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Knauf  |  SKU: 48420516888923

Knauf Loft Roll 40 - All Thicknesses


£35.58 GBP
VAT and Shipping calculated at checkout.

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Returns

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Product Datasheets

Product Datasheet:

Knauf Loft Roll 40 Datasheet

Declaration of Performance:

Knauf Loft Roll 40 DoP

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Things you should know about this product!

  • This product is sold by the pack
  • This product is available in the following thicknesses: 100mm, 150mm and 200mm

Description

Knauf Loft Roll 40 is a glass mineral wool roll designed for insulating cold pitched roofs at ceiling level, with a thermal conductivity of 0.040 W/mK. It offers the best thermal performance in our Loft Roll range. Loft Roll 40 is non-combustible with the best possible Euroclass A1 reaction to fire classification and is manufactured using our unique bio-based binder, ECOSE® Technology.

Specifications

  • Length
    Varies depending on thickness
  • Width
    1140mm
  • Material type
    Glass mineral wool
  • Thermal conductivity
    0.040 W/mK
  • Fire rating
    Euroclass A1

Key Features

  • Cost effective solution for cold lofts where the thickness of insulation is unrestricted.
  • Combi-cut products are supplied partially perforated, allowing them to be used between joists or uncut as a full-width roll, maximising efficiency during installation.
  • Manufactured in two different options; long lengths to allow quick and simple installation maximising efficiency.

Where to use

Pitched roofs: Knauf Loft Roll 40 is an excellent insulation solution for pitched roofs due to its superior thermal performance, ease of installation, and eco-friendliness. This glass mineral wool insulation roll provides exceptional thermal efficiency, significantly reducing heat loss and lowering energy bills. Its lightweight and flexible nature allows for easy handling and installation, making it ideal for both DIY projects and professional use. The roll is non-combustible and offers excellent fire resistance, enhancing building safety. Made from up to 80% recycled materials, Knauf Loft Roll 40 is also an environmentally responsible choice. Its durability ensures long-term performance, making it a reliable and efficient option for pitched roof insulation.

Frequently asked questions

Does Knauf Loft Roll 40 require any special maintenance?

Generally, insulation rolls like Knauf Loft Roll 40 do not require special maintenance once installed. However, ensuring the loft space is dry and well-ventilated will help maintain the insulation’s effectiveness.

How durable is Knauf Loft Roll 40?

Knauf Loft Roll 40 is highly durable and has a long service life. It is resistant to aging, moisture, and does not sag over time when properly installed.

How should Knauf Loft Roll 40 be installed?

Installation involves laying the rolls directly between and over the ceiling joists or rafters in the loft space. The rolls can be cut to fit the specific dimensions of the space and should be installed without gaps to minimise thermal bridging.

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Compare with similar products

You are currently viewing the first product on this grid:

A table comparing the facets of 2 products
Facet
Knauf Loft Roll 40 - All Thicknesses
View details
Knauf Loft Roll 44 - All Thicknesses
View details
Price
Price
From £30.60 GBP
From £28.00 GBP £32.84
Length
Length
Varies depending on thickness
Varies depending on thickness
Width
Width
1140mm
1140mm
Edge
Edge
n/a
n/a
Fire rating
Fire rating
Euroclass A1
Euroclass A1
Compressive strength
Compressive strength
n/a
n/a
Thermal conductivity
Thermal conductivity
0.040 W/mK
0.044 W/mK
Material type
Material type
Glass mineral wool
Glass mineral wool

Customer Reviews

Based on 1 review
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T
Tayo Akinbolaji (Wandsworth, GB)

its quite thick, so looking forward to see how they perform during colder months

Knauf
Knauf Loft Roll 40 - All Thicknesses
From £30.60 GBP

Length

Varies depending on thickness

Width

1140mm

Edge

N/A

Fire rating

Euroclass A1

Compressive strength

N/A

Density

N/A

Thermal conductivity

0.040 W/mK

Material type

Glass mineral wool
View product