Fasteners are crucial components, especially for mechanically fastened roofing systems. Wind uplift forces and oxidation are two of the many influences that put tough demands on fastener materials.

When mechanically attaching single ply membranes to a structure, the interface performance of the structure plus the membrane, fastener and pressure plate performance, are key factors in determining the optimal performance of the finished roofing system.

To ensure that a roofing system's resistance to wind uplift can be correctly calculated, the individual combination of fastener type, membrane type and substrate type, should be tested in accordance with UEAtc directive; “Supplementary Guide for the Assessment of Mechanically Fastened Waterproofing” and Factory Mutual FM 4470.

To ensure the correct fasteners are used in every Sarnafil roofing system, Sika supply a range of Sarnafil fasteners including thermally broken tube fasteners, pressure plates and fasteners, manufactured to our specification by SFS Intec Ltd. This enables Sika to provide a Sarnafil guarantee that covers the roofing system* and its attachment, for both product failure and resistance to wind uplift, backed by Product Liability and Professional Indemnity Insurance.
 
* The roofing system (vapour control layer, insulation, membrane and ancillary components) is only covered if a Sarnafil Extended Products guarantee is used. If a Sarnafil Product guarantee is required, only the waterproofing membrane, its attachment and any ancillary components, are covered.

Our Range of Fasteners for Sarnafil Single Ply Roofs