The Complete Guide to Mineral Wool Duct Board in the UK

Mineral wool duct board is an essential component for duct insulation in HVAC applications across the UK. Designed to provide superior thermal and acoustic insulation, mineral wool duct boards offer non-combustible, fire-resistant solutions for rectangular and circular ductwork. As part of sustainable building practices, duct insulation helps reduce energy consumption, prevent condensation, and enhance overall indoor air quality.

What is Mineral Wool Duct Board?

Mineral wool duct board is made from stone wool insulation, derived from natural volcanic rock. These boards are often foil faced on one or both sides, providing enhanced thermal performance and protection against moisture and condensation. Kingspan, Earthwool, and other leading brands offer a wide range of duct insulation boards suitable for HVAC systems and rectangular ductwork.

Benefits of Mineral Wool Duct Board

• Superior Thermal Insulation – Mineral wool duct board provides exceptional thermal performance, ensuring efficient temperature regulation in duct systems.

• Acoustic Properties – The sound insulation properties reduce noise from HVAC systems.

• Non-Combustible – Rated as A1 non-combustible under BS 5422, mineral wool duct boards offer excellent fire resistance.

• Prevents Condensation – The foil facing acts as a vapour barrier, preventing moisture build-up and ensuring the longevity of the duct system.

• Energy Efficiency – By reducing heat loss, mineral wool duct boards improve overall energy efficiency in commercial and industrial buildings.

• Easy Installation – Lightweight and easy to handle, these boards allow for quick and efficient duct insulation.

Applications of Mineral Wool Duct Board

• HVAC Systems – Suitable for insulating rectangular and circular ductwork in heating, ventilation, and air conditioning systems.

• Duct Wrap and Slabs – Duct wrap made from light density stone wool mats provides insulation for curved or flexible ducts.

• Pipework and Ventilation – Ideal for insulating pipework and air distribution systems to prevent heat loss.

• Fire-Resistant Applications – The non-combustible mineral wool core ensures compliance with UK building regulations.

Popular Products

• Kingspan Duct Insulation – High-performance duct boards with aluminium foil facing for optimal thermal and fire protection.

• Earthwool Duct Slabs – Stone wool insulation slabs offering excellent acoustic and thermal properties.

• Ductwrap – Light density stone wool mats with reinforced aluminium foil for circular and flexible duct insulation.

• Mineral Wool Core Boards – Ideal for rectangular ductwork where thermal and fire insulation is required.

Installation and Handling

• Measure and Cut – Duct boards are easy to handle and install. Simply cut the boards to fit the size of the duct.

• Fix and Secure – Use appropriate adhesives or fasteners to secure the boards to the duct surface.

• Seal the Joints – Apply foil tape to seal all joints, ensuring continuous thermal and vapour barriers.

• Inspect and Maintain – Regular inspections help maintain the integrity of the insulation and ensure optimal performance.

Conclusion

Mineral wool duct board is the ideal solution for duct insulation in HVAC applications, providing thermal and acoustic insulation while ensuring fire safety and energy efficiency. With products available in various sizes and specifications, mineral wool duct boards cater to the insulation needs of commercial and industrial buildings.

Order online today to improve your ductwork insulation and create a more efficient and sustainable environment.