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The individual renovation roadmap (iSFP) is a standardized energy consulting instrument for the energy-efficient modernization of residential buildings. It is prepared by qualified energy efficiency experts and shows property owners how a building can be improved step by step in terms of energy performance.
The iSFP analyzes the current energy condition of a building, identifies potential savings in energy demand and develops specific renovation recommendations on this basis. Measures can be presented either as a complete renovation or as coordinated individual steps.
The aim is to provide building owners with a clear, long-term basis for making decisions about energy-related investments.
Why is the individual renovation roadmap important?
Many existing buildings offer significant potential for energy savings. At the same time, owners often lack reliable information about which measures make sense and in what order they should be implemented.
The iSFP creates:
- transparency about the energy condition of a building
- prioritization of renovation measures
- guidance for long-term investment decisions
- a basis for step-by-step modernization
- better planning of costs and measures
- support when using funding programs
Especially for older buildings, the individual renovation roadmap helps to plan renovations strategically rather than reactively.
What does an iSFP include?
The individual renovation roadmap looks at the building as a whole and analyzes several areas.
Building envelope: Assessed elements include:
- external walls
- roof surfaces
- basement ceilings
- windows
- external doors
Building systems: Examined systems may include:
- heating systems
- domestic hot water generation
- ventilation systems
- control technology
Energy condition: The iSFP assesses the building’s current energy demand and shows potential improvements.
Recommended measures: For each recommended measure, typical effects are presented, for example:
- energy savings
- CO₂ reduction
- improvement of the energy standard
Renovation strategy: The roadmap shows which measures can be implemented together or in coordinated steps.
Typical measures in an iSFP
Depending on the condition of the building, different measures may be recommended.
Examples:
Optimization of the building envelope
- facade insulation
- roof insulation
- basement ceiling insulation
- window replacement
Modernization of building systems
- heating system modernization
- heat pumps
- ventilation systems
- hydraulic balancing
Use of renewable energy
- photovoltaics
- solar thermal systems
- combination of different systems
Common misconceptions about the iSFP
- "The iSFP makes renovation mandatory": No. The individual renovation roadmap is a recommendation, not an obligation.
- "The iSFP replaces planning": The roadmap identifies possible measures, but it does not replace detailed planning or execution planning.
- "An iSFP is only relevant for single-family homes": Multi-family buildings and other residential buildings can also benefit from an individual renovation roadmap.
- "An iSFP works without current building data": The quality of the recommendations depends directly on the quality of the underlying building data.
FAQ
What does iSFP mean?
iSFP stands for individual renovation roadmap. It is a standardized instrument for planning energy renovations in residential buildings.
Who prepares an individual renovation roadmap?
An iSFP is prepared by qualified energy efficiency experts who analyze the energy condition of a building and recommend suitable measures.
What are the benefits of an iSFP?
The renovation roadmap creates transparency about renovation potential, prioritizes measures and supports long-term investment decisions as a basis for assessing renovation costs.
Why is current building data important for an iSFP?
Precise building data enables a sound assessment of the building and increases the reliability of the recommended measures.