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// commercial

private bank offices.

a regional bank branch on the dry pacific coast, redesigned so the façade carried the climate instead of the air-conditioning.

private bank offices
location
chitré, panamá
year
2022
area
376 m²
typology
commercial
status
competition entry
role
architecture + envelope simulation
-45%
// the proof

radiation on the façade.

incident solar flux on the west and south façades vs. unshaded baseline. competition entry.

// the project

brief, approach, outcome.

// brief

chitré is hot, dry, and bright, closer to a sahel climate than a wet panamanian one. the client's brief was a calm, daylit branch open to walk-in clients, which the earlier scheme had answered with a fully glazed perimeter and a 12-tonne chiller.

the work was to cut the cooling demand back to something a quieter system could hold, without losing the daylight or the openness that made the brief make sense.

// approach

we modelled the radiation map on the existing scheme first, in three timeslots across the year. west and south were the loudest surfaces. the section was redrawn around a perforated breezeblock screen that admitted ventilated daylight while breaking the direct flux by a measurable factor of two.

the screen is local, cast on site, and reads as carved stone from outside, but the reason it exists is in the simulation, not the mood board.

// design moves

the decisions that shaped it.

01
shading screen
perforated concrete breezeblock skin around the west and south façades; sized for chitré's april–august sun path.
02
glazing
low-e tinted units behind the screen; vision glass kept narrow on east and north.
03
roof
ventilated rainscreen and 10 cm insulation over the slab; reflective topcoat.
04
ventilation
cross-purge from the rear courtyard at night; mechanical sized to the smaller daytime load.
the façade does most of the cooling, quietly.