BS_8579-2020.pdf

BRITISH STANDARDBS8579:2020ContentsPageForewordiiiIntroduction1ScopeNormative referencesTerms and definitionsFigure 1-Balconies and terraces64 General principles14.1 General4.2Relationship of balconies to the building5Enclosure of balconies and small terraces5.1General7Figure 2-Basic principles of an enclosed balcony/terrace5.2 Daylight,thermal,ventilation and acoustic considerations95.3Drainage considerations105.4Fire considerations105.5Finishes and equipment106Arrangement of balconies116.1Proximity and organization of multiple balconies116.2 Level above ground116.3Privacy117Wind effects117.1General11Figure 3-Wind accelerating as it is funnelled between adjacent buildings127.2 Wind mitigation measures12Figure 4-Examples of wind mitigation measures13Figure 5-Upper bound pressure coefficients for rectangular buildings up to 50 m height148 Service life of balconies with a floor level greater than 2.4 m above ground level149 Inclusive design159.1 Thresholds159.2Balcony and terrace dimensions169.3 Balcony and terrace surfaces169.4Sight lines via balconies and terraces1610Structural and mechanical stability and integrity1711Safety1811.1Persons occupying the balcony or terrace18Figure 6-Guarding dimensions for balconies and terraces2011.2 Persons below the balcony or terrace2111.3 Persons constructing,cleaning,maintaining and dismantling12 Performance in fire312.1General2312.2 Materials and components for balconies in respect to fire24Figure 7-Projecting balconies and protection from fire2612.3 Materials and components for terraces in respect to fire13 Thermal considerations2713.1 General2713.2 U-,-(psi)and x-(chi)values13.3 Coupling and transmission heat loss coefficients2813.4 Condensation risk28THE BRITISH STANDARDS INSTITUTION 2020-ALL RIGHTS RESERVED IBS8579:2020BRITISH STANDARDTHIS PAGE DELIBERATELY LEFT BLANK