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Customer Review

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Rating 
 
Reviewer Name: Ken Shaw
Location: Wilts
Much cheaper than local builders merchant. Product fine to work with.
 
Rating 
 
Reviewer Name: Ester Thompson
Location: Blackpool
Arrived on time, driver very helpful. Unloaded it onto our drive way. Would use again
 
Rating 
 
Reviewer Name: Sheila Vaughn
Location: Glasgow
Good product good price. Driver wouldn\\\\\\'t help me into my property
 
 
Celotex TB4012 12mm Unit price £ (£15.38 inc VAT) See below for multi-buy discounts*  
 

Thickness: 

12mm
 

Length: 

2.4m
 

Width:  

1.2m
 
 
 
 

Product Summary

Celotex TB4000 (previously TB3000) is a multi-purpose insulation board developed to provide simple solutions for overcoming localised thermal bridges.

T-Break is a thin, foil faced insulation board with un-reinforced core foam and thicknesses ranging between 12mm and 45 mm

These boards are silver backed both sides easy to cut with a blade or fine toothed saw. They are ideal for insulating walls concrete or timber floors as well as timber or steel framed walls.

Celotex TB 4000 Boards

Cleotex GA4000 Boards

 

QR Code
 
Product Name Size Unit Price Multi-Buy Price* Qty. SubTotal Final Price Ex VAT Discount %
Celotex 12mm Foil Backed PIR Boards TB4012 ( Enquire about availability before ordering) 2400mm*1200mm £12.82 £12.82 
£0.00 £0.00 0.00 %
Celotex 25mm Foil Backed PIR Boards TB4025 2400mm*1200mm £16.83 £16.33 
£0.00 £0.00 0.00 %
Celotex 30mm Foil Backed PIR Boards TB4030 2400mm*1200mm £18.51 £17.95 
£0.00 £0.00 0.00 %
Celotex 40mm Foil Backed PIR Boards TB4040 2400mm*1200mm £21.67 £21.02 
£0.00 £0.00 0.00 %
Celotex 50mm Foil Backed PIR Boards GA4050 2400mm*1200mm £23.48 £22.78 
£0.00 £0.00 0.00 %
Celotex 60mm Foil Backed PIR Boards GA4060 2400mm*1200mm £29.06 £28.19 
£0.00 £0.00 0.00 %
Celotex 70mm Foil Backed PIR Boards GA4070 2400mm*1200mm £33.70 £32.69 
£0.00 £0.00 0.00 %
Celotex 75mm Foil Backed PIR Boards GA4075 2400mm*1200mm £34.63 £33.59 
£0.00 £0.00 0.00 %
Celotex 80mm Foil Backed PIR Boards GA4080 2400mm*1200mm £38.13 £36.99 
£0.00 £0.00 0.00 %
Celotex 90mm Foil Backed PIR Boards GA4090 2400mm*1200mm £42.30 £41.03 
£0.00 £0.00 0.00 %
Celotex 100mm Foil Backed PIR Boards GA4100 2400mm*1200mm £44.61 £43.14 
£0.00 £0.00 0.00 %
Celotex 120mm Foil Backed PIR Boards XR4120 2400mm*1200mm £55.68 £54.01 
£0.00 £0.00 0.00 %
Celotex 130mm Foil Backed PIR Boards XR4130 2400mm*1200mm £60.21 £58.40 
£0.00 £0.00 0.00 %
Celotex 140mm Foil Backed PIR Boards XR4140 2400mm*1200mm £64.39 £62.46 
£0.00 £0.00 0.00 %
Celotex 150mm Foil Backed PIR Boards XR4150 2400mm*1200mm £68.56 £66.50 
£0.00 £0.00 0.00 %
Celotex 200mm Foil Backed PIR Boards XR4200 ( Normally only in packs of 6 only . Bespoke item- no returns) 2400mm*1200mm £95.76 £92.89 
£0.00 £0.00 0.00 %
42 mm Dry Wall Screws Box 1000 Box 1000 £8.20 £8.20 
£0.00 £0.00 0.00 %
65mm Dry Wall Screws Box 500 Box 500 £12.95 £12.95 
£0.00 £0.00 0.00 %
75mm Dry Wall Screws Box 500 Box 500 £13.20 £13.20 
£0.00 £0.00 0.00 %
100mm Dry Wall Screws Box 200 Box 200 £12.95 £12.95 
£0.00 £0.00 0.00 %
Foil backed Jointing Tape 100mm *45m 100mm*45m £8.97 £8.97 
£0.00 £0.00 0.00 %
Foil backed Jointing Tape 75mm *45m 75mm*45m £6.95 £6.95 
£0.00 £0.00 0.00 %
Foil backed Jointing Tape 50mm *45m 50mm*45m £4.82 £4.82 
£0.00 £0.00 0.00 %
Polythene Damp proof membrane ( black) 4m x 25m 250Mu 4 metres x 25metres £35.05 £35.05 
£0.00 £0.00 0.00 %
Polythene Damp proof membrane ( black) 4m x 25m 300Mu 4 metres x 25metres £39.75 £39.75 
£0.00 £0.00 0.00 %
  £0.00
 

Celotex TB4000 (previously TB3000) is a multi-purpose insulation board developed to provide simple solutions for overcoming localised thermal bridges.

T-Break is a thin, foil faced insulation board with un-reinforced core foam and thicknesses ranging between 12mm and 45 mm

These boards are silver backed both sides easy to cut with a blade or fine toothed saw. They are ideal for insulating walls concrete or timber floors as well as timber or steel framed walls.

Product Description

Celotex Tuff-R, with its low emissivity foil facings, is ideal for pitched and flat roofs, solid masonry walls, timber or steel framed systems, and floors.
GA4000 is manufactured from rigid polyisocyanurate and uniquely reinforced with glass fibre using a blend of blowing agents that have zero ozone depletion and low global warming potentials.

Product Application

Typically this board is used as a thin layer added on the inside of structures rather than insulation between . It creates a layer that overcomes the thermal bridging that would occur through the structure ( e.g. steel or wood studs)

Thermal Bridging

Surface condensation created as a result of cold or thermal bridging

A thermal bridge, also called a cold bridge, is created when materials that are poor thermal insulators come into contact, allowing heat to flow through the path created.

In a building this occurs when the continuity of insulation is broken by say a stud or joist. These ‘bridges’ commonly occur around openings such as lintels, jambs and sills and at wall/roof junctions, wall/floor junctions and where internal walls penetrate the outer fabric.

Thermal bridges provide a ready passage of heat transfer to the outside air and allow a heat flow entirely disproportionate to their surface area resulting in excessive heat losses.

Condensation may occur on the inner surfaces that can damage the dwelling or threaten the health of the occupants.

Celotex is used in conjunction with appropriate internal lining boards, such as Gyproc Plasterboard or associated products such as ThermaLine, as an insulating dry lining system to improve the thermal insulation of existing and new, solid or cavity masonry walls or timber-frame walls of dwellings or buildings of similar occupancy, type and conditions

Technical Spec

Product Code

Thickness (mm)

R-value (m2K/W)

U-Value (W/m²K)

Weight (kg/m2)

Board weight (kg)

Celotex TB4012

12

0.50

2.00

0.50

1.44

Celotex TB4020

20

0.90

1.11

0.72

2.07

Celotex TB4025

25

1.10

0.91

0.85

2.45

Celotex TB4030

30

1.35

0.74

0.98

2.82

Celotex TB4035

35

1.55

0.65

1.11

3.20

Celotex TB4040

40

1.80

0.56

1.26

3.63

Celotex TB4045

45

2.00

0.50

1.40

4.03


Celotex Tuff-R Zero GA4000 will significantly improve the thermal insulation of new and existing, solid or cavity masonry walls (masonry includes clay and calcium silicate bricks, concrete blocks, natural and reconstituted stone blocks) or timber-frame walls of dwellings and buildings of similar occupancy, type and condition.

The walls of new buildings should be designed and constructed in accordance with the relevant codes of practice, eg BS 5628-3 : 2001.
All walls must be in a good state of repair with no evidence of rain penetration, damp or frost damage.

The surfaces of masonry walls should be sound and free from loose material; large projections should be removed and holes filled and levelled. A survey of the wall may be required to establish the extent of any packing that may be required to ensure the support battens provide a uniform plane for the boards to be fixed.

The installation of insulated dry lining systems requires careful detailing around doors and windows to achieve a satisfactory surface for finishing. In addition, every attempt should be made to minimise the risk of cold bridging at reveals and where heavy party walls are attached to the external wall. In new work the construction must be designed to accommodate the thickness of the dry lining, particularly at reveals, heads, sills and in relation to ceiling height.

On existing walls consideration should be given to lining the reveals with a thinner layer of insulation and lining board.

Services can be incorporated in the void formed between the insulation and the lining boards, making chasing of the wall unnecessary. Where the services have a greater depth than the void, the wall should be chased in preference to the insulation. It is recommended that services penetrating the insulation or any vapour check lining board, eg light switches, power outlets, be kept to a minimum to limit possible penetration of water vapour.
When the system is to be installed in existing buildings it should be realised that a small reduction in room size will occur and that permanent fixtures, eg baths, will present difficulties.

Where Celotex Tuff-R Zero GA4000 should be used

Pitched roof with Sarking

Celotex with pitched roof sarking 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. When used over the roof structure as insulating sarking, Celotex insulation creates a warm roof structure and eliminates thermal bridging at the rafters, whilst the foil facings, used in conjunction with taped joints, provide an effective barrier to moisture vapour and air leakage. The use of a single continuous layer of insulation over the rafters thereby eliminates the risk of condensation and avoids the need for ventilation of the rafter space. Where very low U-values are required Celotex recommends a two-layer system in order to reduce the racking forces on the fasteners required to fix counter-battens to rafters. In this system, the first layer of insulation is applied as a complete layer over the rafters. A second, thinner layer is then fitted over the first layer, between the counter-battens.


 

Insulation between and over rafters

Celotex insulation between and over rafters Where headroom and rafter depth is limited, Celotex insulation may be fitted between and over the 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. Where headroom and rafter depth is limited, Celotex insulation may be fitted between and over the rafters. If this two-layer solution is chosen, it is important that the thermal resistance of the inner layer (between the rafters), is less than that of the outer layer (over the rafters). This reduces the risk of interstitial condensation between the insulation layers. The condensation risk also depends upon occupancy and building use. Celotex recommends that a condensation risk analysis is obtained to determine the optimum solution for your project.


Insulation between and under rafters

Celotex between and under 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. If sarking 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 is known as 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, which is known as an unventilated construction.


 

Steel stud framed wall insulation

Celotex applied to Stud WallsHistorically, the use of steel framed walls has been found mostly in the construction of commercial buildings. However, the recent growth in Modern Methods of Construction (MMC) has seen an increase in the popularity of lightweight steel framed buildings for both commercial and residential developments.

The offsite pre-fabrication of framed panels allows rapid, accurate construction on site. To minimise building heat losses, rigid thermal insulation is placed on the outside of the frame as a continuous layer to eliminate thermal bridging through the metal studs. This is known as 'warm frame' construction.

The very low thermal conductivity of Celotex tuff-R GA4000 enables high levels of insulation to be achieved with minimal overall thickness.


 

Beam & block floor insulation

Celotex with beam and block floorBeam and block floors can be insulated simply by laying Celotex Insulation boards over the floor before applying a screed or board finish. 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 beam and block floor, there is little choice but to install the insulation over the floor before screeding. The ventilated air space beneath any suspended floor can be very cold, so Celotex recommends the application of a continuous vapour control membrane over the top of the insulation, before screeding, to reduce the risk of condensation forming at the insulation/slab interface. This also prevents screed migration between the board joints, thus avoiding cold bridges.

 

 

Cleotex GA4000 Boards
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