Another brick in the wall

items -

Brands: Celotex XR4000 Range of High Performance Insulation Boards

Cart =

Order before 10am for next working day delivery ... subject to product availability in your locality, and upon availability of vehicle delivery slots


Celotex XR4000 Range is a popular brand sold by just-insulation.comJust Insulation Left Navigation Menu

Just Insulation Left Navigation - Bottom

Celotex XR4000 High Performance Rigid Boards

Celotex XR4000 Range includes XR4110, XR4120, XR4130, XR4140, XR4150, XR4165, XR4200

Celotex XR4000 rigid insulation boards for general purpose applications demanding high insulation valuesManufactured using the latest state-of-the-art restrained rise production line and features the unique Celotex jointless laydown technology.
This technology enables Celotex to offer boards with no visible seams in the foam laydown. This product is targeted at cut-to-fit applications for installation between rafters or joists and will enable users to achieve lower U Values with a single layer of insulation than has been previously possible.

These products have similar characteristics to our Tuff-R range and are available in the following thickness’s 110mm, 120mm, 130mm, and 140mm 150mm and 200mm, with a standard board size of 1200 x 2400 mm.


Click on item(s) below for drop-down Price List

 

 

Rarely requested product sourced directly from manufacturer. Celotex XR4110 110mm, 1.2x2.4m = 2.88m² - ranging from £13.11 to £13.72 per m²

1 plus boards @ £13.72 per m² = £39.51 (£47.42 Inc-VAT)
8 plus boards @ £13.60 per m² = £39.16 (£47.00 Inc-VAT)
16 plus boards @ £13.48 per m² = £38.81 (£46.58 Inc-VAT)
24 plus boards @ £13.35 per m² = £38.46 (£46.16 Inc-VAT)
32 plus boards @ £13.23 per m² = £38.11 (£45.74 Inc-VAT)
41 plus boards @ £13.11 per m² = £37.76 (£45.32 Inc-VAT)

Rarely requested product sourced directly from manufacturer. Celotex XR4120 120mm, 1.2x2.4m = 2.88m² - ranging from £14.17 to £14.83 per m²

1 plus boards @ £14.83 per m² = £42.71 (£51.26 Inc-VAT)
8 plus boards @ £14.70 per m² = £42.33 (£50.80 Inc-VAT)
15 plus boards @ £14.57 per m² = £41.95 (£50.34 Inc-VAT)
22 plus boards @ £14.43 per m² = £41.57 (£49.89 Inc-VAT)
30 plus boards @ £14.31 per m² = £41.20 (£49.44 Inc-VAT)
38 plus boards @ £14.17 per m² = £40.82 (£48.99 Inc-VAT)

Rarely requested product sourced directly from manufacturer. Celotex XR4130 130mm, 1.2x2.4m = 2.88m² - ranging from £16.74 to £17.51 per m²

1 plus boards @ £17.51 per m² = £50.44 (£60.53 Inc-VAT)
7 plus boards @ £17.36 per m² = £49.99 (£59.99 Inc-VAT)
13 plus boards @ £17.20 per m² = £49.54 (£59.45 Inc-VAT)
20 plus boards @ £17.05 per m² = £49.10 (£58.92 Inc-VAT)
27 plus boards @ £16.89 per m² = £48.65 (£58.38 Inc-VAT)
34 plus boards @ £16.74 per m² = £48.21 (£57.86 Inc-VAT)

Rarely requested product sourced directly from manufacturer. Celotex XR4140 140mm, 1.2x2.4m = 2.88m² - ranging from £17.06 to £17.85 per m²

1 plus boards @ £17.85 per m² = £51.41 (£61.70 Inc-VAT)
6 plus boards @ £17.69 per m² = £50.95 (£61.14 Inc-VAT)
13 plus boards @ £17.53 per m² = £50.50 (£60.60 Inc-VAT)
19 plus boards @ £17.38 per m² = £50.04 (£60.05 Inc-VAT)
25 plus boards @ £17.22 per m² = £49.59 (£59.51 Inc-VAT)
31 plus boards @ £17.06 per m² = £49.13 (£58.96 Inc-VAT)

Less popular product commonly available at selected depots. Celotex XR4150 150mm, 1.2x2.4m = 2.88m² - ranging from £17.92 to £18.75 per m²

1 plus boards @ £18.75 per m² = £54.00 (£64.80 Inc-VAT)
6 plus boards @ £18.58 per m² = £53.52 (£64.23 Inc-VAT)
12 plus boards @ £18.42 per m² = £53.04 (£63.65 Inc-VAT)
18 plus boards @ £18.25 per m² = £52.56 (£63.08 Inc-VAT)
24 plus boards @ £18.09 per m² = £52.09 (£62.51 Inc-VAT)
30 plus boards @ £17.92 per m² = £51.61 (£61.94 Inc-VAT)

Rarely requested product sourced directly from manufacturer. Celotex XR4165 165mm, 1.2x2.4m = 2.88m² - ranging from £21.77 to £22.78 per m²

1 plus boards @ £22.78 per m² = £65.60 (£78.72 Inc-VAT)
5 plus boards @ £22.58 per m² = £65.02 (£78.03 Inc-VAT)
10 plus boards @ £22.38 per m² = £64.44 (£77.33 Inc-VAT)
16 plus boards @ £22.17 per m² = £63.86 (£76.64 Inc-VAT)
21 plus boards @ £21.97 per m² = £63.28 (£75.94 Inc-VAT)
26 plus boards @ £21.77 per m² = £62.70 (£75.24 Inc-VAT)

Rarely requested product sourced directly from manufacturer. Celotex XR4200 200mm, 6 x 1.2x2.4m = 17.28m² - ranging from £25.14 to £26.30 per m²

1 x pack @ £26.30 per m² / £75.75 per board = £454.47 (£545.37 Inc-VAT)
2 x packs @ £26.07 per m² / £75.08 per board = £450.45 (£540.54 Inc-VAT)
3 x packs @ £25.83 per m² / £74.41 per board = £446.42 (£535.71 Inc-VAT)
4 x packs @ £25.60 per m² / £73.74 per board = £442.40 (£530.88 Inc-VAT)
5 x packs @ £25.37 per m² / £73.07 per board = £438.38 (£526.06 Inc-VAT)
6 plus packs @ £25.14 per m² / £72.40 per board = £434.36 (£521.24 Inc-VAT)


(See Product Availability Legend at the foot of this page)


Celotex Board sizes XR4110, XR4120, X4130, XR4140, XR4150, XR4165, XR4200Celotex XR4000 Range - Technical Specifications

Description

Celotex Xtra-R is a premium performance multi-purpose rigid polyisocyanurate foam (PIR) thermal insulation board with reflective foil facings.

It provides multi-purpose cavity wall insulation boards that are uniquely reinforced with glass-fibre and features strong reaction-to-fire performance when measured in accordance with new European Standards.

Like the Celotex GA400 range, XR4000 is installed in conjunction with an appropriate lining panel, for example standard gypsum plasterboard to BS 1230-1 : 1985.


Celotex XR4000 Range - Technical Data

Board Sizes and Values

Available in a standard board size of 1200 x 2400mm with the following specifications ...

Product Code

Board dimensions

Thickness (mm)

λ Value (w/mK)

R-value (m²K/W)

U Value (W/m²K)

Weight (kg/m²)

Board weight (kg)

Celotex XR4110

1.2 x 2.4 = 2.88m²

110

0.022

5.00

0.20

3.58

10.31

Celotex XR4120

1.2 x 2.4 = 2.88m²

120

0.022

5.45

0.18

3.88

11.17

Celotex XR4130

1.2 x 2.4 = 2.88m²

130

0.022

5.90

0.17

4.19

12.07

Celotex XR4140

1.2 x 2.4 = 2.88m²

140

0.022

6.35

0.16

4.49

12.93

Celotex XR4150

1.2 x 2.4 = 2.88m²

150

0.022

6.80

0.15

4.79

13.80

Celotex XR4165

1.2 x 2.4 = 2.88m²

165

0.022

7.50

0.13

5.43

15.64

Celotex XR4200

1.2 x 2.4 = 2.88m²

200

0.022

9.05

0.11

6.53

18.81

Thermal conductivity / Lambda value (W/mK) = 0.022 | Compressive strength (kPa) = ≥ 120 | Water vapour resistance (MNs/g) = > 150 | Please Note: R-Value = Thermal Resistance; U Value = Thermal Transmittance Co-efficient; Compressive strength = kiloPascals; Vapour resistance = MegaNewton seconds per gram.


Certification

For the purpose of U value calculations to determine if the requirements of the Building (or other statutory) Regulations are met, the thermal conductivity (90/90 lambda value) of the boards may be taken as declared within the Celotex BBA Certificate No. 95/3197.
The requirement for limiting the heat loss through the building fabric will be satisfied if the
U values of the building elements, including thermal bridging, do not exceed the maximum values in the relevant Elemental Method given in the national Building Regulations ...
England and Wales - Approved Documents L1 and L2, Table 1
Scotland - Technical Standards J3.2, Tables 1, and J8.3
Northern Ireland - Technical Booklet F, Tables 1.2 and 1.4


Celotex XR4000 range of boards should be used ...

This thicker version can be used in any rafter or joist application where there is the need to achieve improved U Values from those available from a thinner board.

Celotex XR4120 - between rafters Insulation between rafters:

The void created by a pitched roof can be made habitable by insulating along the plane of the roof pitch with Celotex rigid PIR insulation boards. This creates a warm, potentially habitable roof space in which water pipes and tanks no longer need to be insulated.

Benefits

Use Celotex Extra-R XR4000 high performance thermal insulation in pitched roofs either between and under rafter or between the rafter applications to minimise insulation thickness and give the following benefits ...

Offers the thinnest solution available
Provides reliable long term energy savings for buildings
Low emissivity foil facers give improved thermal insulation with cavity air spaces
Provides a vapour control layer when board joints are taped
Reduces thermal bridging through studs and rails
Can be nailed direct to stud framing
Dry-line directly over insulation
Provides cavity for services Installation guidelines

If BS 747: 2000 slater's felt is being used, a minimum 50 mm ventilated air space must be provided between the felt and the cold side of the insulation in order to minimise the risk of condensation formation. This construction is known as a ventilated construction.

With some breathable membranes, the cold side of the insulation may be placed in direct contact with the membrane (check with membrane supplier prior to specification). However, the outer side of the membrane must be adjacent to an air space to allow moisture vapour to escape to the outside of the building. This is known as an unventilated construction.

Celotex XR4150 - Insulation for timber frame wall lining:

Celotex Insulation for timber frame wall lining Celotex utilises the low lambda values of Celotex Tuff R GA4000 and Extra-R XR4000 between the studs, followed by an internal lining of Celotex T-Break TB4000 over the studs, providing for a thin build-up with the excellent thermal insulation.

Benefits:

Offers the thinnest solution available
Provides reliable long term energy savings for buildings
Low emissivity foil facers give improved thermal insulation with cavity air spaces
Provides a vapour control layer when board joints are taped
Reduces thermal bridging through studs and rails
Can be nailed direct to stud framing
Dry-line directly over insulation
Provides cavity for services Installation guidelines

Celotex XR4165 - Suspended timber floor insulation

Fixing floppy quilt insulation between floor joists can be difficult. Insulating a suspended timber floor is made easy using Celotex Insulation cut to fit between joists.

The specification of insulation for ground floors is more complex than that for walls or roofs. This is because the mechanisms for heat flow are affected by the ratio of surface area to perimeter.

With a suspended timber floor, there is little choice but to install the insulation between the joists, but the thermal bridges created by the joists have to be considered.

Continuity of the insulation must be ensured by packing the spaces between the external walls and the joists with insulation. The void below an insulated suspended timber floor must be well ventilated. The insulation must be cut to fit tightly between the joists to prevent heat loss.


Celotex XR4200 - Installation

Make sure all studs and rails are flush, with no projections, and that services are correctly installed.

Cut Celotex Extra-R XR4000 to fit tightly between all studs and rails.

For optimum thermal performance, the unprinted foil surface should face the air cavity.

Insert insulation into framing and push back to plywood sheathing.

Fit services in to cavity if required.

Measure the wall height from floor level to underside of ceiling joists and cut board length to suit, using a trimming knife.

Ensure that the wall insulation is continuous with the floor perimeter insulation.

Cut boards for infill panels, using off-cuts where possible, making sure there are no gaps at wall abutments.

Tightly butt edges of boards together, making sure there are no gaps.

Temporarily secure the boards with clout nails at 600 mm centres. Mark stud lines on board surface as fixing guides for dry lining.

Always fix back to solid timber, both at stud lines and at top and bottom rails.

Ensure that all board surfaces are clean and free from dust and then apply aluminium foil vapour-seal tape to all joints. Taping the joints of the Celotex insulation with self adhesive aluminium foil tape provides a good vapour control layer and improves air tightness.

Seal the insulation at all abutments and service penetrations with a vapour resistant sealant.

Fix plasterboard lining over the Celotex insulation using plasterboard nails or screws of appropriate length and joint or skim to the desired finish.

No separate vapour check membrane is required in this application; Celotex insulation acts as an effective internal vapour control layer when all joints are sealed. Suspended timber floor insulation Celotex


Product availability indicators

Availability is GoodAvailability Excellent - popular product generally available at majority of our depots.
Expect 1 - 2 working days for delivery.

Availability is FairAvailability Good - only available at selected depots, or shipped directly from the manufacturer.
Allow 1 - 4 working days for delivery.

Availability is PoorAvailability Fair - specialist, or application specific product, sourced directly from manufacturer.
Allow 1 - 9 working days for delivery, plus minimum quantities may apply.

Availability is ProblematicAvailability poor - specialist, or application specific product, sourced directly from manufacturer, possibly fabricated to order.

Extended lead-times apply . Minimum quantities will apply.

Availability is not determinedAvailability Undetermined - Special circumstances are involved in the supply of these products. Please check the notes relating to these items.

Manufacturer's details

Celotex Limited, Lady Lane Industrial Estate, Hadleigh, Ipswich, Suffolk, IP7 6BA
Web site: Celotex Home Page
Web site: Celotex U Value Calculator


Celotex Technical Advisory Service

While just-insulation provides the very best products at the very best prices ... for the very best advise we strongly recommend you contact the Celotex Technical Advisory Service.
Telephone: 0901 996 0100 (30p per minute) - Fax: 01473 820 889 - Email: technical@celotex.co.uk