Knauf Loft Insulation Roll Floor Roof Lagging (3, 150mm)
Pros
- Bulk 3-roll pack covers a full loft in fewer deliveries
- Mineral wool construction gives solid thermal and acoustic performance
- Works for both roof lagging and suspended floor insulation
Cons
- Kerbside delivery only on bulky multi-roll packs
Specifications
- Material
- Mineral Wool
- Price tier
- Premium
- Size
- 150mm
How it compares in Loft & Wall Insulation
We list 20 loft & wall insulation products, priced from £15.98 to £563.00. At £152.59 this one is the 17th cheapest of them — 3 cost more. The average across the subcategory is £104.37 and the midpoint is £50.49, so it lands £48.22 above the average.
Its 3.8-star score sits 0.52 below the loft & wall insulation average of 4.32, with 17 of the 20 rated higher. Its 5 Amazon reviews make it the 17th most-reviewed here, against a subcategory average of 401.
Price position in Loft & Wall Insulation
Splitting the subcategory into three price bands puts this product in the Premium band (£84.99–£563.00), which holds 6 of 20 products and averages £247.99 at 4.13 stars.
| Band | Range | Products | Average price | Average rating |
|---|---|---|---|---|
| Budget | £14.38–£44.99 | 7 | £30.09 | 4.34 |
| Mid-range | £45.59–£64.99 | 7 | £53.22 | 4.46 |
| PremiumThis one | £84.99–£563.00 | 6 | £247.99 | 4.13 |
About this product
Knauf Loft Insulation Roll Floor Roof Lagging offers a comprehensive solution for improving thermal performance within pitched roofs and suspended floors. Designed for installers and homeowners seeking to reduce heat loss and lower energy bills, this roll insulation is ideal for creating a comfortable and efficient living space.
This product provides significant benefits through its construction – laid in two layers at right angles to the joists, it delivers substantial lagging across ceilings. The innovative ECOSE Technology ensures a gentler installation experience compared with traditional options, reducing discomfort during fitting. Its robust mineral wool construction guarantees solid thermal and acoustic performance, while also providing inherent fire protection.
The roll’s properties – odourless, rot-proof, and resistant to pests – contribute to a healthier indoor environment. Furthermore, the product's lightweight nature simplifies handling and reduces delivery requirements, particularly beneficial when purchasing bulk packs. This insulation quilt is designed for both roof lagging and suspended floor insulation projects, offering versatility and efficiency.
Consider your loft space’s dimensions carefully when calculating coverage; the roll provides excellent value but should be matched to your specific needs. It's a premium product focused on delivering long-term savings and enhanced comfort, representing an investment in sustainable energy performance.
Related attributes
FAQ
What is this Knauf Loft Insulation Roll best suited for?
This roll insulation is primarily designed for thermal insulation within pitched roofs at ceiling level and can also be used to insulate floors. It’s particularly effective when installed in two layers, with the first layer between joists and a second layer perpendicular to them, maximizing its performance.
What materials is this product made from?
The insulation roll is constructed from mineral wool, offering thermal and acoustic properties. It’s also formulated with ECOSE Technology, making it softer to handle than traditional mineral wool and free from harmful substances.
What are the dimensions of a single roll?
A single roll measures 120 centimetres in length and 40 centimetres in width. This provides coverage based on the thickness used, as detailed in the product’s coverage data.
How much area does a 150mm thick roll cover?
A 150mm thick roll covers approximately 9.18 square metres. This is important to consider when calculating the amount needed for your loft or floor space.
Can this insulation be used as an alternative to fibreglass?
Yes, this mineral wool roll offers a significantly improved installation experience compared to traditional fibreglass insulation due to its ‘Very Low Itch’ properties. This makes it easier and more comfortable to handle during the fitting process.
How does the price of this Knauf roll compare to other similar products?
This roll falls into a premium pricing tier, reflecting its high-quality mineral wool construction and features like ECOSE Technology. While more expensive than basic fibreglass options, it offers superior thermal and acoustic performance.
What are the recommended installation guidelines?
It's generally advised to install two layers of this roll insulation, with the first layer between the joists and a second, perpendicular layer on top. This layering technique maximizes its thermal effectiveness.
Are there any specific safety considerations when using this insulation?
This roll is non-combustible and offers fire performance. However, as with all insulation materials, it’s important to avoid prolonged skin contact and ensure adequate ventilation during installation.
What type of delivery does this product come with?
This roll insulation is delivered kerbside only, particularly for the bulk multi-roll packs. Please ensure you have a suitable method to move it from the drop-off point to your loft or floor.
What is the warranty information for this product?
Please refer to the manufacturer’s warranty details, which are provided by Knauf, regarding any potential issues with the insulation roll. Amazon’s standard returns terms apply to purchases made through their platform.
£152.59
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