| CCSPF | Closed-Cell Spray Polyurethane Foam insulation |
| CMU | Concrete Masonry Unit |
| EPS | Expanded Polystyrene Insulation |
| ICF | Insulated Concrete Form |
| LAM | Liquid-Applied Membrane |
| LVL | Laminated Veneer Lumber |
| OCSPF | Open-Cell Spray Polyurethane Foam Insulation |
| SAM | Self-Adhered Membrane |
| SIP | Structural Insulated Panel |
| T&G | Tongue and Groove |
| TPO | Thermoplastic Polyoefin |
| XPS | Extruded Polystyrene Insulation |
| WRB | Water-Resistive Barrier |
| NZBC | New Zealand Building Code |
| WHO | World Health Organisation |
| BRANZ | Building Research Association New Zealand |
| NIWA | |
| PH | Passive House (or Passivhaus in German) |
| PHI | Passive House Institute in Darmstadt, Germany |
| PHINZ | Passive House Institute New Zealand |
| PHPP | Passive House Planning Package |
| kg-CO2eq | Equivalent global warming impact of the item in kg of CO2 |
| ACH | Air Changes per Hour |
| ACHn50 | Air Changes per Hour at 50 Pascals |
| Pa | Pascals a measure of pressure |
| iPHA | International Passive House Association |
| uPVC | un-plasticized Polyvinyl Chloride |
| TFA | Treated (useful interior) Floor Area |
| PER | Primary Energy Renewable |
| PIR | Polyisocyanurate Rigid insulation or polyiso or ISO |
| PUR | Polyurethane Rigid insulation |
| PF | Phenolic 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. |
| AECB | Sustainable Building Association was the Association for Environment Conscious Building |
| IAQ | Indoor Air Quality |
| LEED | Leadership in Energy and Environmental Design USA system |
| RH | Relative Humidity |
