Abstract: A thermal insulation product based on mineral wool, characterized in that the fibers have a micronaire of less than 10 1/min, preferably less than 7 1/min and especially between 3 and 6 1/min, and in that the material has a thermal conductivity of less than 31 mW/m.K, especially less than 30 mW/m.K. The parameters for obtaining this product are in particular the pressure of the burner, the rotation speed of the fiberizing spinner and the daily fiber output per spinner orifice.

Abstract: A thermal insulation product based on mineral wool, characterized in that the fibers have a micronaire of less than 10 l/min, preferably less than 7 l/min and especially between 3 and 6 l/min, and in that the material has a thermal conductivity of less than 31 mW/m·K, especially less than 30 mW/m·K. The parameters for obtaining this product are in particular the pressure of the burner, the rotation speed of the fiberizing spinner and the daily fiber output per spinner orifice.

Abstract: A method determining heat loss coefficient K of a premises, includes: in unoccupied premises, performing a campaign of measurements of at least one temperature inside the premises Tik at closely-spaced time intervals over at least two successive time periods Dk corresponding to distinct heating powers Ptotk of the premises; determining temperature of outside air Tek at the same closely-spaced times; for each time period Dk, on the basis of evolution Tik(t) of a quantity Tik as a function of time, selecting a time interval ?tk for which the evolution Tik(t) is substantially linear, then determining the slope ?k of the tangent to the evolution Tik(t) over this time interval ?tk, and deducing the value of the heat loss coefficient K of the premises on the basis of the slopes ?k.

Abstract: A method determining heat loss coefficient K of a premises, includes: in unoccupied premises, performing a campaign of measurements of at least one temperature inside the premises Ttk at closely-spaced time intervals over at least two successive time periods Dk corresponding to distinct heating powers Ptotk of the premises; determining temperature of outside air Tek at the same closely-spaced times; for each time period Dk, on the basis of evolution Tik(t) of a quantity Tik as a function of time, selecting a time interval ?tk for which the evolution Tik(t) is substantially linear, then determining the slope ?k of the tangent to the evolution Tik(t) over this time interval ?tk, and deducing the value of the heat loss coefficient K of the premises on the basis of the slopes ?k.

Abstract: A thermal insulation product based on mineral wool, characterized in that the fibers have a micronaire of less than 10 l/min, preferably less than 7 l/min and especially between 3 and 6 l/min, and in that the material has a thermal conductivity of less than 31 mW/m·K, especially less than 30 mW/m·K. The parameters for obtaining this product are in particular the pressure of the burner, the rotation speed of the fiberizing spinner and the daily fiber output per spinner orifice.