SENTINEL KEE VCM is a 24 gauge (0.6 mm) galvanized steel sheet with a 20 mil SENTINEL KEE membrane laminated to one side. SENTINEL KEE VCM can be used to fabricate metal flashings and edge details for SENTINEL KEE roofing systems. SENTINEL KEE VCM is also available in 24 gauge (0.6 mm) stainless steel or 0.040 in aluminum by special order.