Perplexed by all this talk of u-values and blower door tests? Our sustainable building glossary will help you get to grips with the key terminology.
Energy required to extract, manufacture process, transport, and install a product
|Energy Performance Coefficent||
The Energy Performance Coefficent (EPC) and Carbon Performance Coefficient (CPC) measure the energy and carbon efficiency of buildings under the Irish building regulations. Here we compare the EPC and CPC for this dwelling to Ireland’s proposed nZEB standard and to the current (2011) and past versions of Part L of the Irish building regulations. The lower the fraction, the better the score - so for instance a house with an EPC of 0.4 is 60% better than the 2005 regs.
|Exhaust air heat pump||
This type of heat pump extracts heat from waste air leaving a heating system and uses it to provide hot water or space heating, using electricity to boost the temperature if needed.
A type of rigid foam used for insulation, typically for external insulation
Insulation applied to the outside of a building