Isover Insulation

Building Materials Nationwide offers a range of Isover insulation products, including high-quality slab and roll insulation for both domestic and commercial use. Isover is a globally recognized manufacturer of glass mineral wool products, delivering superior acoustic and thermal insulation. These sustainable, long-lasting products are available at competitive prices.

If you're insulating a loft, partition wall, or cavity, we stock Isover insulation solutions that conserve heat while providing excellent environmental benefits—an important factor for many homebuyers. Isover also produces acoustic insulation products to reduce noise transfer within buildings.

Our selection includes Isover Spacesaver Loft Rolls, a low-density glass mineral wool product ideal for cold roof applications in new builds and renovations. These rolls are designed to fit between ceiling joists and offer great winter performance. Made from up to 86% recycled glass, they are an eco-friendly choice, easy to handle, and available in various sizes and thicknesses to meet your project needs.

We also offer Isover Acoustic Partition Rolls, which provide exceptional sound insulation for walls and floors in both residential and commercial buildings. When used with British Gypsum systems, these rolls come with a guaranteed lifetime performance. Like the loft rolls, they are made from 86% recycled materials, have a global warming potential of less than 5, and feature an A1 Euroclass fire rating. Thicknesses are available up to 100mm.

Our Isover CWS36 cavity wall insulation range is BBA-certified and offers outstanding thermal and acoustic performance. Made from 75% recycled glass wool, it’s designed for installation during construction and is available in various widths and pack sizes. The CWS36 is a premium option for cavity wall insulation needs.

If you're looking for a specific Isover product not listed on our website, our team is here to help. At Building Materials Nationwide, we go the extra mile to source specialist products for our customers.

We offer everything a builder needs in one convenient place. Our trade account holders benefit from a dedicated account manager available via phone and email, ready to assist with product queries, support, or sourcing special orders. While our website features a wide selection of Isover products, we understand that some projects require specific solutions—and we’ll do our best to find them for you.

We provide same-day or next-day delivery across the UK whenever possible, helping contractors of all sizes get the materials they need, quickly and without hassle. With competitive prices, expert support, and nationwide delivery, we aim to simplify the building materials supply process.

Sign up for a trade account through our website today to access a dedicated account manager, our full product range, and fast delivery options.