BioGran Granulated Cork

BioGran is obtained by grinding reclaimed materials and processing scraps from BioCork panels, retaining all their inherent qualities: rot resistance, durability, stability, and insensitivity to water and moisture.

Available in various grain sizes, BioGran is typically used:

• As-is for thermal and acoustic insulation of cavity walls via blow-in insulation (RENT the insulator and carry out the work yourself!),

• Or mixed with sealant or cement to produce lightweight screeds and attic insulation layers.

It is sold in 0.125 m³ bags, to make 1 cubic meter you need 8 bags

Discover the Many Applications of Light Granulated Cork!

1. Wall Cavity Insulation Use: Filling the gaps in double-wall cavities for thermal and acoustic insulation.

• Small holes are drilled at the top of the internal or external walls.

• Cork is blown in using an insulation blowing machine (see equipment and RENTAL page).

• Holes are sealed afterward with mortar or putty. Note: Ideal for existing buildings with uninsulated cavity walls.

2. Attic and Non-Walkable Floor Insulation Use: Seasonal thermal insulation for floors above unheated spaces or ventilated roofs. Application:

• Cork is spread evenly on the floor in a layer typically 8–15 cm thick.

• Alternatively, it can be blown into roof cavities. Note: No bonding or fasteners required; loose-fill material is easy to remove.

3. Mixes for Thermal and Breathable Plasters Use: Creating breathable, insulating renders.

• Cork is mixed with natural lime or clay on site or in a concrete mixer.

• Applied manually or with machines on interior or exterior walls. Note: Ideal for green building restoration and wall breathability.

4. Cavity and Utility Space Insulation Use: Filling voids to reduce thermal bridging and acoustic leaks. 

• Cork is poured manually or blown into small spaces using proper tools.

• Small fabric pouches filled with cork may also be used. Note: An efficient and simple solution to address thermal weak points.

5. Internal Partition Wall Insulation Use: Improving sound insulation between rooms.

• During construction, cork is poured between double walls (brick or plasterboard). Note: Especially effective against airborne noise.

6. Lightweight Insulating Subfloors Use: Filling lightweight, thermally insulating subfloors, especially in historic buildings. Application:

• Cork is mixed with lime or cement.

• The mix is spread, leveled, and covered with screed or final flooring. Note: Suitable for renovations where weight load needs to be minimized.

7. Natural, Shock-Absorbing Packaging Use: Packing fragile items for protection.

• Granulated cork is freely poured into containers or boxes. Note: 100% natural, reusable, and biodegradable.

It is sold in 0.125 mc bags

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