External Wall Insulation
Cork Spray
External Wall Insulation
What is External Wall Insulation?
External wall insulation is an insulated layer installed to the outside of a property, improving warmth, preventing damp, and boosting energy efficiency.
What is External Wall Insulation?
External wall insulation is an insulated layer installed to the outside of a property, improving warmth, preventing damp, and boosting energy efficiency.
Crack Proof
Prevents shrinkage cracks. It recovers 95% of its original shape when exerting pressure, due to the natural flexible properties of cork. It will bridge over existing cracked render, never to return.
​
Energy Efficient
Our insulation effectively helps to prevents heat loss at just 4mm+ thick, eliminating cold ingress, ensuring consistent thermal comfort across your building.
​
Low conductivity
It acts as a thermal corrector in thermal bridges. low conductivity of both heat and sound or vibrations. It has a good coefficient of thermal conductivity of 0,058 W/mK.
​
Acoustic conditioner
Acoustic absorbent, minimises impact, exterior and air noises. Vibrations in the floors are reduced and new sound sources are eliminated in the receiving room.
​
Vapour permeable (breathable)
Vapour permeable natural material suitable for all solid wall, stone built or new build alike.
Technical Specifications
Thickness: 4mm+​​​
​
Fire Reaction
(UNE-EN 13501:2002):
Bs2d0 and Broof (t1)
​
Thermal Conductivity
(UNE-EN 12667:2002):
0.058-0.064 W/mK
Our cork-based insulating backing coat is applied before plastering, offering a strong, seamless, and ultra-thin internal wall insulation solution.
​
​
Colour Chart
The Eco-Friendly Choice
Explore our wide range of 32 pre-coloured CorkSpray finishes, designed to suit any project and personal taste. Whether you want a subtle, classic look or something bold, our eco-friendly cork coatings deliver both beauty and performance. See the full colour chart to the right and find your perfect match. We also offer, special colours upon request.
Average estimated costs per property type
(Prices will vary on location, substrate condition, and installer)
​Terraced House
£3,200-£9000.00
​
Semi-Detached House
£5,600-£13,500.00
​
Detached House
£8,000-£22,500.00
​
Average façade of a property
£1,600-£4,500
​
(Notes: These are rough averages; actual sizes vary by house age, design, and extensions. Victorian terraces may be smaller, while modern homes or larger detached properties can exceed these ranges. For more precise figures, a site survey or architectural plans are best.)
Performance Overview
Thermal Insulation
Reduces heat transfer and thermal bridging, maintaining indoor temperatures and lowers energy consumption.
Breathable
Protects from moisture infiltration, while allowing walls to breathe as needed.
Ecological
Made from natural, sustainable cork, non-toxic resins and pigments.
Get A Free Quote Today
Invest in a warmer, greener future with our thin external wall insulation. Contact us now to learn more and transform your building with ease! Whether you're upgrading an existing property or planning a new build, our cork insulation coating is the perfect choice for those who prioritise sustainability and efficiency.
