Spray Foam For Warehouse Insulation

Many warehouse insulation projects are difficult to get off the ground due to considerations for disrupting business operations and how to fit pre-manufactured insulation materials to often corrugated surfaces. Enverge Nexseal LE Closed Cell Spray Foam Insulation offers a fast and effective alternative to pre-manufactured warehouse insulation materials. It avoids the costly impact of roof replacement, over-cladding, or business disruption during installation. Spray-applied to the interior lining or the roof or walls, Enverge Nexseal LE follows the corrugated profile to provide a seamless, monolithic layer of thermal insulation.

Enverge Spray Foam Warehouse Insulation Benefits

Warehouse Insulation

The reliable adhesion and dimensional stability of Enverge Nexseal LE help make it one of the most popular choices for warehouse insulation, agricultural barn insulation, and industrial unit insulation. It has been used extensively in the UK for several decades and provides durability that is hard to achieve when fitting pre-manufactured insulation materials. Unlike pre-manufactured materials, the success of the insulation project is not affected by gravitational pull or the quality of the fixings; therefore, with Enverge Nexseal LE spray-applied to bond directly to metal, cement-fibre or asbestos substrates, it will often last for the life of the building and will require no ongoing topping up or maintenance. Up to 1000m2 can be installed in a matter of days when Nexseal LE Closed Cell is used, which helps mitigate downtime and disruption to business operations. The high-density nature of closed-cell spray foam insulation helps it achieve thermal compliance and eliminate surface condensation. When installed by a ThermoFoam professional installer, the finished appearance can look neat, tidy and uniform. Depending on insurance regulations, Enverge Nexseal LE achieves compliance as a British Class 1 fire-rated system, or when combined with a DC315 intumescent coating, a Euroclass B-s1-d0 rating can also be achieved.

Fast Install





Strong Adhesion

Nexseal Warehouse Insulation

Sucraseal Warehouse Insulation

Warehouse Insulation Solutions

Whilst the Enverge range of spray foams come in different densities, we recommend Nexseal LE Closed Cell when spray-applied directly to single-skin metal, cement-fibre or asbestos roof sheets thanks to its strong adhesion, durability, and structural stability. In some scenarios, particularly where pre-insulated sandwich panels are already in situ, Enverge Sucraseal Open Cell can be used as a cheaper alternative. Additionally, a popular choice is a hybrid system of Nexseal LE as the primary substrate layer, usually applied at a thickness of 25mm, combined with a further coating of Sucraseal Open Cell at the desired thickness to meet the required thermal performance. Our solutions excel when applied directly to corrugated metal, cement-fibre, and asbestos sheets. They can significantly extend their life, add structural stability, and offer robust thermal performance.


Check our Enverge BBA-Certified Spray Foams for Warehouse Insulation

The Enverge range of spray foams include leading brands, Sucraseal Open Cell and Nexseal Closed Cell. Utilising recycled materials, manufactured sustainably with the environment in mind and containing HFO, water-based blowing agents, Enverge products offer thermal, airtightness and durability.

This low exothermic, high-lift closed cell foam boasts a fast installation time, offers incredible thermal performance and improves the structural integrity of a building. Loved by installers for its fast rise, Nexseal is ozone-friendly and holds BBA Certification.

One of the leading open cell foam systems now available in the UK. Sucraseal combines peace of mind British Class 1 fire safety with exceptional thermal performance and is fully certified by the BBA. Sucraseal is installed exclusively by ThermoFoam-approved contractors only.

Warehouse Insulation Customers

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How We Help With Warehouse Insulation


Get in touch today to get the ball rolling


Let us specify the requirements for your project​


We’ll provide you with a budget price range


Use one of our ThermoFoam-approved installers


Once installed, we provide a 25-Year Product Warranty

Contact Us For Warehouse Insulation


How Does Enverge Nexseal LE compare to Pre-Manufactured Materials?

Whenever pre-manufactured materials are used to insulate corrugated or flat panel roofs, they require fixing into place using specific adhesives or hangars. This can be problematic for the existing structure as it may require additional fasteners to maintain the insulation. With spray foam insulation, it is spray-applied, reaching the surface as a light foam before expanding and curing to the final depth. This ensures that the spray foam fully bonds to the substrate and requires no additional fixings to hold it into place. This can offer significant timeline benefits and ensures that the existing substrate does not have to be loaded with heavy fixings or hangars.

What’s The Difference Between Nexseal LE And Sucraseal?

Both are used widely in the UK; however, Enverge Nexseal LE is a high-density closed cell that offers better performance against condensation, more robust adhesion to the substrate and advanced thermal performance per inch of material. Enverge Sucraseal has low density, and whilst it will bond sufficiently to the substrate, it offers little structural stability and no protection against future roof leaks. Should the roof have cracks or imperfections, moisture could penetrate the Sucraseal open cell and become saturated, so it is generally not recommended for single-skin roofs or wall panels.

What Access Equipment Is Required To Install Enverge Spray Foam?

Access equipment such as scissor lifts, scaffold towers, or MEWPS may be required to access roofs and walls. This would be no different when installing pre-manufactured insulation materials, as close access to the roof and walls will be required. It is worth considering the space available on the floor because any plant, equipment or stock may need to be moved to ensure clear access for platforms and scaffold towers. The safety of operatives, the workforce, and the public is always the priority, so proper access equipment is always required.

Why Can’t I Overclad The Roof With Insulated Panels?

Overcladding the roof is always an alternative option, particularly within busy buildings; however, it is not always cost-effective. Additionally, the over-clad method requires different considerations, such as safe access to the external roof, perimeter scaffolding, fall arrest, and weather challenges. When this method is considered, what may appear beneficial to the ongoing operations of the internal workspace can cost substantially more for the building owner.

Can Enverge Spray Foam Be Installed Externally?

Yes, the Nexseal LE Closed Cell has been used to insulate corrugated roofs from above; however, access requirements and the working environment can change significantly, such as the over-cladding option. A benefit of the Nexseal LE being installed externally is adding additional protection to the external roof skin, acting as a barrier against the environmental systems at the source. However, Closed Cell spray foam insulation always requires a UV-stable, weatherproof coating to protect it. Therefore, it rarely trumps the over-cladding system when installed externally.

Does It Come With A Warranty?

Yes. All Enverge Spray Foam Installations attract a 25-Year Product Warranty and at least a 5-Year Workmanship Warranty. Spray foam insulation is one of the most durable insulation materials available in the UK, and it won’t shrink or degrade like some other pre-manufactured insulation materials. It requires no ongoing operational or maintenance input and will remain in place as a passive insulation solution that becomes a part of the building envelope.