Dimensions 2400 × 1200 mm
Brand

Celotex

Thickness

37.5mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

1

Sales Unit

Board

Unit Coverage

2.88m2

Manufacturers Reference

PL4025

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass B

Edge Type

Tapered

Facing

Paper Facing

Weight (kg/m2)

9.99kg/m2

Product Range

Celotex Insulated Plasterboard (PL4000)

Useful Information
This product is a 2 in 1 board. 25mm Celotex Insulation + 12.5mm Plasterboard

Celotex 37.5mm Insulated Plasterboard (2400mm x 1200mm x 37.5mm) – PL4025

(35 customer reviews)
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Original price was: £40.50.Current price is: £35.20. ex VAT

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Thickness
Useful Information
This product is a 2 in 1 board. 25mm Celotex Insulation + 12.5mm Plasterboard
Stu Cazaly
Stu Cazaly
2024-07-11
Trustindex verifies that the original source of the review is Google.
Excellect service via ordering and email. Quick delivery and great communication with delivery driver. Highly recommended.
Kendo Nagasaki
Kendo Nagasaki
2024-07-09
Trustindex verifies that the original source of the review is Google.
Delivery was correct, well packaged and on time. Driver was very helpful. Overall a great experience. Highly recommend these guys 👍
James Moore
James Moore
2024-07-08
Trustindex verifies that the original source of the review is Google.
Initial impressions : i was dubious of ordering after seeing some of the negative reviews, but equally amused by trade insulation replies....... i was looking at reviews because i'd never heard of the business, but after reading the reviews it became clear that actually the place was not a scam, the goods were arriving however people had not paid attention to tickboxes at checkout or were expecting craned deliveries (again not reading checkout\terms) and leaving their mrs at home to accept the orders i ordered 50mm celotex, and rwa45 insulation it's all arrived on the day they said it would yes i needed to help unload it, but guess what, i ordered it to use it so i fully intended to be handling it anyway and not only that even if i didn't need to help i would have had to move it anyway as they would have just done a kerbside delivery driver was great, he asked if i was comfortable in lifting the pallet of pir off in one go, (if you're not you're an adult, simply say no and open the pack) basically it came from travis perkins and i imagine it will come via other major suppliers too much like most of the online companies..... but because these guys order such large quantities they can pass on the discount and they're responsible for dealing with the the like of the tp if there's an issue summary : Yes i would recommend and yes i will order again
David Marsden
David Marsden
2024-07-07
Trustindex verifies that the original source of the review is Google.
My materials were delivered within the specified delivery window. The delivery guy was very skilled at navigating our driveway and he dropped the materials right at our front door. I’m delighted with the quality of materials and service and I will reorder from Trade Insulations Ltd at the next stage of my renovation.
Piotr Sedecki
Piotr Sedecki
2024-07-04
Trustindex verifies that the original source of the review is Google.
Great service. Arrived on time. Very helpful delivery gentelman. Highly recommend.
ian kiddle
ian kiddle
2024-07-04
Trustindex verifies that the original source of the review is Google.
Good product delivered quickly at a competitive price
*M *
*M *
2024-07-04
Trustindex verifies that the original source of the review is Google.
Recommended supplier! I found Trade Insulations easy to deal with, contactable, transparent on pricing and delivery schedules. Saved to my Favourites!

37.5mm Celotex Insulated Plasterboard (PL4025) is a 2 in 1 insulated plasterboard. The board consists of a high-performance PIR board. It also consists of a bonded tapered edge plasterboard. The board itself boasts great thermal properties. It is also easy to install in a variety of applications. Celotex 37.5mm plasterboards are commonly used in solid masonry walls or between and under rafters and joists.

Celotex Insulated Plasterboards are popular as they cut down installation time and also are in line with current building regulation standards. In addition to this, these boards are eco-friendly by helping homeowners reduce the amount of CO2 that they produce. This is achieved by helping to keep spaces warm for longer therefore the need for heating is reduced. On top of that, Celotex Insulated Plasterboards are manufactured with a blowing agent that has zero ODP (Ozone Depletion Potential) and low GWP (Global Warming Potential). Celotex demonstrates that they are environmentally conscious by putting eco-friendly practices in place during the manufacturing process. Celotex Insulated Plasterboards achieve a BRE Green Guide Rating of A+.

37.5mm Celotex Insulated Plasterboard

37.5mm refers to the overall thickness of the board. This thermal laminate board consists of the 12.5mm bonded plasterboard and the 25mm PIR core, which totals 37.5mm. Celotex PL4025 is BBA certified and is quick to install. This product combines both insulation and drylining. 37.5mm Insulated Plasterboard are suitable for internal wall and pitched roof applications.

Celotex 37.5mm insulated plasterboard achieves a thermal conductivity of 0.022 W/mK. It can be used in both existing and non-domestic buildings. This insulated plasterboard can also help to limit the risk of surface condensation. The total coverage of this board is 2.88m2 (with a length of 2.4m and a width of 1.2m). You can calculate the width by height to give you the total coverage of any board.

The Celotex PL4025 thermal laminate board can be fixed using standard masonry fixings and also drywall adhesive which is also known as Dot and Dab.

Celotex PL4025 key features

  • Celotex PL4025 gives you the ability to install both plasterboard and insulation in one operation, therefore, reducing installation times.
  • Celotex Insulated Plasterboards are suitable for a mechanical fix installation
  • They are also suitable for direct bonding installations (dot and dab)
  • The tapered edge of the plasterboard allows the installer to have a lot more flexibility. This further reduces installation times
  • It boasts long term energy savings for buildings, which is great for the environment.
  • Suitable for both new build and refurbishment projects
  • PL4025 if often used to upgrade projects to current building regulation standards.

Celotex PL4025

37.5mm Celotex Insulated Plasterboard can also be identified by its product code, which is PL4025.  The ’25’ in the code refers to the thickness of the rigid PIR foam core. Every Celotex Insulated Plasterboard product has a 12.5mm plasterboard attached to one side.

Our customers sometimes refer to PL4025 as “38mm insulated plasterboard”. This is simply down to the fact that people round up the thickness by 0.5mm as it is quicker to say 38mm than it is to say 37.5mm. This is technically incorrect as the actual product thickness of PL4025 is 37.5mm.

PIR Core Thickness – 25mm
Bonded Plasterboard Thickness – 12.5mm
PL4025 Total Thickness – 37.5mm

37.5mm Celotex PL4025 can help you streamline your project by combining PIR and plasterboard. PIR is a number one choice for people who want to improve the retention of heat inside a building. The Celotex PL4000 range is easy to install, boasts excellent thermal performance and reduces installation times. Get the best price on 37.5mm Insulated Plasterboard when you shop with us. We stock and sell this product per sheet. Express delivery is also available. The Celotex PL4000 range is available in a variety of thicknesses.

Celotex 37.5mm Insulated Plasterboard Applications

  • Flat Roofs
  • Pitched Roofs
  • Wall Applications
  • The underneath layer between and under rafter and joist applications
  • Timber frame lining applications

For more information on this product, you can download all relevant certifications and datasheets from our website. You can also find further product specifications in the table below.


Dimensions 2400 × 1200 mm
Brand

Celotex

Thickness

37.5mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

1

Sales Unit

Board

Unit Coverage

2.88m2

Manufacturers Reference

PL4025

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass B

Edge Type

Tapered

Facing

Paper Facing

Weight (kg/m2)

9.99kg/m2

Product Range

Celotex Insulated Plasterboard (PL4000)

Dimensions 2400 × 1200 mm
Brand

Celotex

Thickness

37.5mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

1

Sales Unit

Board

Unit Coverage

2.88m2

Manufacturers Reference

PL4025

Thermal Conductivity

0.022W/mK

Density

31kg/m3

Fire Rating

Euroclass B

Edge Type

Tapered

Facing

Paper Facing

Weight (kg/m2)

9.99kg/m2

Product Range

Celotex Insulated Plasterboard (PL4000)

35 reviews for Celotex 37.5mm Insulated Plasterboard (2400mm x 1200mm x 37.5mm) – PL4025

  1. Dmitry

    delivery driver was friendly

  2. Gary

    Easy and simple installation process

  3. Sophia

    saved my team loads of time when installing

  4. Alexander

    delivery driver was great, really helped me out

  5. Boris

    how have I only just found this product- saving me loads of time

  6. Raymond

    amazing

  7. Andrew

    5 star products and service!

  8. Brandon

    used for my pitched roofs really improved the retention of heat within my home

  9. Stephen

    reduced installation time

  10. Oskar

    Very impressed with the durability and effectiveness of this insulation.

  11. Vincent

    Prefer separate products for this thickness

  12. Tyler

    I take my hat off to these guys, ordered 70 sheets and received them in 2 days

  13. Levi

    I was told to get some 25mm Celotex and Plasterboards for my upstairs bedroom, i purchased 37.5mm Insulated Plasterboard my builder said i saved us two days work

  14. Russell

    This was a last minute addition to my order but they made it happen. Customer service brilliant as usual.,

  15. jennifer miller

    3 day turnaround – brilliant.

  16. Harvey James

    Best price on 37.5mm!

  17. Polly J

    Perfect perfect perfect! Was stressing that it would be late but you kept your word. Absolute gentlemen

  18. Robert Less

    my builders required 25mm Celotex for my mobile home project, I purchased the 37.5mm Celotex Insulated Plasterboard, builders advised saved them a days work so saved me money – very happy

  19. NIgel Grant

    I needed 30 sheets but ordered 31 sheets just because 1 might damaged, all boards was fine so now got 1 left over haha. maybe will use this insulated plasterboard in my dogs kennel to keep him warm.

  20. Lloyd

    Good service overall….website was easy and product turned up in perfect condition…. and on the day we asked.

  21. Ricky

    The best of both worlds. Plasterboard and PIR in one board. Happy days

  22. George

    So much easier buying the 2in1 option rather than buying insulation and plasterboard separately. Thanks again to the guy on the phone (forgot his name) for helping me out!

  23. Ian A

    Was advised to get Celotex rather than normal PIR and plasterboards. Not installed yet but very happy with the quick delivery and phone call

  24. aaron

    Thanks for delivey

  25. Jamie Valentine

    Purchased 40 boards the bottom had a few marks from Fork Lift but overall very happy with these insulated plasterboards

  26. Lisa Martin

    Thanks to Karl in sales for the quick delivery date

  27. gary robinson

    top service from the guys, delivered in 2 days

  28. Gavin

    Ordered 32 sheets last week, only took a few days to get here, driver was really helpful on his forklift

  29. David jordan

    Cheapest I could find online. Turned up up without any chips of scuffs, couldn’t be happier if I’m honest

  30. Max Ranning

    Order placed received in 2 days, very happy with service will order some more Celotex boards shortly.

  31. Dean West

    arrived packaged well, no scuffs. really happy

  32. Lewis Daniel

    Thank you!

  33. John F

    happy with product. delivered in 2 days

  34. Rebecca Lewis

    Really happy with my order! Will be using again.

  35. George Lesta

    First time using Insulated Plasterboards, highly recommend, great product – will use again

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Please login to post questions

Question:

Can I plaster over Celotex Insulated plasterboards as I would a standard plasterboard?

insulationadmin
23-Mar-2023

Answer:

Yes, when plastering a Celotex insulated plasterboard its just the same as plastering any other plasterboard. Exact same methods.

Question:

How do I fix a 37.5mm Celotex insulated plasterboard to a wall?

insulationadmin
23-Mar-2023

Answer:

The most common way to fix a plasterboard to a wall is to use the dot and dab method. Some people use the dot and dab method and choose to use a mechanical fixing too. Check out our dot and dab blog on our blog page!

Celotex is a leading manufacturer of insulation products. Celotex is a part of the Saint-Gobain Insulation UK group and has been innovating the insulation market since 1925. Celotex provides a large range of insulation solutions from plasterboard to PIR insulation boards.They provide a variety of solutions for different market sectors and also applications.Saint-Gobain believes in creating great living places and improving daily life. They have good technical support and are a trusted name in the business.At Trade Insulations, we offer the best prices on Celotex board.

Celotex PL4000 Datasheet
Celotex PL4000 BBA Certificate
Celotex PL4000 Declaration Of Performance

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