Loft Insulation Roll

Loft insulation is a type of thermal insulation typically used in buildings to improve energy efficiency and reduce heat loss. Most modern loft insulation is made from mineral wool, which consists of tightly packed mineral fibers, usually made from materials like rock or glass, which create a barrier against heat transfer. This insulation is commonly installed in the loft or attic spaces of homes, laid between ceiling joists or rafters, to prevent heat from escaping through the roof. Mineral wool loft insulation is known for its excellent thermal performance, fire resistance, and sound absorption properties, making it a popular choice for both residential and commercial construction projects aiming to enhance comfort and energy savings.

We offer our Loft Insulation Rolls in a range of thicknesses:

100mm, 150mm, 170mm, 200mm.

Designed to fit the depth of your ceiling joists. Loft insulation Roll is unique in that it is perforated at multiple points along the breadth of the roll, to allow you to split them to fit the width of the space as required, or leave as full sheets. 

To install loft roll insulation, first, ensure safety gear like gloves, goggles, and a mask are worn. Measure the distance between the joists in the loft space and cut  or separate the insulation rolls accordingly. Unroll the insulation and fit it snugly between the joists, ensuring there are no gaps or spaces. Use a utility knife to trim any excess insulation if necessary. Take care not to compress the insulation excessively, as this can reduce its effectiveness.

Our Knauf insulation is Knauf's Loft Roll 44, which is one of the most popular types of loft insulation and is sold in a variety of thicknesses from 100mm to 200mm to best suit your project. It is sold in a single roll that is perforated along it's length to allow it to be split into 2 x 570mm width or 3 x 380mm width pieces, depending on the size of your joist cavity. Knauf Loft insulation has a thermal conductivity of 0.044y W/mK and a fire rating of Euroclass A1.

Isover is an effective loft insulation roll made from glass mineral wool that is sold in a continuous roll. Similar to Knauf loft insulation roll, it is pre-perforated (3 x 386mm or 2 x 580mm widths) to allow you to adjust it to the spacing between your joists.

Your loft represents one of the most significant opportunities for energy savings in any property. Heat naturally rises, and without proper insulation, you're literally watching your money disappear through the roof. Our carefully selected range of loft insulation roll products offers the perfect solution, whether you're tackling a weekend DIY project or undertaking a comprehensive home renovation.

We stock premium insulation rolls from Britain's most trusted manufacturers, including Knauf Earthwool, Isover Spacesaver Plus, and Rockwool RW3. Each product in our collection has been chosen for its exceptional thermal performance, ease of installation, and proven durability in UK climate conditions.

Expert-Selected Products for Maximum Performance

Knauf Earthwool rolls deliver outstanding thermal efficiency with their unique ECOSE technology, providing excellent coverage whilst being pleasant to handle. The 100mm and 150mm thickness options ensure you can achieve the recommended 270mm total loft insulation depth when used alongside existing materials.

Our Isover Spacesaver Plus range offers exceptional value, with its compressed packaging making transport and storage incredibly convenient. Once unrolled, it expands to full thickness, delivering reliable thermal performance that meets all current building regulations.

For superior fire resistance and acoustic performance, Rockwool RW3 mineral wool rolls provide unmatched safety credentials alongside excellent thermal properties. These rolls are particularly popular with trade professionals who demand consistent, reliable performance.

Your Thermal Efficiency Partners

Achieving optimal loft insulation isn't just about buying the right product – it's about understanding your specific requirements. Our technical team provides free U-value calculations and condensation risk assessments, ensuring you select the perfect specification for your property.

Whether you need 100mm rolls to top up existing insulation or 150mm rolls for comprehensive coverage, we'll help you calculate exactly what you need. Our experience shows that most UK homes require approximately 7-8 rolls per 50m² of loft space, though we'll provide precise calculations based on your measurements.

Why thousands of customers choose DIY Building Supplies:

• Expert guidance from our qualified technical team
• Premium brands from trusted UK manufacturers
• Competitive pricing with bulk discounts available
• Fast delivery across mainland UK
• Technical support throughout your project

Ready to transform your home's energy efficiency? Our team is standing by to help you select the perfect loft insulation roll solution. Call us today or browse our complete range online – because every degree matters, and every penny saved counts.

Contact our insulation specialists for free technical advice and quotations tailored to your specific project requirements.