BS EN 12154:2000 – Curtain walling Ð Watertightness Ð Performance requirements and classification
Scope
This standard defines the requirements and cassification of watertightness performance of both fixed and openable parts of curtain walling under positive static air pressure.
NOTE: This standard applies to curtain walling in accordance with WI 003238.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appopriate points in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these listed publications apply to this European Standard only when incorporated into it by amendment or revision.
For undated relerences the latest edition of the publication referred to applies.
prEN 13119:1997
Curtain walling – Terminology.
prEN 12155:1995
Curtain walling – Watertightness – Laboratory test under static pressure.
Definitions
For the purposes of this standard, the defnitins given in prEN 13119:1997, together with the fllowing,apply.
3.1 test pressure differential pressure between the two faces of the test specimen, expressed in pascals (Pa)
3.2 positive pressure when outer face is subjected to higher pressure than inner face 3.3 waterightness the abilily of the curtain walling to resist water leakage
3.4 water leakage the penetration of water that would continuously or repeatedly wet parts of: 1. the inside face of the test specimen;
2. any parts of the specimen intended to remain dry, not being part of the water drainage system to the outside
3.5 limit of watertightness the maximum test pressure for which the specimen remains watertight for the speified time (see Table 1)
4 Requirements
There shall be no water leakage to the maximum test pressure (Pmax) throughout the sequence of test pressures and times speified in Table 1 .
5 Test methods
The test unit shall be tested in accordance with prEN 12155:1995.
NOTE: The test sequence as specified in WI 00033238 should be fllowed.
6 Classification
Five classes are defined in order to adequately cover all locational and regional conditions likely to be experienced.
BS EN 12154:2000 – Curtain walling Ð Watertightness Ð Performance requirements and classification