Menu
Menu
Your Cart

50mm Unilin XtroLiner XO/PR Pitched Roof PIR Insulation Board - 1200mm x 2400mm - Pack of 6

50mm Unilin XtroLiner XO/PR Pitched Roof PIR Insulation Board - 1200mm x 2400mm - Pack of 6
Our ratings on 17-09-2026:
Google My Business Reviews
4.8 out of 5
To GET BEST PRICE for this product only fill below:
Need a quote for more products? and continue browsing to find other materials needed.

50mm Unilin XtroLiner XO/PR Pitched Roof PIR Insulation Board - 1200mm x 2400mm - Pack of 6

Length: 2400mm
Width: 1200mm
Thickness: 50mm
Pack Quantity: 6
Board Coverage: 2.88m2
Pack coverage: 17.28m2
Thermal Conductivity: 0.021W/mK
R-Value: 2.35m2K/W
Compressive Strength: 150kPa

50mm Unilin XtroLiner XO/PR board has a core of modified polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings. Unilin XtroLiner XO/PR board offers excellent insulation performance with excellent thermal conductivity. Unilin XtroLiner XO/PR is CFC & HCFC free and is manufactured under the highest standards of ISO 9001 and 14001 Quality and Environmental Management Systems. 

Note: This product was formerly known as 50mm Xtratherm XtroLiner XO/PR Pitched Roof PIR Insulation Board

CHARACTERISTICS

  • High Thermal Performance Rigid Insulation,
  • Easy to Install,
  • Non-deleterious material,
  • Suitable for new build and refurbishment,
  • Manufactured with zero ODP blowing agent,
  • Reduces Thermal Bridging, 
  • Reaction to fire: Euroclass C s2 d0,
  • Closed cell structure – moisture resistant

APPLICATION

  • Pitched roof
  • Ventilated roof
  • Warm roof
  • Above and between rafters
  • Under rafters, above ceilings
    

INSTALLATION

Ventilated Roofs

  • Allow for ventilation gaps normally 50mm. (May be reduced depending on breather membrane certification).
  • Cut XtroLiner boards to fit tightly between rafters flush with rafter bottom. An additional 2nd layer should be added to the underside of the rafter.
  • Run second layer transverse to the first.
  • Temporarily fix with nails.
  • Provide vapour control layer (Aluminium tape joints).
  • Finish with 12.5mm plasterboard fixed with drylining screws. Screw fix every 150mm, 12mm from edge of boards.
  • All board edges should be supported.

Warm roofs

  • Ensure cavity wall insulation has continued to roof height to engage with roof insulation.  
  • Fix a timber stop rail to end of rafter at eaves.
  • Lay Unilin XtrolinerXO/PR insulation stagger jointed over rafters ensuring joints are supported by rafters.
  • Ensure boards are tightly butted fill any gaps with expanding foam. A vapour permeable underlay should be fitted; refer to manufacturers Agrèment certification.
  • Providing an unvented void under the membrane can improve the thermal performance.
  • Fix counter batten with approved fixings.
  • Ventilation may have to be provided  subject to certification.
  • A second layer of insulation may be added between the rafters.
  • Provide a vapour control layer to the underside of the construction.
  • Current Building Regulations/Standards should be considered with regard to  the requirements for and/or provision  of fire stops.
CERTIFICATION

      

Brand: Unilin (prev. Xtratherm) Model: 2400x1200mm - 11.52m2
Delivery Time: 2 - 3 working days
90mm Unilin Safe-R SR/UF Phenolic foam is a superior performance rigid underfloor insulation with enhanced fire performance, consisting of an Euroclass D s1 d0 phenolic foam core with negligible smoke obscuration. Unilin Safe-R SR/UF is faced with low emissivity aluminium facings both sides, and has..
Brand: Unilin (prev. Xtratherm) Model: 1200x450mm - 2.16m2
Delivery Time: 1-3 working days
125mm Unilin ECO360/CT CavityTherm Full Fill Cavity Wall  board has a core of modified polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings offering excellent insulation performance with thermal conductivity. Unilin ECO360 CT board reduces the junctions prone to ..
Brand: Unilin (prev. Xtratherm) Model: 2400mm x 1200mm - 2.88m2
Delivery Time: 7 - 10 days
86mm Unilin Safe-R 019/STP Phenolic Soffit Insulation Board is a high‑performance phenolic soffit insulation board designed for structural ceiling applications where both thermal efficiency and fire performance are critical. It combines a rigid phenolic insulation core with low‑emissivity foil ..
Brand: Unilin (prev. Xtratherm) Model: 2400mm x 1200mm - 8.64m2
Delivery Time: 7 - 10 days
110mm Unilin Safe-R 019/MA (Roofs) is a high‑performance phenolic insulation board designed specifically for warm roof applications where exceptional thermal efficiency is required with minimal added build‑up. Its advanced phenolic core delivers one of the lowest thermal conductivities available in ..
Brand: Unilin (prev. Xtratherm) Model: 2400x1200mm - 20.16m2
Delivery Time: 2 - 3 working days
40mm Unilin Safe-R SR/UF Phenolic foam is a superior performance rigid underfloor insulation with enhanced fire performance, consisting of an Euroclass D s1 d0 phenolic foam core with negligible smoke obscuration. Unilin Safe-R SR/UF is faced with low emissivity aluminium facings both sides, and has..
Brand: Unilin (prev. Xtratherm) Model: 1250x600mm - 3.75m2
Delivery Time: 2 - 3 working days
80mm Unilin XPS 700 is an extremely durable heavy duty thermal insulation board made of extruded polystyrene offering exceptional thermal performance and versatility. It is a lightweight board that is able to withstand extreme loads. It has a rebated edge.CHARACTERISTICSExtremely strong,Compressive ..
This product is listed in the following categories and systems (click to show).