The term ‘London Plan‘ is popping up more and more in London construction but how well understood is it? In simple terms, the concept stems from the requirement and responsibility of three key stakeholders to the City of London; The Mayor of London, the 32 London Boroughs and The City of London Corporation. The London Plan itself looks at tackling economic, transport, social and environmental challenges such as climate change and its consequences. The aim is that a strong plan to overcome these challenges provides very real business benefits and opportunities as a result of becoming a world leader in these areas.
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Here you will find the latest articles written by our insulation specialists focusing on product developments, building regulations and technical guidance notes.
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Category Archives: Technical
IMPORTANT: On 1 September 2017, Celotex took the precautionary measure to temporarily suspend the supply of Celotex FR5000, Celotex CG5000, Celotex CF5000 and Celotex SL5000 while we investigate the results of recent tests (Parts 6 and 7 of British Standard 476). In addition, we have recently identified a compliance issue relating to our calculation and testing of the declared lambda value of products in the 4000 and 5000 ranges and the Crown-Bond and Crown-Fix products within the Crown Flat Roofing range. Due to this issue, the suspension of the 5000 range will continue and now includes the FI5000 and GD5000 products. Materials relating to the 5000 range products are for information only. Please note that all products in the TB4000, GA4000 below 100mm, PL4000 and CW4000 ranges manufactured after 15 December 2017 will be marketed from January as Celotex 3000 with a declared lambda value of 0.023 W/mK.
Please use the link below to read our full statement regarding declared lambda:
Please use the link below to read our latest statement regarding Class 0:
Underfloor heating is now becoming an increasingly popular method for homeowners wanting to improve the insulation of their home. Not only does underfloor heating provide consistent background heat – the application can also eliminate the requirement for radiators and in turn reduce heating bills. Read more »
IMPORTANT: On 1 September 2017, Celotex took the precautionary measure to temporarily suspend the supply of Celotex FR5000, Celotex CG5000, Celotex CF5000 and Celotex SL5000 while we investigate the results of recent tests (Parts 6 and 7 of British Standard 476). Materials relating to these products are for information only.
Cavity Wall (brick/block) is the predominant Build method for the UK housing industry with 70% of 27.4 million homes built with cavity walls.
The change to Part L1a in 2013 (which sets the guidelines for new residential house builds) brought a second compliance metric, Fabric Energy Efficiency Standard (FEES). Read more »
There are many specification considerations for flat roof design for both performance and aesthetic requirements of the roof. This list represents most commonly asked enquiries from flat roof designers and specifiers; topics include roofing interfaces, compatibility with other roofing products and how to make savings in the rainwater drainage systems. Read more »
Increasing thermal performance is always a high priority for homeowners when looking to upgrade the insulation of their pitched roof.
As well as adding comfort to your home, a well-insulated roof increases property value (when seeking to create an additional room), significantly reduces heating bills and most importantly provides a warm, airtight space without the need for additional pipework.
To ensure you get specification right and achieve the desired results from your roof refurbishment, here are our top 7 considerations: Read more »
The need to ‘go faster’ has not only dominated the world of athletics but has also been seen in the construction industry. The rise in popularity of timber frame houses and off site construction pays testament to this trend for improving the speed of builds.
Which plasterboard insulation would you recommend?
To assist with this need for speed and efficiency Celotex brought to the market insulated plasterboards Celotex PL4000 and more recently GD5000. Both options feature insulation bonded to 12.5mm plasterboards to form a composite product suitable to either mechanically fix or dot and dab depending on your application.
The benefits of plasterboard insulation
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.
Refurbishment can be a technically challenging area. The Celotex Technical Centre speaks to a wide range of customers every day – many of whom are looking for design advice around a refurbishment project.
Whether it is an architect working on a whole building refurbishment or a homeowner who is looking to upgrade the insulation in their own property, there is often a lot of confusion and even fear around topics such as moisture and condensation.
One area that we are often asked about is pitched roof refurbishment. When it is time to renew the roof covering, homeowners are often keen to take the opportunity to increase the thermal comfort of their home – especially if they have lived for many years in a property with little or no roof insulation.
20 years ago you could walk into your local newsagent and spend your hard earned pocket money on a chocolate bar. For your shiny 20 pence piece you could buy a bar that would be more than big enough to spoil your dinner. However, when you walk into your newsagents today not only is the cost of the chocolate bar much higher but the bar itself is a lot smaller. Despite these obvious changes we still expect the same tasty experience.
This trend, to achieve the same with less space, is seen in other areas of modern life with a good example seen when we compare new housing developments with developments of 25 years ago. The need for plot optimisation sees today’s developments with 3 storey ‘room in roof’ houses, whereas developments of 25 years ago tended to have only 2 liveable storeys.
Similarly this general trend has transferred itself to the refurbishment and retrofit markets with homeowners choosing to extend their houses not only outwards but also upwards.
Celotex Insulation offers a range of solutions designed to achieve compliant U-values in the thinnest possible thickness.