ISO 10077-1:2017
Thermal performance of windows, doors and shutters - Calculation of thermal transmittance - Part 1: General

Standard No.

ISO 10077-1:2017

Release Date

2017

Published By

International Organization for Standardization (ISO)

Latest

ISO 10077-1:2017

Scope

This document specifies methods for the calculation of the thermal transmittance of windows and pedestrian doors consisting of glazed and/or opaque panels fitted in a frame, with and without shutters. This document allows for — different types of glazing (glass or plastic; single or multiple glazing; with or without low emissivity coatings, and with spaces filled with air or other gases), — opaque panels within the window or door, — various types of frames (wood, plastic, metallic with and without thermal barrier, metallic with pinpoint metallic connections or any combination of materials), and — where appropriate, the additional thermal resistance introduced by different types of closed shutter or external blind, depending on their air permeability. The thermal transmittance of roof windows and other projecting windows can be calculated according to this document, provided that the thermal transmittance of their frame sections is determined by measurement or by numerical calculation. Default values for glazing, frames and shutters are given in the annexes. Thermal bridge effects at the rebate or joint between the window or door frame and the rest of the building envelope are excluded from the calculation. The calculation does not include — effects of solar radiation (see standards under M2-8), — heat transfer caused by air leakage (see standards under M2-6), — calculation of condensation, — ventilation of air spaces in double and coupled windows, and — surrounding parts of an oriel window. The document is not applicable to — curtain walls and other structural glazing (see other standards under M2-5), and — industrial, commercial and garage doors. NOTE Table 1 in the Introduction shows the relative position of this document within the set of EPB standards in the context of the modular structure as set out in ISO 52000-1.  1 

ISO 10077-1:2017 Referenced Document

• EN 12412-2:2003 Thermal performance of windows, doors and shutters - Determination of thermal transmittance by hot box method - Part 2: Frames
• EN 12664:2001 Thermal performance of building materials and products - Determination of thermal resistance by means of guarded hot plate and heat flow meter methods - Dry and moist products of medium and low thermal resistance
• EN 12667:2001 Thermal performance of building materials and products - Determination of thermal resistance by means of guarded hot plate and heat flow meter methods - Products of high and medium thermal resistance
• EN 13125:2001 Shutters and blinds - Additional thermal resistance - Allocation of a class of air permeability to a product
• EN 13561:2015 External blinds and awnings - Performance requirements including safety
• EN 13659:2015 Shutters and external venetian blinds - Performance requirements including safety
• EN 673:2011 Glass in building - Determination of thermal transmittance (U value) - Calculation method
• EN 674:2011 Glass in building - Determination of thermal transmittance (U value) - Guarded hot plate method
• EN 675:2011 Glass in building - Determination of thermal transmittance (U value) - Heat flow meter method
• ISO 10077-2:2017 Thermal performance of windows, doors and shutters - Calculation of thermal transmittance - Part 2: Numerical method for frames
• ISO 10211:2007 Thermal bridges in building construction - Heat flows and surface temperatures - Detailed calculations
• ISO 10291:1994 Glass in building - Determination of steady-state U values (thermal transmittance) of multiple glazing - Guarded hot plate method
• ISO 10292:1994 Glass in building - Calculation of steady-state U values (thermal transmittance) of multiple glazing
• ISO 10293:1997 Glass in building - Determination of steady-state U values (thermal transmittance) of multiple glazing - Heat flow meter method
• ISO 10456:2007 Building materials and products - Hygrothermal properties - Tabulated design values and procedures for determining declared and design thermal values
• ISO 12567-2:2005 Thermal performance of windows and doors - Determination of thermal transmittance by hot box method - Part 2: Roof windows and other projecting windows
• ISO 52000-1:2017 Energy performance of buildings - Overarching EPB assessment - Part 1: General framework and procedures
• ISO 6946:2017 Building components and building elements - Thermal resistance and thermal transmittance - Calculation methods
• ISO 7345:1987 Thermal insulation; Physical quantities and definitions
• ISO 8301:1991 Thermal insulation; determination of steady-state thermal resistance and related properties; heat flow meter apparatus
• ISO 8302:1991 Thermal insulation; determination of steady-state thermal resistance and related properties; guarded hot plate apparatus
• ISO/TR 52000-2:2017 Energy performance of buildings - Overarching EPB assessment - Part 2: Explanation and justification of ISO 52000-1
• ISO/TR 52022-2:2017 Energy performance of buildings - Thermal, solar and daylight properties of building components and elements - Part 2: Explanation and justification

ISO 10077-1:2017 history

• 2017 ISO 10077-1:2017 Thermal performance of windows, doors and shutters - Calculation of thermal transmittance - Part 1: General
• 2009 ISO 10077-1:2006/cor 1:2009 Thermal performance of windows, doors and shutters - Calculation of thermal transmittance - Part 1: General; Technical Corrigendum 1
• 2006 ISO 10077-1:2006 Thermal performance of windows, doors and shutters - Calculation of thermal transmittance - Part 1: General
• 2000 ISO 10077-1:2000 Thermal performance of windows, doors and shutters - Calculation of thermal transmittance - Part 1: Simplified method