BS 5821-3:1984

What is BS 5821-3 - Airborne sound insulation of façade elements and façades about?  

BS 5821-3 is the third part of the multiple series that: 

• Defines single-number quantities for the airborne sound insulation of façades, façade elements, windows, doors, roofs 
• Gives rules for determining these quantities from the results of measurements carried out in one-third octave bands according to iso 140/3 and iso 140/5 

Who is BS 5821-3 - Airborne sound insulation of façade elements and façades for?  

BS 5821-3 on airborne sound insulation of façade elements and façades is useful for: 

• Civil engineers  
• Researchers of survey   
• Construction industries  
• Maintenance department of building   
• Architects  
• Manufacturers of building elements 
• Testing laboratories of building elements 

Why should you use BS 5821-3 - Airborne sound insulation of façade elements and façades? 

Single-number quantity for airborne sound insulation rating is the value, in decibels, of the reference curve at 500 Hz after shifting it according to the method laid down. 

BS 5821-3 specifies airborne sound insulation and for simplifying the formulation of acoustical requirements in building codes. BS 5821-3 also specifies the numerical values of the single-number quantities that are specified according to varying needs.  

Overall, BS 5821-3 will help you to standardize a method whereby the frequency-dependent values of airborne sound insulation can be converted into a single number characterizing the acoustical performance.