DATUM
Material Library4 skins

Four skins, four grounds.

Every Datum building wears a perforated screen grown from its site. The cells come from the seed, and each opening is sized by the ground beneath it. Here are all four, with the numbers behind them.

Panelscrops at true density
01

Weathering steel, 6 mm

North face · Kalsoy Cliff House

Weathering steel screen with rounded openings of different sizes, rust at the cut edges, sea mist behind.
4.16 × 5.20 m crop
Seed
1542041351
Site
Kalsoy, Faroe Islands62.2931° N 6.7368° W
Density
1.03 cells per m²260 cells over 252.72 m²
Openings
12% to 72% of each cell40% open overall
Source
Rolled in Sweden, cut and perforated in Tórshavn
02

Aluminium, painted white

South face · Halvorsen Station

White aluminium plate, mostly solid, with small rounded openings rimmed with frost, the ice shelf beyond.
3.68 × 4.60 m crop
Seed
582578538
Site
Brunt Ice Shelf, Antarctica75.5811° S 26.2167° W
Density
0.80 cells per m²220 cells over 276.00 m²
Openings
10% to 26% of each cell18% open overall
Source
Rolled in Wales, coated in a Dutch plant
03

Anodised aluminium, bronze

East face · Llano Observatory

Bronze aluminium screen with large rounded openings, a concrete wall and a snow-capped volcano beyond.
4.96 × 6.20 m crop
Seed
2512851334
Site
Chajnantor Plateau, Chile23.0229° S 67.7553° W
Density
0.86 cells per m²150 cells over 173.60 m²
Openings
12% to 82% of each cell58% open overall
Source
Extruded in Santiago, anodised at 25 microns in Valparaiso
04

Perforated aluminium, 4 mm, mill finish

West face · Refuge Arête

Mill-finish aluminium panel, tight openings at one edge and open at the other, fixed to granite above a glacier.
6.88 × 8.60 m crop
Seed
1165476482
Site
Mont Blanc massif, France45.8326° N 6.8652° E
Density
1.13 cells per m²120 cells over 106.64 m²
Openings
18% to 70% of each cell32% open overall
Source
Rolled in the Aosta valley, punched in Chamonix
At one scalewidths in metres

From a 60 m station to a 12 m refuge.

  1. Kalsoy Cliff House · 48.6 × 5.2 m
  2. Halvorsen Station · 60 × 4.6 m
  3. Llano Observatory · 28 × 6.2 m
  4. Refuge Arête · 12.4 × 8.6 m