The range of REGIONAL Chimney Stacks is available in various Finishes in order to provide a wealth of possible choice to suit the architectural specific requirements of the site. The Flashing plate to roof is specifically manufactured in factory for a slope of roof and a given roof tile material. The chimney stack is cut to the slope and is delivered with a chimney flue THERMINOX ZI. It is Installed dry, without any requirement for reinforcement * of the roof rafters thanks to its universal fixing kit and its reduced weight. (*Note Chimney stacks with real brick slips in the Cathedral and Britania range, will require the roof rafter supporting the unit to be doubled up.)