Contractor

Name : Privé

Construction Manager

Name : Beiler & François Architectes - depuis 2018: Beiler François Fritsch

Contact : [email protected]

 http://bf-archi.lu - http://bffarchitectes.lu

Stakeholders

Function : Assistance to the Contracting Authority

Ralph Baden, biologiste diplômé, baubiologe - expert en construction "saine", responsable qualité de l'air intérieur au Ministère du développement durable/Ministère de l'Environnement

[email protected]

"Health" advice - material analyses and measurements - indoor air quality controls

Owner approach of sustainability

An adept of contemporary green energy production technologies (photovoltaic electric production installation on the old house), eager to go further in the passive and fanatical concept of computer technologies applied to the building - hence the interest for the"smarthome"-, the master ofThis work became sensitive to the health/quality aspects of indoor air following health problems in her children, these problems were related to the poor indoor air quality of the old house (expert assessments, laboratory analyses), hence the desire to integrate the health aspects in the overall constructive concept and in a sustainable project perspective.

Architectural description

It is a passive single-family dwelling house under massive construction: concrete for load-bearing walls, insulating clay/perlite bricks for the other walls (with humidity regulation function), photovoltaic electrical production system, geothermal energy, underfloor heating, home automation system with braided armoured cables (reduction of electromagnetic fields, WiFi internet access transported by cable in each room and individually manageable by relay), solid wood interior joinery (doors, kitchen), mechanically fixed aluminium windows in order to reduce the risk of damage to the walls, etc;Avoid the use of polyurethane foam), chemically tested oiled parquet and parquet glue, use of biosourced insulation free of harmful substances, lime based interior coating (with moisture regulating function) and non-hazardous mineral paint.
All materials were analysed before use.

If you had to do it again?

Some choices in the trades would be different: mostly time and material quality problems, independent of the"health" aspect of the project.

Energy consumption

• Primary energy need : 31,00 kWhep/m².an
• Primary energy need for standard building : 125,00 kWhep/m².an

Calculation method : Other

CEEB : 94

Breakdown for energy consumption :

-

More information :

-

Envelope performance

More information :

-

• Building Compactness Coefficient : 0,50

Indicator : EN 13829 - n50 » (en 1/h-1)

• Air Tightness Value : 0,39
 Blower Door intermediaire


Users' control system opinion :

Interesting potential in terms of energy savings, safety, but also in terms of health and minimisation of exposure to low and high frequency electromagnetic fields.
Limitations concerning the connection of the VMC which at the beginning was incompatible and consequently had to be replaced.

 Blower Door final apres achevement du batiment

Systems

Heating system :
• Geothermal heat pump
• Low temperature floor heating
Hot water system :
• Heat pump
Cooling system :
• Geothermal heat pump
Ventilation system :
• Double flow heat exchanger
Renewable systems :
• Solar photovoltaic
• Heat Pump on geothermal probes
• Renewable energy production : 37,00 %

East-west oriented photovoltaic installation to ensure a more balanced and smoothed electric production over the length of a day (although less important in absolute terms).

Solutions enhancing nature free gains :

-

Smart Building

BMS :

Remote control.
Central control terminal (kitchen)

Smartgrid :

-

Users’ opinion on the Smart Building functions :

GHG emissions

Methodology used :

-

-

Life Cycle Analysis

-

Eco-design material :

Maximized use of eco-materials wherever possible: wood flooring, interior woodwork in solid wood, biosourced insulators, the whole having been analyzed beforehand to certify the absence of harmful substances within them.

Indoor Air quality

Use of materials and products free of harmful substances (previously analysed in the laboratory). Air and dust quality controls for over 150 distinct harmful substances including aromatic and aliphatic VOCs, halogenated derivatives, terpenes, glycol ethers, biocides and pyrethroids, organophosphorus and polybrominated flame retardants, PCBs, PAHs, phthalates and heavy metals. Comparison with the German specific guidance values (Arbeitsgemeinschaft Ökologischer Forschung - AGOEF), among the most severe in Europe.Concentrations found below detection limits and guidance values except for glycol ethers in a particular room from cleaning products used after construction.CO2 values measured over the long term with concentrations well below 1000 ppm (Pettenkofer), and mostly below 600 pp (cf. outdoor air 400-450 ppm).Formaldehyde concentrations below the detection limit of 10 μg/m3 in living room and bedrooms. Radon 67 Bq/m3 in the bedroom.No anomalies concerning high and low frequency electromagnetic fields: low frequency electric fields > 1 V/m, low frequency magnetic fields > 10 nT in sensitive areas (living room and bedrooms) and therefore far below the SBM-2105 orientation values (Baubiologischer Messtechnik Standard in Germany).

Comfort

Health & comfort : Improvement of the regulation of the relative humidity of the indoor air by the use of buffer materials such as clay bricks (Poroton), lime plasters without vitrifying paint, oiled and unglazed parquet.Window blinds are managed using smart technology.

Product

Painting Verdello



Peintures Robin

http://www.verdello.lu/contact

 http://www.verdello.lu


Product category : Second œuvre / Peinture, revêtements muraux

Ecological paint based on natural solvents, 100% biosourced.

Paint analysed by us for the absence of harmful substances that could emanate and contaminate the ambient air.

 Briques Poroton

Wienerberger Poroton



Wienerberger

https://wienerberger.de/service/kontakt

 https://wienerberger.de


Product category : Gros œuvre / Structure, maçonnerie, façade

Clay bricks used for non-load-bearing walls and partitions.

Interesting capacity of regulation of the interior hygrometry.

Wakol MS 290



Wakol

https://www.wakol.com

 https://www.wakol.com


Product category : Second œuvre / Revêtements de sol 

Glue used for parquet on underfloor heating and horizontal and vertical tiling.

Adhesive proposed by the parquet manufacturer, accepted by the tiler, without harmful emissions and without problems of implementation by the trades.

 Colle analysr par laboratoire avant utilisation.

Poroton-T-Dünnbettmörtel



Wienerberger

https://wienerberger.de/service/kontakt

 https://wienerberger.de


Product category : Gros œuvre / Structure, maçonnerie, façade

Heat insulating adhesive for insulating Poroton.

Is an integral part of the Poroton exterior wall system and prevents thermal bridges;
powder product to mix with water on site; no preservatives.

Biologa NF 45



Biologa

www.biologa.de

 http://biosol.de


Product category : Second œuvre / Peinture, revêtements muraux

Specific paint to reduce low frequency electric field emissions.

Application a little difficult because of the black color of the paint

Biosil



Keim

https://www.keim.com/de-ch/

 https://www.keim.com/de-ch/


Product category : Second œuvre / Peinture, revêtements muraux

Paint tested beforehand in laboratory, without harmful emissions.

Paint that is suitable in shades not too dark (risk of clouds).

Haga-Bio-Plattenkleber



HAGA

https://www.haganatur.ch

 https://www.haganatur.ch


Product category : Second œuvre / Revêtements de sol 

Glue without harmful emissions, in powder form and without preservatives or fungicides.

Normal use.

Construction and exploitation costs

• Global cost : 1,00 €
• Renewable energy systems cost : 1,00 €

Global cost/Dwelling : 1

• Total cost of the building : 1 €

Urban environment

The occupants are very satisfied. Children's health problems have disappeared (recurrent cough in the old house, due to proven exposure to organophosphate flame retardants from polyurethane insulation panels).

Land plot area

Land plot area : 1 097,00 m²

Built-up area

Built-up area : 25,00 %

Parking spaces

Parking outside, on the surface.

Building Environmental Quality