Knauf Loft Insulation Roll

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Knauf Loft Insulation is a high-performance solution specifically designed for the thermal insulation of pitched roofs at ceiling level. Known for its versatility and durability, Knauf Loft Insulation rolls adhere to rigorous environmental and safety standards, making them a reliable choice for both residential and commercial applications.

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What Is Knauf Loft Insulation Roll? 

Knauf Loft Roll 44 is an advanced insulation solution, purpose-built for insulating pitched roofs (at ceiling level) and floor applications.

Loft Roll 44's core material is a flexible yet non-combustible glass mineral wool quilt, engineered to provide lasting durability. With a generous width of 1140mm, it accommodates diverse spaces while adhering to stringent British and European standards.

These 1140mm wide short-length rolls are supplied partially perforated to produce either 2 rolls 570mm wide or 3 rolls 380mm wide.

When strategically installed in dual layers, and sandwiched between timber joists spaced at either 400mm or 600mm intervals, it becomes a powerful ally in optimising thermal efficiency within your living space.

Knauf loft insulation rolls are easier to install correctly than other insulants such as rigid boards because they adapt to any slight imperfections in the substrate and knit together, eliminating any air gaps.

What's more, the ECOSE technology used in Knauf loft insulation's manufacture ensures they are a lot softer and easier to handle than standard loft insulation

Where Is Knauf Loft Insulation Roll Used? 

Knauf Loft Insulation Roll 44's primary use is for the thermal insulation of pitched roofs at ceiling level, although it can also be used to thermally insulate floors.

Primary Applications: 

  • Pitched roof applications - ceiling level (cold lofts)
  • Floors

When used at ceiling level it is usually laid in two layers, with the first layer between the joists and the second layer over, and at right angles to the joists. 

Knauf Loft Insulation Roll 44 Features & Benefits

  • Excellent thermal performance
  • Improves the thermal and energy efficiency in your home
  • Odourless, rot-proof and non-hygroscopic
  • Does not sustain vermin nor encourage the growth of fungi, mould or bacteria
  • Contains no ozone-depleting substances or greenhouse gases
  • Euroclass A1 reaction to fire classification
  • Knauf Insulation is a market leader in loft insulation
  • Compression-packed and lightweight for easy handling and moving around a site
  • Helps to save on your house energy bills

Knauf Loft Insulation Roll 44 Insulation Certifications

  • Generic BRE Green Guide Rating A+
  • Classified as Zero ODP (Zero Ozone Depletion Potential) and Zero GWP (Zero Global Warming Potential)
  • A1 Euroclass Fire Rating
  • Manufactured in accordance with BS EN 13162
  • Awarded the DECLARE `Red List Free’ label - meaning no 'Red List' ingredients, including formaldehyde or phenol

How to Install Knauf Loft Insulation Roll

To begin, ensure that the loft space is clear of any debris or obstructions. Start at one end of the loft and unroll the insulation across the joists, making sure to cut it to the desired length using a sharp utility knife.

Take care to avoid compressing the insulation, as this can reduce its effectiveness. If necessary, additional layers can be installed perpendicular to the first layer to achieve the desired thermal performance.

Remember to insulate around any pipes, cables, or electrical fixtures using specialised insulation products to maintain safety.

Once the installation is complete, check for any gaps or areas that may need further attention, and ensure that the insulation is evenly distributed across the loft space.

It is recommended to wear appropriate protective clothing, such as gloves and a dust mask, during the installation process.

Knauf Loft Insulation Roll - Safety Considerations

During the installation process, it is crucial to handle the insulation with care and follow recommended safety guidelines. 

Always wear appropriate protective equipment, such as gloves and a dust mask, to minimise exposure to any potential irritants. 

Take necessary precautions when working around electrical fixtures, ensuring that insulation is properly installed and does not come into direct contact with any wiring or fittings. 

Additionally, it is essential to maintain proper ventilation in the loft space to allow for adequate air circulation. 

Frequently Asked Knauf Loft Roll Questions

How Many Knauf Loft Insulation Rolls Do I Need for My Loft?

There is no definite answer to this question. Each loft has different dimensions and therefore, different insulation needs. 

We suggest that you measure the width and length of the areas that you want to insulate to work out the m2. Then divide the total number of m2 by the size of the roll. From this, you can work out how many rolls you would need. 

We always recommend allowing between 5-10% for wastage. We also recommend using good-quality rolls that come pre-perforated. Pre-perforated rolls allow you to choose between using the roll as a full-width roll or splitting it into a length that better suits your needs.

How Do Knauf Loft Insulation Rolls Work?

Around 25% of the heat in an uninsulated home escapes through the roof. In order to best determine which insulation option is for you, it's important to understand how loft insulation works and where heat escapes from your home (e.g. windows, doors, walls).

Most loft insulation works by trapping heated air within the fibres of the material's matting, preventing it from moving through the material. Consequently, ensuring that your loft's insulation is properly installed is key to its efficiency.

Can Knauf Loft Insulation Rolls Still Be Installed If I Have Down Lights?

Although you might think that having downlights installed would make it harder to insulate your loft, actually, installers will just cut around the fixtures and make sure that they're covered with a cap.

What Is The Recommended Knauf Loft Insulation Roll Depth? 

Between 270-300mm.

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