Glass Wool Insulation

Glass mineral wool insulation from URSA and ODE – loft roll, cavity batts, timber-frame rolls and acoustic partition roll – at trade prices, delivered to England and Wales in 2–3 working days.

Choosing mineral wool

  • Loft roll: URSA 10 Diverso (150mm and 200mm) and ODE Lunaflex Loft Roll Ultra 42 (100mm, 150mm and 200mm). For a typical loft, lay a first layer between the joists and a second layer across them to reach around 270–300mm in total.
  • Cavity batts: URSA Cavity Batt 32 and 35, 1350 × 455mm, 75–150mm, for full-fill masonry cavity walls.
  • Timber frame and stud walls: URSA Frametec 32 and 35 rolls in 90mm and 140mm.
  • Acoustic partition roll: URSA Acoustic Roll and ODE Lunaflex APR HP, 25–100mm, for metal or timber stud partitions, plus URSA Party Wall Roll.

The number in names like Cavity Batt 32 or Frametec 35 is the thermal conductivity (0.032, 0.035 W/mK) – lower means better insulation per mm. Planning a stud wall? Our drywall partition calculator includes acoustic roll. For stone wool slabs see Rockwool acoustic insulation.

Delivery: prices are ex VAT. We deliver to England and Wales in 2–3 working days – free on orders over £500 ex VAT, £50 below that, with a £400 minimum order.

29 products

  • Exceptional Thermal Insulation
    Glass wool is designed to minimise heat loss and maintain optimal indoor temperatures. With its high thermal resistance, it’s a dependable solution for conserving energy, reducing heating and cooling costs, and enhancing overall comfort. Whether it’s walls, roofs, or floors, glass wool helps achieve impressive thermal performance and energy savings.
  • Outstanding Acoustic Performance
    Ideal for acoustic partition walls or floors, glass wool insulation significantly reduces sound transmission, creating quieter living or working environments. This makes it an excellent choice for residential homes, schools, offices, and other noise-sensitive spaces.
  • Environmentally Friendly and Sustainable
    Crafted from up to 80% recycled glass, glass wool insulation contributes to building sustainability. Using recycled materials not only reduces waste but also aligns with environmental targets, making it a responsible choice for construction projects.
  • Fire Safety Characteristics
    With its non-combustible nature and high fire resistance, glass wool insulation meets strict building regulations and standards. It adds a layer of safety, giving you peace of mind in both residential and commercial settings.
  • Glass Mineral Wool Rolls
    Produced in flexible rolls, glass wool is perfect for insulating long spans like lofts or walls. The material is easy to roll out and cut to the required size for precise installation.
  • Batts and Slabs
    Designed for cavity wall and acoustic partitions, these pre-cut pieces are high-density and ideal for providing exceptional performance in smaller areas or specific spaces.
  • Blown or Sprayed Application
    For hard-to-reach spaces or irregularly shaped cavities, blown or sprayed glass wool is an effective insulating option. This ensures even coverage with minimal gaps.
  • Cavity Wall Insulation
    Glass wool rolls or batts are a cost-effective and efficient way to insulate cavity walls, reducing heat loss and improving thermal efficiency.
  • Roof and Loft Insulation
    Whether for pitched roofs or flat roofs, glass wool delivers excellent thermal insulation and is easy to install between timber joists or rafters.
  • Floor Insulation
    For homes with timber or concrete floors, glass wool helps minimise temperature fluctuations and improve energy efficiency while also reducing sound transfer between levels.
  • Acoustic Insulation
    Used in walls, ceilings, or partitions, glass wool enhances acoustic comfort by absorbing sound waves, making it an excellent choice for multi-occupancy buildings.
  • Industrial and Commercial Use
    Glass wool slabs are suitable for high-performance requirements in commercial or industrial settings, offering both thermal and acoustic benefits.
  1. Energy Efficiency
    Glass wool reduces heat loss and helps to maintain optimal temperatures, significantly lowering energy bills and supporting energy conservation.
  2. Lightweight and Easy to Install
    Thanks to its lightweight and flexible nature, glass wool is easy to cut, handle, and fit, making installation quick and hassle-free.
  3. Versatility
    Available in various forms like rolls, batts, slabs, or blown insulation, glass wool adapts to virtually any space or application.
  4. Durability and Long-Lasting Performance
    Manufactured to withstand temperature variations and environmental factors, glass wool offers reliable performance over time.
  5. Health and Safety Approved
    Modern glass wool products are designed with user safety in mind, featuring low-irritation binders and compliance with strict health standards.
  • For Cavity Walls: Measure the dimensions of the cavity and cut the insulation to size. Batts and slabs are ideal for this application. Ensure the material fits snugly between wall studs to prevent air gaps.
  • For Roofs and Lofts: Rolls can be unfurled and placed between rafters or joists, while additional layers can be applied to enhance thermal resistance. Always ensure good ventilation in loft spaces to prevent moisture build-up.
  • For Acoustic Partitions: Use slabs or batts placed tightly within stud walls to maximise sound absorption. Pair with acoustic boards for superior noise control.
  • For Floors: Fit glass wool between timber joists before adding floorboards or OSB sheets. For concrete floors, lay the insulation beneath the screed for optimal performance.