As a homeowner, you want the highest possible energy savings. For existing properties, you can receive attractive funding from KfW under the KfW85 program, even for houses with higher energy requirements. Our experts are very familiar with these and other standards and explain here how you can specifically promote your energy-efficient house. KfW85 and the […]
The Energy Saving Ordinance - EnEV - sets binding standards with regard to energy efficiency. Here, construction methods such as insulation and building services come into play, but also the electricity mix with regard to the energy balance. In addition, building owners are required to maintain an energy certificate. Find out about the background and provisions of the EnEV 2014 in this article.
Every builder is obliged to keep an energy certificate for the new house. The energy certificate must already be submitted with the building application for the building permit - after completion of the building it must be checked and, if necessary, updated. be adjusted. You will find all information about the requirement certificate, consumer certificate, who issues energy certificates, the obligations of the building owner and the costs incurred in this article.
Large, modern windows architecturally enhance any house. In addition to aesthetic aspects, windows are indispensable as an important source of light and fresh air - but they are also particularly appealing to burglars. Find out in this article about the best models and latest trends to the necessary safety precautions.
Ventilation systems are especially important for houses with sophisticated insulation. They provide good air, preserve the building fabric and create a good living environment for allergy sufferers. In addition, ventilation systems with heat recovery make ecological sense - at the same time they are easy on the wallet, as heating costs are much lower. Find out about all aspects of centralized and decentralized ventilation systems with or without heat recovery in this article.
With solar thermal energy, solar energy can be used for sustainable hot water preparation and, to a lesser extent, for heating. Find out in this article about the benefits of solar thermal energy as a sustainable element for the energy balance.
With the aid of the Kreditanstalt für Wiederaufbau (KfW), the state promotes various public concerns, including housing construction. On the one hand, builders benefit from state subsidies such as the child benefit, on the other hand they can take out loans for energy-efficient construction.
Of course it is annoying to pay more with your own electricity provider than with the competition. Too attractive offers often have a catch. In this article, we explain which factors you should definitely pay attention to when comparing prices from different electricity providers.
In this article, we provide information on what you need to pay particular attention to when building an ecological and sustainable house, whether providers really implement the advertised ecological standard and how you can save costs by taking the initiative in building a house in view of the higher investment in ecology and sustainability.
The idea for the series production of active houses came from the B10 research project. The sustainably built active houses are now available in the cheaper 700 series and the high-quality 800 series. In this article, we explain how the construction of an active house works and what costs builders have to reckon with.
In order to meet the requirements of the EnEV and save energy at the same time, you as the builder have to decide on a suitable insulation variant. The most widespread are thermal insulation composite systems – better known as ETICS. Here you can find out the advantages and disadvantages of this form of insulation […]
The KfW Efficiency House 40 Plus is a classification for the energy efficiency of new buildings, which is accompanied by financial support options from the Reconstruction Loan Corporation (KfW). The requirements here are on the one hand the reduction of the primary energy requirement of the new building by 60% compared to an EnEV reference building and the equipment with a so-called "Plus Package", which includes various structural requirements for energy efficiency.
KfW 70, 55, 40 and 40 Plus provide information about the standards for new energy-efficient houses. This article sheds light on their requirements, costs, and price differences.
In this article, we will show you how you can take energy consumption into account and minimize it as early as the planning phase in order to save life cycle costs in the long term.
The purchase of a photovoltaic system has a positive effect on the energy balance of your house and is therefore becoming more and more popular among property owners. However, there are significant differences in the far-reaching offer. This article tells you what to consider before you buy.
The additional costs when building a house when you decide on a passive house are mainly made up of three factors: Insulation, heating and ventilation drive up the construction costs. We explain why these three measures are so important and what benefits you can enjoy from them.
The building material clay ensures an ideal indoor climate. In addition, clay is environmentally friendly, thermally insulating and ideal for allergy sufferers, as the building material filters pollutants and fine dust from the room air. In this article you can find out how clay is used and what costs builders have to reckon with.
The energy efficiency of new buildings has steadily increased in importance in recent years. Houses are divided into different KfW efficiency classes: KfW 70, KfW 55, KfW 40 and KfW 40 Plus. This article sheds light on the different standards, as well as their costs and price differences.
For environmentally conscious builders, there is usually no question that they want to get their electricity from a green electricity provider. Find out in this article how the green electricity providers Polarstern, Naturstrom, Lichtblick, EWS and Greenpeace do in our ranking.
Many builders doubt the environmental friendliness of conventional insulating materials and therefore prefer ecological alternatives such as jute, hemp, coconut, flax or cellulose. But which ecological insulating material should you choose and what costs do you have to reckon with?