attention: data being updated

THERMAL TRANSMITTANCE

(UNI EN ISO 10077 / 1)

The thermal transmittance coefficient indicates the level of energy (warmth/refrigeration) dispersed through the surface of the window. To determine this, the window’s specifications (thermal coefficient of double glazing, wood type, average thickness of frame/sash, inner and outer resistance) must be entered in a specific calculation program. he coefficient is expressed in W/m²K. The resulting number is directly proportional to the heat dispersed through the window.

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Values of characteristic parameters of building elements and technical plants in existing edifices subjected to energy upgrading.

NATIONAL VALUES

PUBLISHED IN No. 39 GAZZETA UFFICIALE (15/07/2015).

Maximum U thermal transmittance of transparent and opaque technical openings and of rolling shutter boxes, inclusive of fixtures, opening outwards and onto non climate-controlled spaces subjected to upgrading.

INDIVIDUAL REGIONS ARE FREE TO APPLY IMPROVED VALUES

E.G. LOMBARDY
Regional Decree no.6480 dated 30.7.2015
E.G. EMILIA ROMAGNA
Decree no.967 - 2015 24-7-2015 – Official Journal of Emilia-Romagna Region – Part II - No.184.
Maximum U thermal transmittance of transparent and opaque technical openings and of rolling shutter boxes, inclusive of fixtures, opening outwards and onto non climate-controlled spaces subjected to upgrading.