Exterior insulation: wrap the building without losing a square metre

Thermal insulation: treating the whole building

Fitted on the outside, the insulation runs continuously over walls, floor edges and internal wall junctions, exactly where interior insulation is interrupted. The walls stay on the warm side, storing heat in winter and releasing coolness in summer, which clearly improves comfort and can raise the DPE rating.

• Rendered systems on polystyrene, rock wool or wood fibre
• Ventilated cladding (timber, composite, fibre cement)
• Window reveals, sills, parapets and plinths properly detailed
• Coordinated with new windows and ventilation

Acoustic insulation: less noise from the street

Exterior insulation in rock wool or wood fibre, combined with high-performance windows and acoustic air vents, reduces outside noise from traffic and neighbours. We also choose the insulation and finish according to how exposed the façade is to noise.

Permissions, co-ownership and the look of the façade

ITE changes the outside of the building: a prior declaration of works is required, and the approval of the Architecte des Bâtiments de France is needed near listed monuments or in protected areas. In a co-owned building, façade work is voted at the general meeting.

Haussmann façades in dressed stone or with mouldings are generally not suited to ITE; it works well for houses, gable walls, courtyard façades and more recent buildings. We prepare the documents needed for the vote or the permission.