Knauf Insulation Loft Roll 44 Combi Cut - 150mm

This product is specifically designed for insulating cold lofts at ceiling level, providing thermal and acoustic insulation.

Yes, it is certified A1 non-combustible, which is the highest fire performance rating available for building materials.

ECOSE® Technology uses a binder that makes the insulation softer to touch, less dusty, and easier to handle compared to traditional mineral wool, improving the installation experience.

Combi Cut means the roll has pre-perforated cuts at standard joist spacings (typically 380mm and 570mm), allowing it to be easily split or fitted without needing to cut the entire width of the roll.

The thermal conductivity is 0.044 W/mK, indicating good thermal resistance.

While primarily intended for cold lofts at ceiling level, its suitability for other applications like walls or floors depends on specific building regulations and system requirements. Consult local building codes or a professional for guidance on other uses.

The product itself is 150mm thick. This provides a significant insulation layer when installed between ceiling joists.

Ensure you are wearing appropriate PPE, including gloves, long sleeves, eye protection, and a dust mask. ECOSE® Technology makes it softer, but some sensitivity may still occur.

Ensure the insulation is fitted snugly without being over-compressed. Use the combi-cut perforations to tailor the fit around joists. Avoid compressing the insulation as this reduces its thermal performance.

Check for any air leaks from the living space into the loft and ensure adequate ventilation is present in the loft space. Consider installing a vapour barrier on the warm side of the insulation if not already present and required.

Carefully cut insulation pieces to fit around obstacles, ensuring a continuous layer with minimal gaps. Small gaps can be filled with offcuts.