VEDAFEU C rope firestop system consists of a core of fireproof and rotproof mineral fibres bound by an outer braiding of fibreglass thread. They are resistant to water and humidity, as well as to most aggressive chemicals and micro¬organisms. VEDAFEU C rope firestop system meets norms for horizontal and vertical joints: tested without sealant and with a movement of +20%, they come in diameters from 12 mm to 180 mm and are EI 240 (fire integrity and thermal insulation of 240 minutes without failure) rated for all joints with gaps from 10 mm to 200 mm. VEDAFEU M Mattress firestop system For initial joint widths from 100 to 420 mm, with or without joint cover. Officially rated EI 120 minutes without failure.