Micro perforated sheets and slats

Today I want to draw your attention on micro perforated sheets and slats. It is a solution that tries to combine solar protection and outward views. It might not seem a good solution, since while more perforation improves the view of the exterior; it also reduces the solar protection. However, the brain can reconstruct the image with little information, if it is widely distributed. For this reason, sheets with about ten percent of drillings give sufficient visibility to the outside, almost completely preventing the entrance of direct sunrays.

When the perforations are very small, about a couple of millimetres, the thickness of the sheet starts to matter. It is because this thickness blocks the sunrays for certain angles of incidence. Solar protection can be really efficient, as in these examples.

4444 Sucre Buenos Aires Esteban-Tannenbaum Architects microperforated

Micro-perforated folding-sliding panels in Buenos Aires [567]

MPavilion, in Queen Victoria Gardens St Kilda Road Melbourne Australia Sean godsell microperforated

A pavilion with monitored filters [557]

Parc Cientific Barcelona Barcelona Spain microperforated

Transparency and opacity of microperforated sheet [445]

microperforated El Rengle business building Carretera de Barcelona Mataró Manuel Ruisánchez

Microperforated panels on an office building [504]

microperforated International Zurich Airport Kloten, Zurich 8058 Switzerland Grimshaw

Adjustable perforated slats in Zurich Airport [474]

microperforated malaga Alfonso Braquehais Arquitectura de guardia gradhermetic

Big pivoting microperforated shutters in Málaga [375]

microperforated barcelona Ca l'Aranyó Research University Pompeu Fabra Nomen Arquitectes

Microperforations in 22@ [257]

microperforated pamplona navarra Biomedical investigation center C/ de Irunlarrea 3 Antonio Vaíllo i DanielJuan L. Irigaray Huarte

Perforated sleel shutters on investigation center [251]

Sauerbruch & Hutton microperforated GSW Charlottenstraße 4 Berlin 10969 Germany

Colorful folding perforated panels, S&H in Berlin [058]

 

In the following cases it can be seen that the perforation is excessive, with little improvement of vision range and less efficiency of solar protection.

renzo piano microperforated Fondation Jérôme Seydoux - Pathé 73 Avenue des Gobelins Paris, Paris Ile-de-France 75013 France unique wrapping

Microperforated metallic wrapping by Renzo Piano [542]

microperforated barcelona Escola Sant Gregori Jaime Coll López Judith Leclerc

Inefficient perforated zinc panels on school in Barcelona [528]

University of Queensland Global Change Institute Sta Lucia, Queensland Australia microperforated Hassell A product of Universal Anodisers

Microperforated vertical louvers in zero-energy building [530]

microperforated kanva montréal canada

Perforated shutter on housing in Montéal, by KANVA [325]