Where are they based?

Unger-Diffutherm are based in Chemnitz in Eastern Germany.

When were they established?

Bernd Unger started the company in 1989 along with the invention of the Diffutherm wood fibre insulation board. This board has been the core insulation board, for several manufacturers since then.

What are the characteristics of their products?

Unger-Diffutherm’s products are technically excellent and specifically created for each purpose. Their systems are comprehensively designed and detailed so that once installed, they are extremely robust, durable and weather-tight.

All of the components are their own and designed to work perfectly within the system as a whole. This makes them applicable to a wide range of buildings, from ancient historic buildings to the latest Passivhaus homes.

What is their support like?

In a word, unrivalled. Whenever we have an awkward or unusual detail, Unger-Diffutherm will create a detail and explain exactly how to build it.

This was actually the main reason that we became one of their suppliers as without this support it can be very difficult to confidently sell these products in a market with little inherent knowledge.

 

What do they specialise in? 

Unger-Diffutherm specialise in extremely well detailed wood fibre insulation systems for internal and external insulation of walls, roofs and floors.

They do lots of work with historic buildings which often requires unusual or unique detailing work to be devised. This enables insulation solutions to be applied to sensitive building fabric without damage, creating warm, comfortable historic buildings.

How long have you worked together?

We have worked with Unger-Diffutherm since 2007 and have a great relationship with them. We have learned an awful lot from them about their systems, wood fibre insulation in general, and building physics which, in turn, allows us to help our customers.

 

Internal and external wood fibre insulation boards - UdiUnger-Diffutherm - Back to Earth
Internal and external wood fibre insulation boards - UdiUnger-Diffutherm from £17.58
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Wood fibre insulation boards for uneven surfaces - UdiRECO - backtoearthsupplies
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Wood fibre insulation boards for uneven surfaces - UdiRECO from £33.01
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Weather tolerant wood fibre render carrier board - UdiSPEED - backtoearthsupplies
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Weather tolerant wood fibre render carrier board - UdiSPEED from £16.94
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Thermal and acoustic flexible wood fibre wool insulation - UdiFLEX - backtoearthsupplies
Thermal and acoustic flexible wood fibre wool insulation - UdiFLEX from £23.28
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Wood Fibre Insulation Sarking Boards - UdiTOP - Back to Earth
Wood Fibre Insulation Sarking Boards - UdiTOP from £11.33
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Square edge wood fibre insulation boards - UdiTHERM SK - backtoearthsupplies
Square edge wood fibre insulation boards - UdiTHERM SK from £3.53
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High density wood fibre underlay board (8mm) - UdiSTEP - Back to Earth
High density wood fibre underlay board (8mm) - UdiSTEP from £2.06
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Wood fibre reveal insulation boards (20mm) - UdiUnger-Diffutherm - backtoearthsupplies
Wood fibre reveal insulation boards (20mm) - UdiUnger-Diffutherm from £6.10
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Ultra-thin wood fibre insulation boards - UdiIN2CM - Back to Earth
Ultra-thin wood fibre insulation boards - UdiIN2CM from £11.33
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Sound insulating wood fibre board - UdiCLIMATE - backtoearthsupplies
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Sound insulating wood fibre board - UdiCLIMATE from £13.44
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Lime basecoat render for wood fibre insulation - UdiFOUNDATION COAT - backtoearthsupplies
Lime basecoat render for wood fibre insulation - UdiFOUNDATION COAT from £24.10
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Vapour control plaster - UdiMULTIGRUND - Back to Earth
Vapour control plaster - UdiMULTIGRUND from £39.84
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White render primer - UdiPERL - backtoearthsupplies
White render primer - UdiPERL from £28.35
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Fine finish render - UdiPERL - Back to Earth
Fine finish render - UdiPERL £61.50
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Water based wood fibre board glue - UdiSPECIAL ADHESIVE - Back to Earth
Water based wood fibre board glue - UdiSPECIAL ADHESIVE from £8.96
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Expanding hammer fixings - UdiASSEMBLY - backtoearthsupplies
Expanding hammer fixings - UdiASSEMBLY from £41.33
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Masonry fixings - UdiASSEMBLY - Back to Earth
Masonry fixings - UdiASSEMBLY from £67.82
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Timber fixings - UdiASSEMBLY - backtoearthsupplies
Timber fixings - UdiASSEMBLY from £45.70
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Primer for air tightness tapes (1kg) - UdiSTEAM - backtoearthsupplies
Primer for air tightness tapes (1kg) - UdiSTEAM from £13.73
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Flexible air tightness tape - UdiSTEAM Elastoflex - backtoearthsupplies
Flexible air tightness tape - UdiSTEAM Elastoflex from £15.83
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Plasterable airtightness tape - UdiSTEAM Butyl Fleece - backtoearthsupplies
Plasterable airtightness tape - UdiSTEAM Butyl Fleece from £15.52
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Air tightness tape - UdiSTEAM Alubutyl - backtoearthsupplies
Air tightness tape - UdiSTEAM Alubutyl from £19.98
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Air tightness tape for membranes (60mm) - UdiSTEAM Tex - backtoearthsupplies
Air tightness tape for membranes (60mm) - UdiSTEAM Tex from £16.45
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Standard air tightness tape (10m) - UdiSTEAM Butyl - backtoearthsupplies
Standard air tightness tape (10m) - UdiSTEAM Butyl from £16.73
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Joint sealing tape - UdiJOINTING - Back to Earth
Joint sealing tape - UdiJOINTING from £7.73
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Air tightness collars - UdiSTEAM - backtoearthsupplies
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Air tightness collars - UdiSTEAM from £3.50
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Plinth base track - UdiBASE - backtoearthsupplies
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Plinth base track - UdiBASE from £9.12
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Plinth edging strip - UdiBASE - backtoearthsupplies
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Plinth edging strip - UdiBASE from £4.08
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Variable plinth base track plug in profile - UdiBASE - Back to Earth
Variable plinth base track plug in profile - UdiBASE from £6.41
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Variable plinth base track wall profile - UdiBASE - Back to Earth
Variable plinth base track wall profile - UdiBASE from £9.45
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Corner protection profile - UdiREINFORCEMENT - backtoearthsupplies
Corner protection profile - UdiREINFORCEMENT from £3.19
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Render fibreglass edging strip - UdiREINFORCEMENT - backtoearthsupplies
Render fibreglass edging strip - UdiREINFORCEMENT from £8.83
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Interior render edging strips - UdiREINFORCEMENT - backtoearthsupplies
Interior render edging strips - UdiREINFORCEMENT from £5.47
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Corner strengthening mesh - UdiREINFORCEMENT - backtoearthsupplies
Corner strengthening mesh - UdiREINFORCEMENT from £1.42
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3D corner strengthening mesh - UdiREINFORCEMENT - backtoearthsupplies
3D corner strengthening mesh - UdiREINFORCEMENT from £3.15
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Expansion joint profile - UdiREINFORCEMENT - Back to Earth
Expansion joint profile - UdiREINFORCEMENT from £19.01
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Flashing PVC profile - UdiREINFORCEMENT - backtoearthsupplies
Flashing PVC profile - UdiREINFORCEMENT from £11.83
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SBR coated, fibreglass reinforcing mesh - UdiREINFORCEMENT - Back to Earth
SBR coated, fibreglass reinforcing mesh - UdiREINFORCEMENT £64.97
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Breathable roofing underlay - UdiSTEAM Tex 155 - backtoearthsupplies
Breathable roofing underlay - UdiSTEAM Tex 155 £126.75
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Facade underlay membrane - UdiSTEAM Tex 200 - backtoearthsupplies
Facade underlay membrane - UdiSTEAM Tex 200 £205.72
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Variable vapour control layer and airtightness membrane - UdiSTEAM 10 plus - backtoearthsupplies
Variable vapour control layer and airtightness membrane - UdiSTEAM 10 plus £165.08
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100mm Wood Fibre Insulation Sarking Boards - UdiTOP - Back to Earth
100mm Wood Fibre Insulation Sarking Boards - UdiTOP £23.18 £35.67
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