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BS EN 14437:2022 - TC Tracked Changes. Determination of the uplift resistance of installed clay or concrete tiles for roofing. Roof system test method, 2023
- 30467240
- A-30404303 [Go to Page]
- undefined
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Symbols and abbreviations
- 5 Sampling
- 6 Test conditions
- 7 Test material
- 8 Apparatus [Go to Page]
- 8.1 Test rig
- 8.2 Cables
- 8.3 Force measuring device
- 8.4 Monitoring device for displacement of the roofing tiles
- 8.5 Measuring device for weight
- 9 Test procedure [Go to Page]
- 9.1 Measurement of the weight
- 9.2 Installation of battens, roofing tiles and fixings
- 9.3 Determination of the location of the forces on the test roof
- 9.4 Measurement of the uplift resistance [Go to Page]
- 9.4.1 Calibration of the test equipment
- 9.4.2 Eliminate the effect of the load bars and cables
- 9.4.3 Trial test
- 9.4.4 Test series
- 9.4.5 Application of the force
- 9.4.6 Determining the maximum uplift resistance
- 10 Test report
- Annex A (informative)Example of test rig
- Annex B (normative)Specification of the arrangements of the tiles on the test rig and the arrangement of the tiles to be loaded [Go to Page]
- B.1 Single lap interlocking tiles in straight bond
- B.2 Single lap interlocking tiles in broken bond
- B.3 Tiles with double lap
- Annex C (informative)Examples of fixing patterns to be tested [Go to Page]
- C.1 General
- C.2 Single lap interlocking tiles laid in straight bond
- C.3 Single lap interlocking tiles laid in broken bond.
- C.4 Tiles with double overlap
- Annex D (informative)Calculation of uplift resistance [Go to Page]
- D.1 Introduction
- D.2 Calculation of the uplift-resistance, taking into account the ultimate and serviceability failure modes separately [Go to Page]
- D.2.1 General
- D.2.2 Ultimate failure mode, Ru
- D.2.3 Serviceability failure mode, Rs
- D.2.4 Calculation of the mean values of Ru and Rs and the standard deviations su and ss.
- D.2.5 Calculation of characteristic values, Rk,u and Rk,s
- D.2.6 Calculation of design value, Rdu and Rds
- D.3 Calculation of the uplift-resistance with all failure modes equivalent [Go to Page]
- D.3.1 General
- D.3.2 Calculation of mean value Rx and standard deviation sx
- D.3.3 Calculation of characteristic value, Rk
- D.3.4 Calculate design uplift resistance, Rd
- Annex E (informative)Calculation of the uplift resistance of clay or concrete tiles for roofing at various roof pitches, for a tested configuration [Go to Page]
- E.1 Correction for the influence of the weight of the roofing tiles
- E.2 Characteristic value of the resistance of fixings
- E.3 Uplift resistance of partially or fully fixed roofing tiles for various roof pitches
- E.4 Design uplift resistance for partially or fully fixed roofing tiles for various roof pitches
- Annex F (informative)Example of roof tiles for which the test method is not applicable
- Annex G (informative)Test rig commissioning and periodic calibrations [Go to Page]
