Thermal insulation thickness is at least 10-15 cm, because only then can partition with heat transmission factor U=0,25-o,3 W/m2K be obtained. And only than when we will use to insulate polystyrene, mineral wool, cellulose fibre, pearlite, polyurethane foam etc. that is materials with λ≤0,05 W/mK heat transmission factor. Application of a very good thermal insulation 5 cm thick, will not achieve the increase of the wall insulating power to the valid level. It means that in layer walls with constant air void (usually 3-6 cm thick ), filling the void with insulation material will not improve partition features enough. Besides, you should remember that in many houses elements like concrete beams or lintels are huge thermal bridges with much worse insulation factors than the wall. Because of that old houses should not be insulated with less than 12 cm thick thermal insulation.

The Low Carbon Homes Programme
As a company caring for the environment and realising the Green Energy policy, we adjust our work and projects to the newest acts and directives concerning Irish environment protection like the Low Carbon Houses project.
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The European Business Awards
Polconstruct has been chosen as one of the ten finalists for The Entrepreneur of the Year Award in The European Business Awards.
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Polconstruct UK on the list of Built Environment Gold Winners of the 2008.
We are on the list of Built Environment Gold Winners 2008, awards created by Green Organization to recognize, reward and promote the best environmental practices around the world.
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