innmuring

Innmuring is a term used in architectural discourse to describe a method of creating interior partitions within existing buildings without altering the exterior shell. The practice yields enclosed rooms and acoustically isolated zones by inserting lightweight, removable wall assemblies inside the built fabric. The word is a compound of internal (or inside) and muring, an archaism meaning walling, and it is employed in discussions of adaptive reuse and space optimization.

Techniques typically rely on non-destructive partition systems—stud walls with gypsum board, mineral wool insulation, and fire-rated facings—that are anchored to existing floors and ceilings but designed to be reversible. In historic or heritage contexts, innmuring emphasizes compatibility with original materials, moisture management, and ventilation to avoid damage to the fabric. The approach allows reconfiguration of layouts as needs change while preserving exterior appearance.

Applications include hotels, offices, galleries, and residential buildings undergoing retrofit, where innmuring supports acoustic separation, thermal performance, and flexible programming. Proponents argue it offers rapid adaptation, reduced exterior interventions, and easier maintenance compared with full envelope renovations. Critics point to potential effects on historic character, higher upfront costs, and the need for careful integration with fire safety and HVAC systems.

Despite being relatively new, innmuring has produced a small but growing body of guideline publications and case studies as planners and conservators explore reversible interior partitioning as a design strategy within adaptive reuse.