Nationwide Delivery
Wed 10 Jun
- 2days
- 5hrs
- 46mins
- 6secs
lock Secure checkout (powered by Stripe)
Learn more
Pay in 3 interest-free payments
Split your purchase of £53.26 into 3 with no sign-up fees or late fees.
£17.75
today
£17.75
1 month
£17.75
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
£53.26
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
£17.75
Every 30 days
Pay in 3
£17.75
today
£17.75
in 30 days
£17.75
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 £53.26 into 4 with no sign-up fees or late fees. Your purchase will be split into 4 payments, payable every 2 weeks
£13.32
today
£13.32
second payment
£13.32
third payment
£13.32
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
Key Features
- {{holiday_village}} Use in internal walls and pitched roofs
- {{compress}} Combines insulation & drylining
- {{thermostat}} 0.022 W/mK thermal conductivity
- {{verified_user}} BBA certified
Technical Specification
| URN: | 3002020 |
|---|---|
| Brand: | Celotex |
| Application: | Walls, Ceilings & Pitched Roofs |
| Indoor/Outdoor Usage: | Indoor |
| Material Type: | PIR |
| Thickness: | 52.5mm |
| Width: | 1200mm |
| Length: | 2400mm |
| Weight: | 30.12kg |
| Sales Unit: | Sheet |
| Sales Unit Coverage: | 2.88m2 |
| Fire Rating: | Euroclass B-s1, d0 |
| Thermal Conductivity: | 0.022W/mK |
| Density: | 30kg/m3 |
| Certification: | BBA Approved (17/5405) |
| Product Standard: | BS EN 13950 & BS EN 13165 |
| Facing: | 12.5mm Tapered Edge Plasterboard (Front) / Composite Foil (Back) |
| Edge: | Tapered Edge |
| Manufacturer's Reference: | PL4040 |
Technical Downloads
Product Overview
Insulated plasterboard, measuring 52.5mm in overall thickness for use on internal walls and ceilings.
Manufactured as part of the PL4000 range, it combines a rigid polyisocyanurate (PIR) insulation core with a 12.5mm tapered-edge plasterboard lining. This dual-purpose construction improves thermal performance while providing a surface that is ready for direct decoration.
The PIR layer is faced with foil to enhance insulation and act as a vapour control barrier, reducing heat loss and helping to manage moisture within the building fabric.
The bonded plasterboard eliminates the need for a separate lining, saving time on site and ensuring a neat internal finish.
At 52.5mm thick (40mm PIR plus 12.5mm plasterboard), the board provides an effective upgrade in insulation performance, making it suitable for projects that need stronger thermal efficiency while still keeping internal build-ups relatively slim.
Features & Benefits
- 2-in-1 board (insulation + plasterboard): Speeds up installation by combining thermal lining and finishing in a single sheet.
- PIR insulation core (0.022 W/m·K): Reduces heat loss while limiting required build-up depth.
- Tapered edge plasterboard: Allows for neat jointing, skim finishing, and a paint-ready surface.
- Inbuilt vapour control layer: Provides moisture resistance and helps limit condensation risk.
- Lightweight but rigid: Easy to cut, handle, and install with standard tools.
- Environmental credentials: Zero ODP, low GWP blowing agent, and BRE Green Guide Rating A+.
- BBA certified (16/5357): Approved for use in roofs and internal wall applications.
- Board size 2400 x 1200mm: Standard plasterboard dimensions minimise joints and speed coverage.
- Thickness 52.5mm (40mm + 12.5mm): Suitable for thermal upgrades with minimal impact on room size.
Applications
- Solid masonry walls: Upgrading thermal performance with a drylined finish.
- Roofs (pitched/flat): Used as the underneath layer of insulation between or under rafters and joists.
- Timber frame lining: Provides thermal lining and ready-to-finish surfaces in frame constructions.
- Internal wall and ceiling linings: Fast, efficient upgrade in both new-build and refurbishment projects.
Installation Guidance
- Fixing options: Suitable for dot-and-dab adhesive bonding or mechanical fixings.
- Joint treatment: Use joint tape and compound at tapered edges for a smooth finish.
- Cutting and handling: Score and snap plasterboard; use fine-toothed saw for PIR core; handle with care to avoid edge damage.
- Moisture precautions: Store flat, dry, and covered; protect from prolonged sunlight or damp before installation.
Compliance & Performance
- Thermal conductivity: 0.022 W/m·K (PIR insulation).
- Reaction to fire: Euroclass B-s1, d0 (BS EN 13501-1).
- Compressive strength: ≥120 kPa (BS EN 826).
- Environmental performance: Zero ODP, low GWP, BRE Green Guide Rating A+.
Delivery & Returns Information
Delivery charges vary by product category and order value. Items may ship from different suppliers and arrive separately, so delivery charges can be shown per part of your order at checkout.
Standard (Nationwide) Delivery
| Insulation, Plasterboard and Drylining Products | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £45 ex. VAT |
| Over £400 ex. VAT | FREE |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £90 ex. VAT |
| Over £400 ex. VAT | £55 ex. VAT |
How delivery works
We work with a nationwide network of trusted suppliers. Items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you will see delivery charges shown at checkout for each part of your order. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery areas
Delivery charges apply to mainland UK, excluding: AB, CA, CF, DD, DG, EH, EX, FK, KA, KW, KY, IV, LA, LD, LL, ML, NP, PA, PH, PL, SA, SY, TR, TQ and TD.
If your address is in one of these areas, we will contact you before processing your order to confirm any additional costs. We do not currently offer delivery outside the UK mainland.
What to expect on delivery day
- Deliveries are typically kerbside.
- Please ensure someone is on-site to accept delivery. For heavier items, help with offloading may be required.
- Many building materials arrive on large vehicles. If access is restricted, a specialist vehicle such as a HIAB may be required and could incur an additional charge.
Why delivery can cost more than typical parcel delivery
Building materials often travel on larger vehicles and usually carry fewer drops per run than parcel networks. That is why delivery charges can be higher than standard e-commerce shipping.
Returns
Returns depend on what you have bought and whether there is anything wrong with it. For full details on eligibility, timeframes, and exclusions, please see our full policy.
Customer Reviews
Used this product on the underside of a flat roof and was very pleased. the laminate insulation board went up so quickly that I saved a lot on labour.
quick install
Leave a Review
Related Articles
How To Cut Plasterboard: A Step-by-Step Guide
How To Fix Plasterboard
How To Install Celotex Insulation Boards
