RETROFIT
RETROFIT – Modernisation without Construction Work
Upgrading Existing Buildings to a New Climate System
Retrofit stands for the modernisation of older buildings, residential units, commercial spaces and industrial halls – without structural modifications and without conventional building technology such as heat pumps, air-conditioning units or refrigerants.
The modernisation is carried out using the Sí-Cassette, a modular interior element that is simply mounted onto a wall or ceiling.
It connects to SíAir and SíWater, forming the interior module for heating, cooling and climatic stabilisation within the complete Sí-Climate System.
Retrofit means:
An existing building is upgraded quickly, cleanly and reversibly to a sustainable climate system.
Why Retrofit?
1. No construction work – immediately ready for use
Walls remain closed, no pipes are opened, and the installation is dust-free, quiet and interruption-free.
Ideal for renovations during ongoing operations, in existing buildings or under heritage protection.
2. Suitable for residential, commercial and industrial buildings
Whether apartment, office, shop floor, storage facility or agricultural hall – Retrofit enables the same functions everywhere:
heating, cooling and climatic stabilisation.
3. Energy-efficient and low-maintenance
The installation requires no pressure technology, no mechanical components and no refrigerants.
The system therefore remains extremely reliable and almost maintenance-free.
4. Fast implementation through modular technology
The Sí-Cassette is mounted using a screw-based modular system and connected through only a few interfaces.
This opens up entirely new possibilities for modernisation in buildings of all types.
Applications
The Sí-Cassette
Residential & Existing Buildings
Modernisation without intervention in the structure, improved indoor climate in older buildings, heating and cooling in buildings without suitable existing technology.
Commercial & Industrial Halls
Stabilisation of temperature and air humidity, cooling or tempering of large rooms, modernisation for food, wine, olive, fish, fruit or agricultural operations.
Tourism, Gastronomy & Hospitality
Improved indoor climate, energy savings, retrofittable solution for kitchens, storage areas and seasonal buildings.
Sensitive Objects & Heritage Sites
Reversible installation without affecting protected structures, fully removable at any time.
The Product: The Sí-Cassette
The Sí-Cassette is the interior module for Retrofit
The Sí-Cassette is the interior module for Retrofit – a preconfigured, modular element that connects an existing building directly to the Sí-Climate System.
Through SíAir and SíWater, the building receives all functions of a complete climate system:
heating, cooling and climatic stabilisation with minimal technical effort.
All required steps for implementation follow a detailed description, enabling the installation to be carried out transparently and reproducibly – without disclosing internal development details.
If you are planning a renovation or wish to convert an existing building to a sustainable climate system, we are happy to advise you on Retrofit and the application of the Sí-Cassette.