Recticel vs Kingspan - Which is better?

Recticel and Kingspan are two of the biggest insulation brands and share very similar product ranges. So, how do the products differ?

Generally speaking, Kingspan is seen as the more premium option compared to Recticel, offering superior thermal performance in cavity wall application due to its phenolic core.

However, not all of Kingspan’s insulation products are made using a phenolic core, and instead have the same as Recticel and many other insulation brands - PIR, which makes the choice between both brands less clear-cut.

In this guide, we’ll break down everything you need to know about Recticel and Kingspan, comparing both brands' products based on the application they have been made for, so you can make a decision that’s right for you.

Brief Overview

We understand not everyone has the time to read an in-depth blog, so we’ve put together a brief overview below comparing Recticel and Kingspan side by side.  

1. Multipurpose Insulation

What is the best multipurpose insulation?

Recticel and Kingspan both offer excellent multipurpose insulation options, notably sharing the same thermal conductivity and only really differing in available thickness and compressive strength.  

Therefore, if you’re looking for the most cost-effective option with excellent all-round performance, Recticel GP is hard to beat. However, if you want slightly higher compressive strength, Kingspan TP10/TW55/TF70 will be more suitable.

2. Cavity walls

Partial-fill Cavity Walls
 

What is the best for partial-fill cavity walls?

Both brands offer excellent insulation for partial-fill cavity walls; however, Kingspan, although slightly more expensive, provides greater thermal conductivity compared to Recticel due to its phenolic core. 

Therefore, Kingspan K108 is more suitable if you have a tight cavity space and need to achieve a very low U-value with minimal thickness. However, if you’re on a tight budget, Recticel Eurowall delivers good value for money while providing long-lasting performance. 

Full-fill Cavity Walls

What is the best for full-fill cavity walls?

There are a few key differences between the brands when it comes to insulating full-fill cavity walls. 

If you have a tight cavity space, need to achieve a low U-value, and want the reassurance of enhanced moisture resistance, Kingspan K106 will be the better option. 

However, if you’re working with a tighter budget, Recticel Eurowall+ will be more suitable, offering a cost-effective, durable solution that still delivers reliable thermal performance for full-fill cavity wall applications.

3. Flat roof boards

As mentioned before, Recticel and Kingspan both offer suitable products for waterproofing systems. 
 

Torch-on systems - Powerdeck U vs Kingspan TR24

Shop Recticel Powerdeck U

Which is better for torch-on systems?

There is little to separate the two brands for torch-on systems, as both deliver excellent thermal efficiency and durability. 

If you’re looking for the most cost-effective solution, Recticel will be the better choice. However, if cost is less of a concern, and you want an insulation optimised for torch-on membranes, Kingspan TR24 will be the better option. 

Mechanically-fixed systems - Eurodeck vs Kingspan TR26

What is better for mechanically fixed systems?

Both products offer identical facings, thermal conductivity, compressive strength, board size and available thickness; the only difference between the two is cost. Therefore, if you’re operating on a tight budget, Eurodeck will be the better option. 

It’s important to note however that insulation is sold in varying thickness, so the Kingspan option may work out cheaper for you depending on your required thickness and total sheets. 

Fully-adhered systems - Powerdeck F vs Kingspan TR27

Which is the better option for fully-adhered systems?

Similar to torch-on and mechanically-fixed systems, both brands are very similar in criteria, sharing the same material composition, thermal conductivity, facings and compressive strength. 

That said, they do slightly differ in available sizes, with Kingspan TR27 offering a larger insulation board at 1200mm x 1200mm which is generally more popular (with the 25mm board being an exception at 600mm x 1200mm),whereas the Recticel Powerdeck F is a 600mm x 1200mm as standard. If you are gluing the insulation boards, Recticel Powerdeck F is the more cost-effective solution. 

Which is cheaper?

When choosing between Recticel and Kingspan, price is often a big factor — but it shouldn’t be the only one. The system you pick will also influence your long-term running costs, not just the upfront spend. 

Upfront costs - Price per Square Meter

Recticel typically ranges from £15-£25/m²

Kingspan typically ranges between £25-£40/m²

Long-term costs

Both Recticel and Kingspan use high-performance PIR insulation, which will significantly help cut heating bills. In some cases, your energy costs will reduce by 50% saving you an average household around £300–£500 a year.

Whilst Recticel is cheaper up-front, when it comes to insulating cavity walls, Kingspan’s phenolic core makes it far more thermally efficient, making it more effective in situations where space is limited. 
 

Which is right for me?

The choice between Recticel and Kingspan will lie in your priorities and budget. 

If you’re on a budget, Recticel is an affordable solution offering great thermal performance. If you’re looking for superior performance, particularly in cavity walls, Kingspan will be the better option as its phenolic core makes it far more thermally efficient. 

If you need any help with your insulation project, please don’t hesitate to reach out to us today. UKFR is a family-run business, and with extensive knowledge of insulation and flat roofing, we’re here to help you find what you need for your project.

Speak to us today.