Sustainable Building Conservation

Glossary

absolute humidity	a measure of moisture in the air, regardless of temperature
ATTMA	Air Tightness Testing and Measurement Association
BER	building energy rating
BREEAM	Building Research Establishment Environmental Assessment Methodology
breathable	the capacity and the requirement for traditional built fabric to ‘breathe’ allowing the permeation of vapour between external and internal environments
CBO	Church Buildings Officer
CEN	Comité Européen de Normalisation
CHP	combined heat and power
cortile	(Italian) an internal court
DAC	Diocesan Advisory Committee
DECC	Department of Energy and Climate Change
dew point	the temperature to which the air would have to cool (at constant pressure and constant water vapor ...