Roof renovation in Marche-en-Famenne

Roof Insulation: Your First Lever for Savings

Renovating your roof without insulating it at the same time is an economic mistake. In Wallonia, insulation is the most subsidized item for energy renovation and, from a technical standpoint, the most profitable in the short term.

We use two main methods:

• Internal insulation: installation of mineral wool or wood fiber between the rafters, with a meticulously sealed vapor barrier. An economical technique, suitable for projects without complete roof removal.
• Sarking (external insulation): installation of rigid insulating panels on the framework, under the covering. This is the most efficient solution: it eliminates all thermal bridges and allows for very high insulation levels without reducing the habitable volume under the eaves.

Quality insulation also protects your comfort in summer by limiting overheating in rooms under the roofs. To calculate your potential savings, consult our tool: roof insulation prices in Belgium. By combining roof renovation and insulation, you can access the most generous Walloon grants.

Roofing and Finishes: The Art of Watertight Detail

Valleys, Ridges, and Flashings: Well-Treated Critical Points

A roof is only watertight if its roofing is impeccable. Zinc is the reference material for channeling rainwater. We custom-make cornices, gutters, and downspouts. Chimney connections are precisely shaped to eliminate any risk of infiltration at these critical points. The valleys — intersections between two roof slopes — and the ridges — protruding edges between two slopes — are areas of water concentration and mechanical tension: our roofers treat them with profiled and welded edge zincs for lasting watertightness, regardless of the complexity of the roof.

Under-Roof Ventilation and Site Cleanliness

Under-roof ventilation is treated with the same care. A breathing roof is a roof whose framework ages well. We install ventilation hatches and ventilated ridge closures to ensure optimal air circulation under the slates or tiles.

At the end of each workday, our teams ensure the cleanliness of the surroundings: removal of debris, cleaning of gutters, restoration of the garden.

Your Roofing Partner in Marche

Our team from Marche operates throughout the greater Marche area — Waha, Marloie, Aye, Hargimont, On — as well as in neighboring municipalities: Rochefort, Ciney, Hotton, and Nassogne. We know the specifics of Ardennes construction and we commit to careful implementation, from the framework to the last slate.

Common issues and our solutions

Slipping tiles after freeze-thaw cycles without checking the framework

In Famenne, the repeated freeze-thaw cycles between November and March put stress on the tile fastening hooks, weakening them. Many homeowners replace fallen tiles without inspecting the underlying framework — and encounter the same problem two winters later. We systematically check the condition of the supporting wood before any reinstallation to address the cause rather than the symptoms.

Detached chimney flashing — source of invisible infiltration to ceilings

The zinc flashing that ensures the waterproofing between the chimney and the roof is one of the most vulnerable points of an old roof. When it becomes detached due to freezing or thermal expansion, water slowly infiltrates the masonry and only appears on the ceilings months later. During every roofing project, we custom reshape the flashing in patinated zinc to eliminate this risk at the source.

Missing under-roofing on old Famenne house — condensation in the framework

A large number of houses built before 1980 in Marche-en-Famenne, Aye, or Hargimont lack any under-roofing membrane. In winter, the water vapor rising from the house condenses directly on the rafters, promoting the growth of mold and wood rot over time. Installing a breathable film or Sarking during the roof renovation permanently resolves this issue while significantly improving the energy performance of the home.

Do you have a roofing renovation project in Marche-en-Famenne?

Your roof is your primary protection — slates, tiles, or steel sheets, it must withstand the winters of Famenne. Contact Avenir Rénovations today for a complete technical inspection of your roof and a detailed free estimate, item by item.