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EDIL-THERM® PIR-VELLO is a PIR insulation board faced with fleece for roofs and floors. The fleece facing makes it breathable (μ 40-120) and gives a good key for adhesives and membranes.
Its thermal conductivity is λD 0.027, 0.026 or 0.025 W/mK depending on thickness: high insulation in a limited build-up.