.jpg)
.jpg)
1 Review
View Product Reviews25mm Knauf Acoustic (APR) Insulation Roll (26.64m2/Roll)
Coverage required
Acoustic glass mineral wool roll for stud partitions and separating floors. Suitable for timber and metal stud walls at 600mm centres. 25mm thickness used for basic sound control in internal walls.
Express Delivery
Fri 19 Sep
Standard Delivery
Mon 22 Sep
- 0days
- 16hrs
- 39mins
- 21secs
Learn more
Pay in 3 interest-free payments
Split your purchase of £45.29 into 3 with no sign-up fees or late fees.
£15.10
today
£15.10
1 month
£15.10
2 months
How it works
- Choose PayPal at checkout to pay later with Pay in 3.
- Complete your purchase with the first payment today.
- Remaining payments are taken automatically.
Pay in 3 is a form of credit, so carefully consider whether the purchase is affordable and how you will make the repayments. Be aware of the possible impact of using Pay in 3 and of missing payments, including making other borrowing more difficult or more expensive. Pay in 3 eligibility is subject to status and approval. 18+ UK residents only. Available for purchases of £30 to £2,000. Terms and conditions apply. PayPal Pay in 3 is a trading name of PayPal (Europe) S.à r.l. et Cie, S.C.A. 22-24 Boulevard Royal L-2449, Luxembourg.
Learn more
Buy now. Pay with Klarna at your own pace.
Get what you need for your next project, choose how you pay.
Pay in 30 days
£45.29
Pay in full
Klarna's Pay in 30 days is an unregulated credit agreement. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. T&Cs and late fees apply.
Pay over time
£15.10
Every 30 days
Pay in 3
£15.10
today
£15.10
in 30 days
£15.10
in 60 days
Klarna's Pay in 3 is an unregulated credit agreement. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. T&Cs and late fees apply.
How it works
- At checkout select Klarna.
- Choose your payment plan.
- Different payment plans may be shown depending on the purchase amount and credit score.
- Complete your checkout.
- The amount will be charged based on the payment plan you chose.
Learn more
Pay in 4 interest-free payments
Split your purchase of £45.29 into 4 with no sign-up fees or late fees. Your purchase will be split into 4 payments, payable every 2 weeks
£11.32
today
£11.32
second payment
£11.32
third payment
£11.32
fourth payment
How it works
- Choose Clearpay at checkout to pay later with Pay in 4.
- Complete your purchase with the first payment today.
- Remaining payments are taken automatically.
Clearpay is unregulated credit. Use responsibly. 18+, T&Cs and late fees apply at clearpay.co.uk/en-GB
Clearpay lends you a fixed amount of credit so you can pay for your purchase over 4 instalments, due every 2 weeks. Ensure you can make repayments on time. You must be 18+ and a permanent UK resident (excl Channel Islands). Clearpay charges a £6 late fee for each late instalment and a further £6 if it’s still unpaid 7 days later. Late fees are capped at £6 for orders under £24 and the lower of £24 or 25% of the order value for orders over £24. Missed payments may affect your ability to use Clearpay in the future and your details may be passed onto a debt collection agency working on Clearpay’s behalf. Clearpay is credit that is not regulated by the Financial Conduct Authority. T&Cs and other eligibility criteria apply at clearpay.co.uk/terms
Product Overview
Acoustic glass mineral wool roll for stud partitions and separating floors. Suitable for timber and metal stud walls at 600mm centres. 25mm thickness used for basic sound control in internal walls.
Delivery & Returns Information
How Our Delivery Works
We work with a nationwide network of trusted suppliers. As a result, items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you'll see multiple delivery charges at checkout. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery Areas & Charges
Delivery charges listed on our website apply to mainland UK, excluding the following postcode areas: AB, CF, DD, DG, FK, KW, IV, LA, LD, LL, NP, PA, PH, SA, SY
If your delivery address falls within one of these postcode areas, we’ll be in touch before processing your order to confirm any additional delivery costs.
Please note: We do not currently offer delivery outside the UK mainland.
Standard (Nationwide) Delivery
| Insulation, Plasterboard and Drylining Products | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £350 | £35 ex. VAT |
| Over £350 ex. VAT | FREE |
| Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £100 | £15 ex. VAT |
| Between £100 - £300 ex. VAT | £10 ex. VAT |
| Over £300 ex. VAT | FREE |
| Screws & Fixings and Adhesives & Sealants | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £50 | £5 ex. VAT |
| Over £50 ex. VAT | FREE |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £50 ex. VAT |
| Over £400 ex. VAT | £35 ex. VAT |
| Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £50 ex. VAT |
| Over £300 ex. VAT | £35 ex. VAT |
Returns
We offer a 30 day returns policy on any faulty products.
Key Features
- {{home}} Use in separating walls and floors
- {{local_fire_department}} A1 non-combustible
- {{volume_off}} Excellent sound absorption characteristics
- {{density_medium}} Minimum density of 10kg/m3
- {{content_cut}} Ready-cut for use at 600mm centres
- {{public}} Low Global Warming Potential (GWP)
Technical Specification
| Material Type: | Glass Mineral |
|---|---|
| Thickness: | 25mm |
| Width: | 2400mm |
| Length: | 11100mm |
| Sales Unit: | Roll |
| Sales Unit Coverage: | 26.64m2 |
| Brand: | Knauf Insulation |
| Manufacturer's Reference: | 715838 |
| Fire Rating: | A1 Non-Combustible |
Technical Downloads
Product Overview
Glass mineral wool loft insulation roll using ECOSE® Technology and a high recycled content.
Sized for friction fitting between timber and metal studs at 600mm centres, it reduces airborne sound transmission in separating walls, intermediate floors, and internal partitions.
With a manufactured density in excess of 10 kg/m³, it delivers reliable acoustic absorption while also contributing to thermal resistance and fire safety.
Classified Euroclass A1 non-combustible, it can be used within wall and floor systems to support compliance with fire and acoustic standards.
At 25mm thick, it is best suited to shallow cavity constructions where space is limited and only modest acoustic improvement is required.
Features & Benefits
- Glass mineral wool composition: Absorbs airborne sound and reduces reverberation within cavities.
- ECOSE® Technology binder: Formaldehyde-free, plant-based binder for improved handling and indoor air quality.
- Manufactured from recycled glass: Reduces environmental impact and conserves raw materials.
- Flexible quilt form: Adapts to irregular surfaces and friction fits securely between studs.
- Roll format supply: Speeds up installation compared with rigid slabs.
- Density ≥10 kg/m³: Provides effective acoustic absorption.
- Euroclass A1 fire rating: Fully non-combustible for safe use in walls and floors.
- 25mm thickness: Suitable for shallow cavity constructions where modest acoustic control is required.
Applications
- Separating walls: Provides an absorbent layer to reduce airborne sound between dwellings.
- Internal partitions: Improves privacy and acoustic separation within buildings.
- Timber stud partitions: Reliable friction fit between 600mm centres.
- Metal stud walls and separating floors: Delivers effective acoustic absorption across multi-storey builds.
Installation Guidance
- Cut to length with a sharp knife: Ensures clean fitting and minimises waste.
- Insert without compression: Maintains declared thickness and performance.
- Store and install in dry conditions: Protects product integrity during handling and fitting.
Compliance & Performance
- BS EN 13162 certified: Meets European product standard for mineral wool rolls.
- Euroclass A1 fire rating: Classified non-combustible under EN 13501-1.
- BRE Green Guide rating A+: Independently recognised as environmentally preferable.
- Zero ODP and low GWP: Contains no ozone-depleting or greenhouse gas substances.
- DECLARE Red List Free label: Independently verified as free from restricted substances, including formaldehyde and phenol.
Related Articles
How To Cut Insulation Rolls
Insulation Rolls vs Insulation Slabs: Which Type is Better in a Partition Wall
