Ideas Library · Exterior
Deciding Now Where the Elevation Will Streak
Every elevation soils unevenly; the only question is whether the pattern was chosen. Putting drips and throats where water would otherwise run back, and giving the run-off a band that can carry dirt without looking wrong, makes weathering part of the design rather than something done to it.
Spaces:front elevationmulti-storey facadegable endhouse facade
Style:practicaldetail-leddurable
Where this idea works
Where this idea works
Contexts this direction tends to suit — and, honestly, where it may not.
- Elevations where sills, copings and projections are still being detailed
- Facades in exposed or dirty positions where soiling will be plainly visible
- Pale or uniform surfaces on which staining shows most
- Walls being refaced, where the geometry of every projection is being reconsidered
Where it may not fit
Where it may not fit
- Existing elevations where projections cannot be altered and only cleaning is available
- Situations where an apparent stain is a symptom of water entering the wall — an assessment for a qualified professional
- Sheltered elevations receiving so little rain that lack of washing is the problem rather than streaking
Planning
Planning considerations
- Where water leaves a face is decided by the detail, so drips and throats are a design decision rather than an afterthought
- Anything hung on a facade redraws the run-off below it, so canopies and brackets belong in the same drawing
- Insulating or re-facing a wall changes its geometry and therefore its weathering pattern
- How a surface soils in a given position is a question worth putting to a qualified professional who knows the exposure
Layout
Layout considerations
- Water concentrates where a surface collects it and leaves where the detail lets it go, so the two decide the pattern together
- The band immediately below the sill line takes the heaviest run-off, which makes it the natural place for a material that can carry dirt
- The head of an elevation decides much of what happens below it
- Some parts of a wall never get washed at all, and those soil differently from the parts that do
Materials & finishes
Materials and finishes to discuss
Named generically as starting points to discuss with professionals — not specifications, and not priced.
Consider:stone copings and sillsdrip and throated profilesa darker or textured band materialprojecting course or stringsurface coatings chosen for soiling
- A projection without a drip returns water to the wall face beneath it
- Repeated wetting and drying along the same lines affects a finish differently from general exposure
- Materials that soil evenly age more gracefully than those that soil in streaks
Maintenance & durability
Maintenance and durability questions
- Choosing where dirt collects also decides where cleaning will be needed and how reachable it has to be
- Uniform pale surfaces show run-off patterns soonest
- A stain that reappears quickly after cleaning is worth investigating rather than repeating the clean
Professional review
What to ask a qualified professional
Bring these questions to a designer, contractor or the relevant qualified professional or authority.
- Which parts of this elevation would you expect run-off to concentrate on?
- How would you detail drips and throats under the sills and copings here?
- Would a different material below the sill line help carry the soiling this elevation will get?
- How does anything hung on this facade change the run-off beneath it?
- How would you tell staining apart from water actually entering the wall?
More ideas
Related ideas
Stone Facing Elevation →Facing an elevation or base in real stone for weight and permanence, and the structural support, backing and coursing questions a heavy material raises.Gable Feature →Explore how cladding, applied timber or a feature window can turn a plain gable into a facade highlight, plus the questions to confirm first.Mixed-Material Facade →Composing an elevation from two or three materials by zone to break up bulk, and the junction, weathering and restraint questions that keep it coherent.Weatherproof-Detail Questions →Explore the junction details — flashings, drips, seals — that keep an elevation weathertight, framed entirely as questions to confirm with professionals.Balcony & Juliet Direction →Explore how a Juliet or projecting balcony can add outlook and facade interest to an upper room, framed as a direction with questions to confirm.Brick and Render Mix →Pairing a brick base or band with render above so two systems share one elevation, and the junction, weathering and movement questions where they meet.Charred Timber Facade →Cladding an elevation in charred timber for deep tone and texture, and the char-depth, rub-off and re-oiling questions that set it apart from plain timber.What a Chip Reveals →Choosing colour that runs right through the body wherever an edge will be knocked, and accepting applied colour only where damage is genuinely unlikely.
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