Confirmed by science: France saves heating and cooling costs with the warm edge

New study can support window manufacturers when providing advice and

making sales

Kreuzlingen/Switzerland, November 2018. A scientific study now shows with concrete figures how much heating and cooling costs French home-owners and tenants can save with plastic spacer bars in the insulating glass in heat insulating windows. Three reference cities that represent the three different climates in France were chosen: Nancy for the cool-temperate climate, La Rochelle for the warm-temperate climate and Nice for the warm climate zone.

The new study of the independent Passive House Institute also calculates the savings of heating and cooling energy and CO2 emissions of entire buildings thanks to the small, efficient component. The results confirm the great benefits of high-quality plastic spacer bars compared with spacers made of aluminium. Window builders can use the study when advising customers and making sales.

According to the study, end customers can pay so much less in heating costs that a window with a warm edge is worthwhile, despite the slightly higher purchase price. For window builders and insulating glass manufacturers, this offers an economic opportunity, as high-quality plastic spacer bars are only slightly more expensive per linear metre to purchase than spacer bars made of aluminium.

The new study by the Passive House Institute was the first to investigate the influence of the spacer bars on the annual heating requirements of buildings: The study compares aluminium, stainless steel and plastic spacer bars in the windows of common houses that meet the requirements of the French energy standards in three different climate zones.  The results: If high-quality plastic spacer bars are used instead of aluminium spacer bars, in the cool-temperate climate in Nancy, 5.9 percent of the total heating energy can be saved in a standard French house with double glazing. With a conventional house with ever more commonly used triple glazing, as much as 7.9 percent can be saved, and in a building following the Passive House standard, the savings are nearly 18 percent.

In the warm-temperate climate zone in La Rochelle, in the case of a typical country house with double glazing, the savings are 4.2 percent, with 5.7 percent savings in a house with triple glazing and in the passive house, over 13 percent can be saved.

In the warm climate of Nice, in addition to the 49.6 kWh/(m²a) annual heating requirement with aluminium spacer bars, there is also a useful cooling requirement – energy needed for cooling provided by the air conditioning unit in summer – of 33.3 kWh/(m²a) at 20 °C maximum internal temperature.

 

The energy savings are lower in comparison to the climates where only heating is required, with savings of up to 3.8 percent by using the plastic spacer bar instead of the aluminium spacer, but a maximum of just under 9 percent in the passive house.

 

 

 

Small component, big impact

 

In modern heat insulating windows, after the glass and frame, the spacer bar is the third important component in terms of the energy performance. The spacer bar is now really becoming the centre of attention. If the spacer bar has a poor – i.e. high – heat transmission coefficient, a lot of heat is lost to the outside – even with an excellent frame and high-tech glass. Even with the plastic spacer bars, there are big differences in the performance values: A highly efficient warm edge, as used in the study, has a linear thermal conductivity of 0.14 W/(mK). The value for stainless steel is 0.6 and for the aluminium spacer bar – the clear back marker – it is a massive 160 W/(mK).

The fact that aluminium spacer bars are still being used is down to the price above all. Some insulating glass manufacturers process several millions of linear metres every year. The cents per metre saved in the purchase price of aluminium spacer bars are therefore the argument used in the purchasing decision and the price war. The new study can give the manufacturers some important backup here, as it proves the cash benefits available to customers and consumers by using the higher-quality insulating glass with the warm edge.

 

“Essentially, the aluminium should be banned. The positive effect on living quality that the warm edge in the insulating glass has is so great that it has to become the conventional system", said Prof. Wolfgang Feist from the Passive House Institute at the SWISSPACER "fenestra-vision" symposium in Strasbourg. Because alongside the energy savings and aesthetics, spacer bars made from plastic also offer more living comfort: the temperatures on the inside of the windows remain pleasant even in the winter. In addition, the warm edge prevents the build-up of condensation at the edge of the glass, reducing the risk of mould there.

 

The study was commissioned by SWISSPACER, one of the producers of warm edge spacer bars. “With the scientific investigation by an independent research institute, we wanted resilient data for the market," stressed Andreas Geith, Managing Director of SWISSPACER.

The energy transition tax credit for window changes in France

 

Good news for professionals in the window and for individuals! Minister of Ecological Transition François de Rugy announced that the government would reconsider the energy transition tax credit to take into account the changes of windows.

 

According to him, the government will continue to work for energy savings. It's "probably where we have the greatest margins of progress," he says. "A more efficient device than in the past". "We will reconsider the energy transition tax credit for window changes", this file "has been much debated for a year with building professionals." He was "on hold" when he arrived at the ministry. The minister promises "a more efficient device than in the past (...) an aid for those who pass window (s) in single glazed window (s) double glazing", stating that this aid will be capped at 100 euros per window

 

There are no translations available.

Nouveaux forêts diamantés hautes performances

 

L’arrivée sur le marché ces dernières années de machines de perçages automatiques ou/et à commande numérique a demandé aux fabricants d'outillage de proposer  de nouveaux  forêts diamantés pouvant répondre à une plus grande automatisation et à une amélioration de la qualité de perçage.

Il faut savoir que l’opération de perçage est en général une opération lente qui ralentit un processus de façonnage du verre plat entièrement automatique

Les caractéristiques demandées par les fabricants de machines sont les suivantes

Temps de perçage plus rapide pour réduire le temps de cette opération

Perçage sans écailles pour ne pas avoir de problèmes lors de façonnages suivants tels que la trempe

Capacité de coupe stable pour ne pas avoir à affuter les forêts, opérations automatiques toujours délicate

Longue durée de vie pour réduire les arrêts de production dus aux changements de forêts diamantés.

 

Pour répondre à ces exigences nous avons développés une nouvelle gamme de forêts diamantés avec une épaisseur de couronne réduite (0.8 mm jusqu’à des diamètres de 40 mm et 0.9 mm au-delà et une nouvelle géométrie de couronne diamantée pour favoriser l’évacuation de l’eau et de la silice.

Pour plus d'informations ou offre de prix

glass@comascotec.com

There are no translations available.

Offre d’emploi : Technicien SAV et Formateur Itinérant H/F

 

BIESSE FRANCE Biesse France, est une filiale française du Groupe Biesse, leader mondial dans la production de machines-outils et d'équipements techniques pour l'usinage du bois, du verre, de la pierre et des matériaux composites.

 

Nous recherchons des Techniciens et/ ou des chargés de formation SAV itinérants pour montage, maintenance préventive ou curative du parc machines français, et/ou pour la formation de nos machines auprès de nos clients.

 

Vous intégrez une entreprise Leader en pleine croissance, composée d’une équipe d'environ 40 techniciens itinérants supportés par 8 hotliners.

Vous aurez pour mission d'assurer les activités et les missions suivantes :

En tant que technicien Itinérant :

• Le montage et la mise en route de machines spéciales,

• Et/ ou la maintenance curative ou préventive,

En tant que chargé de formation/ formateur itinérant :

• L’optimisation des procédés de fabrication de la clientèle (stratégies d’usinage, choix des outils, programmation…)

• La formation de la clientèle pour l’utilisation de machines C.N. et des logiciels

• L'assistance téléphonique

• La participation aux salons nationaux ou internationaux

 

Profil recherché:

• Vous avez déjà une expérience, idéalement sur machines spéciales ou outils.

• Vous aimez l'itinérance (environ 50.000 km/an) et cela ne vous dérange pas de vous absenter du lundi matin au vendredi soir de chez vous.

• Vous avez été opérateur et/ou formateur sur commandes numériques.

• Vous avez de bonnes compétences en mécanique, pneumatique et électricité.

• Idéalement, vous connaissez le processus d'usinage du bois, du verre, ou de la pierre et des matériaux composites.

• Vous parlez idéalement Anglais ou italien. Un niveau correct vous serait nécessaire pour lire les notices et manuels d'utilisation, et idéalement pour suivre des formations en Italie.

 

Package:

• Package de rémunération évolutif sur 3 ans

• Prime annuelle de déplacements

• Prime de Participation, PEE

• Véhicule utilitaire 2 places

• CB société, PC portable et Smartphone

• Bonne couverture de Frais de santé et de Prévoyance

• Formations en France et/ou en Italie

• Avantages CE Type d'emploi : Temps plein, CDI

 

Envoyer CV et lettre de motivation à

Recrutement

BIESSE FRANCE – 4 chemin de Moninsable, 69530, Brignais – France

Tel. +33 (0)4 81 65 16 05 – Fax +33 (0)4 78 96 73 30 – www.biesse.com

recrutement@biessefrance.fr

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Last updating  January 10 2019.

 

Used machines for aluminium and PVC processing

 

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