Commissioning a roof repair? Prepare the contractor’s briefing

A useful enquiry does not need to prescribe the repair method. It should clearly distinguish symptoms observed by the owner from the diagnosis still to be made by a specialist.

Record where and under what circumstances the problem appears: a leak, noise or visible change. Take photographs only from positions accessible without exposure to a fall. Do not climb onto the covering to obtain a better quotation photograph. If the cause is unknown, describe the symptom rather than naming an arbitrary component for replacement.

Provide dates of previous repairs and any drawings held. Identify whether each item comes from records, observations from a safe position or someone else’s account. Do not present an assumption about roof condition as confirmed load-bearing capacity. Missing records matter when planning the investigation; they should not be filled in from guesswork.

Pass on known rooflights, openings, roof services and access restrictions. Do not assume a team will identify them from the street. Mark areas whose condition is unknown too. Determining whether a surface can be accessed and how people will be protected belongs to competent work planning before the job starts.

Ask bidders what investigation and access arrangements are included. One proposal may include them while another excludes them. Compare inspection, site preparation, repair and clearing up in separate fields. The table should reveal scope differences, not replace expert assessment of proposed protective measures.

When selecting a team, establish its experience with comparable work and how the job will be supervised. Ask how identified risks will affect the work plan. “We always do it this way” does not explain arrangements for your building. Do not reduce the safety discussion to whether workers have harnesses.

Record who provides site access, hands over keys and informs building users. Separate these owner tasks from technical work preparation. Appointing a contractor does not make all parties’ responsibilities disappear or automatically transfer them to one business. Allocate responsibilities according to the project arrangements and applicable requirements.

Before agreeing a date, explain when the building is occupied and which entrances cannot simply be closed. The contractor needs this for planning, and the owner for preparing users. If safe arrangements require part of the premises to be taken out of use, plan that beforehand. Do not leave the conflict for the team to resolve on arrival.

The programme should allow work to stop following assessment of weather and site conditions. Avoid an agreement demanding same-day completion at any cost. Ask the contractor how changes will be communicated and the building protected during a break. Responsible people determine technical criteria for the particular task and equipment.

If investigation reveals different damage, separate the revised proposal from the original order. Record the changed task, organisational implications and approving person. Additional work is not automatically covered by the same safety plan. Changed conditions may require reassessment before proceeding.

Before work begins, ask about the agreed emergency arrangements and the person directing the job. The owner should provide information needed to reach the premises, rather than invent a roof rescue technique. Rescue must form part of preparation; assuming someone will call for help does not resolve how a casualty can be reached safely.

After repair, retain the work record, contractor photographs and any restrictions on subsequent use. Note matters left for separate investigation. Provide this package at the next commission rather than only the date of the previous visit. Records preserve knowledge of the building but do not themselves authorise roof access.