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 09-06-2025:
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
BBA_Certificate_Xtroliner_XO_PR.pdf
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