When we are asked to look at a building, the first thing we do is walk the perimeter slowly and look up. Before any document arrives, the facade has already told us how the building has been run, what the next capital cycle will cost, and whether the number in the proposal is realistic.
Staining patterns
Vertical streaks below a window mean the sill is throwing water at the wall — a detailing issue, usually cheap, always spreading. Broad darkened patches without an obvious source generally mean a concealed plumbing leak inside the wall, which is expensive and rarely singular. A horizontal band of discolouration at slab level is the beginning of a waterproofing failure at the junction, and it will be a structural conversation within three years.
Rust stains at balconies and railings
Small brown weeps around a railing base are corrosion at the embedment. Left alone, expanding corrosion cracks the surrounding concrete and the repair becomes structural rather than cosmetic. A building showing this on multiple floors is telling you that its next major spend is not paint, whatever the committee has budgeted.
Cracks, read by direction
- Fine, map-like cracking across a plaster field is shrinkage — cosmetic, manage it in the next painting cycle.
- Straight cracks following the line between column and infill masonry are movement joints doing what they were always going to do; they need a flexible sealant, not filler.
- Diagonal cracks at corners of openings, particularly if they appear on the same alignment on several floors, warrant an engineer rather than a contractor.
The retrofit archaeology
Look at the air-conditioning outdoor units, the cabling, and the grilles. Where they are consistent in position and colour, someone enforced a policy and kept enforcing it. Where they are scattered across the elevation at whatever height each occupant preferred, the building has had no functioning oversight for years — and that tells you what to expect in the electrical shafts, the terrace, and the accounts.
The paint itself
Chalking, where a hand comes away powdered, means the coating has done its life and is no longer protecting the substrate. Peeling in sheets means the previous coat went on over a damp or unprepared surface, which means the last painting contract was managed on price. Buildings repainted on price get repainted more often, and each cycle starts from a worse substrate.
Why we bother
Because a facade survey converts vague anxiety into a schedule. Once you know which of these you are looking at, the next five years stop being a series of emergencies and become a sequence of planned spends — which is the entire difference between a building that holds its value and one that consumes it.