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Blow-in insulation is a technique that provides thermal insulation for buildings by filling existing cavities between walls, accessible and inaccessible attics, and roof cavities with a specific insulating material. At Bioisolare, we perform insulation work using the Bioisolare-S system, which involves blowing in Aerosilex S (expanded silicate beads).   The term “blow-in insulation” refers to the fact that the material is inserted by blowing (insufflating) it into the selected area, creating a breathable thermal barrier for the building. The material is forced into the space under pressure using a specialized system. Insulation Installation Timelines Insulation installation via blowing is highly advantageous because it can be completed very quickly by expert companies like Bioisolare. Just consider that a medium-sized apartment (80–120 square meters of floor space) can be insulated in a single workday. We can proceed with the thermal insulation of attics or wall cavities in both homes undergoing renovation and occupied homes, without causing any inconvenience to the residents. When can blow-in insulation be performed? Blow-in insulation can be performed if there is a cavity in the exterior walls: the material is inserted through holes drilled at the top of the walls from the inside or outside, depending on the needs and preferences of the home’s occupants. In addition to blowing insulation into cavity walls, as mentioned, the work can also be performed in accessible and inaccessible attics. A technician will physically enter the attic through an internal hatch or existing skylight, or by cutting a hole in the roof, which will be sealed once the work is complete. Furthermore, for the insulation of new buildings, Aerosilex-S can be blown in during roof installation, creating a layer of material that immediately improves the building’s insulation properties. Durability and Long-Term Stability The insulation materials that remain most stable over time are granular materials, such as Aerosilex, expanded silicate beads, because they do not deform in the presence of moisture, water, or weight. Consider, for example, a glass filled with sand: if it is not knocked over, the glass will remain full and in the same condition forever. Aerosilex is a safe material; it does not burn and poses no risk of ignition even if placed near a chimney. It offers a good balance between mass (weight) and insulating capacity, making it ideal for thermal insulation in the summer. The installed thickness does not decrease over time, and its composition contains no harmful substances. The insulation performance achieved through the blow-in technique using Aerosilex S – Expanded Silicate Beads – is therefore guaranteed for several decades: at Bioisolare, we use only high-quality insulation material and carry out the work with experience and expertise. Find out how much you can save. Request a quote

The blow-in insulation technique involves filling spaces such as attics and wall cavities—that is, the empty areas between solid structural elements—with natural insulation material. It can be applied from both the inside and the outside. Insulating your home using the blow-in method is cost-effective, but it must be performed by qualified technicians, such as the professionals at Bioisolare, using products with specific technical and durability characteristics, such as Aerosilex Expanded Silicate Beads. To insert the material into wall cavities via blow-in insulation, holes are drilled in the upper part of the building’s exterior walls. To insert it into attics, access is gained through existing hatches or skylights; if none are present, an opening is created from the outside of the roof. Blow-in insulation: the advantages Let’s now look at some reasons to insulate your home with Aerosilex—expanded silicate beads from the Bioisolare S system: The material is distributed perfectly within the cavities and provides complete insulation. The process is minimally invasive: even when performed from the outside, it does not alter the appearance of the facade. It is eco-friendly thanks to the material used (Aerosilex) and because it helps reduce CO2 emissions. It is an insulation method that eliminates heat loss, reduces condensation, and lowers humidity. It also serves as an excellent acoustic insulator. Installation is quick: the work can be completed in a single day. The material is also certified for green building; it acts as a fire barrier as it is inert and fire-resistant (Class A1), is resistant to mold, and is antibacterial. The Bioisolare S system can be used via blow-in insulation on both new and older buildings (from the 1950s and 1970s), as well as for wooden structures and buildings still under construction. Blow-in insulation is cost-effective: efficient and affordable Thermal insulation via blow-in is effective because it reduces energy costs for heating and cooling buildings. It also eliminates heat loss and condensation while enhancing the comfort of your home. Furthermore, blow-in insulation requires a lower investment compared to other types of insulation. How long does blown-in insulation last? This insulation system lasts practically as long as the home itself and requires no maintenance. Over time, in fact, the thickness of the material remains stable: it does not decrease but stays the same, ensuring perfect insulation both in summer and winter, forever. Request a quote Find out how much you can save