How to insulate a wall internally at the boundary and not lose too much space?
When a wall stands at the plot boundary, adding a layer on the outside may be difficult. Internal insulation then requires a good balance of space and moisture. The full thickness of the build-up must be calculated, not just the core of the board. Particular attention is needed at windows, cross walls and the junction with the ceiling and floor. Check the actual course of the boundary and the situation of the building. Do not assume that the existing façade can be thickened at will. Formal requirements and the feasibility of external works are determined separately. The conditions of a specific property may affect the available solutions.

