Celotex TB4000 is a large range that is available in a number of thickness under the model numbers, TB4012, TB4020, TB4030, TB4040. To get the information on Celotex TB4000 insulation range directly from the Celotex insulation manufacturer click here.
Buy Celotex Insulation Board Online | Save up to 54% Full range of Celotex insulation below. You will find every product from Celotex ga4000 to xr4000 on this page. Filter by size: Celotex 25mm, 50mm or 100mm, to refine your search.Need expert advice? Contact us by phone on 020 3582 6399, Live Chat - Free Delivery on all orders over £300 - Hassle-Free Return Policy - Read Our Guide What is an R-value? - blog.celotex.co.uk An R-value is the resistance value of particular components in construction and includes materials such as plasterboard, brick or insulation. It tells you how well these components insulate against heat and is determined by thickness. Adding them all together gives you an understanding of how well the construction will stop the heat escaping. R Value Calculator | ROCKWOOL
The lambda value, also portrayed as ‘K-value’ or ‘λ-value’, measures a product’s thermal conductivity in units of W/m·K. A good insulation will have as low a lambda value as possible to reduce heat loss. For example, our new lower lambda products each have a lambda value of 0.018 W/m·K across all thicknesses. What about an R-value?
Using 50mm polystyrene instead of 50mm Celotex for R value or 50mm polystyrene is 1.25. R value of 50mm Celotex is 2.25. It has to be noted that over 7-10 years Celotex will drop in R-value to match the polystyrene as polystyrene will not drop. Wickes supply 50mmx1200mmx2400mm polystyrene @ £14-56 per sheet (2.16KG per board average density) Wickes supply 50mmx1200mmx2400mm Celotex @ £22-78 Buy Celotex Insulation Board Online | Save up to 54% Full range of Celotex insulation below. You will find every product from Celotex ga4000 to xr4000 on this page. Filter by size: Celotex 25mm, 50mm or 100mm, to refine your search.Need expert advice? Contact us by phone on 020 3582 6399, Live Chat - Free Delivery on all orders over £300 - Hassle-Free Return Policy - Read Our Guide
GA4000 50mm - 100mm XR4000 120mm - 200mm These are all essentially the same product but with varying thicknesses of Insulation Board. Celotex Insulation boards are made from a expanded Polyisocyanurate (PIR) insulation foam with a foil facing to both sides. Lambda Value = 0.022 Thickness = …
Celotex FF4000 has a built-in VCL due to the foil facers but this is discontinuous at the board joints. In some applications no further attention to moisture control may be necessary. Celotex would generally recommend the application of a vapour sealant between the tops of the boards at all edges. Buy Celotex Insulation boards Cheap Celotex Online Here The Celotex GA4000 board is the most popular of the Celotex products supplied by Insulation Warehouse and is designed for used in insulating both pitched and flat roofs, solid masonry walls, timber and steel framed walls and in a variety of floor insulation applications these come in sizes 2400 x 1200 and range from 50 up to 100mm thick. Cheap kingspan, celotex, xtratherm | Discounted products