Evercryl Emergency Roof Repair in a cartridge is an emergency repair aid for the use on external roofing applications. The Evercryl formula has been gelled up to allow it to be cartridge applied while still containing the top quality fibres that you expect with Evercryl. The product is applied through  a special 'duck bill' shaped nozzle ideal for emergency repairs to gaps, cracks and holes in roofs, gutters, flashing, upstands and felt. It even works in wet conditions so there is no need to wait for the rain to stop.