A detailed calculation of heat loss for each room, used to size radiators, underfloor heating and heat pumps.
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Rising Damp
Moisture rising from the ground through walls or floors, usually linked to a failed or missing damp proof course.
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Return Temperature
The temperature of water returning from radiators or underfloor heating back to the boiler or heat pump.
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Retrofit Plan
A staged plan for improving a home over time, often following a whole-house approach.
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Retrofit Installer
A contractor who installs energy-efficiency measures such as insulation, heating, ventilation or renewables.
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Retrofit Design
The technical design of energy-efficiency measures, including specifications, drawings, moisture risk and ventilation requirements.
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Retrofit Coordinator
A qualified person responsible for overseeing the retrofit process under PAS 2035, including risk management and coordination.
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Retrofit Assessor
A qualified person who gathers the property information needed for a retrofit project.
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Retrofit Assessment
A property assessment that looks at the building condition, occupancy, energy use, ventilation, heritage issues and suitability for improvement measures.
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Retrofit
Improving an existing building to make it more energy efficient, comfortable, healthy and lower carbon.