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Roof: The Latest Architecture and News

Rethinking the Flat Datum: Designing Space with Incline and Intent

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Historically, architecture and the built environment have insisted on creating flat, hard surfaces. In earlier eras, walking without paved ground meant mud-caked shoes, uneven footing, tripping hazards, standing water after rain, and high maintenance. Hence, as we shaped cities, we prioritized a smooth, continuous, solid horizontal datum. The benefits are real: easier walking, simpler cleaning, and straightforward programming—furniture, equipment, and partitions all prefer a level base. This universal preference for building on flat ground remains the norm and, for many practical reasons, will likely continue to be.

What's less recognized is that making a truly flat surface is surprisingly difficult—and many well-executed "flat" floors aren't perfectly flat at all. They are often gently sloped, calibrated to precise gradients for drainage. While interior spaces do not always require this, many ground floors and wet areas do incorporate subtle inclines as a safeguard—whether for minor flooding or to manage water that overflows from the street or plumbing when one of the discharge systems is malfunctioning.

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BIG Reveals “The Sail” Congress Center on the Seine Riverfront in France

Bjarke Ingels Group (BIG) has unveiled the design for a new congress center in Rouen, France, featuring a distinctive sweeping timber roof that reflects the city's long-standing relationship with the water. Located along the Seine riverfront, the building, nicknamed "The Sail," is envisioned as a public gathering place that reconnects the city with its waterfront while offering new cultural and civic amenities. Designed for the Rouen Normandy Metropolis, the project combines contemporary architectural expression with references to Rouen's maritime and urban heritage.

BIG Reveals “The Sail” Congress Center on the Seine Riverfront in France - Imagen 1 de 4BIG Reveals “The Sail” Congress Center on the Seine Riverfront in France - Featured ImageBIG Reveals “The Sail” Congress Center on the Seine Riverfront in France - Imagen 2 de 4BIG Reveals “The Sail” Congress Center on the Seine Riverfront in France - Imagen 3 de 4BIG Reveals “The Sail” Congress Center on the Seine Riverfront in France - More Images+ 12

BIG Unveils Design for Kosovo’s First Opera House with Undulating Photovoltaic Roof

Bjarke Ingels Group (BIG), in collaboration with ALB-Architect, has unveiled the design for the Opera & Ballet Theatre of Kosovo, a new cultural venue set to reshape Prishtina's performing arts landscape. As the first opera house in the Republic of Kosovo, the theatre will serve as a home for the country's Philharmonic, Ballet, and Opera, marking a significant step in the development of Kosovo's artistic institutions. The project includes multiple performance halls and a public plaza, reinforcing its role as a cultural hub within the capital.

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4 Solutions for Roofs without Eaves (and their Construction Details)

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In his Robie House, Frank Lloyd Wright created an ingenious arrangement of public and private spaces that slowly moving away from the street through a series of horizontal planes. Pronounced eaves made the interior space expand toward the outside. Considered the first phase of the American architect's career, the so-called Prairie Houses had marked horizontality, mainly due to the enormous plans created by slightly inclined eaves. Eaves are ubiquitous in most traditional architecture, and in addition to their aesthetic role, they serve several important functions, the primary one being to keep rainwater away from the building's walls and structure. But for some time now, we have seen plenty of projects with sloping roofs without eaves, forming pure and unornamented volumes. This brings us to the question: in these projects, how are practical issues such as draining rainwater?

Pitched or Flat? Different Types of Roofs for Houses

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In addition to their primary function, roofs are one of the most fundamental elements in the aesthetics of a building, taking different shapes, being composed of different structures and sealed by different materials. But, in addition to aesthetics, roofs need to meet the climatic conditions of where they are located, considering the periodic changes related to rain, sun and winds.

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The Corrugated Iron Roof: Avant-Garde or Unaesthetic?

It’s an essential architectural element, one we tend to immediately take note of when we look at buildings new to us – the roof. The roofs that shelter the buildings we see in our cities today are diverse in their typology. Flat roofs are a common sight in the city centers of urban metropolises, hip roofs are a popular choice for dwellings around the world, and the gable roof is arguably the most common of all, a roof type popular in stylized depictions of what a standard house looks like.

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Why Do Architects Insist on Using Flat Roofs?

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It is a commonly held belief by non-architects (and even some architects) that gabled roofs are inherently better than flat ones. The argument typically goes that a gable demonstrates a ‘form follows function’ sensibility, easily shedding water and snow using geometry and gravity. So, flat roofs might leak. While that’s true, this video blows the roof off the topic by taking a finer look at some points that might change your mind. This includes Louis Sullivan’s original reason for writing the phrase “form ever follows function,” as well as the ability of flat roofs to offer outdoor public spaces, supporting green roofs, structural simplicity, wind considerations, among many others. There’s also another, competing functional/formal reason for why a low slope roof might be more prudent than a more aggressive slope, even in snowy areas like Chicago.

Notre Dame Update: Restoration Work Advances and US Students Rebuild One of Its Roof Trusses Using Medieval Techniques

With three more years to go until the 2024 Paris Summer Olympics and the re-opening date announced by French President Emanuel Macron, Notre Dame's restoration work progresses. After a long safety phase and months of work interruption last year due to the pandemic, all burned timber from the roof has been removed, and scaffolding has been installed inside the cathedral. As a homage to the heritage structure and "the collective effort to rebuild Notre Dame", the Catholic University of America is building a replica of one of the cathedral's roof trusses in Washington D.C., using medieval techniques.

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Roof Folding House / MDA Architecture

Roof Folding House / MDA Architecture - Interior Photography, Houses, Facade, Handrail, ArchRoof Folding House / MDA Architecture - Interior Photography, Houses, Kitchen, Stairs, Facade, Table, ChairRoof Folding House / MDA Architecture - Interior Photography, Houses, Facade, LightingRoof Folding House / MDA Architecture - Exterior Photography, HousesRoof Folding House / MDA Architecture - More Images+ 14

  • Architects: MDA Architecture
  • Area Area of this architecture project Area:  460
  • Year Completion year of this architecture project Year:  2020
  • Manufacturers Brands with products used in this architecture project
    Manufacturers:  AutoDesk, Adobe, An Cuong Wood, Dulux, Trimble Navigation, +3

Gabled Roofs Experience a Revival Across North America

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Gabled Roofs Experience a Revival Across North America - Featured Image
Nova Scotia–based MacKay-Lyons Sweetapple Architects has built several steel-clad gabled houses like the East Dover House, shown here, because the material blends in with cliffside landscapes, rusts to fit geology, and needs zero maintenance.. Image Courtesy of James Brittain Photography

In this week's piece by Metropolis, author Kelly Beamon explores in her original article "the patriotism associated with pitched roofs and shares how architects are reimagining this staple of suburban house styles". According to its definition, a gable roof is a classic roof shape, usually in cold or temperate climates, consisting of two roof sections sloping in opposite directions and placed such that the highest, horizontal edges meet to form the roof ridge. Emblematic of the US, this article discusses its return to the urban fabric.