Knauf Insulation Loft Roll 44 | Combi Cut | All Sizes

KnaufSKU: IUK00881

Sale price£35.99 

inc VAT

Pay in 3 prices shown are an example only. Total calculated at checkout.

Delivery within 3 - 5 working days

Free Delivery On Orders
Over £599.95 Ex-Vat

Need something quicker?

Contact us on 0300 303 4578
or email here!

Knauf Insulation Loft Roll Insulation – Mineral Wool


Enhance your home’s energy efficiency with Knauf Insulation Loft Roll 44, crafted from Glass Mineral Wool and designed for insulating cold lofts at ceiling level. 

These mineral wool loft rolls are non-combustible, boasting the highest Euroclass A1 reaction to fire classification and are made with Knauf Insulation’s eco-friendly ECOSE® Technology.

Product Features

  • Installation Flexibility: Mineral wool easily conforms to slight irregularities in substrates, which helps in maintaining effective insulation by preventing air gaps.
  • Lightweight Design: Knauf Insulation Loft Roll 44 is lightweight and compression-packed for easy transport and handling at the installation site.
  • Flexible Application: Suitable for both 400mm and 600mm joist centres. Knauf Insulation Loft Roll 44 is 1140mm wide, easily divisible into either two 570mm wide sections for 600mm centres or three 380mm sections for 400mm centres.
  • Sustainable Materials: Manufactured using a bio-based binder, contributing to a lower environmental impact.
  • Vapour Resistant: Knauf Insulation Loft Roll 44 offers negligible resistance to the passage of water vapour, promoting better indoor air quality.
  • Comprehensive Performance: Knauf Insulation Loft Roll 44 offers good levels of thermal and acoustic insulation, as well as excellent fire safety.
  • Safe and Sustainable: Awarded the DECLARE 'Red List Free' label, guaranteeing it is free from harmful chemicals.

      Customisable Widths for Diverse Installation Needs

      Knauf Insulation Loft Roll 44 Combi Cut is designed with perforations that allow for effortless division, catering to different spacing requirements of loft joists.

      You will see this on the product description as ‘2 x 570mm / 3 x 380mm

      What does this mean?

      Knauf Insulation Loft Roll 44 Combi Cut comes in rolls which are 1140mm wide and features pre-marked perforations. This design enables you to tailor the insulation for:

      • 600mm Joist Centres: Tear along the perforation to divide the roll into two sections, each measuring 570mm in width. This size perfectly fits the commonly used 600mm spacing between joists, ensuring a snug and efficient fit.
      • 400mm Joist Centres: Alternatively, you can split the roll into three equal parts, each 380mm wide, ideal for smaller 400mm joist centres.

      This flexibility ensures that the insulation fits precisely, enhancing its effectiveness by eliminating gaps where heat could potentially escape.

      Thickness Options

      Area per roll
      100 12180 1140
      (2 x 570mm/3 x 380mm)
      2.25 13.89
      150 8050 1140
      (2 x 570mm/3 x 380mm)
      3.4 9.18
      170 7030 1140
      (2 x 570mm/3 x 380mm)
      3.85 8.014
      200 6000 1140
      (2 x 570mm/3 x 380mm)
      4.5 6.84

      Product Features

      Property Value
      Thermal Conductivity (W/mK)
      Euroclass Reaction to Fire Classification
      Roll Type
      Quantity per pack
      Vapour Resistivity 5.00MNs/g.m

      Installation Guide

      • First Layer Application: Begin by laying the first insulation layer between the ceiling joists.
      • Additional Layers: Add subsequent layers at right angles to joists, butt joining all edges to prevent thermal bridging and enhance thermal performance.

      Advantages of Knauf Insulation Loft Roll

      This insulation solution by Knauf Insulation provides a reliable and practical option for insulating lofts, combining ease of use with effective performance across thermal, acoustic, and fire safety standards. Ideal for projects requiring a cost-effective and flexible insulation material.


      COSHH - Click Here

      Data Sheet - Click Here


      Order Value Delivery Charge
      Up to £200.00 ex-vat £100.00 ex-vat
      £200.00 - £599.95 ex-vat £59.95 ex-vat
      Above £599.95 ex-vat Free Delivery


      Weekend Delivery
      Available upon request


      Parcel Rates
      Delivery charge may vary depending on quantity and volume of your order.
      Pricing will be calculated during checkout.


      Local Delivery Charge
      Within 35 miles of Postcode S63 9BL - Up to £500.00 ex-vat
      Delivery Charge £35.00 ex-vat
      Please contact us to arrange collections
      Tel: 0300 303 4578 | Email:


      Delivery charges will automatically be calculated within the checkout process.
      Orders are only processed for delivery between 8.00am - 5.00pm Monday to Friday excluding bank holidays.
      Moffett offload will be used for large bulky deliveries and only when agreed with you.
      Please advise of any access issues on ordering.
      Delivery is Kerbside only.
      In the unlikely event that your delivery is not correct or damaged please notify us immediately and mark any issues on the delivery slip.


        Where We Deliver

        Delivery Areas

        We have a fleet of FORS delivery vehicles all with Moffett mechanical off loads that deliver nationwide. Sometimes we may use 3rd party carriers for smaller orders.


          Product Delivery Times

          The vast majority of our orders are dispatched within 3 working days, this can however be up to 5 working days, please contact us if you require something urgent.
          Speciality items may take up to 5-7 working days.
          We will contact you with in 24/48hrs of your order been placed to confirm delivery times and dates.

            Enter the width(m) and length(m) of your project below:

            You may also like...

            Customer Reviews

            Based on 12 reviews

            Fast delivery, packages very well, secured and wrapped onto pallet. Great price and customer service. Would highly recommend!


            Fast delivery, delivered on pallets and very well secured. Great customer service and would highly recommended.

            Wayne Rhodes
            Knauf Insulation Loft Roll 44 Combi Cut

            Very good product reconmended

            douglas barrow
            Knauf Insulation Loft Roll 44 Combi Cut

            Swift delivery

            douglas barrow
            Knauf Insulation Loft Roll 44 Combi Cut

            Great product