The UK retrofit standard for assessing, designing and managing domestic retrofit projects using a whole-house approach.
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PAS 2030
A standard covering the installation of energy-efficiency measures in existing buildings.
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Overheating
When a home becomes uncomfortably hot, often due to solar gains, poor ventilation, insufficient shading or high internal heat gains.
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OpenTherm
A communication system that allows compatible boilers and controls to modulate heating output more efficiently.
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Oil Boiler
A boiler that burns heating oil to provide heating and hot water, common in some off-gas properties.
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Non-Traditional Construction
A building type that does not use standard brick or block cavity wall construction. Examples include concrete panel, steel frame, timber frame and system-built homes.
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Natural Ventilation
Ventilation driven by wind and temperature differences, usually through windows, vents, chimneys and gaps.
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Mould
Fungal growth that can occur where moisture, poor ventilation and cold surfaces are present.
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Moisture Balance
The relationship between moisture entering, moving through and leaving a building. Poor moisture balance can cause condensation, damp and mould.
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Mineral Wool
A common insulation material made from glass or rock fibres. It is often used in lofts, cavities, floors and walls.