Management vs refurbishment and demolition surveys: what HSG 264 asks for
How HSG 264 distinguishes management and R&D surveys: scope, access, presumptions, representative sampling and the dutyholder's risk assessment.
Before I agree a survey scope, I want to know what will happen to the building. Continued occupation, replacing a few partitions and demolishing a block require different information. The survey title alone is not enough: the locations and proposed disturbance matter.
HSG 264, Asbestos: The survey guide, second edition, 2012, explains the distinction. It is HSE guidance on meeting legal duties, rather than legislation itself. Paragraphs 40–42 describe the two survey types and the need to record which applies and where.
Start with the work and its boundaries
A management survey supports the ongoing management of asbestos during normal occupation. Under paragraph 43, it locates suspect asbestos-containing materials (ACMs), as far as reasonably practicable, that could be disturbed during occupancy or foreseeable maintenance and installation work. It also assesses their condition.
A refurbishment and demolition (R&D) survey has a different purpose. Paragraph 51 calls for locating and describing, as far as reasonably practicable, all ACMs in the refurbishment area, or throughout the building where demolition is planned.
For a refurbishment, I would agree the affected rooms, structures and services with the client and mark the boundaries on plans. If the proposed work changes, review that scope. Where the works are not yet defined, establish the information needed to agree a suitable scope before proceeding.
Paragraph 50 also matters for maintenance. Where work disturbs building fabric beyond the intrusion covered by a management survey, a localised refurbishment survey will be needed.
Plan for the access each survey needs
A management survey is not just a visual walk-round. Paragraphs 44 and 49 describe minor intrusion and disturbance, including access above false ceilings, beneath floor coverings and inside risers and ducts, as far as reasonably practicable. The depth of inspection should reflect foreseeable maintenance. Access equipment, keys and assistance need arranging before the visit.
An R&D survey involves destructive inspection where necessary to reach concealed areas. Paragraph 53 gives examples such as opening floors and breaking through partitions. The approach must be planned around the structure, services and hazards; it does not justify unsafe entry or uncontrolled damage.
The survey area must be unoccupied during intrusive work. For a small refurbishment, this may be an effectively isolated part of a building. Before reoccupation, it must be shown to be fit for use through a thorough visual inspection and, where appropriate, reassurance air sampling. Paragraphs 53–54 explain these arrangements.
Record limitations without hiding their consequences
In a management survey, an area not accessed must normally be presumed to contain asbestos and managed on that basis. Record precisely what was not inspected and why. Paragraph 56 calls for planning difficult access and arranging a revisit where entry was unavailable on the day. A locked door should prompt an access arrangement, rather than become a routine exclusion.
For R&D, paragraph 57 says access should not be restricted unless the site is unsafe or access is physically impractical. It also explicitly addresses areas that could not be accessed: locate them clearly on plans and in the report so that further investigation and asbestos removal can be managed as the works progress.
The report must explain the limits of its coverage. The client and contractors need to understand the remaining investigation and controls before disturbing an uninspected area. Paragraph 58 requires notification to the dutyholder and arrangements for later access, with limitations kept to a minimum.
Distinguish identification from presumption
Paragraph 37 distinguishes two levels of presumption. Strong presumption can draw on an experienced surveyor’s visual identification, knowledge of products or a positive analysis of similar construction material. Default presumption applies where evidence is insufficient to conclude that a material is asbestos-free, including inaccessible areas unless there is strong contrary evidence.
Sampling and laboratory analysis provide another basis for identification. A presumption is not an analytical result, and the report should make its basis clear.
For material assessment, paragraph 126 assigns presumed and strongly presumed ACMs the crocidolite fibre-type score of 3 unless strong evidence supports another type. Paragraph 100 discusses evidence from product type, age, similar products and inspection. There is no asbestos-cement-only exception, and identifying a product as cement does not by itself prove it contains chrysotile alone.
Use representative sampling with care
Paragraph 59 permits a grouped approach to similar rooms in non-domestic premises. Every room should first be visually inspected. Rooms can then be grouped by relevant features, and representative sampling used. Where asbestos is identified, corresponding items in that group can be strongly presumed to contain it.
Paragraph 93 warns against assuming items are identical because they look alike, particularly when concluding that they are non-asbestos. Representative sampling therefore needs evidence that the sample adequately represents the material concerned.
In practice, I would check how far the sample represents the material being described. A negative tile in one room does not automatically settle the status of similar tiles elsewhere. Repairs, replacements and different finishes may require further samples. Paragraphs 101–108 explain sampling strategy, including the additional care needed with variable materials.
Keep management priorities in context
Management surveys include material assessment. The wider risk assessment also needs the dutyholder’s knowledge of occupancy, activities and maintenance. Under paragraphs 128–129, the surveyor can assist, but the dutyholder remains responsible for that risk assessment.
R&D surveys normally do not need a condition assessment where materials will soon be removed. If there is a significant delay, paragraph 124 gives more than three months as an example where material assessment and interim management are needed. Ongoing occupation cannot simply be ignored because a report is labelled R&D.
For major refurbishment or final demolition, CAR 2012 regulation 7(3) requires the plan of work to specify removal before other major works, so far as reasonably practicable, unless removal would create greater risk to employees than leaving the asbestos in place.
Recording the distinction in AsbestosGuard
AsbestosGuard records survey types and allows different types to apply to defined building, floor or room zones. It also provides a “No access” record with a reason and optional note. These records help explain what was surveyed. The surveyor still needs to agree an adequate scope and resolve the access needed for the planned work.