Analysis of the temperatures measured in very thick and insulating roofs in the vicinity of a chimney

[摘要] Chimneys convey exhaust gas produced in domestic heat appliances to the external environment and to do this they have to pass through elements such as roofs and floors. If these elements are made up of flammable materials the fire hazard may occur. In some European countries the number of roof fire is very high and they affect also certified chimneys, that is, tested following the prescription of the related standards. The aim of this paper is to highlight that the certification procedure does not allow to test chimneys in the worst condition, therefore, chimney installed following the manufacturer prescriptions may in some cases cause the overheating and subsequent roof fire. To do this, experimental tests have been performed for measuring the temperature on roofs in the vicinity of a certified chimney. The results show that the certification procedure should be revised.

[发布机构] University of Brescia, via Branze, Brescia, Italy^1;Associazione ANFUS, via della Cascina Pontevica, Folzano, Brescia, Italy^2

[效力级别] 力学 [学科分类] 力学，机械学

[关键词] European Countries;Experimental test;External environments