Unilin Safe-R SR/TB-MF 52.5mm Phenolic Insulated Plasterboard

The 52.5mm Unilin Safe-R SR/TB-MF Phenolic Insulated Plasterboard is a high-performance composite panel combining a 40mm phenolic PIR insulation core with dual foil facings. The foil layer is bonded to 12.5mm tapered edge plasterboard, making it ideal for internal walls, sloped roofs, and ceilings. The SR/TB panel is engineered specifically for mechanical fixing applications.

The 52.5mm Unilin Safe-R SR/TB-MF features composite foil facing on both sides with an integrated vapor control layer that effectively reduces condensation risk. This board delivers exceptional thermal insulation and drylining performance in one step, making it a preferred choice for new builds and refurbishment projects.

Product Details

Brand: Unilin / Xtratherm®

Model: 52.5mm SR/TB-MF

Thickness: 52.5mm

Dimensions: 2,400mm x 1,200mm x 52.50mm

Width: 1200mm

Length: 2400mm

Board Coverage: 2.88m2

Pack Coverage: 20.16 m2

Pack Quantity: 7

Material: Phenolic core ǀ Gypsum plasterboard

R-Value: 1.79m2K/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. Comprehensive three-in-one solution.
2. Integrated vapor control layer.
3. Rapid and straightforward insulation installation.
4. Combines insulation and drylining in one application.
5. Achieves Euroclass B-s1 d0 fire rating.
6. Suitable for new construction, retrofitting, and renovation work.
7. Minimised board thickness.
8. Supports dot and dab fixing method.
9. Offers excellent low thermal conductivity (lambda) of 0.020 W/mK.
10. Compatible with various wall substrates.
11. Standard dimensions of 2400mm x 1200mm (8 x 4).
12. Features high-performance phenolic insulation core.
13. Combines insulation, drylining, and vapor barrier in a single board.
14. Simple to handle and install.

Integral Vapor Control Layer

The composite glass tissue facing on the 52.5mm SR/TB-MF acts as a gas and vapor impermeable barrier, significantly reducing condensation risk. When joints are sealed and taped following standard drylining practices, a complete vapor control layer is created across the surface.

Fire Stops

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

Handling, Cutting, and Storage

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

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 quotation, contact us on +4402038839057, email sales@insulationbee, or use Live Chat - Lowest UK Insulation board Prices.