Unilin Safe-R SR/TB-MF 87.5mm Phenolic Insulated Plasterboard

The 87.5mm Unilin Safe-R SR/TB-MF Phenolic Insulated Plasterboard is a high-performance composite panel combining a 75mm phenolic PIR insulation core with a dual-sided composite foil facing. The foil is bonded to 12.5mm tapered edge plasterboard, making it ideal for internal walls, sloped roofs, and ceiling applications. The SR/TB panel is engineered for mechanical fixing methods and features an integrated vapor control layer on both sides to reduce condensation risk. This product delivers comprehensive thermal insulation and drylining in one solution, making it a preferred choice for new builds and renovation projects alike.

Product Details

Brand: Unilin

Model: 87.5mm SR/TB-MF

Thickness: 87.5mm

Dimensions: 2,400mm x 1,200mm x 87.50mm

Width: 1200mm

Length: 2400mm

Board Coverage: 2.88m2

Pack Coverage: 11.52 m2

Pack Quantity: 4

Material: Phenolic core ǀ Gypsum plasterboard

R-Value: 3.75 m2K/W

Thermal Conductivity: 0.020 – 0.021 – (0.023 Below 40mm) (W/mK) Phenolic only

Inner facing: Foil facing

Outer facing: Foil facing

Shipping method: Articulated Vehicle ǀ Courier

Applications: Internal Walls ǀ Roofs

BBA Certified: Yes (no. 10/4803)

Vapour Control Layer: Yes, build in

Reaction to fire: Euroclass B s1 d0

Fixing method: Adhesive bonding

Decoration: Skim plaster

ETA Notification: Yes

Features: Integral vapour barrier thermal-liner

Main Highlights

1. Three-in-one integrated solution for insulation, drylining, and vapor control.
2. Built-in vapor control layer across both surfaces.
3. Rapid installation and application process.
4. Combines thermal performance with drylining in a single board.
5. Achieves Euroclass B-s1 d0 fire rating.
6. Suitable for new construction, retrofitting, and renovation work.
7. Minimised board thickness for space efficiency.
8. Compatible with dot and dab fixing methods.
9. Excellent thermal performance with 0.020 W/mK lambda value.
10. Works with various wall substrates and compositions.
11. Standard 2400mm x 1200mm board dimensions (8 x 4 feet).
12. Features high-performance phenolic insulation core technology.
13. Single board provides insulation, drylining, and vapor barrier functions.
14. Simple to handle and install on site.

Integral Vapor Control Layer

The composite glass tissue facing on the 87.5mm SR/TB-MF acts as a gas and vapor impermeable barrier, significantly reducing condensation risks. When joints are properly sealed and taped following standard drylining practices, a continuous vapor control layer is created across the entire installation.

Fire Stops

When drylining walls, fire stops must be installed at the top and bottom of each board, as well as around all openings including doors and windows. These consist of continuous lines of adhesive that prevent fire from spreading behind the insulation layer. The unbroken adhesive lines also help eliminate thermal bridging, improving the overall U-Value performance of the wall assembly.

Handling, Cutting, and Storage

PIR insulation boards must be stored on a clean, level surface above ground and protected from weather exposure. Polythene wrapping alone does not provide adequate outdoor protection. Take care to protect the insulation during storage and throughout the building process. Always wear appropriate personal protective equipment (PPE) when handling insulation materials.

Info

Explore our full Unilin range and filter by thickness or coverage using the left-hand menu. For advice on product suitability for your project or to request a quantity discount quote, contact us on +4402038839057, email sales@insulationbee, or use Live Chat for competitive insulation board pricing across the UK.