Roofing: The Latest Architecture and News

Our buildings become symbolic of the times we live in, reflecting the spirit of a given era, attending to different needs, lifestyles and functions. “Architecture should speak of its time and place, but yearn for timelessness,” says one of the most prominent architects of our time, Frank Gehry. For architectural innovators, exploring new technological potentials and envisioning ways to enrich people’s lives have long been driving forces, shaping responses to contemporary challenges. Today, sustainability stands as a key challenge, adding new dimensions to the debate, bringing together form, function, the responsible choice of materials and long-term thinking. Adapting to these demands has never held more significance.

The roof is one of the most essential structural elements of nearly every construction. It is the element that allows a delineated space to transform into one that feels protected. Strongly related to the climatic conditions of the context, the roof's variations in aesthetic and structural design have allowed architects to indulge their stylistic preoccupations to convert roofs not only into elements of closure and climate protection but into a character-giving feature that lends identity and flair – especially when the roof becomes a wall.

Following this opportunity, we want to highlight great examples of roofs that also become walls: 13 houses in which the roof completes the façade, delineating not only the interior in its vertical sense but also in the horizontal one.

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As climate change continues to reach unprecedented levels, many are pointing towards enhancing circularity in the construction sector. Essentially, the circular economy aims to eliminate waste and the continual use of resources by repeatedly reusing, repairing or recycling materials. The cyclical approach is able to meet demand and minimize CO2 emissions by extending a product’s lifespan, which is especially important when dealing with limited resources. Unlike the traditional linear extractive method –where everything goes through an extremely contaminating process of 'take-make-waste'–, circularity keeps materials in use for as long as possible to extract maximum value. This, in turn, reduces pollution, regenerates natural systems and contributes to a healthier built environment, hence building economic, natural, and social capital.

The mystery of color intrigues us from a young age. Mixing paints to make new hues or watching sunbeams and crystals create rainbows becomes a fascinating part of our childhood long before we ever hear of chemistry and optics. As we grow, color continues to play a major role in how we experience the world, impacting mood, emotions, productivity and behavior. This explains why humans are naturally drawn to certain hues; it is hard-wired into their brains. There is a common perception, for example, that red, orange and yellow palettes create a feeling of warmth and cheerfulness, while browns, grays and blacks evoke sadness and melancholy. Of course, the same applies to design and the built environment, as together with texture, light and shadow, the spaces around us are defined by tones and nuances that shape what we see and how we feel. Hence, color ultimately transforms the way we perceive, feel and live architecture.

In architecture, the concept of daylighting refers to when buildings allow natural light inside to provide a number of benefits, from enhanced visual comfort and productivity, to improved health and higher energy savings. However, to reach optimum levels of sunlight, reaching a balance is key; while too much can produce an uncomfortable glare and tremendous amounts of heat, too little can lead to health deficiencies and a greater dependency on artificial lighting. In that sense, the qualities of polycarbonate panels are unmatched, becoming an attractive choice for facades and roofs by achieving a soft, diffused light with varying levels of transparency, brightness and opacity.

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 gaze is a tool that the architect uses constantly but does not fully value. It is an instrument that, in addition to allowing us to know and recognize our reality and the phenomena that arise from it, can work as a method of analysis. "Entrearcos (Between-arches): architecture of connection" is a research project developed by the architect Daniela Silva Landeros that studies, in the specific case of the Ciutat Vella neighbourhood of the city of Barcelona, the issue of arches in our cities. And Silva Landeros does so from alternative points of view that call into question the way we are used to looking.

Researchers credit the Hanging Gardens of Babylon as the first examples of green roofs. Although there is no proof of its exact location and very little literature on the structure, the most accepted theory is that King Nebuchadnezzar II built a series of elevated, ascending terraces with varied species as a gift to his wife, who missed the forests and mountains of Persia, their local land. According to Wolf Schneider [1] the gardens were supported by brick vaults, and under them, there were shaded halls cooled by artificial irrigation of the gardens, with a much milder temperature than the outside, in the plains of Mesopotamia (present-day Iraq). Since then, examples of green roofs have appeared all over the world, from Rome to Scandinavia, in the most diverse climates and types.

Nevertheless, inserting plants on roofs is still viewed with suspicion by many, as they are thought to be costly and difficult to maintain. Others, however, argue that the high implementation costs are quickly offset with savings in air conditioning and especially that occupying the building's fifth façade with vegetation is, above all, a rational solution. In any case, the question remains as to how green roofs can really help with climate change.

When it comes to attics, we often imagine underused spaces in homes and buildings, such as warehouses or rooms that are exclusively used to shelter infrastructure systems. However, reflecting on the reuse of traditional attics in 19th-century Parisian buildings as housing, which is happening nowadays, one realizes that these spaces can be reinvented and, with a little creativity, they can provide impressive living spaces.

Dominique Perrault Architecture has won the competition to design the new retractable roofing of the Suzanne Lenglen Tennis Court. Bringing additional value to the “French Open” site, the “architectural intervention not only creates a roof but also proposes a large-scale architectural ensemble whose silhouette dialogues both with the surrounding landscape and the architecture of the existing building”.

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Inspired by vernacular architecture, Kathryn Larsen is a bio-based designer working with seaweed. Throughout her career, she has been doing an intensive investigation into eel-grass, a material that has been used for centuries around the world. Larsen wants to apply all the benefits of this material (rot resistance, fire resistance, non-toxic, insulation characteristics comparable to mineral wool, and its ability to create carbon negative buildings) into prefabrication development and other technologies that enable the creation of new cladding and other elements, such as insulation batt and acoustic panels.

During the latest Design Indaba Festival, we had the chance to interview Kathryn. Read the interview and learn more about her work below.

As concern grows regarding the contribution of fossil fuels to global warming, solar energy is an increasingly attractive power source due to its zero emissions and infinite supply. As builders turn to incorporate solar energy systems into their projects, many options are available to harness the power of the sun for commercial and industrial installations. While AEC Daily’s course on “The Good, the Bad, & the Ugly” of rooftop solar photovoltaic systems might not be a 1960s spaghetti western, it will guide you through the wild west of installation processes and options.

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Solar tiles operate identically to the photovoltaic panels that are already widely used in construction. The primary difference between them lies in their assembly: whereas photovoltaic panels are attached to an existing roof, solar tiles are part of the roof's construction from the start, taking the place of regular tiling.

The tiles are formed by photovoltaic cells that, when they receive sunlight, create an electric field capable of providing electrical energy for use inside the building. Each tile is connected by cables to the power distribution board.

From ceramic tiles and metal sheets for roofs to wooden decks and floating cement tiles for roofing, roofing materials not only contribute to the drainage and protect the lower layers from solar radiation and wear, but also have an important aesthetic function.

Currently, when choosing the roof covering, you can find a wide variety of materials and dimensions, each with specific characteristics, determined by the type of roofing, the location of the project, and its future maintenance.

Review a catalog of options to incorporate creatively into your designs, below.

Tesla CEO Elon Musk has announced via Twitter that his company’s fully-integrated solar roof system is nearly ready to be released to the public, and will begin taking orders on the shingles starting next month.

The solar roof project was announced this past October after acquiring energy services provider SolarCity for $2.1 billion. Offered in four different styles – smooth glass, textured glass, French slate and Tuscan glass – the shingles would allow homeowners to make the switch to solar without having to change their aesthetic tastes. Though exact costs have yet to be released, Musk believes the system could be more affordable than a traditional roof.

Focussing on prefabricated and sustainable means of construction, Italian practices 3GATTI Architecture Studio and OFL Architecture have envisioned an airy forest resort and spa in the historical region of Kurzeme, Latvia. The Pinecones Resort does its name justice by the spiky cone-like units that inhabit the site, made possible through the use of an inflatable roof constructed from ETFE, a lightweight polymer film.

ETFE, or Ethylene Tetra Fluoro Ethylene, is the most extensively used material for inflatable roofing. Being 100% recyclable and having a minimal carbon footprint in terms of transportation and installation, the material is highly sustainable and in the case of this particular project, offers flexible and dynamic building forms.

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Elon Musk has revealed his company Tesla’s latest world-changing innovation: a solar roof system so fully integrated into a home’s architecture as to be indistinguishable from a traditional roof.