Innovative micro-house uses digital fabrication on low-cost timber construction

June 6, 2019 by  
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Can digital fabrication unlock a new frontier in low-cost timber construction? All signs point to yes in the IBA Timber Prototype House, a micro-architecture project that’s been playfully described as “a log cabin turned on its side” by its designers at the Institute for Computational Design and Construction at the University of Stuttgart . Designed to meet PassivHaus standards, the airtight and highly sustainable building system was developed as part of the International Building Exhibition (IBA) Thueringen and is currently on show in Apolda until September 29. The IBA Timber Prototype House shows how computational design and fabrication technologies can turn low-cost timber construction into an environmentally friendly, economical and architecturally expressive way to build. The mono-material building consists of a series of staggered upright spruce timber frames with thin slits that serve as stress-relief cuts to prevent splitting and dead-air chambers to increase insulation values without compromising structural capacity. Digital fabrication and five-axis CNC milling also allowed for the creation of precision-cut airtight joints for connecting the timber elements so that no metal fasteners or adhesives were needed in construction. “Conventional building systems have a vast array of different materials embedded in them, which often have very high embedded energy costs and are difficult to separate for recycling ,” explains the ICD team. “In contrast, this research draws on traditional joinery, and a system was developed that relies purely on wood elements for structural connections and airtight enclosure, minimizing system layers and ensuring easy disassembly for end-of-life recycling. Furthermore, the project sources all the wood from within the state of Thueringen, where the demonstrator was built, allowing the team to minimize the embodied energy costs associated with moving materials over transportation networks.” Related: This geometric pod is an ultra-light micro-office on wheels The tiny building’s curving walls and roof are also a result of digital fabrication, while simulations of the home’s energy efficiency—the house achieves a U-value of 0.20 W/(m^2K) without additional insulation—have indicated that the prototype should perform up to PassivHaus standards even during cold German winters. + ICD Photos by Thomas Mueller

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Innovative micro-house uses digital fabrication on low-cost timber construction

A new study estimates how many people will die from global heating in your city

June 6, 2019 by  
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A new study reveals the severity of global heating by calculating how many heat-related deaths would occur in major U.S. cities if the world continues to heat at the current rate. New York, Los Angeles, Chicago, Philadelphia and Miami are predicted to see the highest number of deaths every year, but with each half degree cooler that the world remains, hundreds of lives can be saved. The study estimates that if the world continues on the current path to heat up to 3 degrees Celsius above the average pre-industrial global temperature, 5,800 people would die annually from heat-related deaths in New York City, 2,500 in Los Angeles and 2,300 in Miami. The analysis included 15 cities, and the numbers may be conservative, because the researchers did not adjust for additional temperature increases from urban heat island effect . The calculations also did not adjust for population growth nor potential adaptation measures. Climate justice advocates, particularly from vulnerable small islands, have been vocal about the need to curtail global warming to just 1.5 degrees Celsius. Studies show that increasing temperatures will lead to disastrous coastal flooding, drought, sea level rise and extreme weather. This most recent study predicts that by meeting this ambitious target, 2,716 lives could be saved every year in New York City alone. Related: Climate twins — which city will your city feel like in 2080? By demonstrating specific numbers and individual lives lost, the researchers are hopeful their study will contribute to mounting evidence that radical action must occur to stop the climate crisis . “Reducing emissions would lead to a smaller increase in heat-related deaths, assuming no additional actions to adapt to higher temperatures,” said Kristie Ebi, a study co-author from the University of Washington. Despite President Trump’s efforts to expand the oil and gas industry both nationally within the U.S. and internationally as a major export, the average American is increasingly concerned and fearful about global warming. In fact, climate change is a central issue for democrats in the upcoming 2020 election and will certainly spur conversation and debate, though time will tell if it will also spur action. + Science Advances Via The Guardian Image via Martin Adams

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A new study estimates how many people will die from global heating in your city

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