Didi Faouzi*1, N. Bibi-Triki1, B. Draoui2, A. Abene3 1Materials and Renewable Energy Research Unit M.R.E.R.U, University of Abou-bakr Belkaïd, B.P. 119Tlemcen, Algeria 2Energy Laboratory in Drylands, University of Bechar, Bechar Algeria 3Euro-Mediterranean Institute of Environment and

R. Georgiev, V. Dimova, K. Peichev, Р. Georgiev Abstract. The thermal insulation of roofs of laying turkey hen houses is discussed. The mean monthly temperatures for the respective region were used to determine monthly heat losses through a roof of various thermal insulation thickness