New standard for thermal performance of doors and windows
13 April 2022
The standard GOST ISO 10077-1-2021 "Thermal performance of windows, doors and shutters. Calculation of thermal transmittance. Part 1. General" was adopted, which establishes a method for calculating the heat transfer coefficient of window and door units consisting of translucent and/or opaque fillings installed in a frame with or without shutters.
The new standard considers:
- various types of fillings (glass or plastic, single-layer or multi-layer glazing; ordinary glasses and glasses with low-emissivity coatings; with an inter-glass space filled with air or other gases);
- opaque filling of window or door units;
- various types of frame materials (wood, plastic, metal with and without thermal break, metal, with pin-point connectors or made from any combination of materials);
- if necessary, additional thermal resistance created by various types of closed blinds or awnings, depending on their air permeability.
The standard GOST ISO 10077-1-2021 comes into force on July 1, 2022.
- various types of fillings (glass or plastic, single-layer or multi-layer glazing; ordinary glasses and glasses with low-emissivity coatings; with an inter-glass space filled with air or other gases);
- opaque filling of window or door units;
- various types of frame materials (wood, plastic, metal with and without thermal break, metal, with pin-point connectors or made from any combination of materials);
- if necessary, additional thermal resistance created by various types of closed blinds or awnings, depending on their air permeability.
The standard GOST ISO 10077-1-2021 comes into force on July 1, 2022.