25mm Unilin XtroLiner XO/PR Pitched Roof PIR Insulation Board - 1200mm x 2400mm - Pack of 12
 
                                               
                                               
                       
                      25mm Unilin XtroLiner XO/PR Pitched Roof PIR Insulation Board - 1200mm x 2400mm - Pack of 12
                          
          
          
          
          
          
          
                      - Product Code: A1-5011
- Delivery Time: 1-3 working days
- Brand: Unilin (prev. Xtratherm)
- Model and Size: 1200x2400mm - 34.56m2
Our ratings on 31-10-2025:
             
              4.8 out of 5
            25mm Unilin XtroLiner XO/PR Pitched Roof PIR Insulation Board - 1200mm x 2400mm - Pack of 12
Length: 2400mm
Width: 1200mm
Thickness: 25mm
Pack Quantity: 12
Board Coverage: 2.88m2
Pack coverage: 34.56m2
Thermal Conductivity: 0.021W/mK
R-Value: 1.15m2K/W
Compressive Strength: 150kPa
25mm 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 25mm 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 and Size: 1250x600mm - 3.0m2
                          
          
              Delivery Time: 2 - 3 working days                          
                  
                  
                  
                100mm Unilin XPS 300 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..
        
        
        
                  
                              Brand: Unilin (prev. Xtratherm)
                                            Model and Size: 1250x600mm - 7.5m2
                          
          
              Delivery Time: 2 - 3 working days                          
                  
                  
                  
                40mm Unilin XPS 300 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.Note: Availability subject to quantity and l..
        
        
        
                  
                              Brand: Unilin (prev. Xtratherm)
                                            Model and Size: 1200mm x 2400mm - 2.88m2
                          
          
              Delivery Time: 1-3 working days                          
                  
                  
                  
                87.5mm Unilin Thin-R Thermal Liner XT/TL-MF is a composite insulated panel of 75mm Unilin PIR core with foil faces bonded to 12.5mm tapered edge plasterboard for mechanically fixing to internal walls. Unilin XT/TL-MF is designed to provide high levels of thermal insulation and dry lining in one oper..
        
                  
                              Guide Price: £53.08
                          
                          £63.70 inc VAT
                                    
                              Brand: Unilin (prev. Xtratherm)
                                            Model and Size: 1200mm x 1200mm - 4.32m2
                          
          
              Delivery Time: 3 - 5 days                          
                  
                  
                  
                120mm Unilin FR-BGM is a a BBA certified high performance PIR insulation board that is faced with a fleece finished bitumen/glass facers and is suitable for use below partially bonded bitumen based built up roofing systems. Unilin FR-BGM is suitable to apply torch on felt directly on the insulation...
        
                  
                              Guide Price: £119.84
                          
                          £143.81 inc VAT
                                    
                              Brand: Unilin (prev. Xtratherm)
                                            Model and Size: 1200mm x 2400mm - 2.88m2
                          
          
              Delivery Time: 1-3 working days                          
                  
                  
                  
                62.5mm Unilin Thin-R Thermal Liner XT/TL-MF is a composite insulated panel of 25mm Unilin PIR core with foil faces bonded to 12.5mm tapered edge plasterboard for mechanically fixing to internal walls. Unilin XT/TL-MF is designed to provide high levels of thermal insulation and dry lining in one oper..
        
                  
                              Guide Price: £44.42
                          
                          £53.30 inc VAT
                                    
                              Brand: Unilin (prev. Xtratherm)
                                            Model and Size: 1200mm x 2400mm - 2.88m2
                          
          
              Delivery Time: 1-3 working days                          
                  
                  
                  
                37.5mm Unilin XT/TL Thermal Liner Dot and Dab Insulated Plasterboard is a high performance rigid insulation board made from 25mm Unilin PIR core faced with composite kraft paper bonded to 12.5mm plasterboard, specially designed for internal walls dry lining and insulation, due to its closed cell com..
        
                  
                              Guide Price: £36.90
                          
                          £44.28 inc VAT
                                     
             
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
        
        
                   
        
        
                   
        
        
                   
        
        
                   
        
        
                   
        
        
                   
        
        
                   
        
        
                   
        
        
                   
        
        
                   BBA_Certificate_Xtroliner_XO_PR.pdf
 BBA_Certificate_Xtroliner_XO_PR.pdf 
              
              
                           
              
              
                           
              
                                                 
                              
                           
              
              
                           
              
                                                