30X40 Design Workshop

How to Borrow Natural Light - An Architect's Strategy Guide

In this video Eric Reinholdt discusses natural daylighting strategies anyone can take advantage of. He begins with a short history lesson which describes how daylighting actually shaped the largest of cities in the US.
Length 07:25
Price Free of charge
Subject Architecture
Languages English
Video Transcripts English

About the video

In 1915 the 38-story Equitable Building in New York City was the largest office building in the world. Containing 1.2 million square feet of office space, it consumed nearly every available square foot of its diminutive lot and cast an equally large shadow on its neighborhood in lower Manhattan. Its construction inspired the enactment of the city’s 1916 Zoning Resolution, which was designed to preserve access to light and air at the street level. The resolution prescribed specific limitations for a building’s envelope — its outer walls — and would go on to shape the stepped forms that you see today on many of the iconic towers in the city.
This underscores the importance that access to daylight had in shaping even the largest of cities, the individual buildings that make up those cities and, more broadly, sensible building design. With an increasing focus on sustainable design practices, the smart use of natural daylight in our homes is no longer a luxury — it has become a necessity. At the heart of any good daylighting strategy is a concept of “borrowed” light: the capture of light falling on the exterior of a home and transporting it to the spaces where it’s needed.

Meet the instructors

Eric Reinholdt is a founder of Thirty by Forty Design Workshop which was established in June 2013 in a home he designed overlooking Acadia National Park on Mount Desert Island. In 2016, he designed and constructed the Long Studio to complement the Longhouse and serve as a full-scale model of his design principles and the latest in building science; this is the home for 30X40.
“My work celebrates humble materials, subtle contrasts and finely-crafted details. I have a strong interest in modern regionalist design, local materials and familiar building forms juxtaposed against modern, open floor plans. I employ a minimalist, Shaker-like palette of details inspired by the site and natural surroundings.”

Video syllabus

History of Light
Day Light Strategy