TapcoSlate Wind Load Performance
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Unit 32 Tokenspire Business Park, Hull Road, Woodmansey, Beverley, HU17 0TB Tel +44 (0)1482 880478 Fax: +44 (0)1482 880678 Technical Bulletin 4-07R Windload Performance of TapcoSlates TapcoSlates have been tested and have passed all requirements in accordance with Miami-Dade County Protocol TAS 100-95 –Test Procedure for Wind and Wind Driven Rain Resistance of Discontinuous Roof Systems. For general information, this protocol is designed to test roofing products at wind speeds equivalent to 110 mph. As a result of additional calculations, increased windload capacities for TapcoSlates Board are determined to be as follows: Oriented Strand Board 7” (178mm) Exposure 120 MPH * all roof zones-**exposure B up to a max mean roof height of 45’ (13.716m) 110 MPH * all roof zones-**exposure C up to a max mean roof height of 20’ (6.096m) 7.5” (191mm) Exposure 120 MPH * for all roof zones-**exposure B up to a max mean roof height of 35’ (10.668m) 110 MPH * for all zones- **exposure C up to a max mean roof height of 15’ (4.572m)** ½” (13mm) Plywood 7” (178mm) Exposure 130 MPH * for all roof zones - **exposure C up to a max mean roof height of 60’ (18.288m) 140 MPH * for all roof zones - **exposure C up to a max mean roof height of 50’ (15.24m) 150 MPH *for all roof zones - ***exposure B up to a max mean roof height of 60’ (18.288m) and **exposure C up to a max mean roof height of 25’ (7.62m) 7.5” (191mm) Exposure 130 MPH *wind zone areas, for all roof zones - **exposure C up to a max mean roof height of 60’ (18.288m) 140 MPH *wind zone areas, for all roof zones - **exposure C up to a max mean roof height of 35’ (10.668m) 150 MPH *wind zone areas, ***exposure B up to a max mean roof height of 60’ (18.288m) and **exposure C up to a max mean roof height of 20’ (6.096m) Based on calculations, TapcoSlates are approved for installation in all US coastal zones outside Miami-Dade County Jurisdiction – including but not limited to The 2007 Florida Building, and The Texas Department of Insurance jurisdictions. The roof tile test applications were performed using galvanised, ring shank nails (minimum 1.5” (38mm) in length with 1/8” (3mm) diameter shank, and 3/8” (10mm) diameter head) on a minimum slope roof deck of 4:12. The windspeed requirements were calculated from an allowable design windload uplift load of 129.6 psf for 7” (178mm) exposure and 123.1 psf for 7.5” (191mm) exposure. For applications of the TapcoSlate Roofing Tiles installed at a 6” (152mm) exposure, anticipated design windload uplift load will increase by approximately 25% or 30 psf. For specific application questions related to installations of tiles at <7” (178mm), please direct your inquiries via email to: international@tapcoint.com or telephone +44 (0)1482 880478. *Wind zone areas are defined as Basic Windspeed in MPH determined by American Society of Civil Engineers (ASCE) 7-98 – Minimum design load for Buildings and Other Structures **Exposure C – defined by code as open terrain with scattered obstructions ***Exposure B - defined b