Isover APR 1200 is a high-performance glass mineral wool roll designed specifically for acoustic insulation in internal partitions and floors. Whether you're working with metal or timber stud walls or insulating between timber joist floors, this insulation helps reduce sound transmission throughout the building.
To make installation easy and efficient, the roll is supplied pre-cut into two 600mm widths—perfect for friction fitting between standard 600mm stud centres, minimising gaps and reducing the need for trimming on-site. Ideal for
building insulation applications, this product helps create an efficient thermal envelope. It also works seamlessly with
insulation systems.
Key Product Features
Supplied in 1.2m wide rolls, pre-cut into 2 x 600mm strips
Manufactured using up to 82% recycled glass
Achieves Eurofins Indoor Air Comfort Gold Certification—the highest standard for indoor air quality
Rated Euroclass A1 for fire safety in accordance with EN 13501-1
Available in multiple thicknesses ranging from 25mm to 100mm, Isover APR 1200 can suit a range of acoustic and thermal requirements. Each roll delivers excellent coverage and is lightweight, easy to transport, and hassle-free to install.
Performance and Benefits
This insulation roll is not just about comfort—it also contributes to acoustic control, helping to reduce noise transfer between rooms. When used in conjunction with British Gypsum internal wall or floor systems, it can significantly improve sound insulation levels, which is particularly useful in multi-occupancy buildings, offices, or residential homes.
In addition to acoustic performance, Isover APR 1200 meets Euroclass A1 fire safety standards, meaning it's non-combustible and ideal for projects where fire resistance is a priority.
With a focus on sustainability, the product is manufactured using all-electric equipment powered by 100% renewable energy, and the insulation contains up to 82% recycled content. It’s also part of systems covered by the British Gypsum SpecSure® Warranty, guaranteeing performance for the building’s lifetime when used within specified systems.
Easy to Install
Whether you're a professional installer or a capable DIYer, Isover APR 1200 is straightforward to handle, cut, and fit. Thanks to its pre-cut widths, the rolls can be quickly friction-fitted between studs, minimising cutting, waste, and installation time. Any off-cuts can usually be reused within the same project.
Available Sizes
25mm thickness – 24.00 m² per roll
50mm thickness – 15.60 m² per roll
65mm to 100mm thicknesses – various coverage amounts
All rolls come in lengths suited for simple handling and wide area coverage.
Frequently Asked Questions
1. Can Isover APR 1200 be used for both walls and floors?
Yes, absolutely. It’s designed for a variety of internal applications including **partition walls**, **timber and metal stud systems**, and **internal floors**, offering both **thermal and acoustic performance**.
2. Is it safe to use in buildings where fire performance is important?
Yes. Isover APR 1200 has a **Euroclass A1 Reaction to Fire rating**, which is the highest level of fire safety classification in Europe. This makes it suitable for use in areas where **fire resistance is critical**.
3. How environmentally friendly is this insulation?
Isover APR 1200 is made from up to **82% recycled glass** and the production plant is powered by **100% renewable electricity**. It also holds **Eurofins Indoor Air Comfort Gold certification**, meaning it contributes positively to **indoor air quality**.
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