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Knauf ECOROLL KR41E/TAK is a kraft-faced glass mineral wool roll for thermal and acoustic insulation in walls, floors and roofs. The facing gives it a built-in vapor retarder, so it suits timber-frame and stud construction where a separate membrane would otherwise be needed. It is Greenguard certified and LEED eligible, which matters on projects chasing indoor-air-credit points. Against unfaced rolls it saves a fitting step; against rigid foam boards it is cheaper to cover large areas but offers less per-inch R-value and needs framing to hold it.
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The Knauf Insulation ECOROLL KR41E/TAK is insulation supplied in kraft faced rolls. It is Greenguard certified and LEED eligible.
