Breathing walls: breathing walls are claimed to help reduce pollution and save energy

Article Abstract:

There have been concerns about the effects on health of living in tightly sealed buildings. Many architects have sought alternative forms of construction combining energy efficiency and breathability. Dynamic insulation involves the drawing of cold outside air through a porous insulation material, which is then warmed by heath escaping through the construction. Diffusive insulation also involves porous insulation materials allowing pollutant concentrations to be reduced with differential rates of diffusion. Breathing construction is more widely used involving Warmcel insulation made of recycled newspaper.

Design and construction, Walls

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Fit for business: floor loads

Article Abstract:

The requirement for high floor loadings for offices is often unnecessary. It is assumed that floor loading of 4 or 5kN/m squared is needed for offices and converting existing buildings to this standard can damage the existing fabric. However, surveys show office loadings have two parts. Firstly, the general load of people and their office equipment which has changed little over time and imposes only a load of about 1kN/m squared. Secondly, high load areas for machinery or files that may need 10kN/m squared. This type of load is best accommodated in basement areas.

Standards, Buildings and facilities, Offices, Floors

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