Manage + monitor
Keep suitable material under the building’s asbestos management plan where immediate remedial work is not required.
Asbestos-cement roof encapsulation
Asbestos-cement roof encapsulation.For suitable existing roofs.
Repair, sealing and encapsulation for suitable asbestos-cement roofs, with controlled preparation and seamless SprayGrade waterproofing where inspection shows it is suitable.
Start with the register
Send the asbestos information, roof area and current defects.
Request assessment 01254 433987The critical distinction
Encapsulation is not “paint over asbestos.” It is a managed work route that begins with material condition and task classification, then builds controlled preparation, repair and waterproofing around them.
Decision before product
The survey keeps every legitimate route open.
The correct answer can be continued management, repair, encapsulation or removal. Roof type alone does not decide it.
Localised repair
Treat specific defects under an appropriate asbestos work method when the material condition and task classification allow.
Seal + encapsulate
Prepare, repair and enclose suitable asbestos cement with a compatible protective waterproofing system.
Partial or full removal
Use removal where condition, redevelopment, access or project constraints make retention inappropriate.
Suitability gates
Eight checks before encapsulation.
Confirm material identity and review available survey information
Assess sheet condition, weathering, cracks and fragile areas
Map leaks at laps, fixings, ridges, rooflights and flashings
Classify the planned work before disturbing the material
Select controlled cleaning and preparation methods
Repair suitable defects and stabilise critical interfaces
Confirm system compatibility, build-up and detailing
Record the completed work in the management information
System route
SprayGrade for suitable large asbestos roofs
Two-component, cold-applied liquid rubber can form a seamless fully adhered membrane over a prepared substrate. Suitability, preparation, repairs, detailing and work controls remain project-specific.
Work classification cannot be guessed from the roof type.
Asbestos cement is highly bonded, but material condition and the way the work is performed affect the classification and controls. HSE guidance must inform the risk assessment and method.
Asbestos-cement roofing
Related asbestos roof resources
Technical guidance across the full asbestos-cement roof management lifecycle — diagnosis, repair, encapsulation, refurbishment, waterproofing and replacement decisions.
Asbestos roof assessment