Frequently Asked Questions

Check First is a practical approach to EPBD transposition guidance. It means requiring a building performance and low-temperature readiness check before major heating, renovation, funding or electrification decisions are made. For national policymakers, the approach can be embedded in national law and implementation measures through EPCs, renovation passports, one-stop shops, minimum energy performance standards, heating-system inspections, public support schemes and National Building Renovation Plans. The aim is not to create a new policy framework, but to make existing EPBD tools work in the right order. A Check First approach helps Member States identify avoidable energy demand, target the worst-performing buildings, improve heat pump readiness and reduce pressure on electricity grids. It also gives energy professionals a clearer assessment route and gives industry a stronger, evidence-based case for demand reduction before system expansion.

The EPBD requires Member States to set minimum energy performance requirements that aim for at least cost-optimal levels. In simple terms, this means national requirements should balance investment costs with energy savings and wider performance benefits over the life of the building. For policymakers, the cost-optimal renovation methodology should not be treated only as a calculation exercise. It should help determine which packages of measures deliver durable demand reduction, lower system pressure and good value for households and public budgets. Building-envelope measures such as insulation are central because they reduce energy demand permanently and improve the performance of heating and cooling systems. The Check First approach makes cost-optimality actionable. By assessing building performance and low-temperature readiness before funding or heating decisions, Member States can use cost-optimal calculations to design renovation pathways, funding rules and standards that reduce avoidable demand before new energy infrastructure is added.

A worst-performing buildings renovation strategy should use the EPBD focus on the poorest-performing stock as the starting point for demand reduction, affordability and energy-system planning. These buildings usually have high heat loss, higher bills and greater exposure to price volatility, so they offer some of the strongest opportunities for cost-effective renovation. For non-residential buildings, Member States must set performance thresholds that trigger renovation of the worst-performing segments over time. For residential buildings, Member States must reduce average primary energy use and ensure that a significant share of the improvement comes from renovating the worst-performing buildings. Check First turns these obligations into a delivery and data-creation approach. By linking low-temperature readiness checks with EPCs, renovation passports and digital building logbooks, Member States can identify heat-loss priorities, recommend the next best step, target public support and generate better data for National Building Renovation Plans, funding design and grid planning.

EPCs and renovation passports work best when they are linked together. An EPC provides the starting point by identifying the current energy performance of a building and highlighting major sources of heat loss. A renovation passport then turns that information into a step-by-step roadmap for staged renovation. This link is a core policy ask for EPBD implementation. The EPC should not stop at a rating. It should direct building owners towards a renovation passport, a one-stop shop or a low-temperature readiness tool where deeper works or clean heating decisions are being considered. A Check First approach connects EPCs, renovation passports and digital building logbooks so that each renovation step prepares the building for the next: performance check, demand reduction, low-temperature readiness, clean heating and verified improvement.

Minimum energy performance standards, or MEPS, create a regulatory pathway for upgrading the worst-performing buildings. By setting performance thresholds and compliance dates, they give building owners, investors, public authorities and supply chains clearer signals about future renovation demand. For the retrofit market, MEPS are important because they turn energy performance from a voluntary improvement into a structured policy requirement. Buildings that fall below national thresholds will need advice, finance and practical renovation measures to improve their performance. A Check First approach helps Member States get the most societal, economic and resilience benefits from MEPS by focusing on real, calculated building performance. Because many worst-performing buildings lose too much heat through the envelope, MEPS should support the right sequence: assess first, reduce avoidable demand, then electrify efficiently.

Member States can make clean heat funding sequence-aware by requiring a building performance and low-temperature readiness check before public support is approved for major heating upgrades, heat pump grants or district heating connections. The check should classify buildings into three simple categories: ready for clean heating, ready after targeted improvements, or prepare first. Buildings that are ready can proceed directly. Buildings needing targeted improvements can receive combined support for insulation, airtightness, radiator upgrades and clean heating. Buildings with high avoidable heat loss should be directed first towards renovation advice and staged renovation support. This approach helps public money reward better sequencing, not isolated replacements. It can reduce the risk of oversized systems, unnecessary running costs and additional pressure on electricity grids.

A home energy assessment checklist should start with the building’s energy performance. The first step is to assess the building envelope: roof or loft, walls, floors, windows, doors, airtightness and ventilation. These elements determine how much heat the building loses and whether it can work efficiently with low-temperature heating. The checklist should then record the heating system, heat emitters, hot water, controls, ventilation and any renewables. For policymakers and energy professionals, this order matters because it helps identify avoidable heat loss before public funding, heat pump grants or renovation advice are finalised. A Check First assessment should answer three questions: is the building ready, ready after targeted improvements, or should it reduce heat loss first?

Retrofit sequencing should follow a simple principle: assess the building first, reduce avoidable heat demand where needed, then size and support clean heating and renewable technologies. In practice, this means starting with an EPC, audit or building performance assessment, followed by insulation, airtightness, ventilation and other envelope improvements where they are needed. Heating system replacement, heat pumps, district heating connections, solar PV and controls should then be planned on the basis of the building’s verified or improved performance. This does not mean every building must complete a full deep renovation before any heating upgrade. Some buildings will already be ready, while others may only need targeted improvements. The key is to avoid isolated investments that lock in oversized systems, unnecessary grid pressure or avoidable future costs.

An EPC and heat pump readiness checklist should combine building performance, heat-loss and heating-system information. It should include the building envelope, roof or loft insulation, walls, floors, windows, doors, airtightness, ventilation, heating distribution, radiator capacity, controls, domestic hot water and the flow temperature required to heat the building comfortably. For policymakers, the checklist should not only describe the current building. It should also recommend the next step: ready for clean heating, ready after targeted improvements, or prepare first through envelope upgrades or a staged renovation plan. Adding heat pump readiness to EPCs, supported by a low-temperature readiness tool or similar assessment method, can make EPCs more useful for households, one-stop shops, installers and funding bodies. It turns the EPC from a compliance document into a practical Check First gateway.

To check if a home is ready for a heat pump, assess both the building envelope and the heating system. The most important factors are heat loss through the roof, walls, floors, windows and air leakage, as well as ventilation, radiator capacity, heating controls and the flow temperature needed to keep rooms comfortable.

A heat pump works best when the building can be heated at lower flow temperatures. If the building loses too much heat, the heat pump may need to be larger, more expensive and less efficient. In some cases, replacing critical radiators or improving controls may be enough. In others, insulation or airtightness measures should come first or be included in the same renovation package.

A practical readiness check should use the Low-Temperature Readiness Tool, or a comparable national tool, to classify the building as ready, ready after targeted improvements, or prepare first. This gives installers, one-stop shops and funding bodies a consistent basis for advice and support.

One-stop shops can make retrofit sequencing practical for households, apartment blocks, social housing providers and local authorities. They can help users understand their EPC, identify heat-loss problems, decide whether the building is ready for clean heating, and connect the renovation plan to finance and qualified professionals.

A Check First one-stop shop should start with the building’s performance data, then guide the owner towards the right route: targeted improvements, staged renovation, heat pump readiness, clean heating support or a deeper renovation passport.

This is especially important because building owners often receive fragmented advice from different actors. One-stop shops can translate technical assessments into a coherent sequence, helping avoid lock-in, duplicated works and poorly sized heating systems.

The EPBD strengthens the long-term policy case for insulation because it requires Member States to improve the performance of existing buildings, especially the worst-performing stock. National Building Renovation Plans, minimum energy performance standards, cost-optimal requirements, EPCs, renovation passports and public funding schemes will all shape renovation demand.

For EURIMA member companies, the key message is not simply that the EPBD creates more renovation activity. It is that successful EPBD implementation depends on reducing avoidable energy demand before clean heating and electrification investments are scaled up.

Insulation is one of the main measures that makes this possible. It reduces heat loss, improves comfort, supports low-temperature heating and can help make heat pump deployment more cost-effective. This gives the insulation sector a strong policy, market and system-efficiency argument.

The return on investment of insulation should be assessed across the full lifetime of the building, not only through short-term payback. Insulation reduces heat loss permanently, lowers energy demand, improves comfort and can reduce the size, installation cost and running cost of future heating and cooling systems.

For households, the benefits can include lower bills, better indoor comfort and reduced exposure to energy price volatility. For Europe, insulation can also reduce peak demand, support electrification and improve the cost-effectiveness of public renovation funding. For energy professionals, it helps create better-performing buildings that are easier to heat efficiently.

The strongest ROI case is therefore not insulation versus heat pumps. It is insulation as an enabling measure that helps clean heating systems work better, at lower system cost.

Building insulation reduces pressure on electricity grids by lowering the amount of energy needed to heat and cool buildings, especially during peak periods. This matters because Europe is electrifying heating, transport and industry at the same time. If building demand remains high, electrification can require more grid capacity, more generation and higher public and private investment.

Better insulated buildings lose heat more slowly in winter and gain heat more slowly during heatwaves. That reduces peak heating and cooling demand, makes clean heating easier to size correctly and can free electricity capacity for other sectors.

For policymakers, insulation should therefore be treated as part of energy-system planning, not only as a household energy-saving measure. It is a demand-side infrastructure measure.