BS EN 1026:2016

What is BS EN 1026 - Windows and doors Air permeability about? 

BS EN 1026 focuses on the air permeability of windows and doors. 

BS EN 1026 defines the test method to be used to determine the air permeability of completely assembled windows and doorsets of any material when submitted to positive or negative test pressures. This test method is designed to take account of conditions in use when the window or doorset is installed in accordance with the manufacturer’s specification and the requirements of relevant European Standards and codes of practice. 

Note- 

BS EN 1026 does not apply to the joints between the window or door frame and the building construction. 

Who is BS EN 1026 - Windows and doors Air permeability for?  

BS EN 1026 on windows and doors air permeability is useful for: 

• Construction industries  
• Civil engineer  
• Installers of windows and doors  
• Door assemblies  
• Manufacturer of windows and doors 

Why should you use BS EN 1026 - Windows and doors Air permeability?  

Air permeability is the amount of air passing through all joints between casement or leaf and frame profiles of a test specimen caused by the test pressure. 

BS EN 1026 gives guidance for the test procedure of chamber for the measurement of air permeability for windows and external and internal pedestrian doorsets. The test will help you to know about the air permeability of the test chamber whether the pressure is positive or negative test pressures.  

You can use BS EN 1026 while installation of windows and doors. 

What’s changed since the last update? 

BS EN 1026:2016 supersedes BS EN 1026:2000 which is withdrawn. 

In comparison with EN 1026:2000, the following significant changes were made: 

• Clause 2: Deletion of "Normative references “ 
• Clause 3: Supplement of definition “closing condition” 
• Sub-clause 3.2: Simplification of definition “test pressure” 
• Sub-clause 3.4 and 3.5: Revision of definition „opening joint “ 
• Sub-clause 5.4: Revision of definition „accuracy “ 
• Sub-clause 7.3: Addition of „closing condition “ 
• Sub-clause 7.3: Separate test methods for measurement of air permeability for windows and external pedestrian doorsets in 7.3.2 and for internal pedestrian doorsets in 7.3.3 
• Clause 9: Supplement of necessary description of test specimen 
• Clause 9: Revision of Figures 1 and 2 
• Revision of Annex A: Separation of figures into Figures A.1 and A.2 

Clause 9: Supplement of figures: 

• Figure 3 - Sliding door test specimen 
• Figure 4 - Single leaf test specimen with fixed glazing 
• Figure 5 - Single leaf test specimen with fixed glazing, extension profiles and shutter boxes 
• Figure 6 - External / internal pedestrian doorset