TapcoSlate Classic BRE Wind-driven Rain Testing Report
18Pages

BRE Test Report Wind Driven Rain Testing of Tapco Classic Slates to EN 15601 Prepared for: Steve Duke, Tapco International Corp Report Number: BRE Watford, Herts WD25 9XX Customer Services 0333 321 8811 From outside the UK: T + 44 (0) 1923 664000 F + 44 (0) 1923 664010 E enquiries@bre.co.uk www.bre.co.uk Prepared for: Steve Duke Tapco International Corp Unit 32 Hull Road, Woodmansey, Beverly, HU17 0TB

Wind Driven Rain Testing of Tapco Classic Slates to EN 15601 Laboratory Technician, Fire & Building Technology Group Associate Director, Fire & Building Technology Group This report is made on behalf of Building Research Establishment Ltd (BRE) and may only be distributed in its entirety, without amendment, and with attribution to BRE to the extent permitted by the terms and conditions of the contract. Test results relate only to the specimens tested. BRE has no responsibility for the design, materials, workmanship or performance of the product or specimens tested. This report does not...

Wind Driven Rain Testing of Tapco Classic Slates to EN 15601 4.1 Determining the wet sealed box pressure (WSB) 7 5.1 Deluge tests - Sub-test D 8 5.2 Wind and rain tests - Sub-test B 8 Appendix A Results from tests on Tapco Classic Slate 12 Appendix B - Calibration results for the BRE test rig 14 Commercial in Confidence Template Version V2-082014 © Building Research Establishment Ltd Report No. P112341 -1000 Issue 2 Page 2 of 17

Wind Driven Rain Testing of Tapco Classic Slates to EN 15601 This report describes rain penetration tests carried out on the Tapco Classic Slates. The tests were carried out at a single roof pitches of 14º. The testing was carried out at BRE on the 30th May 2018. These tests are based on BRE Proposal No P112341 dated 26th March 2018. The testing was witnessed by: Lee Windass of Tapco Steve Duke of Tapco Nisha Sharma of BBA Commercial in Confidence Template Version V2-082014 © Building Research Establishment Ltd Report No. P112341 -1000 Issue 2 Page 3 of 17

Wind Driven Rain Testing of Tapco Classic Slates to EN 15601 The objective of these tests was to assess the driving rain performance of the Tapco Classic Slates: Testing was carried out at roof pitch of 14°. The tests were carried out using the following wind and rain combinations: · Deluge - simulating maximum rainfall with no wind (defined in prEN 15601 as the type D test) High rainfall with high wind speed (defined in prEN 15601 as the type B test) Commercial in Confidence Template Version V2-082014 © Building Research Establishment Ltd Report No. P112341 -1000 Issue 2 Page 4 of 1

Wind Driven Rain Testing of Tapco Classic Slates to EN 15601 Test Specimens The test products were installed on the BRE test rigs by Tapco personnel. Details of the batten gauge, etc. are given in Appendix A. The performance of the specimen was investigated using a purpose-built monopitch test roof of nominal size 2m x 2m, at a pitch of 14°. On the underside of the test roofs, and central to them, a 1.8m wide x 1.6m long shallow Perspex box (open area 2.88m2) was mounted. It was this box that allowed the pressure underneath the specimen to be controlled. This test rig fully complies with...

Wind Driven Rain Testing of Tapco Classic Slates to EN 15601 Test Procedure The specimen was installed on the BRE test rig positioned at the wind tunnel outlet. On the underside of the test rig, a Perspex pressure box enabled the pressure difference across the specimen to be varied during the testing. The edges around the pressure box were sealed to prevent the ingress of water during the rain penetration testing; this sealing also provided an effective aerodynamic seal between the air flow conditions above and below the covering. The wind tunnel velocity was measured using a Pitot-static...

Wind Driven Rain Testing of Tapco Classic Slates to EN 15601 The tests start with the pressure in the test box at the appropriate wet sealed box pressure (WSB), as described in Section 4.1. The pressure inside the box is then decreased by 10 Pascals increments and the cycle is repeated until the amount of measured leakage water exceeds 10gr/m2/5min or as otherwise agreed with the customer. Determining the wet sealed box pressure (WSB) Before the driving rain testing starts, the WSB pressure must first be determined. This is the pressure that occurs within the pressure box at the appropriate...

Wind Driven Rain Testing of Tapco Classic Slates to EN 15601 There is no pass-fail criterion given in prEN 15601. The test is intended as a comparative test and the results should be compared with the performance of reference products with known satisfactory wind driven rain performance. Copies of the result sheets filled in during the tests and giving observations made at the time are contained in Appendix A. Deluge tests – Sub-test D There were no leaks observed from the specimen at a roof pitch of 14º. Wind and rain tests – Sub-test B Figure 3 shows the Tapco Slates under test. prEN...

Wind Driven Rain Testing of Tapco Classic Slates to EN 15601 Roof Pitch Table 1 Pressure factor for the test on the Tapco Classic Slate Commercial in Confidence Template Version V2-082014 © Building Research Establishment Ltd Report No. P112341 -1000 Issue 2 Page 9 of 17

Wind Driven Rain Testing of Tapco Classic Slates to EN 15601 Figure 4 Pressure factor v leakage curves for the Tapco Classic Slate and comparison products Commercial in Confidence Template Version V2-082014 © Building Research Establishment Ltd Report No. P112341 -1000 Issue 2 Page 10 of 17

Wind Driven Rain Testing of Tapco Classic Slates to EN 15601 This report describes driving rain tests carried out by BRE to determine the performance of Tapco Classic Slates to wind driven rain. The testing was carried out to the requirements of prEN15601. The main conclusions from these tests are: · The Tapco Classic Slates when tested at a roof pitch of 14° perform better that the reference products they are compared with. At a roof pitch of 14° the Tapco Classic Slates are expected to perform satisfactory under wind driven rain. As the roof pitch increases the weathertightness...