Future in Green
Sustainable core insulation of a historic urban villa from the 1920s
In October 2024, a demanding refurbishment project near Osnabrück was successfully completed: the retrofitted core insulation of a historic urban villa from the 1920s. The goal was to significantly improve the building’s energy efficiency without affecting its architectural character or valuable structural fabric. Particularly in buildings from this era, blow-in insulation presents a special challenge—making the choice of a high-performance yet sustainable insulation material all the more important.
High insulation performance and sustainability with Insute 25-pro
The building owner placed great importance on insulation quality, durability, and the use of resource-efficient materials. After detailed consultation, Insute 25-pro was selected—a modern blow-in insulation material with an excellent thermal conductivity of 0.028 W/mK.
This material combines high insulation performance with sustainability and is ideally suited for retrofitted core insulation of cavity wall constructions.
Noticeable improvement in indoor climate
Immediately after the insulation was installed, a significantly improved indoor climate was noticeable. The interior walls felt warmer, and heat loss was effectively reduced. This became particularly evident on cooler autumn days: rooms heated up faster and retained warmth for longer.
Core insulation thus makes an important contribution to reducing energy consumption and heating costs.
Additional protection against noise and moisture
In addition to its excellent thermal insulation properties, Insute 25-pro also offers effective sound insulation. The villa is located on a busy road—after insulating the cavity, external noise was significantly reduced, noticeably increasing living comfort.
Another key advantage is effective moisture protection
The material regulates moisture within the masonry, prevents mould formation, and protects the historic structure in the long term. This aspect is particularly crucial for older buildings in order to preserve value and ensure a healthy indoor climate.
Core insulation as the key to future-proof buildings
With the installation of core insulation using Insute 25-pro, an important step was taken towards greater energy efficiency, sustainability, and long-term preservation of the building fabric—fully in harmony with the historic architecture and without any intervention in the façade.
Sustainable building optimization through the cavity
The energy-efficient retrofitting of residential buildings is a central component for climate protection and the reduction of private energy costs. Core insulation is a particularly effective method for houses with double-leaf wall construction. In this process, the empty space between the inner wall and the outer facing brickwork is completely filled with insulation material.
This measure ensures that the heat stays where it is needed: inside the house. Because the existing facade structure remains completely untouched, this process is perfectly suited for architecturally demanding or heritage-listed buildings whose external appearance is to be preserved. The living space is not reduced in the process.
Highest performance with innovative material
When selecting the insulation material for core insulation, homeowners should make no compromises. The high-performance insulation material Insut, based on nano-foam, offers decisive advantages over classic materials. Thanks to its excellent thermal conductivity, it achieves outstanding insulation values even with very thin layers.
The fine particles have a high flowability, so they settle into every corner of the masonry and consistently prevent thermal bridges. In addition, this product is hydrophobic and does not absorb any moisture, which provides reliable protection against moisture damage and mold, while the construction remains completely breathable and vapor-permeable.
Economic advantages and government support
Carrying out this renovation measure is relatively cost-effective, as neither scaffolding nor extensive conversion work is required. Trained specialized companies usually only need a few hours to introduce the material through discreet drill holes.
Due to the rapid reduction in heating energy demand, the investment generally pays for itself within a few years. Additionally, you benefit from attractive government subsidies, which can be applied for as a grant or a low-interest loan. With optimized facade insulation, you noticeably increase living comfort, improve sound insulation, and make a permanent, active contribution to reducing your building's CO2 emissions.
Are you planning a similar project?
Whether it’s an older building, a historic structure, or an existing building with high energy efficiency requirements—we can assist you with the analysis, planning, and installation of modern blown-in insulation.
Let’s get your project started
We’d be happy to help you out—no strings attached
sales@sumteq.de
+49 2421 99012 0

