Promat PROMAFOUR 15mm Calcium Silicate Board

The 15mm PROMAFOUR Board is a specialist fireplace insulation board manufactured from high-performance cement-bonded calcium silicate. Designed as part of the PROMAFOUR Fireplace Insulation System, this advanced heat-resistant board provides exceptional fire protection and thermal performance for fireplace construction, wood-burning stoves, inset fires and other high-temperature heating applications.

The 15mm Promat board is specifically designed for creating false chimney breasts, fireplace chambers, stove enclosures and chimney breast linings. It can be installed against masonry, concrete or timber-frame structures to provide a durable, fire-resistant barrier that helps protect surrounding materials from excessive heat exposure.

Engineered to withstand continuous temperatures of up to 1,000°C (1,832°F), PROMAFOUR boards offer excellent dimensional stability and reliable performance in demanding fireplace environments. Their rigid, self-supporting construction makes them easy to install while maintaining high levels of thermal insulation and fire safety.

Manufactured from asbestos-free calcium silicate, the 15mm PROMAFOUR board is lightweight, strong and easy to cut using standard tools. It provides a practical solution for installers looking to create safe, long-lasting fireplace systems without the need for traditional wet trades.

Specification

1. Brand: Promat
2. Model: 15mm PROMAFOUR
3. Product Type: Fireplace insulation board / Calcium silicate board
4. Thickness: 15mm
5. Weight: 48.20kg
6. Weight/m2: 15.4kg
7. Dimensions: 2,400mm x 1,200mm x 15mm
8. Colour: Light Grey
9. Density: 970kg/m3
10. Length: 2500mm
11. Width: 1200mm
12. Profile: Square edge
13. Temperature resistance: Up to 1000°C
14. Thermal Conductivity: 0.180W/mK
15. Fire Classification: A1 (Non-combustible)
16. Building Regulations: Suitable for Part J fireplace installations
17. Coverage: 2.88m2
18. Fire performance: Up to 240 minutes
19. Finish: Smooth surface
20. Applications: Fireplaces ǀ Wood burning stoves ǀ Heating appliances
21. Decoration: Suitable for paints ǀ Wallpapers ǀ Tiles
22. ETA Notification: Yes
23. Features: High temperature resistance up to 1000°C

The 15mm PROMAFOUR board is also widely used as a protective heat shield behind wood-burning stoves, multi-fuel stoves and other solid fuel heating appliances. Its excellent thermal properties help minimise heat transfer to combustible surfaces, improving installation safety and supporting recommended fireplace construction practices.

The complete PROMAFOUR Fireplace System is available through specialist fireplace suppliers, stove retailers, builders' merchants and authorised distributors. It provides a reliable, high-performance solution for constructing modern fireplace surrounds, chimney breast systems and high-temperature insulation applications.

Applications of PROMAFOUR Fireplace Board

1. False Chimney Breast Construction
2. Fireplace Chambers
3. Fireplace Surrounds
4. Wood Burning Stove Enclosures
5. Multi-Fuel Stove Installations
6. Chimney Breast Lining
7. Heat Shields Behind Heating Appliances
8. Inset Fireplace Systems
9. Cassette Fireplace Systems
10. Stove Surrounds
11. Fireplace Linings
12. Solid Fuel Appliance Protection
13. Timber Frame Chimney Breast Protection
14. Masonry Chimney Breast Insulation
15. High Temperature Insulation Systems
16. Fireplace Construction Projects
17. Decorative Fireplace Finishes
18. Residential Fireplace Installations
19. Commercial Fireplace Installations

Benefits of PROMAFOUR Fireplace Insulation Board

The 15mm Promat PROMAFOUR Fireplace Insulation Board has been developed to provide a safe, durable and efficient solution for fireplace construction and high-temperature insulation applications. Combining excellent thermal performance with ease of installation, it is suitable for professional installers, stove specialists and homeowners creating fireplace surrounds, stove enclosures and heat protection systems.

1. Designed to withstand continuous temperatures up to 1,000°C (1,832°F), providing reliable protection in high-temperature fireplace environments.
2. Helps support safe fireplace installations that meet the requirements of UK Building Regulations Part J for solid fuel and heating appliance applications.
3. HETAS Approved, offering additional reassurance for use in approved stove and fireplace installations.
4. Lightweight yet strong construction makes the board easy to handle, cut and install using commonly available tools.
5. Provides excellent dimensional stability, reducing the effects of thermal expansion and contraction during repeated heating and cooling cycles.
6. Smooth surface finish allows for direct decoration with suitable paints, tiles and finishes, helping achieve a professional appearance without additional plastering.
7. Supports a cleaner and quicker installation process by allowing dry construction methods with minimal need for wet trades.
8. High thermal storage properties help retain and distribute heat evenly, contributing to improved comfort and efficient heat management within the room.
9. Manufactured from asbestos-free cement-bonded calcium silicate, providing a robust, non-combustible board solution for fireplace insulation and heat shielding.
10. Ideal for creating false chimney breasts, fireplace chambers, stove surrounds, chimney breast linings and protective heat shields behind wood-burning stoves, multi-fuel stoves and other heating appliances.