Energy efficiency assessment with transparent assumptions
An energy efficiency assessment helps connect the way a building is constructed and operated with the questions that shape energy demand. Energy-audit.eu provides a preliminary digital assessment for comparing entered building-envelope and system information before decisions are made about renovation or further investigation.
What influences energy efficiency
Energy efficiency is not a single material or appliance. Walls, roof, floors, foundations, windows, doors, heating equipment, ventilation and local climate all influence estimated demand and comfort. The application records these inputs so that results can be traced back to the assumptions used.
Where construction layers are entered, thermal transmittance is calculated from available material data. Component areas and climate data are used to estimate transmission losses. Ventilation is modelled from building volume and air-change assumptions. These calculations are intended for preliminary comparison rather than certification or regulatory assessment.
Compare options as a system
A renovation measure can affect other parts of the building. Additional insulation may change heat loss and surface temperatures; airtightness changes can make ventilation strategy more important; heating-system choices depend on the demand they are intended to serve. Comparing a whole-building record helps avoid treating isolated measures as complete solutions.
Energy-audit.eu can organise renovation-oriented recommendations and scenario questions around entered data. Cost, savings and payback information should always be treated as approximate planning information, not as a binding quotation or guaranteed result.
Use results responsibly
The most valuable result is often a better next question: which layer needs confirming, which area is uncertain, whether a ventilation review is needed, or which professional should be involved. Keep source documents with the project and update the assessment when better information becomes available.
The tool does not perform a site inspection, issue an energy-performance certificate or confirm compliance with local law. Use qualified advice for detailed design, moisture risk, procurement and statutory requirements.
Explore energy efficiency inputs
Build a preliminary record before comparing renovation options.
Start your building energy assessmentEnergy-audit.eu provides a preliminary digital building energy assessment and renovation-planning aid. Results depend on the information entered and simplified model assumptions. They do not replace a site survey, detailed moisture design, professional engineering advice, or a certified energy audit where one is required.