Ecotherms uvalue calculator is simple to use, easy to tweak and provides an instant uvalue. Nov, 20 new build windows must achieve a maximum uvalue of 1. Boards are in front of the 120mm boards in pic price is for 1 single board but i do have 3 boards available. Specify your desired uvalue before immediately calculating the required insulation thickness and project. With low emissivity foil facings, xr4120 is manufactured from rigid polyisocyanurate pir using a blend of blowing agents that have zero ozone. We provide celotex solutions that can be used in new builds or in existing properties where refurbishment or. Celotex ga4000 insulation board comes is also known as pir insulation board a very popular board for a number of projects such as ground floors even when underfloor. Before this date, please refer to the uvalues quoted for england. Featuring a low emissivity foil facings, this board has been manufactured from tough polyisocyanurate pir by using a perfect mix of certain blowing agents which acquires zero ozone depletion potential zero odp and a low global warming impact gwp.
Celotex ga4100 100mm product application this thicker version can be used in any rafter or joist application where there is the need to achieve improved uvalues from those available from a. The u value of a product varies widely depending on where the product is used, the materials around the celotex insulation and more, for example the celotex 50mm u value will vary according to the type of celotex board being used, and where it is installed. Nov, 20 using celotex to fill the cavities is more expensive, but you will only need to use 100mm celotex to achieve a uvalue of 0. Celotex insulation board celotex celotex insulation. Celotex ga4000 insulation board is specified by building control as the number one choice for housebuilders. The professional celotex u value calculator is one of the most comprehensive online calculation services in the industry, with a variety of different insulation applications covered.
Uvalue calculations insulation kingspan great britain. A uvalue is a sum of the thermal resistances of the layers that make up an entire building element for example, a roof, wall or floor. If you do stick with it, then go for 2x40mm remember 4x2 is under 100mm normally 95 or so and celotex will not compress. Using celotex to fill the cavities is more expensive, but you will only need to use 100mm celotex to achieve a u value of 0. The following is a table of common materials and their corresponding u value. Apr 21, 2016 this would internally comprise 3mm plaster skim, 12. Celotex ga4000 insulation board comes is also known as pir insulation board. Calculations assume a brick outer leaf, standard wall ties, 100mm inner leaf and 12. Register to gain access to our comprehensive technical library which contains helpful specification tools, including the popular celotex u value calculator, thermal bridging models, bim objects and much, much more. For the purpose of u value calculations to determine if the requirements of the building or other statutory regulations are met, the thermal conductivity 9090 lambda value of the boards may be taken as declared within the celotex bba certificate no. This makes it a highly specialised and very effective insulation solution. Comes in 100mm thickness, making it the thinnest pir insulation available, in a standard board size of 1200mm x 2400mm.
The xr4000 insulation board range from celotex has been designed to provide users with a thinner insulation board that still achieves high u values. U value is a measure of the heat loss depending on the thickness of a particular material. Celotex ga4000s low emissivity aluminum foil facing can help achieve lower uvalues when installed facing a clear air space within a construction. Celotex have constructed an informational kit along with all the details you may want to know on the matter. I use the members area of the celotex website on a daily basis. K, the ability of an element to transmit heat from a warm space to a cold space in a building, and vice versa. Celotex ga4000 celotex 100mm pir board building supplies. Board is also suitable for insulating roofs between rafters or joist floors and enables users to achieve lower uvalues with a single layer of. Isovers tf insulation products are designed for use in timber external wall applications and are available with a variety of thermal resistance values to help meet or exceed your particular uvalue requirements, whether you are building to part l standards.
Unfortunately the calculation was unable to be achieved in the buildup you have supplied. Whatever the project, whatever the size, celotex technical consultants can provide all the help and advice you need to specify celotex products with confi dence. As for celotex, they wanted 100mm in the rafters and 40mm under them. For example, a building with material with an r value of r11 converts to an u value of 0. This insulation board has been produced by celotex, and is one of a series of products created by the manufacturer to a specific insulation role in this case, it has been designed for partial cavity walls. Uvalues for common materials combustion research corporation.
Celotex ga4100 100mm product application 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. Masonry, cavity insulation and external elements would include. Whether you are looking for celotex board 100mm, 50mm or 75mm we have everything in stock. Get kingspan uvalue calculator microsoft store engb. Includes low emissivity foil facings giving improved thermal insulation performance within cavity air spaces. Boards can span up to 600mm joist centres to provide a suitable substrate for.
The insulation shall be celotex xr4000 comprising a polyisocyanurate rigid foam insulation core, with a thermal conductivity of 0. Celotex xr4000 boards have been developed to be used specifically in cuttofit applications, meaning that they can be fitted between rafters and joists to provide a highly insulating. Maximum celotex thickness to use in cavity wall diynot forums. Its a quick guide for the diy enthusiast or anyone that wants to have a go themselves. We provide uvalue calculations freeofcharge to show compliance with current building regulations, standards and best practice. This is a thermal insulation solution that can help achieve energy use and carbon dioxide emissions targets set by national building regulations. The professional celotex u value calculator is one of the most comprehensive online calculation services in the industry, with a variety of different insulation applications covered specify your desired u value before immediately calculating the required insulation thickness and project. Cf5000 insulation boards by celotex suitable for use in full fill cavity wall applications, celotex cf5000 is the latest addition to our portfolio, bba certified and making use of the whole cavity width, cf5000 optimises thermal performance through the wall achieving a lower uvalue without having to widen the cavity. Register to gain access to our comprehensive technical library which contains helpful specification tools, including the popular celotex uvalue calculator, thermal bridging models, bim objects and much, much more. Board is also suitable for insulating roofs between rafters or joist floors and enables users to achieve lower u values with a single layer of. It has to be noted that over 710 years celotex will drop in rvalue to match the polystyrene as polystyrene will not drop. Celotex ga4000 general purpose pir insulation board 1. Is suitable for use in a number of applications including roof, wall and floor systems.
Cf5000 insulation boards by celotex suitable for use in full fill cavity wall applications, celotex cf5000 is the latest addition to our portfolio, bba certified and making use of the whole cavity width, cf5000 optimises thermal performance through the wall achieving a lower. The professional celotex uvalue calculator is one of the most comprehensive online calculation services in the industry, with a variety of different insulation applications covered. We provide celotex solutions that can be used in new builds or in existing properties where refurbishment or replacement insulation board is needed. Understanding uvalues is absolutely key to ensuring you insulate your home properly. Products is aimed at cut to fit applications in timber frame or solid walls. The only thing to bear in mind here is that you still need to keep a residual cavity on the outside but this means the cavity can be marginally thinner. If you have a heating application that we can help you save on your monthly heating costs. I use the members area of the celotex website on a. Different insulation materials are compared by their u values and the best one is supposed to have a u value of zero or anywhere closer to that.
Celotex ga4000 high performance insulation board for. We provide celotex u value calculator that allows to quickly produce u values specific to your project. Using 50mm polystyrene instead of 50mm celotex for extension. The first thing to make clear is that the celotex tb, ga, and xr are the same foilbacked pir boards, but different thickness. Created to help prevent thermal bridging, this board by celotex has been produced to be significantly thinner than many of the other products in the manufacturers extensive range. In a nutshell your roof could end up with condensation interstitial. A single glazed window will have a uvalue of around 4. Members of the bba competency scheme for uvalue and condensation risk analysis have been pleased to. Featuring a low emissivity foil facings, this board has been manufactured from tough polyisocyanurate pir by using a perfect mix of certain blowing agents which acquires zero ozone depletion potential zero. Download this app from microsoft store for windows 10 mobile, windows phone 8. In this video i show how to cut insulation board such as kingspan, recticel and celotex. You will not achieve the correct u value which is the thermal resistance.
Login to the celotex members area for a range of specification tools, making specifying celotex easy. Information on the uvalues and product solutions is available from the. We stock the celotex ga4000, xr4000, and pl4000 thermal laminate as well as a selection of their highperformance pir insulation board. Celotex xr4000 insulation boards celotex xr4000 uses. The kingspan blog suggests that you put a dpc behind the battens. Celotex cw4050 cavity wall slab 50mm planet insulation. Using celotex to fill the cavities is more expensive, but you will only need to use 100mm celotex to achieve a uvalue of 0. You can use two sheets of 50mm but it is not enough to comply with current regulations. Ideally if using celotex you need a minimum of 120mm. Celotex insulation board is the number 1 choice of top quality pir insulation and celotex maintains its position as the preferred insulation specialist for professionals and diy. It also includes adjustments for any fixings or air gaps.
U values measure how well a material performs as an insulator. To make your purchase as simple and easy as possible, please refer to the store policies listed below. It provides a continuous layer of celotex to meet the target uvalue and because it is has a 9. Unfortunately it is not a build up i am that familiar with, and condensation is quite a specialist area, but it seems that you have your exterior wall, a strip of dpc behind each 25x47mm batten then 82. Celotex celotex insulation celotex insulation board. Adopting a fabric first approach using low uvalues within the walls, floors. Xr4120 is also appropriate for use in floors and walls. Register to gain access to our comprehensive technical library which contains helpful specification tools, including the popular celotex uvalue calculator, thermal. A guide to the specification of insulation materials in order to achieve. Providing you with instant calculations all day, everyday with step by step options and hints and tips along the way, the no jargon uvalue calculator takes you through your. New build windows must achieve a maximum uvalue of 1. Celotex celotex insulation building supplies online. Ecotherm insulation free uvalue calculator ecotherm. This makes it a highly specialised product that can be used in a variety of refurbishment and construction projects.
My cavity walls only use 80mm and that was considered high but needed because of neighbouring glazed walls. Please contact our technical team for a bespoke calculation, alternatively try using the calculator again with different options or extending your timber depths. Specify your desired u value before immediately calculating the required insulation thickness and project. Garage conversion u rating celotex insulation problem avforums. Thermal upgrade not required if the existing structure has a u.
This level of efficiency means that the thickness of insulation needed to hit the required uvalue is reduced, thereby optimising space in construction design. Further, these are the replacement for the tbgaxr3000 series, although those names are still sometimes used to mean this. Celotex high performance insulation board xr4150 2. Celotex 100mm for sale in uk 64 used celotex 100mms. Can i use 2 50mm sheets of celotex for my cold flat roof. A general purpose board which can be used for floor, walls and roofs.
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