Wall Insulation.ie logo supplying external insulation systems in the Dublin area
External Wall Insulation on a terrace of houses

Heat your home, not the atmosphere

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Thermal Bridges and the role of External Wall Insulation

One of the immutable laws of nature (2nd Law of Thermodynamics) is that heat always tries to flow from hot to colder places.  The reason for insulation is to slow down that flow as much as possible.   Thermal bridges are where a good conductor of heat Example of a thermal bridge being eliminated. A window Cill cut off before fitting external insulation connects a warm place to a cooler place.  Remembering the 2nd Law of Thermodynamics this means that valuable energy will flow along the bridge from the warm place and escape.


Another way to look at thermal bridges is that they “leave in” cold.  So that patch of the wall will feel cold and probably damp to the touch.

 
In your home there might be thermal bridges in the guise of window cills, door lintels or concrete balconies that extend the floor slab through the building envelope.   

One of the major advantages of external insulation is that you can completely New window cill fitted over a pressed aluminium cilleliminate cold bridges which no other forms of insulation can do.  For example existing window cills can be cut back, new insulation fitted and new cills fitted above.  In this way valuable heat inside the house is retained and not lost to the atmosphere.  See here for step by step pictures of how a project unfolds.

 

In this picture we show a powder coated aluminium cill. We also provide more elaborate architectural cills. Please contact us for more information.