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Part L & E Regulations: no more thermal bridges & unwanted sound

29 Aug 2006

The 2002 edition of Part L1 of the building Regulations states that "The building fabric should be constructed so that there are no significant thermal bridges or gaps in the insulation layers within the various elements of the fabric."

Steel in very well known for it's ability to conduct heat and sound and when a metal member is required to run from inside the building envelope through the insulation cavity and on to the outside of the building, it creates a pathway - a cold bridge, which is very efficient at conducting heat energy out of the building and conducting cold back into the building.

The satisfactory solution of breaking the thermal bridges and unwanted sound transition is now available!

Due to the efficiency of the ThermConx to halt heat energy transferring both ways, the problems of cold spots forming in the walls and ceiling of the building, immediately around where the members protrude through the insulated envelope, are not created.

The ThermConx can be used when ever there would have been a thermal bridge created, fixing back to the structure.


Balconies Balustrades Roof gardens Canopies Rainwater stubs Signage Access ladders External stairs Internal stairwells

This unique invention allows the designer the continued freedom to attach items to the outside (or externally) of a the building envelope or structure, while at the same time securely fixing back these items to the building structure of frame work which is contained within the insulative envelope of the building, with out creating a cold bridge, in compliance with Part "L" of building regulations.

Benefits of ThermConx:

Enables cold bridging and the associated problems to be designed out of the building, improving the living environment for the occupiers and reducing the carbon foot print of the building. It is unique because it affords a structural load bearing connection to be made between 2 or more members, these members could be any material but are mostly likely to be metal, concrete or wood or any combination of these materials.

It affords the transmission of mechanical loading from on member to another, through the thermal connection with no loss of efficiency of loading.

Although the Thermally broke connection allows the efficient transmission of forces through the connection it does not allow the transmission of the thermal energy or sound waves.

Eliminate sound transition:

The overall aim of the amendments to Part E of the Building Regulations is to improve the sound insulation, both between and within dwellings, as well as between rooms in hostels, hotels and residential homes.

The whole range of Bolt on balconies have been designed to virtually eliminate sound transition by way of a sound absorbing membrane built into the structure of the balcony chassis almost halting completely, any reverberation from the flooring of the balcony through into the chassis. This combined with the sound deadening qualities of the thermal break designed into the cantilever arms almost completely eliminates any resonation of reverberation being transmitted from the balcony back into the structure of the building.

For more technical details please visit or call Archtechnik UK on 08704 60 48 31,