Welcome to the Celotex Insulation Blog

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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Rob Firman

Author Archives: Rob Firman

Rob Firman is a member of the Celotex Technical Centre team in the role of Technical Services Officer. Rob comes from a background of technical positions at manufacturers of specialist construction materials. He enjoys developing his knowledge of construction and building performance.


With the shortlist for the recent BBC Sports Personality of the Year Award dominated by Olympians many people will think back to their favourite Olympics with great sporting achievements from the likes of Sir Steve Redgrave on the rowing lakes, Sir Chris Hoy in the velodromes or Denise Lewis OBE in the heptathlon competition.

My favourite Olympics is the 1992 games in Spain not only did Freddie Mercury and Montserrat Caballe’s brilliant ‘Barcelona’ feature in television coverage but Britain’s Linford Christie won the marquee event of the men’s 100m final in a time of 9.96 seconds. Improvements in sports science and training methods have helped subsequent 100m Olympic champions better this time with Usain Bolt posting an incredible 9.69 seconds at the Beijing Olympics.

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.How to insulate your attic wall? Things to consider.

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

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How to insulate your loft? Things to consider.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.

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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:

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Please use the link below to read our latest statement regarding Class 0:

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This post will cover what perimeter upstand insulation is and how it works in solid floor constructions.

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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:

Read more

Please use the link below to read our latest statement regarding Class 0:

Read more

In-built separating layer in Celotex FI5000

Celotex continues to innovate not only through improved website tools like the new and improved U-value Calculator but also through continuous development and improvement of the products we offer.

In the past 18 months Celotex has brought several innovative products to the market.  A perfect example of this is our full fill cavity wall board, Celotex CF5000, which allows designers to achieve the much desired 0.18 W/m2K in a 100mm cavity as standard

Within all Celotex product innovations the need to understand the motivations of the people installing the insulation is paramount. One often asked question from contractors and designers to the Celotex Technical Centre is why we need a separating layer on top of the insulation prior to laying screed. The need to protect the foil face of the insulation from the wet screed, stopping screed migration through the board joints and creating a vapour control layer is the answer. This practice is well established in the insulation industry and has its place when the motivation for a quick completion on site is not so great.

Floors…by Celotex has offered another approach.

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Celotex Technical Team Member Rob Firman

My name is Rob Firman and I’m a new member of the Celotex Technical Centre team. I joined the company following technical roles at a roofing systems manufacturer and a storage tank manufacturer. I have had some experience of insulation in the past so realise insulation is much more than the ‘fluffy stuff’ that sits in your loft. However, in my initial weeks with the company I have undergone a thorough and intensive training programme to allow me to ‘know insulation inside and out’. Throughout this time I have learnt many things about Celotex Insulation and PIR insulation in general. With this in mind I have used my blogging debut to share my ‘top 5 things I didn’t know about insulation’.

 

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