The 100mm Superglass loft insulation roll is a practical and efficient choice for anyone looking to improve thermal performance in a loft or cold roof space. Supplied in a roll covering 12.12m², this 100mm loft insulation is easy to handle and simple to fit.

Made from flexible, non-combustible glass mineral wool, the insulation is perforated to suit standard joist widths, helping speed up installation and reducing the need for cutting on site. It can also be used as a full-width layer over joists, making it versatile for different project needs. Whether you're insulating a new build or topping up an existing loft, this 100mm loft insulation roll is a reliable option.

Though it's most commonly used as loft insulation 100mm, it’s also suitable for other areas like suspended timber ground floors or cold pitched roofs. The product comes wrapped in fully recyclable low-density polyethylene, helping to reduce environmental impact.

With strong thermal performance and manufactured to ISO 9001 and ISO 14001 standards, Superglass 100mm loft insulation is a trusted choice for energy efficiency and quality.

At Mitcham Builders Merchants, we keep this product in stock and ready to go, whether you're collecting in-store or ordering online. We’re proud to be South London’s largest independent builders merchant, offering same and next day delivery options depending on your location.

Need help choosing the right insulation? Our knowledgeable team is always available to guide you. We’ve got all your building supplies under one roof, making it easy to get what you need, when you need it.