Products / SFS isoweld Stress Plates

isoweld stress plates are 3.15 in. round plates of 22 ga. G90 galvanized steel with a proprietary adhesive coating, used to attach TPO and PVC/KEE/TPA membranes with SFS isoweld induction-welding tools rather than by fastening through the membrane. The plate face is color-coded, yellow for TPO and purple for PVC/KEE/TPA, and the data sheet lists State of Florida approval FL 20311 and use with #15 Dekfast, #12 Purlin and TPR-L peel rivet fasteners.