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Material Sheet

Loft Insulation

What is it used for

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Residential Construction

Commonly used in lofts and attics to enhance thermal efficiency and reduce energy bills.

Commercial Buildings

Installed in large commercial properties to improve overall energy performance and comfort levels.

Retrofit Projects

Ideal for upgrading the insulation in existing buildings to meet current energy efficiency standards.

Brick Wall


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Length: Varies depending on product (typically 4000 mm to 8000 mm for rolls)

Width: Varies depending on product (typically 400 mm to 1200 mm)

Thickness: Varies from 100 mm to 300 mm

Weight: Varies based on material and thickness; approximately 10 kg to 30 kg per roll

What it’s Made From

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Made from fine glass fibers, known for its lightweight and effective thermal insulation properties.

Mineral Wool

Composed of rock or slag fibers, offers good thermal and acoustic insulation, and is fire-resistant.

Natural Fibers

Includes materials like sheep’s wool and cellulose, providing eco-friendly insulation options with good thermal properties.


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Fiberglass Loft Insulation

Description: Made from fine glass fibers, lightweight and effective thermal insulator.

Applications: Ideal for use in lofts and attics in both residential and commercial buildings.

Mineral Wool Loft Insulation

Description: Composed of rock or slag fibers, provides good thermal and acoustic insulation.

Applications: Suitable for areas requiring high fire resistance and soundproofing.

Sheep’s Wool Loft Insulation

Description: Natural insulation material offering excellent thermal properties and sustainability.

Applications: Used in eco-friendly building projects for loft and attic insulation.


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Tools Required

Utility knife | Measuring tape | Stapler | Protective gloves | Mask

Materials Required

Loft insulation material | Vapor barrier (if needed)

Step-by-Step Guide:

  1. Preparation: Measure the loft area and cut the insulation material to fit using a utility knife and measuring tape.

  2. Safety Gear: Wear protective gloves and a mask to avoid irritation from insulation fibers.

  3. Install Insulation: Lay the insulation between the joists, ensuring it fits snugly without gaps.

  4. Layering: For higher thermal efficiency, add a second layer of insulation across the joists.

  5. Vapor Barrier: Install a vapor barrier if required to prevent moisture buildup.

  6. Finishing: Check for any gaps or loose areas and ensure the insulation is securely in place.

Technical Specification

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Thermal Conductivity: 0.030 - 0.040 W/m·K

Fire Resistance: Fiberglass and mineral wool are non-combustible, natural fibers vary

Moisture Resistance: Generally high, but varies by material

Density: 10 - 30 kg/m³ depending on the material


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BREEAM: Certification for sustainable building products.

Energy Star: Certification for energy efficiency.

ISO 14001: Environmental management standards certification.

Purchasing Quantities

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Single Rolls

Ideal for small projects, repairs, or when only a limited amount of insulation is needed.


Typically sold in bulk, with each pallet containing multiple rolls. This option is suitable for medium to large construction projects.


Smaller quantities than pallets, often sold in bundles of 2, 4, or 6 rolls, suitable for minor projects or additions.

Environmental Impact

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Sustainability Considerations

Many products are made from recycled materials, such as recycled glass in fiberglass insulation.

Eco-friendly Alternatives

Natural fiber insulation options like sheep’s wool and cellulose are biodegradable and have a lower environmental footprint.

Waste Reduction

Insulation materials can often be recycled at the end of their life cycle, reducing landfill waste.

Energy Efficiency

Significantly improves the energy efficiency of buildings, leading to lower carbon emissions and energy bills.



Similar Materials

Natural Insulation
Natural Insulation


Insulation Board
Insulation Board


Wall & Cavity Insulation
Wall & Cavity Insulation


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