The wish of ever more builder-owners for a house that is healthy to live in is growing. Health is our most precious asset, our most vital nutrition is the air we breathe. Indoor air is of special importance, particularly when you think that we spend an average of 80 % of our time in closed rooms.
Healthy building should not be a luxury, but should be a benefit for all families building houses at a value-for-money price, something about which managing director Johannes Schwörer is fully convinced. Accordingly, SchwörerHaus is subject to the strict quality assurance process of the Sentinel Haus Institut and TÜV Rheinland for the health-promoting quality of interior rooms in Schwörer houses.
What is healthy housing?
A house tested for harmful substances with good quality indoor air is the basis for healthy living. Headaches, lack of concentration, tiredness, dizziness, rashes, asthma – the list of symptoms of poor health that can be caused by harmful substances in a house is long. They escape from walls and the floor and are in furniture.
What is important for a healthy house is therefore the right choice of building materials so that as few harmful substances as possible manage to get into the house. Not only are harmful substances in indoor air amongst the factors affecting healthy housing, electro-smog, permanent noise, sufficient daylight and protection from summer heat are all elements with a positive or negative effect on healthy long-term living.
Your healthy Schwörer house
We take the wish of an increasing number of builder-owners for healthy housing very seriously. In order to document our commitment in this area as comprehensively as possible, we decided – together with the renowned Sentinel Haus Institut and TÜV Rheinland – to put ourselves to a large-scale practical test: as proven, SchwörerHaus builds houses assessed for their health that meet the highest demands for indoor air quality.
Managing Director of Sentinel Haus Institut
"Just to test one house from a thousand built and then brandish general statements like: 'We build healthy housing, we are certified' – this is not the way Sentinel Haus does things. We issue one test certificate for each house with a serial number. This means that each customer can enjoy safety in his own house."
Safety through healthy living
Thanks to drying and conditioning, when it comes to timber-based materials, Schwörer can do without chemical wood preservers.
Certified building and extension materials
Materials relevant for the quality of inside air are assessed for harmful substances where they have health aspects.
The Schwörer fresh-air, heat-recovery technology – a system to control the ventilation of living spaces – continually provides fresh air even when the windows are closed. Pollen filters can be added as an option for allergy sufferers.
Plenty of daylight
Sufficient daylight is also important for health. The optimal size and clever arrangement of the windows is just as important as the overall window area.
Good sound insulation
Thanks to top-quality building materials and well thought out construction, Schwörer houses score excellent sound insulation values.
Why is healthy housing so important?
The requirements of the German Energy Saving Ordinance are becoming more stringent every year. Hence, for energy reasons, houses are becoming more air tight.In the past, harmful substances would escape through the draughty building envelope, replaced by fresh air coming in. In new, energy-saving air-tight buildings or renovated buildings, this exchange of air can no longer take place. Harmful substances can therefore accumulate inside the building.Harmful and adverse building and extension materials must be reduced, especially in these houses. A sufficient exchange of air can help towards healthy housing. Demand controlled ventilation with heat recovery is an optimum addition.
Schwörer building blocks for healthy buildings
PEFC certified timber from regional forests is cut in the Schwörer sawmill, carefully dried and processed into top-quality certified building materials. This is a prerequisite for doing without chemical wood preservers.
Without chemical wood preservers
Schwörer Cospan boards in exterior walls and floor and ceiling slabs provide excellent sound insulation. The special chipboard patented by Schwörer consists of natural wood and cement.
Cospan boards for sound insulation
The demand controlled heat recovery ventilation de-humidifies living spaces and ensures a healthy exchange of air without any loss of heat – the best protection against humidity damage.
Heat recovery ventilation
The dry building techniques used and construction optimised to prevent thermal bridging combined with the air-tight building envelope are the fundamental requirements for preventing mould growth.
Building methods and construction
In coordination with the Sentinel Haus Institut, only certified extension materials with low levels of harmful substances are permitted. These are recorded in a special internal company database.
Certified extension materials
'Healthier Buildings' certificate
- Manufacturers are required to provide evidence of substances used in all products.
- After assessments of individual components, TÜV Rheinland tests assembled systems such as wall and ceiling structures in test chambers for any interdependency of their components. For interior walls for example, plaster board ingredients, coatings, adhesives, tiles, grouting and sealant materials.
- In the next step, the MONO Schwörer show home in Mannheim was tested. The results of the indoor air tests were excellent.
- To underpin the positive values, ten other Schwörer show homes – all built in different years and from different series – were tested for their indoor air quality. They all scored top results.
- In the light of such approval, SchwörerHaus decided to submit itself to a large-scale practical test in line with the standardised procedures of TÜV Rheinland and the Sentinel Haus Institut based on about 650 customers' houses.
- The 550 evaluated indoor air tests conducted to date (August 2017) confirm the positive test results. Insights gained from the tests have been incorporated in practice in assembly and extension specifications, and guidelines have been drawn up.