The original note, as written at the time
Let the brise-soleil make it easier for you to anchor the cleaning cradle. Let the cleaning cradle be well concealed in the brise-soleil. Trust me, it helps.
Ongoing development
Let the brise-soleil make it easier for you to anchor the cleaning cradle. Let the cleaning cradle be well concealed in the brise-soleil. Trust me, it helps.
This sounds like a small detailing note and it is actually a position on what a facade is for.
Every building above a certain height has to be cleaned, and cleaning requires an anchor, a rope, a person in a harness and a place to stand. If the facade was designed without any of that, the anchors get drilled afterwards by somebody who does not care where the waterproofing is, and the result is a building with a permanent set of holes in its weather skin and a set of fixings nobody can certify.
But if the brise-soleil is designed first, and the shading device is already a horizontal element at a sensible spacing, then the cradle anchor has a home. The louvres conceal it, the structure carries it, and the fixing can be engineered once rather than improvised annually. The shading system that was doing one job now does two, and the building gains a maintenance route that nobody has to apologise for.
What I like about this is that it reverses the usual order of design. Normally the architecture is resolved and then the maintenance is accommodated, which means maintenance always arrives as a compromise — a bolted addition, a visible rail, a service gantry that ruins the elevation somebody fought for. Here the maintenance is part of the reason the elevation exists in the form it does, so the facade and its upkeep are the same drawing.
And it is honest about cost. A concealed cradle system is a real line item and a developer will resist it, because it buys nothing visible. What it actually buys is that the building can still be cleaned in fifteen years without scaffolding, that the weather skin is not punctured annually, and that the person at the end of the rope has a fixing that was designed rather than discovered.
We should be designing for the person who will be hanging off the building, and if that person is invisible to the drawing, the drawing is incomplete. The brise-soleil is the cheapest place in the whole facade to hide that obligation, and hiding it there is not a compromise. It is the detail doing its job properly.