Thermal insulation

Energy weak points of your building

No matter whether it is freezing cold outside in winter or baking hot in summer: inside our house we want a consistent, pleasant temperature all year round. To achieve this and at the same time reduce heating and air conditioning cost, you should make sure that your house is well-insulated. Only houses with an effective insulation stay pleasantly warm inside, even when it is cold outside. According to studies carried out by the Energieberatung der Verbraucherzentrale Bundesverband e. V., a German consumer association, insufficient insulation is the most common weak point of a building.

More than a quarter of the heat (or cold) is lost through the windows. For this reason, more and more homeowners opt to replace their windows, and house builders choose highly thermally insulated windows, including systems meeting passive house standards. The installation of new, thermally insulated windows already ranks second among energy modernisation measures.

Advantages of thermal insulation

Would you like to replace your old windows with new windows with a higher thermal efficiency, but you are not sure how much you can save with new windows? Let’s say your home is like this:

• a detached single-family house near Frankfurt/M., with two full storeys
• year of construction between 1979 and 1983
• approx. living space = 150 m²
• oil heating, the boiler has been replaced recently
• annual consumption approx. 3,150 litres of oil (incl. hot water)
• old windows with single glazing

If you replace your windows and install the passive-house certified windows heroal W 77 PH, you can enjoy numerous advantages. With the passive house windows from heroal, you already now meet the thermal insulation requirements of tomorrow, save money today, and at the same time do something good for the environment since you save a lot of energy. Before-and-after comparison:

• your annual energy consumption is reduced from 3,150 litres to 2,152 litres
• your annual C0² emissions are reduced from 10.4 t to 7.1 t
• for these savings, you could fly 11,400 km, or drive 15,700 km by car, 82,500 km by train, or 110,000 km by bus

Protection from the summer heat

What you can do against the summer heat, beyond insulation

Outside sun protection

Outside sun protection helps to prevent the heat from outside getting inside. heroal offers you different solutions to enable you to find the product that suits your requirements best.

Fresh air

Keep windows and doors closed during the day; to let in fresh air, only open them in the late evening, at night or in the early morning. This will allow for cool, fresh air inside.