62.5mm Sopratherm PL4050 PIR Insulated Plasterboard

62.5mm SOPRATHERM PL4000 PIR Insulated Plasterboard (previously Celotex PL4000) combines thermal insulation with a finished plasterboard surface for internal wall insulation and pitched roof applications. The board comprises a 50mm rigid polyisocyanurate (PIR) insulation layer with thermal conductivity of 0.022 W/mK, laminated to 12.5mm tapered edge plasterboard, delivering both thermal performance and a ready-to-decorate finish.

This 62.5mm Soprema PIR insulated plasterboard suits dry lining applications on walls, ceilings and pitched roofs, enhancing thermal efficiency in residential and commercial properties whilst minimising unwanted heat transfer. Combining PIR insulation with plasterboard in one product accelerates installation compared to fitting these components separately.

62.5mm SOPRATHERM PL4050 boards come in overall thicknesses from 37.5mm to 77.5mm, accommodating diverse insulation specifications. The product holds BBA certification for specific uses, including internal wall dry lining and pitched roof ceiling insulation, guaranteeing performance standards and alignment with UK building regulations.

Pack Size & Coverage

1. Model: SOPRATHERM PL4050 - 50 mm - 2400 mm x 1200 mm (Previously Celotex PL4050)
2. Thickness: 62.5mm overall
3. PIR Thickness: 50mm
4. Plasterboard Thickness: 12.5mm
5. Length: 2400mm
6. Width: 1200mm
7. Board Coverage: 2.88m2
8. Pack Size: 1
9. R-Value: 2.30 m2K/W
10. Thermal Conductivity: 0.022 W/mk
11. Compressive Strength: 120 kPa
12. Density: 30Kg/m3
13. Material: PIR core ǀ Tapered edge wallboard
14. Vapour Resistivity: 100 MNs/gm
15. Finishing top: Kraft paper
16. Finishing bottom: Gypsum
17. Edge Profile: Straight edge
18. Applications: Wall linings ǀ Pitched and flat roofs
19. Vapour Control Layer: Yes, build in
20. Fixing method: Adhesive bonding ǀ Mechanical fixing
21. Features: Multi-purpose Insulated Plasterboard

Key Features & Benefits: SOPRATHERM PL4025 Insulated Plasterboard 2400 x 1200 x 62.5mm

1. Board Size: 2400mm x 1200mm insulated plasterboard panel
2. Insulation Thickness: 50mm PIR insulation bonded to 12.5mm plasterboard
3. High-Performance PIR Core: Manufactured from rigid polyisocyanurate (PIR) insulation for excellent thermal efficiency
4. Low Environmental Impact: Produced using blowing agents with low Global Warming Potential (GWP) and zero Ozone Depletion Potential (ODP)
5. All-in-One Insulation Solution: Combines PIR insulation and plasterboard in a single board for easier installation
6. Faster Installation: Reduces installation time compared with fitting insulation and plasterboard separately
7. Versatile Applications: Suitable for internal walls, ceilings and pitched roof insulation
8. Ideal for Refurbishment & New Builds: Perfect for upgrading existing properties or improving thermal performance in new construction
9. Energy Efficient: Helps reduce heat loss and improve energy efficiency, delivering reliable long-term energy savings

Application

• Internal Wall Insulation: Upgrading the thermal performance of solid masonry walls or existing cavity walls from the inside.
• Loft Conversions: Lining the underside of rafters or joists to create insulated living spaces.
• Flat Roofs: Used internally as a warm roof lining or under-deck insulation.
• Refurbishment: A quick way to improve the U-value of older properties during a renovation.

Info

Explore our full range of Sopratherm insulation products. We deliver across the UK Mainland. For guidance on product suitability for your project or to request a bulk discount quotation, contact us on 02039519012 / 02038839057, email sales@insulationbee.co.uk or use Live Chat for competitive UK insulation pricing.