Map every roof level before naming the leak source
A rear extension, dormer, valley or lower commercial roof may collect water from a higher slate or tiled slope. Draw a basic plan showing the upper roof, lower roof, outlets and the room where the sign appears. Note whether staining begins during rain, after a delay or when an outlet is visibly overwhelmed from a safe viewpoint. This prevents the lowest membrane from being blamed simply because water becomes visible there.
An inspection should follow the path in stages: upper coverings and junctions, valley or gutter transfer, lower surface, upstands and final discharge. Each stage needs a finding. Where access prevents one level being seen, the report should say so. The survey route is useful when the building has several linked roofs or when previous patching has moved rather than resolved the visible symptom.
Separate a membrane defect from a drainage defect
Ponding, a blocked outlet, a split membrane and a failed perimeter detail are different problems even when they affect the same flat roof. Record where water remains, how long it is visible after rain and whether the outlet or overflow can be seen from inside or ground level. Do not walk onto the roof to clear debris or test a soft-looking surface.
The repair decision should account for the surface, deck movement, falls, upstands, outlets and the source of water arriving from above. A patch may be reasonable for an isolated sound-area defect, while repeated ponding or widespread movement points towards a broader investigation. The flat-roof route explains those choices without assuming that every lower roof needs replacement.
Describe slope and rear access, not just the street address
Parts of Dundee include steep streets and buildings whose rear ground level differs materially from the front. For the actual property, state whether there are steps, retaining walls, narrow side paths, shared courts, extensions or lower neighbouring roofs. A front elevation photograph may not show the height or obstructions at the work area, so include separate safe views where they are available.
Access planning should protect entrances, residents, customers and people using paths below. It should also identify whether equipment can reach the relevant elevation without crossing land that has not been agreed. Roof work remains high risk even when the defect appears minor. Leave height assessment to competent people and keep all initial evidence gathering to normal indoor, window and ground-level positions.
Check the exact Dundee conservation context
Dundee City Council lists multiple conservation areas with distinct character, including areas on the slopes around Dundee Law and in Broughty Ferry. Do not infer status from the age or style of a building. Check the address and ask the council whether the proposed roof work needs planning permission or listed building consent before changing visible materials or details.
For a traditional roof, record slate size and coursing, lead junctions, chimney details, rainwater goods and earlier repairs. The useful question is which elements can remain and how any renewal will meet them. A consent-aware schedule should describe methods and materials clearly enough for owners, planners and contractors to discuss the same proposal rather than a generic promise of sympathetic work.
Prepare a Dundee roof-level sketch and enquiry
Send the full address, building use, number of storeys and a rough sketch or labelled photographs showing upper and lower roof areas. Mark the room affected, drainage outlets, valleys, rooflights and the direction water appears to travel. Add dates, weather, safe photographs and any previous repair note, especially if a membrane patch or outlet clearance changed the pattern.
Mention front and rear ground levels, gates, shared paths and times when occupied entrances must remain clear. State whether you need active leak guidance, diagnosis across linked levels or a planned repair schedule. Those details allow the enquiry to be reviewed for an appropriate next step; they do not confirm the cause, attendance, response time, cost or suitability of a particular product.
