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Fire Separation in Office-to-Residential Conversions

In recent years, the landscape of urban development has seen a significant shift. As remote work becomes more prevalent and companies reassess their need for large office spaces, a new trend is emerging; Office-to-Residential Conversions. This innovative approach to urban redevelopment is not only a solution to the growing demand for residential properties but also a sustainable way to repurpose underutilized office buildings.


A new issue arises when converting a glass façade office tower to residential use: the requirement for fire separation between residential units, which may not have been necessary when the spaces were occupied as offices.


Fire-rated partitions are essential for preventing the spread of fire and smoke, giving occupants more time to evacuate safely and minimizing property damage. When extending partitions to glass facades, it is crucial to use materials that meet local building code, can maintain their integrity, and provide a barrier against fire.


This is where Mull It Over’s fire-rated solutions come into play. Mull It Over offers fire-rated trim caps that encapsulate the mullion, extending the fire rating from the partition to the glass. These trims are designed to integrate seamlessly with glass facades, improving the sound transmission ratings and providing 1- or 2-hour fire ratings where necessary.

  • Mull It Over products are rigorously tested and certified to provide excellent fire resistance.

  • The sleek design of Mull It Over trims allow for seamless integration with glass facades.

  • Mull it Over trims are versatile and can be used in various settings, including commercial buildings, offices, and residential spaces.

  • The trims can be installed during initial construction, during a retrofit, or even after occupancy.

Office-to-Residential conversions are a great use of buildings that already occupy our cities. However, safety must always be a priority. Reach out to a member of our team to see if Mull it Over trims are a good fit for your project.


*Contact your local authority to ensure compliance with all relevant building codes and regulations.

CAD drawings, Revit files, and Specifications can be found here.





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