High performance rigid Polyisocyanurate (PIR) general application insulation board
Provides the thickest PIR insulation available from stock within the market - 200mm.
Suitable for use in a number of applications including roof, wall and floor systems.
Helps meet the requirements of Approved Document L and Section 6.
Includes low emissivity foil facings giving improved thermal insulation performance within cavity air spaces.
Can be used to provide reliable long-term energy savings for buildings.
Thicknesses and Availability:
Available in most popular thicknesses at most depots; short lead-times may apply if we need to get stock in before delivering to site.
This XR4000 Range includes the following available product thicknesses: 110mm, 120mm, 130mm, 140mm, 150mm, 165mm and 200mm.
Some thicknesses may only be sold in pack quantities, however, we will happily check to see if individual depots will split packs, depending on you requirements.
General information about Celotex XR4000
General application insulating board
Celotex's high performance polyisocyanurate (PIR) foam board, XR4000, is suitable for use in pitched and flat roofs, solid masonary walls, timber and steel framed systems, and floors.
Celotex XR4000 is manufactured from rigid polyisocyanurate (PIR) using a blowing agent that has zero ozone depletion potential (zero ODP) and low global warming potential (GWP)
Faced on both sides with a low emissivity aluminium foil, autohesively bonded to the insulation core during manufacture
|Thermal Conductivity||0.022 W/m·K|
|Compressive Strength||140 kPa at 10% compression||BS EN 826:2013|
|Vapour Resistance||> 300 MNs/gm|
Buy Celotex XR4000
Reasonable stock levels are generally held at most of our depots. In some geographic locations, depots may stock alternates, however, we will contact you to discuss before proceeding with the order.
Where products need to be brought in from Celotex, please allow approx. 1 week for delivery.
Celotex reserves the right to change stocked products - while we will do all we can to keep on top of changes, availability and lead times my vary.
Please observe the 'Star Rating' indicators to assess availability.
Generally 1 or 2 days for delivery
Generally 1 to 5 days for delivery
Generally 5 to 10 days for delivery
Generally 5 to 15 days for delivery
Please call to check availability and approximate lead times
Product availability depends upon stock levels at closest depot and delivery logistics to geographic locations
Product Performance and Guides
Product Performance, Manufacturer Certification, Downloads, and Installation Guides
While we have provided Thermal Resistance values for all thicknesses on the Celotex XR4000 datasheet, some thicknesses may not be readily available.
Items highlighted in green are generally held in stock by Celotex.
|Celotex XR4110 110mm||110mm||5.00 m²K/W||4.54 kg/m²|
|Celotex XR4120 120mm||120mm||5.45 m²K/W||4.93 kg/m²|
|Celotex XR4130 130mm||130mm||5.90 m²K/W||5.32 kg/m²|
|Celotex XR4140 140mm||140mm||6.35 m²K/W||5.71 kg/m²|
|Celotex XR4150 150mm||150mm||6.80 m²K/W||6.10 kg/m²|
|Celotex XR4165 165mm||165mm||7.50 m²K/W||6.69 kg/m²|
|Celotex XR42000 200mm||200mm||9.05 m²K/W||8.06 kg/m²|
Please visit the Celotex website for product certificates.
- Balconies & Terraces Application
- Basements Application
- Beam & Block Floors Application
- Between & Over Rafters Application
- Between & Under Joists Application
- Between & Under Rafters Application
- Between Rafters Application
- Concrete Slab Floor Application
- Garage Conversion
- Loft Attic Wall Application
- Loft Insulation
- Pitched Roof Sarking Application
- Timber Frame & Domer Cheek Application
- Solid Masonary Wall External Application
- Steel Framed Walls Application
- Suspended Timber Floor Application
- Upgrade Internal Solid Wall Application