Archives: Glossary

  • Room-by-Room Heat Loss

    A detailed calculation of heat loss for each room, used to size radiators, underfloor heating and heat pumps.

  • Rising Damp

    Moisture rising from the ground through walls or floors, usually linked to a failed or missing damp proof course.

  • Return Temperature

    The temperature of water returning from radiators or underfloor heating back to the boiler or heat pump.

  • Retrofit Plan

    A staged plan for improving a home over time, often following a whole-house approach.

  • Retrofit Installer

    A contractor who installs energy-efficiency measures such as insulation, heating, ventilation or renewables.

  • Retrofit Design

    The technical design of energy-efficiency measures, including specifications, drawings, moisture risk and ventilation requirements.

  • Retrofit Coordinator

    A qualified person responsible for overseeing the retrofit process under PAS 2035, including risk management and coordination.

  • Retrofit Assessor

    A qualified person who gathers the property information needed for a retrofit project.

  • Retrofit Assessment

    A property assessment that looks at the building condition, occupancy, energy use, ventilation, heritage issues and suitability for improvement measures.

  • Retrofit

    Improving an existing building to make it more energy efficient, comfortable, healthy and lower carbon.