How to choose insulated panels correctly - Inver Group

We know the advantages of the insulated panel construction system, but do we know how to choose the most appropriate insulated panel for our building project? In this post, you will find a series of questions you should ask yourself in order to choose the most suitable insulated panels for your building.  The usage of the building, the climate, the temperature conditions, proximity to the sea and extreme conditions are some of the aspects to think about.  Considering all these questions, you will be able to define materials, finishes, and thicknesses for the panels you use.

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Deciding which insulated panel characteristics to choose

Insulated panels are a material that over time has gained market visibility over other materials and, given this growth, it has stopped being a product difficult to find or a rejected innovation (like most innovations). Increasingly, builders are leaning more towards using the panels for their projects and these are no longer limited to those in the industrial sector, as you may think since panels are found in buildings as diverse as schools, churches, gyms, sports centers, transport terminals, and homes.

However, deciding which sandwich panel to use for each project is a task for which the technical team must take due action. The inexpensive option will not always be the best (e.g. polystyrene) and, even worse, it could be counterproductive, affecting everything from the building’s efficiency to putting the safety of its users at risk. Taking this into account, there are a number of aspects that must be taken into account. Here are the most important ones.

Aspects to consider

The use that will be given to the building.

Depending on the purpose of the property, panels for both ceiling and wall will vary. For example, office buildings tend to have a less “rough” use than product warehouses.

Technical considerations.

These are aspects that have a relation to the safety of the building. Thus, the following should be taken into account:

– The characteristics of the panel in relation to the resistance to snow loads on the roof for those locations with harsh winters.

– Wind resistance should always be taken into account, especially for buildings of considerable height and those in coastal locations or exposed to hurricanes and similar phenomena.

– Water tightness, something that has more to do with the joints of the panels and the quality (brand) of the products to acquire.

– Main and secondary structures of the building

The Climate and Weather

The climate is going to be a determining factor on the panels to install, for example, coastal locations usually have a very salty air, something that is essential to define what type of paint will be used for the panel. Also, wind, snow, rain, and humidity have to be analyzed in order to determine the best option.

Insulating considerations

The thermal factor is crucial and determined by the type of foam core material and its thickness. For example, you will not be able to use the same type of panel for a furniture store as for a cold warehouse for salmon. Thus, if high thermal insulation is desired, a PIR panel is one of the primary options, while mineral wool may not be as adequate.

Fire resistance is a very important issue. Depending on each country or region, there are minimum regulations to comply with. Under equal conditions and dimensions, rock wool panels perform better when it comes to fire in comparison to PIR or PUR.

Sound insulation. This will determine the thickness of the panel. In general, rock wool tends to have better sound insulation properties.

Aesthetics Considerations

Insulated metal panels give the facilities a modern, industrial, and maybe tough appearance to a certain extent, something that may not be desired for homes, although this will depend on the design capabilities of the architect. Still, there are alternatives such as corten steel and wood panels, which allow a cozier yet modern appearance.

As a conclusion

It is highly relevant to recall that the ecological aspects should not be forgotten, since insulating panels give the building important advantages in this regard, due to their low impact on the environment, reduced energy consumption, and recycling properties. Moreover, it has to be analyzed if a certification like LEED or another would be desired, not only because of the financial and image benefits these permit but also because the planet needs this more than ever!

These are the most significant matters to consider when designing a building with insulated panel covers, however, there are others that require evaluation according to the provider chosen, such as their experience with this type of materials, technical support, quality of products, and the ability to provide additional services like logistics and detailing. We cover these in other posts.

If you're planning to use sandwich panels for your building, cold room, or cleanroom project, you probably have a lot of questions. This FAQ guide answers the most common questions about panel types, certifications, installation, and more — helping you make the right choice with confidence.

1. What is a sandwich panel?

A sandwich panel is a construction material made of three layers: two outer metal sheets and an insulating core material such as PU, Rockwool, or EPS. It offers excellent thermal insulation, strength, and durability for walls, roofs, and cold rooms.

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Contact us to discuss your requirements of Sandwich Panels Supplier. Our experienced sales team can help you identify the options that best suit your needs.

2. What are the different types of sandwich panels available? Common types include:

• PU (Polyurethane) Panels – High insulation

• Rockwool Sandwich Panel – Fire-resistant and soundproof

• EPS Sandwich Panel / Expanded Polystyrene Panel – Lightweight and cost-effective

Each type suits different applications and project needs.

3. Which sandwich panel is best for cold rooms or freezers?

PU sandwich panels are ideal for cold rooms due to their superior thermal insulation. They help maintain low temperatures and reduce energy costs.

4. What thickness of sandwich panel should I choose?

Panel thickness ranges from 50mm to 200mm, depending on insulation needs.

5. What is the lifespan of sandwich panels?

Sandwich panels can last 20–30 years or more with proper installation and maintenance. Their anti-corrosion coating and weather resistance extend durability in outdoor use.

6. Can sandwich panels be customized? Yes. You can customize:

• Length & thickness

• Core material

7. Are sandwich panels suitable for both walls and roofs? Yes, sandwich panels can be used for:

• Wall systems: Internal partitions, external walls for Office, Warehouse, Factory, Cabin, Data Center, Coldroom, Cleanroom

• Roof systems: Lightweight roofing with insulation

Ensure the panel type and profile match the application.

8. What is the maximum length for a sandwich panel?

Panels can typically be manufactured up to 12 meters in length. Custom lengths are available based on transport and installation requirements.

9. Are BRD sandwich panels certified?

Yes. BRD panels come with local certifications such as BOMBA and SIRIM (Malaysia) upon request. Certificates vary based on panel type and project requirements.

10. Are BRD offers installation services and project consultation?

Yes. BRD provides full-service solutions — from consultation, site measurement, quotation, delivery, to professional installation — backed by over 20 years of experience.

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For more information, please visit PUF Panel.