ANSI SPRI FM BPT-1 2021 pdf free download – Test Standard for Comparative Pull-Through Strengths of Insulation Fastening Systems and Substrate Board Materials Used with Low Slope Roofing Systems.
1.1 Scope This standard provides basic requirements and procedures for determining the maximum failure load of substrate boards, fasteners, or fastening systems when tested for dynamic pull-through resistance.
1.2 Reference Document The Florida Building Code Application Standards TAS 1 1 7(B) Test Procedure for Dynamic Pull-Through Performance of Roofng Membranes over Fastener Heads or Fasteners with Metal Bearing Plates
1.3 Signifcance and Use
1.3.1 Roof assemblies are tested for wind uplift resistance in accordance with various Standards, such as ANSI/FM 4474, Florida Building Code TAS 114, or UL 1897. Each assembly is made up of various components. The test procedure in this standard is useful in qualifying components or component combinations to reduce the dependence on large scale roof assembly testing. See Commentary C1.3 for additional information.
1.3.2 This test procedure is used to determine the maximum failure load of a substrate board when secured with a fastener, or a fastener and stress plate combination and introduced to a linear load perpendicular to the substrate board.
2 General Information
2.1 Defnitions All words defned within this section are italicized throughout the standard.
2.1.1 ANSI American National Standards Institute
2.1.2 Fastener A mechanical component used alone or in conjunction with a stress plate to secure substrate boards to the roof deck.
2.1.3 Fastening System An assembly that includes a fastener and stress plate that will be used to test the pull-through resistance of the substrate board.
2.1.4 Maximum Failure Load The peak load value observed when the test specimen is no longer able to resist the application of additional load.
2.1.5 Stress Plate A specially designed metal or plastic washer, or plastic sleeve, intended to secure a substrate board and resist uplift loads.
2.1.6 Substrate Board A rigid board that can be tested for pull-through resistance in combination with the fastener or fastening system, e.g. board stock insulation, cover board, thermal barrier, etc.
2.2 Apparatus
2.2.1 A tensile test machine that applies load with a constant rate of speed and can measure the applied load. The equipment shall be calibrated within 12 months of the date of testing, in accordance with a standard that is traceable to a nationally recognized source. The load cell shall be of appropriate load capacity to ensure accurate results. See Commentary C2.2.1. 2.2.2 A substrate board holding device which shall have an open area of 12 in. x 12 in. (305 mm x 305 mm) or 18 in. x 18 in. (457 mm x 457 mm). See Commentary C
2.2.2 for additional information.
2.3 Test Specimen Sourcing
2.3.1 All specimens shall be provided by the program sponsor or component supplier and tested as received.
2.3.2 All specimens shall be preconditioned at standard laboratory conditions, 73 ± 4°F (23 ± 2°C) and 50% relative humidity ± 5%.
3 BPT-1 Procedure
3.1 Test Specimen Setup
3.1.1 The substrate board shall be cut to a size that is appropriate for the proposed substrate board holding device. See Commentary C3.1.1.
3.1.2 The fastener or fastening system shall be installed in accordance with manufacturer’s guidelines through the center of the substrate board.
3.1.3 The test specimen shall be installed and secured in a tensile test machine, in preparation for a load to be applied perpendicular to the plane of the substrate board.ANSI SPRI FM BPT-1 pdf download.