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Commercial spray foam experts · Duratite Group

Modular & Portable Building Spray Foam Insulation

Insulation for suitable modular units, portable buildings and off-site structures, planned around their frame, services, transport and internal finish.

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A specification built around your application

Modular buildings combine compact dimensions with a defined manufacturing or refurbishment sequence. The frame, panel construction and junctions need to be understood before adding insulation. Factory access can be very different from access to an occupied unit on site.

Define whether the project is a new module, a conversion or an upgrade to an existing cabin. Explain whether it will be moved after installation and how internal linings, services and connections between modules are arranged. These details belong in the specification.

What shapes the insulation specification

Frame and panel build-up

Provide drawings of walls, roof and floor, including existing insulation and membranes. The full construction informs thermal, moisture and fire assessment.

Fit-out and usable space

Allow for insulation depth, service zones and linings. Coordinate windows, doors, sockets and mechanical services before the structure is closed up.

Production and installation

Set out whether work takes place in a factory or on site, how units are accessed and any transport or assembly stages that follow the insulation.

From the Duratite project library

Container conversions: one modular application

These photographs show insulation and framing details in container conversions.

A ceiling coating on the corrugated steel inside a storage container.
Storage ceilingA ceiling coating on the corrugated steel inside a storage container.
Insulation between timber studs in a container conversion.
Conversion liningInsulation between timber studs in a container conversion.
A closer view of foam fitted around the conversion’s timber battens.
Batten detailA closer view of foam fitted around the conversion’s timber battens.

See the source project and photographs on Duratite → · Select a photo for the full view.

From project brief to installation

  1. Share the brief

    Send photographs, dimensions, site location and the intended use. Include known defects and the outcome you need, such as reducing heat loss or addressing cold-surface condensation.

  2. Assess the construction

    The survey establishes the accessible substrate, preparation, moisture conditions and practical installation scope. Drawings and existing records help resolve interfaces with other parts of the building or vessel.

  3. Agree the scope and price

    Compare the complete work package: preparation, insulation, protective finish, access and reinstatement. Agree responsibilities and the programme before the work begins.

  4. Record the completed work

    Arrange inspection before the insulation is concealed. Keep the agreed specification, product details and installation records with the asset’s maintenance information.

Understand commercial spray foam costs · Compare insulation approaches

Modular & Portable Building Insulation questions

Can you upgrade an occupied portable cabin?

Only after assessing access, existing finishes and the construction. Some areas may need to be opened and the work planned around temporary relocation or exclusion.

Is a container conversion the same construction?

Not necessarily. A steel shipping container and a framed modular unit need different detailing. Use the container service where that is the actual shell.

What affects the cost of modular & portable building insulation?

The treated area, substrate condition, specified thickness, preparation, access equipment and finish all influence the price. Include the work programme and any removal or reinstatement in the enquiry so quotations cover the same scope.

What should be agreed before installation?

Confirm the product and application, prepared substrate, intended thickness, junction details, protective finish and access arrangements. Ask for the relevant product information, installation records and the specific terms of any proposed warranty.

Free survey

Get a quote for your project

Send us your building details and our technical team will specify the right system and a clear budget. No obligation.

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