Energy is expensive, and it’s getting more so. A good enough reason to start saving where it really counts: the heating. The German energy agency Dena has calculated that modern, tight windows and an insulated envelope, as well as façade’s efficient heating technology, drastically reduce energy consumption. Savings in heating costs can reach a five digit sum in ten to fifteen years! Merely replacing old windows with modern, insulated ALU & PVC systems, or replacing classic with modern ventilated or glass façade will make perceptible savings in your heating costs.
Windows make up a good third of the façade. They define how much heat stays indoors. In a single-family home, for instance, the heat loss through the windows can be as high as 40% of the total heating energy. Old windows let through the most energy losses, which are about four to ten times higher than through windows with thermal insulation glass. The general rule: Windows/exterior doors installed before 1995 no longer fulfil the growing requirements for energy savings and passive houses. There is, therefore, a huge savings potential on this aspect.
How much energy can a window save? Can this performance be compared?
Yes, it can: The so called U-value specifies how much heat energy is lost to the outside. You only need to remember: The smaller the U-value, the better the thermal insulation. And, accordingly, the greater the savings in energy costs.
Renovating a building with new windows, or building a new one with energy efficient windows, doors and façades installed, therefore pays off in just a few years. The return on investment is accelerated by lower energy costs, and the quality of living rises together with the value of the property. Architects and planners, thus, fulfil not only the legal requirements, but can also take advantage of today’s subsidy programmes for the developer. It is important to know: The government provides funds and low interest loans for the required investments – attractive incentives that contribute to considerable cuts in CO₂ emissions.
In all cases, new windows should be installed by a qualified window manufacturer. Yet not only the correct installation is important, but also the profile design, the transition from the profile to the glass, and the glazing type. Aluks, as your specialised window manufacturer will gladly advise you on which modern & thermally insulated windows are ideal for the building fabric of your home. This is well worth your while, also in financial terms: Money spent on skilled work services can be deducted as tax offsets. Aluks svetuje, kaj so moderna in toplotno izolirana okna, ki so idealna za vrsto materiala, v katerem je vaš dom.