The original version of this article appeared in ArchDaily.
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Large openings and panes of glass without connecting posts give homes a seamless connection between the indoors and the outside.
Malibu Crest, a 2019 remodel of a 1949 International Style home, was a vital undertaking by the architecture firm Studio Bracket that aimed to expand the structure’s square footage and panoramic views of Malibu, while retaining over 50 percent of the home’s original walls.
Open corner sliding glass doors are an especially useful product for homes with outdoor amenities.
The energy efficiency of these open corner systems is nearly identical to those of regular windows and glass doors, making their primary advantage the added aesthetic value. Open corner windows and doors, through eliminating a corner structural frame or wall, have the effect of blurring the boundaries between interior and exterior, making walls feel less like walls and more like a portal to the outdoors. Flattening the view into what feels like a 3D landscape painting that spans two adjacent walls, open corner windows visually bring light and nature into a home or room even while maintaining the physical barrier between the two.
An open corner configuration of multi-slide doors creates an indoor-outdoor dining area.
When opened, open corner sliding glass doors conversely remove the barrier between interior and exterior completely, an effect accentuated by the lack of a corner frame communicating the structural boundaries of the home. Instead, any exterior space and the internal room become one, making open corner glass doors an especially useful product for homes with outdoor amenities such as grills, dining areas, or pools.
Architect Jessica Hutchison-Rough used large glass panes with butt-glazed corners to achieve unobstructed views in this Arizona home.
One stunning example is an expansive home located in Scottsdale, Arizona, and designed by Jessica Hutchison-Rough of Urban Design Associates, Ltd. Employing several open corner glass windows, the home also features an open corner sliding glass door merging the interior kitchen and dining space with an additional dining area outdoors. Through this open corner, the dining space seems to be naturally enlarged rather than artificially extended into a sequestered patio outside. As a result, the space feels much larger, more open, and has access to more natural light and scenery.
Of course, to design for large expanses of open corner sliding glass doors, architects must give greater thought to structural considerations at an early stage. The primary consideration for the size of open corner sliding glass doors is therefore the width at which engineers can design an opening with a header that does not deflect. From the manufacturer’s standpoint, with the architect’s structural work executed adequately, Western Window Systems, for example, can design multi-slide glass doors up to 60-70 feet wide. For its Classic series, these doors are typically a maximum of 12 feet tall. However, using its Performance series, glass sliding doors up to 17 feet tall can be incorporated.
Some architects use additional corner supports removed from the sliding glass door track to ensure that structural requirements are met for the use of these open corner doors. For example, a home designed by A Parallel Architecture uses the open corner glass sliding doors to merge the interior living room area with additional outdoor patio space, including a dining area and infinity pool. While the design includes a structural support, it remains detached from the glass door track, retaining the sense of a dissolved wall and open space.
A Parallel Architecture designed this home in Austin, Texas to have 270-degree panoramic views with the help of open corner window configurations.
Likewise, the Cresta house designed by Jonathan Segal, FAIA uses an interior column at the corner to support an almost completely open ground floor with open corners and enormous sliding glass doors. Through these doors and a concrete floor that remains consistent throughout both “interior” and “exterior,” the traditional boundary between the two seems almost completely obliterated.
The indoor-outdoor living concept maximized the potential of this home with the addition of an open corner.
Open corners have the ability to open up a space immensely, invisibly merging indoor rooms with outdoor areas and bringing in both light and scenery. Without opaque walls delineating corners and boundaries, users can feel much more connected with nature, and a home, while retaining the same square footage, can feel unlimited, extending as far as the horizon line. Architects looking for ways to widen a space and facilitate outdoor living must consider the open corner sliding glass door – an extraordinary way of opening a home to nature.
Architects Studio Bracket; Jessica Hutchison-Rough of Urban Design Associates, Ltd.; Jonathan Segal FAIA; A Parallel Architecture
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