Lock down asbestos fibres and stop condensation in a single application. A non-licensed, fully warrantied spray foam system for warehouses, farms and industrial units — installed UK-wide.

Ageing asbestos cement roofs and wall sheets are common across warehouses, farm buildings and older industrial units. As the sheeting weathers, the surface breaks down and weakens, raising the risk of loose fibres, leaks and dangerous working at height. Full removal means licensed work, controlled disposal, scaffolding and weeks of downtime — a heavy cost and disruption for a still-functional building.
Enverge closed-cell spray foam offers a controlled alternative. Applied directly over the asbestos cement, it self-bonds to the substrate as it cures and forms a continuous, rigid layer that locks down the surface and seals the fibres in place. Encapsulation is a non-licensed process, so it avoids the cost, disruption and disposal burden of stripping the roof out entirely.
The result is an asbestos cement structure that is sealed, strengthened and insulated in a single pass. Loose fibres are bonded behind a tough monolithic skin, condensation that degrades the sheeting is reduced, and the building stays watertight and usable — extending its service life without the upheaval of a full removal programme.
Encapsulates asbestos cement in place — avoids stripping out and replacing the entire roof or wall.
Sealing fibres behind a bonded layer is non-licensed work, simplifying programme and approvals versus licensed removal.
Skips controlled disposal, full scaffolds and weeks of downtime, keeping the building operational throughout.
Self-bonds to the sheeting and forms a continuous rigid skin that holds loose surface fibres in place.
Closed-cell foam blocks the warm-cold interface that drives condensation and accelerates asbestos sheet degradation.
Seals, strengthens and weatherproofs tired sheeting, adding years of useful life to the structure.
We use Enverge closed-cell spray foam to encapsulate and insulate in a single application — bonding tightly to cement-fibre and metal substrates.
Enverge closed-cell foam (Nexseal LE / Nexseal 2.0) is spray-applied directly onto the prepared asbestos cement and self-bonds as it cures into a rigid, closed-cell layer. Because it adheres monolithically without fasteners or boarding, it locks down surface fibres, adds structural stiffness to the sheet and forms a continuous insulating, vapour-resistant barrier in one pass.
Typical published values for Enverge Nexseal LE closed-cell foam. Full technical specification →
For duty holders managing asbestos cement roofs, encapsulation is often the pragmatic route: closed-cell foam sprayed to the underside locks fibres in place, seals the sheet and insulates the building in the same single application — typically at a fraction of removal-and-replacement cost, and without the disruption.
Every roof is condition-assessed first, and the work sits within the duty holder's wider management plan under the Control of Asbestos Regulations. The encapsulated roof stops leaking heat, stops condensation drip, and is documented for the asbestos register at handover.
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Tell us about your asbestos roofs & building.
Free survey of your asbestos roofs & condensation check.
The right system for your asbestos roofs.
Approved applicators, minimal disruption.
Handover pack & 25-year warranty.






Send us your building details and our technical team will specify the right system and a clear budget. No obligation.
No. Encapsulation seals the asbestos cement in place rather than removing it. The spray foam bonds over the existing sheeting and locks down the fibres, avoiding the cost, scaffolding and controlled disposal that full removal requires.
Encapsulation of asbestos cement is generally a non-licensed process, as it seals fibres behind a bonded layer rather than disturbing or stripping the material. We assess each site and work in line with current asbestos regulations before any application.
An encapsulated roof remains recorded on your asbestos register as managed in situ. Sealing the sheeting behind a bonded foam layer supports a management plan by reducing fibre release risk. Your surveyor confirms the approach for your specific building.
Yes. The closed-cell layer is watertight and self-bonds to the sheeting, sealing splits and porous areas. It also cuts the condensation that forms on cold asbestos sheets and accelerates their breakdown, keeping the interior dry.
Commercial and industrial structures with asbestos cement roofs or cladding — warehouses, factories, farm and agricultural buildings, and older industrial units. We work on commercial sites only; call 01208 832 602 to arrange a survey.
Yes — encapsulating asbestos cement in good condition is a recognised, non-licensed management route under the Control of Asbestos Regulations, subject to assessment.
Substantially, in most cases — and it insulates the building in the same pass, which removal alone never does.
Always — condition is checked by a competent assessor before any work is proposed, and the result is documented for your asbestos register.
Specialist commercial spray foam, installed UK-wide by the Duratite Group's spray foam specialists.
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