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About Our Floor, Loft & Wall Insulation
Effective floor, loft, and wall insulation plays a major role in improving thermal performance, controlling heat loss, and supporting compliance with modern building standards. Whether you’re working on a new build, extension, conversion, or retrofit project, choosing the correct insulation helps improve comfort, reduce energy demand, and deliver excellent performance.
Different areas of a building present different challenges. Floors require insulation that supports load and minimises cold transfer, loft spaces benefit from materials that are easy to install across large areas, and walls demand solutions that balance thermal efficiency with build up thickness. Our insulation range is structured to support these varied applications while keeping selection clear and practical.
Insulation Range For Floors, Lofts, and Walls
Our insulation offering covers commonly specified materials used across residential and commercial construction. Each type is suited to particular applications and installation methods, allowing you to select products based on performance requirements and site conditions.
PIR Insulation
PIR insulation is widely used where high thermal performance is required within a relatively slim build up. Foil faced PIR boards deliver excellent insulation values, making them suitable for floors, walls, and roofs where space is limited. They are commonly installed beneath screeds, between joists, or as part of internal wall upgrades.
PIR boards are rigid, easy to cut accurately, and straightforward to fix, helping maintain consistent coverage across large areas. Their foil facing also supports vapour control when detailed correctly, contributing to overall building performance. A wide range of board thicknesses allows installers to meet specific U value targets without unnecessary material build up.
Mineral Wool Loft And Cavity Insulation
Mineral wool loft and cavity insulation remains a popular choice for both thermal and acoustic performance. In loft spaces, mineral wool rolls are easy to lay between and over joists, making them ideal for improving insulation levels quickly and efficiently. They adapt well to irregular spaces and services, helping achieve consistent coverage.
Within walls, mineral wool is commonly used for cavity insulation and internal partitions, where it also provides sound absorption benefits. Acoustic mineral wool is frequently specified in separating walls and floors to reduce noise transfer, particularly in multi occupancy buildings and conversions. Its flexibility and ease of handling make it suitable for both new installations and retrofit work.
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Selecting the right insulation depends on the area being insulated, the target performance level, and the construction method being used. Thickness, fixing method, and compatibility with surrounding materials all need to be considered to avoid cold bridging or installation issues later in the build. Read our guide to insulation in Northern climates for expert advice from the Builders Supply team.
If you need advice on floor, loft, or wall insulation, board thickness, or product suitability, get in touch and speak with our team. We’ll help you select the right insulation solution to support performance, compliance, and a smooth installation on site. Fast local delivery and collection options are available.