Unilin Safe-R SR019/MA 140mm Framing Board

The Unilin Safe-R SR019/MA Framing Board is a premium rigid phenolic insulation board developed for timber frame, steel frame and ventilated cladding systems. Combining an exceptionally low thermal conductivity of 0.019 W/mK with lightweight construction, it helps reduce heat loss, improve overall building efficiency and achieve demanding U-value requirements in residential and commercial developments throughout the UK.

Designed for modern low-energy construction, SR019/MA limits thermal bridging within framed wall systems while providing a durable insulation layer that remains dimensionally stable throughout the life of the building.

Why Choose 140mm Unilin Safe-R SR019/MA?

Whether you're constructing a new build or upgrading an existing property, this high-performance framing board delivers excellent insulation without adding unnecessary weight to the structure. The foil-faced phenolic core offers reliable long-term thermal performance while helping reduce condensation risks when correctly specified.

Suitable for

1. Timber frame wall systems
2. Steel frame construction
3. Ventilated rainscreen cladding
4. Residential developments
5. Commercial buildings
6. Refurbishment projects
7. Buildings up to 11 metres in height (subject to system design and regulations)

Specification

1. Thickness: 140mm
2. Board Size: 1200mm × 2400mm
3. Coverage Per Board: 2.88m²
4. Boards Per Pack: 2
5. Coverage Per Pack: 85.76m²
6. Edge Profile: Square Edge
7. Insulation Type: Rigid Phenolic Insulation
8. Thermal Conductivity (λ): 0.019 W/mK
9. R-Value: 7.35 m²K/W
10. Density: 32kg/m³
11. Compressive Strength: >120kPa
12. Fire Classification Euroclass: C-s1,d0
13. Facing: Composite Foil (Both Sides)

Key Features & Benefits

• Outstanding thermal conductivity of just 0.019 W/mK
• Helps minimise thermal bridging in framed wall systems
• Improves overall building energy efficiency
• Suitable for both timber and steel frame construction
• Foil facings enhance thermal performance within residual cavities
• Lightweight boards for easier handling and installation
• Resistant to rot, moisture and dimensional movement
• Designed for long service life
• Suitable for domestic and commercial applications
• Supports compliance with UK Building Regulations

Thermal Performance

With one of the lowest lambda values available for framing insulation, 140mm SR019/MA allows excellent thermal performance using relatively thin insulation. This makes it an ideal choice where wall thickness must be minimised without compromising energy efficiency.

When incorporated into correctly designed wall systems, the board helps achieve improved U-values while reducing unwanted heat transfer through structural framing members.

Typical Applications

Timber Frame Walls

Installed within or alongside timber framing, SR019/MA reduces cold bridging through structural timber and creates a more thermally efficient wall build-up.

Steel Frame Systems

In steel frame construction, the board is commonly fitted externally to create a continuous insulation layer that limits heat transfer through steel components and reduces the likelihood of interstitial condensation.

Ventilated Cladding

The rigid phenolic board performs exceptionally well behind ventilated façade systems, delivering continuous insulation while maintaining excellent thermal performance.

Alternative to Kingspan Kooltherm K112 Framing Board

When specifying a substitute for Kingspan Kooltherm K112 Framing Insulation Board, the 140mm Unilin Safe-R SR019/MA Framing Board is a strong-performing phenolic insulation option widely used in UK timber frame, steel frame and rainscreen cladding systems.

Designed to deliver high levels of thermal efficiency, SR019/MA achieves a low thermal conductivity of 0.019 W/mK, helping reduce heat loss through structural framing and improve overall wall performance. Its rigid construction allows it to be used as part of continuous insulation layers or positioned within frame systems where space and thermal bridging need to be carefully controlled.