Celotex Crown-Bond is a high performance flat roofing insulation board featuring innovative composite facers on both sides, a low lambda value of 0.022 W/mK and a compressive strength of up to 150 kPa, providing increased dimensional stability and added robustness.

FI5000 features an enhanced compressive strength value of ≥175 kPa making it the ideal solution for a range of flooring applications. Board size: 1200 x 2400mm, Commonly available in thickness's of 75mm, 100mm and 125mm. Celotex insulation boards are the ideal product whatever you thermal insulation needs are. Here is a breakdown of the range by function: The unique Celotex online U-value calculator generates a U-value specific to the chosen construction and enables you to input a range of different construction parameters to evaluate their impact on thermal insulation board 100mm sheets 1200mm x 2400mm like kingspan celotex 8 x 4 - foil faced 40 sheets available approx £35 a sheet brands may vary collection from bradford tel: 07828886702 can deliver local for a charge depending on dist We provide U-value calculations to show compliance with current Building Regulations / Standards and best practice. These can be supported with a detailed report. The easiest way of getting a U-value calculation is by using our free online U-value Calculator. For more information, see our articles and how to videos below.

Celotex Crown-Bond is a high performance flat roofing insulation board featuring innovative composite facers on both sides, a low lambda value of 0.022 W/mK and a compressive strength of up to 150 kPa, providing increased dimensional stability and added robustness.

Sep 30, 2007 · Kingspan and Celotex are essentially the same thing. If you can't get 45mm, then 50mm will be better. You need to provide 135mm. How you fit that between or beneath won't matter, so shop around and get the maximum thickness between (Leave 50mm above airgap) and then you have less reduction inside the hall. 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. Celotex SL 5000 Product Suspension announcement: 5000 Class 0 testing 1 Sept 2017, Celotex Saint-Gobain, UK, Email: info@celotex

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1980: In the U.S. in the 1980's Celotex Thermax insulating board was described by the Celotex Company (Jim Walters corporation, Tampa) as an insulating sheathing board with an R-value of 5.4 for a 3/4" thick board: higher R than its competitors at the time as it was compared with foam insulating board sold by Dow, WR Grade and Simplex Aug 05, 2010 · Kingspan Thermapitch 2400 x 1200 x 45mm boards (K value=0.023 w/mk, therefore R value = 2.1739) Choice 2 Wool Insulation 50mm x 400mm *10m (K value = 0.038 w/mk, or R value = 1.316) Please can someone advise me whether this difference in insulation K and R values are significant. The Kingspan provides better insulation based on these scientific A U-value is a sum of the thermal resistances of the layers that make up an entire building element – for example, a roof, wall or floor. It also includes adjustments for any fixings or air gaps. A U-value value shows, in units of W/m²·K, the ability of an element to transmit heat from a warm space to a cold space in a building, and vice versa. Advantages of 100mm Celotex FR5000: Has a lower thermal conductivity value (0.021W/mK) compared with other typical PIR insulation boards providing enhanced thermal performance and better U-values Achieves an A+ rating when compared to the BRE Green Guide 2008 Sep 06, 2009 · 100mm Celotex between rafters will only give you a U-value of 0.27 and for an insulated pitched roof you need to achieve a U-value of 0.2W/m2K. To do this the rafters will need to be underdrawn with a further 20mm celotex in addition to the 100mm between the rafters.