Knauf Insulation Loft Roll 44 100mm (13.885m²)
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Knauf Insulation Loft Roll 44 100mm (13.885m²)
(Approx. 3-5 working days)


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Knauf Loft Roll 44 Ready Cut 100mm is a glass mineral wool insulation roll designed for thermal insulation in cold pitched roofs at ceiling level. It is supplied in a ready-cut format for straightforward installation between timber joists, typically spaced at 600mm centres.
This insulation roll provides a thermal conductivity of 0.044 W/mK and achieves a Euroclass A1 reaction to fire classification, meaning it is non-combustible. Manufactured using ECOSE® Technology, a plant based binder, it contains up to 80% recycled content and is free from added formaldehyde or phenol.
The product is odourless, rot-proof, non-hygroscopic, and does not sustain vermin, ensuring a long service life equivalent to the building structure. It is compression packed for easier handling and storage on-site.
- Thermal conductivity of 0.044 W/mK for energy efficiency
- Euroclass A1 non-combustible for fire safety
- Ready-cut to fit 600 mm joist centres for quick installation
- Made with ECOSE® Technology and up to 80% recycled content
- Complies with BS EN 13162:2012+A1:2015 standards
| Brand | Knauf Insulation |
|---|---|
| Width | 1140 mm |
| Acoustic | No |
| Applicable Standards | BRE Green Guide Rating A+, Declare Red List Free |
| Combi Cut Width | 2x570/3x380 |
| Coverage | 13.885 m² |
| Fire Rating | Euroclass A1 |
| Fire Resistant | Yes |
| Length | 12.18 m |
| Moisture Resistant | Yes |
| Weight | 13.052 kg |
| R-Value | 2.25 m2K/W |
| Sold Per | Roll |
| Suitable For | Pitched roofs at ceiling level |
| Thermal Conductivity | 0.044 W/mK |
| Thickness | 100 mm |
| Usage | Internal Use |
| Material | Glass mineral wool |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
Knauf Loft Roll 44 Ready Cut 100mm is a glass mineral wool insulation roll designed for thermal insulation in cold pitched roofs at ceiling level. It is supplied in a ready-cut format for straightforward installation between timber joists, typically spaced at 600mm centres.
This insulation roll provides a thermal conductivity of 0.044 W/mK and achieves a Euroclass A1 reaction to fire classification, meaning it is non-combustible. Manufactured using ECOSE® Technology, a plant based binder, it contains up to 80% recycled content and is free from added formaldehyde or phenol.
The product is odourless, rot-proof, non-hygroscopic, and does not sustain vermin, ensuring a long service life equivalent to the building structure. It is compression packed for easier handling and storage on-site.
- Thermal conductivity of 0.044 W/mK for energy efficiency
- Euroclass A1 non-combustible for fire safety
- Ready-cut to fit 600 mm joist centres for quick installation
- Made with ECOSE® Technology and up to 80% recycled content
- Complies with BS EN 13162:2012+A1:2015 standards
| Brand | Knauf Insulation |
|---|---|
| Width | 1140 mm |
| Acoustic | No |
| Applicable Standards | BRE Green Guide Rating A+, Declare Red List Free |
| Combi Cut Width | 2x570/3x380 |
| Coverage | 13.885 m² |
| Fire Rating | Euroclass A1 |
| Fire Resistant | Yes |
| Length | 12.18 m |
| Moisture Resistant | Yes |
| Weight | 13.052 kg |
| R-Value | 2.25 m2K/W |
| Sold Per | Roll |
| Suitable For | Pitched roofs at ceiling level |
| Thermal Conductivity | 0.044 W/mK |
| Thickness | 100 mm |
| Usage | Internal Use |
| Material | Glass mineral wool |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
ECOSE® Technology
Bio-based binder with no added formaldehyde. Softer to handle, less dusty, and low VOC.
Euroclass A1 Fire Rating
Non-combustible insulation providing the highest level of fire performance and safety.
Combi-Cut Design
Partially cut to fit precisely between both 400mm and 600mm joist centres.
High Thermal Performance
Thermal conductivity of 0.044 W/mK significantly reduces heat loss through the roof.
Revolutionary ECOSE® Technology
Knauf’s unique ECOSE® Technology sets a new standard in mineral wool insulation. Manufactured using a bio-based binder derived from rapidly renewable materials, it contains no added formaldehyde or artificial colours.
For installers and DIYers, this means the insulation is noticeably softer to the touch, produces significantly less dust, and is completely odourless. It contributes to superior indoor air quality and is backed by the Eurofins Gold Certificate for Indoor Air Comfort.
Effortless "Combi-Cut" Installation
Time is money on site, and tight loft spaces can make cutting insulation difficult. Loft Roll 44 features a smart "combi-cut" design—it arrives partially perforated.
With a simple tear, you can split the 1140mm wide roll into either two 570mm rolls or three 380mm rolls. This allows for a perfect, friction-fitted snug install between standard 400mm or 600mm timber joists without the need for extensive measuring or cutting tools, dramatically reducing on-site waste.
Unrivalled Fire Safety & Efficiency
A poorly insulated roof can account for up to 25% of a home's heat loss. With a thermal conductivity of 0.044 W/mK, the Knauf Loft Roll 44 traps heat effectively, keeping your property warmer in the winter and cooler in the summer while lowering carbon emissions.
Furthermore, safety is paramount. This insulation holds the elite Euroclass A1 Reaction to Fire rating. As a completely non-combustible material, it will not contribute to the development or spread of a fire, providing total peace of mind for homeowners.
Technical Specifications
| Product Code / Material | Loft Roll 44 / Glass Mineral Wool |
|---|---|
| Thickness | 100mm |
| Roll Width | 1140mm (Combi-cut to 2 x 570mm or 3 x 380mm) |
| Roll Length | 12.18m |
| Pack Coverage Area | 13.89 m² |
| Thermal Conductivity | 0.044 W/mK |
| Thermal Resistance (R-Value) | 2.27 m²K/W |
| Reaction to Fire | Euroclass A1 (Non-combustible) |







