Abbreviations

Abbreviations 
CCSPFClosed-Cell Spray Polyurethane Foam insulation
CMUConcrete Masonry Unit
EPSExpanded Polystyrene Insulation
ICFInsulated Concrete Form
LAMLiquid-Applied Membrane
LVLLaminated Veneer Lumber
OCSPFOpen-Cell Spray Polyurethane Foam Insulation
SAMSelf-Adhered Membrane
SIPStructural Insulated Panel
T&GTongue and Groove
TPOThermoplastic Polyoefin
XPSExtruded Polystyrene Insulation
WRBWater-Resistive Barrier
NZBCNew Zealand Building Code
WHOWorld Health Organisation
BRANZBuilding Research Association New Zealand
NIWA
PHPassive House (or Passivhaus in German)
PHIPassive House Institute in Darmstadt, Germany
PHINZPassive House Institute New Zealand
PHPPPassive House Planning Package
kg-CO2eqEquivalent global warming impact of the item in kg of CO2
ACHAir Changes per Hour
ACHn50Air Changes per Hour at 50 Pascals
PaPascals a measure of pressure
iPHAInternational Passive House Association
uPVCun-plasticized Polyvinyl Chloride
TFATreated (useful interior) Floor Area
PERPrimary Energy Renewable
PIRPolyisocyanurate Rigid insulation or polyiso or ISO
PURPolyurethane Rigid insulation
PFPhenolic Foam insulation
MVHR
HRV
ERV
LEB
BREEAM Building Research Establishment Environmental Assessment Method used in the UK being replaced by the Code for Sustainable Homes (CSH) for new housing.
AECBSustainable Building Association was the Association for Environment Conscious Building
IAQIndoor Air Quality
LEEDLeadership in Energy and Environmental Design USA system
RH Relative Humidity