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8. Energy control
Under current regulations, glazing with a high solar factor g and a low U g coefficient will be preferred (RT 2005 and RT 2012 thermal regulations).
In winter, and especially in summer when the sun is shining brightly, this sometimes results in a significant rise in indoor temperature, leading to unbearable conditions.
Remember that :
a low solar factor g is advantageous in summer (reduced effect of the sun);
a low U g coefficient will be of interest in winter (less heat loss).
It will therefore be necessary to choose between these g-values and U g ...
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Energy control
Conclusion
Bibliography
Website
The glass portal http://www.verreonline.fr/
Regulations
FFPV professional rules
Council of State decrees – RT 2012 and certificates of compliance with thermal regulations for new buildings:
Decree no. 2010-1269 of October 26, 2010 on the thermal characteristics and energy performance of buildings
Decree no. 2011-544 of May 18, 2011 on certificates of compliance with thermal...
Standards and norms
- Glass in construction – Determining the luminous and solar characteristics of glazing - NF EN 410 - 04-11
- Glass in construction – Determining the thermal transmittance U – Calculation method - NF EN 673 - 04-11
- Appendix A – Solar shading devices combined with glazing – Calculating solar and light transmittance – Simplified method - NF EN 13363-1 - 05-04
- Appendix B – Solar shading devices combined...
Directory
CEKAL Association – French certification body for insulating glass units http://www.cekal.com
FFPV (French Federation of Glass Professionals) http://www.ffpv.org
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