
Encapsulated roof
Completed white coating on an asbestos cement roof at SAICA, Warrenpoint, County Down.
- Sheets left in place
- Northern Ireland project
Asbestos roof encapsulation for County Monaghan farm buildings, factories and warehouses — no strip-out, no disposal of the sheets. Asbestos cement roofs are common on agricultural and industrial buildings across County Monaghan. Encapsulation is a survey-led way to deal with weathered sheets: they are prepared, sealed with GacoFlex encapsulation coatings and made watertight, without removal.

Monaghan is a border county in the north-east, sitting on the M1 Economic Corridor between Dublin and Belfast, with Monaghan town less than 100 minutes’ drive from both cities. Census 2022 counted 65,288 people across the county, living in and around Monaghan town, Carrickmacross, Castleblayney and Clones. Farming shapes the landscape. Teagasc’s county soil fertility survey names dairy as Monaghan’s leading farm enterprise, with drystock also significant and tillage only a minor activity. That points to a particular building stock: milking parlours, dairies, cubicle houses and calf sheds, plus beef and sheep housing on drystock holdings.
Food is also the backbone of the county’s industry. The council’s Enterprising Monaghan report describes an economy built around food and manufacturing exporters, naming forklift maker Combilift, Monaghan Mushrooms, Lakeland Dairies and Silver Hill Duck, and it identifies Lough Egish Food Park as Ireland’s largest integrated food industry park. Between the farms and the processors there is a long chain of ancillary buildings, from feed and packaging stores to workshops and vehicle sheds. Where any of these date from the decades when corrugated asbestos cement was a standard roof sheet, the roof is likely to show its age through eroded surfaces, lichen and leaking laps.
A leaking roof over a dairy or a food store is a hygiene problem as well as a maintenance one. Encapsulation tackles the roof without the dust and disruption of removal: Gaco urethane coatings, U91 and U92 being the grades for asbestos cement, are applied over the existing sheets to seal them under a continuous waterproof film. An approved installer surveys the building, replaces broken sheets, and chooses a cleaning method that will not abrade the cement or send debris where it should not go. Work below can often continue, subject to the risk assessment, and application is timed for dry weather within Gaco’s limits. Duratite supplies the coating materials, and the approved installer carries out the work.
The Safety, Health and Welfare at Work (Exposure to Asbestos) Regulations 2006 (S.I. No. 386 of 2006, as amended) apply to any Monaghan job that could disturb asbestos cement, and the Health and Safety Authority enforces them. Sheets are fragile, so the method relies on staging and crawling boards. Monaghan County Council is the building control authority, and if the job changes the roof insulation, TGD L 2022 applies. For a nearby example on the island of Ireland, the reference project for asbestos cement roof encapsulation is SAICA Warrenpoint, Co. Down.
For a Monaghan enquiry, say whether the building is a farm, food or manufacturing premises, what sits directly under the roof, and any hygiene or audit requirements that apply to the space. That lets the approved installer plan protection and timing before visiting.
It depends on roof area, condition, access and the specification, so we do not publish prices. After the free survey you receive a written quotation in euro from the approved installer.
Removal needs specialist contractors, disposal and a replacement roof. Encapsulation leaves the sheets in place.
Livestock sheds, stores and production buildings cannot easily be emptied for a roof replacement.
Hairline cracks, failed laps and fixings let water in. The coating system bridges and seals them across the whole roof.
Older sheets lose their surface, grow moss and lichen and become porous. Encapsulation seals that weathered surface.
A Northern Ireland project, photographed on site. The SAICA Warrenpoint roofs combined closed-cell roofing foam with a GacoFlex U91 base coat; the build-up for each roof in County Monaghan is set at survey.

Completed white coating on an asbestos cement roof at SAICA, Warrenpoint, County Down.

SAICA, Warrenpoint, County Down: closed-cell roofing foam spray-applied from the walkway system over asbestos cement (Northern Ireland project).

GacoFlex U91 base coat applied over the cured foam at SAICA, Warrenpoint.
Work on asbestos-containing materials in the Republic of Ireland is governed by the Safety, Health and Welfare at Work (Exposure to Asbestos) Regulations 2006 (S.I. No. 386 of 2006, as amended by S.I. No. 589 of 2010 and S.I. No. 632 of 2025).
Since the 2025 amendment, notifiable asbestos work needs an HSA permit before it starts, supported by the notification, a plan of work and a risk assessment. The installer’s programme for your County Monaghan roof builds that lead time in.
Every project is survey-led and risk-assessed, and notified to the Health and Safety Authority (HSA) where required.
Because the sheets stay in place, they remain part of the building’s asbestos records after the work in County Monaghan.
Straight answers to the questions building owners and managers ask most often.
Yes. Duratite Ireland takes enquiries from County Monaghan and routes them to an approved installer of the GacoFlex asbestos roof system who covers County Monaghan. We do not have a branch office in County Monaghan; the survey and application are carried out by the approved installer.
If the survey finds the sheets structurally sound, yes. The roof is prepared, sealed with GacoFlex U91 and U92 encapsulation coatings and, where specified, finished with a GacoFlex silicone topcoat. The sheets stay in place, so there is no removal or disposal.
Often, yes, because the work is carried out on the roof with the sheets left in place. The installer’s risk assessment sets out any restrictions for your building.
It depends on roof area, condition, access and the specification, so we do not publish prices. After the free survey you receive a written quotation in euro from the approved installer.
In the Republic of Ireland, the Safety, Health and Welfare at Work (Exposure to Asbestos) Regulations 2006, as amended most recently by S.I. No. 632 of 2025. Notifiable asbestos work now needs an HSA permit before it starts, supported by the notification, a plan of work and a risk assessment.
No. Encapsulation seals the asbestos cement sheets and makes the roof watertight, but the sheets stay in place, so they remain part of the building’s asbestos records.
Allow for the survey, the specification and the HSA permit, which must be in place before notifiable asbestos work starts. The installer plans the programme around it.
In many cases it can, because the sheets are sealed in place from above rather than removed. The approved installer’s risk assessment sets out any areas that must be cleared or protected and the timing is agreed around milking. Food hygiene requirements for the room below are discussed at survey stage.
The work is carried out on the outside of the roof and the cleaning method is chosen so it does not abrade the cement. The installer’s method statement explains how debris and wash water are controlled, and whether anything beneath needs covering, before work begins.
The Health and Safety Authority enforces the Exposure to Asbestos Regulations 2006, as amended, which govern the work itself. Monaghan County Council is the building control authority if insulation is added or changed, in which case TGD L 2022 applies.
The GacoFlex asbestos roof system, how encapsulation works and every area we cover.
Spray foam insulation, surveyed and installed by approved installers.
Commercial roof waterproofing, surveyed and installed by approved installers.
County · Northern Ireland
County · Republic of Ireland
County · Northern Ireland
County · Republic of Ireland
County · Republic of Ireland
County · Northern Ireland
What the 2025 amendment means for roof owners, and the Northern Ireland rules.
Condition, management options and the rules that apply before any roof work starts.
Asbestos cement roofs encapsulated in place at an industrial plant in Warrenpoint, County Down.
Every county in Ireland and Northern Ireland.
Tell us about your building and we’ll recommend the right system — foam, waterproofing or both — surveyed, specified and quoted at no cost.