Global energy renovation in Somme (80)
A global energy renovation in Somme (80) involves assessing the home as a whole before coordinating several areas of work. This approach makes it possible to consider the interactions between the building envelope, heating, ventilation and hot water production. In a département where terraced brick houses, longhouses, isolated farmhouses and post-war reconstruction buildings coexist, requirements vary considerably from one property to another. The project must therefore start from the actual condition of the walls, existing equipment, usage and any moisture problems.
Tip: have your energy performance certificate (DPE) and energy bills to hand for a more accurate estimate.
Why carry out a global energy renovation in Somme
Solid brick walls, lofts previously insulated with materials that have become insufficient over time and the large volumes of rural homes can create several sources of heat loss at the same time. Treating just one area without examining the others may simply shift the imbalance elsewhere. A comprehensive approach makes it possible to prioritise the work and determine how the envelope, heating systems and air renewal should evolve together.
Moisture also requires particular attention in Somme. Rising damp, water penetration through an exposed façade and indoor condensation do not require the same solutions. Before increasing the airtightness of the property, the source of the problem needs to be understood and suitable air renewal planned. This precaution is particularly important in the valley areas, where moisture management directly affects the durability of the work and the comfort achieved.
What global energy renovation includes
Assessment of the home’s energy condition
Global energy renovation begins with a complete assessment of the building: wall construction, roof, floors, windows, heating systems, hot water production and ventilation. This analysis helps identify which areas should be addressed first and which changes depend on another intervention being completed beforehand.
Coordinated treatment of the building envelope
Not all building elements have the same characteristics. A terraced brick house does not have the same exposed surfaces as an isolated rural longhouse. The project may involve the loft, roof, walls, floors or windows. The solutions must remain compatible with the existing materials and with the way moisture behaves within the building fabric.
Adapting the heating system
The sizing of new equipment depends on the remaining heat loss after the building has been improved. Replacing the heat generator before determining future requirements may result in a poorly suited solution. In rural areas not connected to the gas network, the current configuration, existing heat emitters and the technical possibilities of the property are assessed before defining the scenario.
Ventilation and indoor air quality
Improving insulation and limiting uncontrolled air leakage changes the way the home operates. Air renewal should therefore be incorporated into the programme rather than added after the other work. The aim is to remove moisture generated indoors and maintain air circulation that is compatible with the new characteristics of the building envelope.
Sequencing the different areas of work
A comprehensive project also depends on the correct sequencing of interventions. A damp wall should be examined before it is insulated; heating requirements are reassessed once the thermal improvements have been defined; ventilation accompanies changes to airtightness. This order helps prevent decisions made separately from becoming incompatible later in the project.
Typical situations in Somme
Terraced brick town house
The side walls may be protected by neighbouring homes while the front façade, rear of the building and roof remain more exposed. The programme therefore takes this distribution of heat loss into account, along with the actual composition of the walls and the available intervention options, without assuming that every wall requires the same treatment.
Longhouse or farmhouse in a rural area
A detached property is more directly exposed to wind and may have a large area to heat. The lack of a gas network in many areas also makes it necessary to examine the existing heating system carefully. Improvements to the building envelope are considered before selecting equipment suited to the building’s future requirements.
Post-war reconstruction property
In some towns, two buildings with a similar appearance may conceal very different wall constructions. Materials and construction methods varied between sites. A coherent renovation therefore relies on observing the existing building and, where necessary, carrying out additional checks rather than relying solely on the stated construction period.
Grants and funding
Depending on the nature of the project and the conditions applying to the home and household, a comprehensive renovation may be eligible for MaPrimeRénov’, CEE (energy savings certificates), reduced VAT or éco-PTZ (zero-interest eco-loan). Some grants notably require the use of an RGE-certified professional for the relevant categories of work. The criteria should be checked according to the chosen route and the planned interventions.
You can contact us to present your project and clarify the areas of work being considered. To check the rules for public schemes and identify the route that corresponds to your situation, you can also consult the official France Rénov’ website. Funding procedures should be coordinated with the technical content of the programme before the relevant work is commissioned.
How we work
Assessment of the situation
We gather the characteristics of the property, the equipment in place, the comfort issues identified and the aims of the project.
Assessment of the building
The walls, loft, windows, heating, ventilation and any signs of moisture are considered as a whole.
Setting priorities
The interventions are organised according to their interactions to avoid treating separately areas of work that depend on one another.
Building the programme
The proposed solutions are coordinated with the characteristics of the building and the technical conditions required for their implementation.
Organising the work
The order of the different interventions is defined to maintain continuity between improvements to the building envelope, equipment and air renewal.
Our other services in Somme
A project may also require a heat pump in Somme, insulation in Somme, a thermodynamic water heater in Somme or an energy audit in Somme. You can also explore our approach to energy renovation in Somme, our page dedicated to Hauts-de-France and the information dedicated to energy renovation in Amiens.
Frequently asked questions
Should moisture problems be dealt with before starting a global renovation?
Abnormal moisture should be understood before affected walls are covered or insulated. Rising damp, water penetration and condensation have different causes. The programme should therefore identify the source and provide a solution compatible with the building before significantly changing its insulation or airtightness.
Should a brick house be insulated in the same way everywhere?
No. The construction of the wall, its exposure, its condition, any moisture present and external constraints all influence the possible solution. In a terraced house, some walls are also less exposed than others. The approach is therefore to assess each area before deciding on the appropriate treatment.
Why review the heating system after assessing the insulation?
Improving the building envelope changes the property’s heating requirements. The choice and sizing of the heat generator should therefore take account of the future condition of the home rather than only the consumption recorded before the work. This approach is particularly useful for large rural properties and homes using an older heating system.
Is ventilation part of a complete energy renovation?
It should be assessed whenever work reduces uncontrolled air leakage. A better insulated and more airtight home requires controlled air renewal to remove water vapour generated indoors. Ventilation is therefore considered in relation to the building envelope and the other planned changes.
Let’s talk about your project
Tell us about your home and your goals: we help you prioritise the works and identify the grants worth looking into.