Abstract: A thermal insulation product includes a mineral wool, the mineral wool including mineral fibers, the fibers having a fiber length population distribution such that the median fiber length by number of the distribution is less than or equal to 2 mm, and that at least 10% of the number population has a fiber length strictly greater than 1.5 mm and, the product including at least one additive, the product having a weight percent of the total of the at least one additive of between 0.4% and 1.2% inclusive.

Abstract: A thermal and/or acoustic insulation product includes a loose mineral wool, the mineral wool including mineral fibers and being suited to being blown. The fibers have a fiber length population distribution such that the ratio of the fiber length equal to the 90th percentile in distribution number to the median fiber length in distribution number is greater than 3, and the product includes at least one additive and has a total additive weight percent of between 0.4% and 1.2% inclusive.

Abstract: A thermal and/or acoustic insulation product includes a loose mineral wool, the mineral wool including mineral fibers and being suited to being blown. The product includes at least one additive and has a total additive weight percent of between 0.4% and 1.2% inclusive and a micronaire of between 4 L/min and 9 L/min.