Measuring sustainability

The materials that we use in building are diverse, but can be assessed in a number of ways. These include looking at their:-

U values

U-values are a measure of how insulating a material is. The lower the figure the more insulating the material or product.

Embodied energy

Embodied energy looks at the energy required to manufacture, maintain and dispose of materials and products.


Recyclability sees how easy it is to use the materials again.


Lifespan looks at the length of time before replacement is required.


Breathable materials allow water vapour (not liquids) to move in and out of the structure. They absorb moisture when in excess and release it back when drier. This process is very healthy as it maintains humidity at steady levels

All Site Content ©2009 Sustainable Building Resource
All sustainable building encyclopedia content is released under the GNU FDL free document content license.
Built and supported by Cardiff Web Design,Search Engine Optimisation and good cause fanatics. Clear Intent