in smaller renovation projects.
• 30mm to 50mm: choose this range for general insulation in walls, floors, ceilings, studios, offices and residential renovation projects.
• 60mm to 80mm: choose this range for stronger thermal and acoustic performance in demanding renovation and construction applications.
• 100mm to 150mm: choose this range for robust building insulation, roofs, façades and high-performance construction systems, subject to project specification.

Board calculator

Each board covers 0.5 m². To estimate how many boards you need:

• Measure the total area in m².
• Divide the area by 0.5.
• Add 5–15% extra for cuts, waste and installation adjustments.

Example: for a 12 m² wall, add 10% waste = 13.2 m². Since each board covers 0.5 m², 13.2 ÷ 0.5 = 26.4 boards. In this case, order approximately 27 boards or choose the closest pack format.

Pack formats

• 1 Board: covers 0.5 m².
• Pack 5 m²: includes 10 boards.
• Pack 10 m²: includes 20 boards.
• Pack 25 m²: includes 50 boards and is ideal for larger projects.

Special prices for resellers and projects above 50 m²

For resellers, architects, contractors and projects above 50 m², CorkMart can provide special project pricing and freight coordination. Send us the required thickness, total area, delivery country and postcode so our team can review the best commercial and logistics option.

Request a reseller, project or freight quote

Why choose expanded cork insulation?

• Made from natural Portuguese cork.
• Supports thermal insulation and acoustic comfort.
• Breathable, durable and dimensionally stable.
• Suitable for sustainable construction and renovation projects.
• Natural alternative to synthetic insulation materials.
• Premium material for architects, builders, studios and interior projects.

Shipping and project orders

ICB is a lightweight but bulky insulation product. Small quantities may ship by parcel courier, while larger packs or multi-pack orders may require pallet freight or shipping validation depending on the destination.

Larger formats, especially 10 m² and 25 m² packs in thicker options, may require pallet freight or manual freight confirmation due to volume and handling requirements.

For EU orders and international projects, shipping conditions may vary by order value, volume, thickness and destination. Larger project orders can be reviewed by the CorkMart team to confirm the best logistics option.

FAQ

What is expanded cork insulation board?
Expanded Cork Insulation Board, or ICB, is a natural cork panel used for thermal insulation, acoustic comfort and sustainable building applications.

What sizes are available?
Each board measures 1000mm × 500mm and covers 0.5 m². Available thicknesses range from 10mm to 150mm.

What is the density of ICB?
The approximate density range is 105–125 kg/m³.

Which thickness should I choose?
Choose 10mm to 25mm for light lining and thermal correction, 30mm to 50mm for general wall, floor and acoustic projects, 60mm to 80mm for stronger insulation, and 100mm to 150mm for more demanding construction applications.

Can I use ICB for acoustic insulation?
Yes. Expanded cork boards can support acoustic comfort in walls, floors, ceilings, studios, offices and residential spaces.

Can I use ICB for thermal insulation?
Yes. Expanded cork insulation boards are commonly used in thermal insulation systems for walls, floors, roofs, façades and sustainable construction projects.

How many boards do I need?
Divide your total area by 0.5 m² and add 5–15% extra for cuts and waste.

Can the boards be cut?
Yes. Boards can be cut on site to fit corners, edges, openings and installation details.

Do you offer reseller or project prices?
Yes. For resellers and projects above 50 m², contact CorkMart with the total area, thickness, delivery country and postcode.

How is ICB shipped?
Small orders may ship by parcel courier. Larger packs or multi-pack project orders may require pallet freight or logistics validation.