img(height="1" width="1" style="display:none" src="")

Thermal excellence for floors: Ravatherm XPS X

Ravago Building Solutions' relaunched insulation board offers a 16 per cent improvement in thermal performance and a reduced thickness for added design flexibility

In association with
Ravatherm XPS X 300 SB extruded polystyrene insulation boards at retail chain B&M’s 1 million sq ft distribution centre in Bedford.
Ravatherm XPS X 300 SB extruded polystyrene insulation boards at retail chain B&M’s 1 million sq ft distribution centre in Bedford.

Last year Ravago Building Solutions, Europe’s largest extruded polystyrene insulation (XPS) manufacturer, relaunched its market-leading range of XPS thermal insulation as Ravatherm XPS X. This new array of products offers a 16 per cent improvement in thermal performance in flooring applications compared to those previously, setting a new standard for thermal excellence.

New high-performance Ravatherm XPS X boards give architects unparalleled design flexibility. Target U-values can be attained with a lower thickness of insulation than ever before, ensuring the most creative and demanding of design specifications can be met. 

Ravatherm XPS X products are categorised by their compressive strength, ranging from 200kPa for residential applications to 700kPa suitable for high traffic, load-bearing industrial floors. The versatile boards can be installed under or over the slab in ground-bearing concrete floors and are suitable for use with suspended beam and block and timber floors.

The extrusion process used to produce Ravatherm XPS X results in a homogeneous, closed-cell material structure with a smooth surface skin. Consequently, the boards have several favourable material properties ideal for flooring applications, including permanent high-thermal performance, water and frost resistance, high flexible rigidity and high vapour diffusion resistance.

All products are available in a selection of thicknesses with declared lambda values of between 0.030 and 0.032 W/mK. Blown with CO2, Ravatherm XPS X also has a global warming potential (GWP) of less than 5. To minimise environmental impacts and shipping delays, manufacturing takes place in King’s Lynn, Norfolk.

Flooring Product

Compressive Strength

Edge Profile

Thicknesses (mm)

Ravatherm XPS X 200 SB

200 kPa


50, 75, 100, 125

Ravatherm XPS X 300 SB

300 kPa


50, 75, 100, 125

Ravatherm XPS X 500 SL

500 kPa


50, 75, 100

Ravatherm XPS X 700 SL

700 kPa


50, 100



Ravatherm XPS X 300 SB was recently specified at value retail chain B&M’s new 1 million sq ft distribution centre in Bedford. Specialist cold store contractor ISD Solutions used the BRE Green Guide A rated boards to create temperature-controlled zones for chilled and frozen stock.

To download the brand new Ravatherm app, go to:

For more information and technical support, visit:



LinkedIn: RavagoBuildingSolutionsUK

Twitter: RInsulationUK



Study reveals potential to ‘significantly’ ramp up number of affordable homes delivered on rural exception sites by raising awareness of the benefits

Greater awareness of the benefits of the Rural Exception Site policy is needed

Co-founder of Landolt + Brown, a perfectionist, problem solver and deep thinker whose humour and humanity were reflected in his architecture

Perfectionist, problem solver and deep thinker

Want to reimagine a Welsh village museum, design a Chelmsford housing development or pitch for work on an urban regeneration programme? These are the latest architecture contracts and competitions from across the industry

Latest: Overhaul of Welsh museum dedicated to former UK prime minister

The Urchin Café was conceived and built as a sculpture for use as a café by Matthew Sanderson. It sits beside a 19th century gothic mansion, home to the Plas-Glyn-y-Weddw arts centre, close to Wales’ Llanbedrog beach. The sculptor teamed up with Mark Wray Architects and structural engineer Fold to realise the scheme

Sculpture and café are combined in the work of sculptor, engineer and architect

Exhibition reveals how political messages and militaristic or nationalistic images and patterns bring propaganda to a domestic level on clothes and fabrics

Exhibition shows the subtext in textiles