Private semi-detached villa in Milan

The Building

Building post-intervention

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Private villa built in 1927 in a residential area of Milan called Maggiolina that preserves architectures of a certain importance or interesting in their peculiarity.

The Solution

Solution post-intervention

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What is the Solution?

The solution adopted consists in blowing insulating material (ISOFOR) from the outside . The area covered by the insulation is approximately 78 square metres, for a total of 14 cubic metres of injected insulating foam.

Why Does it work?

The solution is particularly advantageous because it allows us to improve the building's energy performance without altering its appearance. In fact, compared to the previous year, we saved 110 cubic metres of methane gas out of a total annual consumption of 600 cubic metres. The intervention is particularly quick and economical: the work was carried out in two days and the total cost (material + labour) was € 3,900.

PROS

fast realisation solution
economic solution
improvement of the building's energy performance
non-alteration of the building's overall appearance

CONS

need to drill holes for insufflating insulation material
it can be implemented if there is an ait cavity to be filled in the existing stratigraphy

Insulation material

ISOFOR, Expanded urea resin

Insulation thickness

180

Thermal conductivity

0.035

Health issue

information not available

Technical drawings

Additional documentation

Installation Method

The insulation was installed from the outside using scaffolding, drilling 30 mm holes in the existing wall in order to inject Isofor insulation, based on expanded urea resin, into the existing 18 cm cavity. Before injecting the product, the existing cavity was examined using a probe. The insulation was blown in using a pump. The holes were then sealed pending final painting.

Moisture Management and Technical Compatibility

information not available

Airtightness

information not available