EN 14759:2005 – Shutters – Acoustic insulation relative to airborne sound – Expression of performance
1 Scope
The current standard applies to manufacturers of windows who wish to take advantage of additional acoustical performances brought by built-in shutter with window delivered as such on the market or brought by the addition of a shutter delivered separately (built-in shutter installed in a prefabricated box or built-on shutter).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 12216:2002, Shutters, external blinds, internal blinds — Terminology, glossary and definitions.
EN ISO 717-1, Acoustics — Rating of sound insulation in buildings and of building elements — Part 1: Airborne sound insulation (ISO 717-1:1996).
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12216:2002 apply together with the following:
distance window / shutter, d
smallest distance between the internal face of the curtain and the external face of the glazing 4 Acoustical performances of shutters
4.1 Assessment of performances
The acoustical performance of shutters, in decibels, is specified by R w , the weighted sound reduction index of airborne sound, with the spectrum adaptation terms C and C tr , referring to A-weighted pink noise and Aweighted urban traffic noise respectively, according to the procedure of evaluation specified in EN ISO 717-1 (using measurements in third octave bands).
R w (C;C tr )
NOTE 1 The additional acoustical performance of the shutter depends on the acoustical performance of the window fitted, on the distance d and of the quality of the installation.
NOTE 2 The influence of the shutter on the sound insulation depends on the construction details. A shutter does not necessarily improve the sound insulation determined according to EN ISO 717-1, and there might even be a risk of decrease of sound insulation in some cases.
The acoustic performance also depends on the type of mounting of the shutter or the built-in shutter with window in the opening. The following six types of mounting are defined:
— For a built-in shutter with window (see Figure 1)
Type 1: The box is behind the lintel
Type 2: The box is inside the opening
— For a built-in shutter (see Figure 2)
EN 14759:2005 – Shutters – Acoustic insulation relative to airborne sound – Expression of performance