Rockbag vapour control injection bag

Description

The Rockbag bag receives the Rockin L granulated stone wool when insulating sloping loft ceilings by machine injection from the outside. It combines three assembled components: a vapour control layer with an Sd value of 20, a highly vapour-permeable sarking membrane and, on one side, a pressure relief mesh. Once slid between the rafters or purlins, it fills with wool and forms an insulating cassette whose vapour management is handled on both sides. Installation is quick and requires no removal of the existing covering on the internal side. The product comes in five widths, from 0.50 m to 1 m, supplied in 50 m rolls. The system is intended for sloping ceilings with no sarking membrane, covered with small roofing units, in lowland climates.

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