Timber Construction Doesn’t Have to Be “All or Nothing”

How Hybrid Curtain Walls Can Drive Sustainable Innovation in Architecture

December 5, 2018

Principal, NBBJ

Editor’s Note: This post was adapted from the white paper “Hybrid Timber: Performative, biophilic and beautiful” [PDF].

The increased use of timber in construction is a growing and robust opportunity. Wood evokes deep passion and motivation, but why? For one, it’s exciting to have technological and structural advancement within an industry that has been fairly constant since wood balloon framing was invented.

In addition, the prospect of managing our forests sustainably is the future. It supports the use of wood while avoiding the use of old growth species, instead using young saplings or beetle kill forests. It creates sustained carbon capture by circumventing the carbon release that occurs at the end of a tree’s life through decomposition, thereby reducing greenhouse gas emissions. Other benefits include low embodied energy, low thermal conductivity compared to aluminum or steel, better indoor air quality (IAQ), biophilic connections supporting a sense of well-being and health, and the outperformance of other building materials “cradle-to-cradle.”

The use of wood in curtain wall construction, in particular, is an emerging trend. A typical approach to long-span exterior curtain wall design is an aluminum curtain wall framing with secondary steel support—but this convention is being challenged by the use of wood as the primary structural support of the glazing.

Given the industry’s unfamiliarity incorporating wood within typical curtain wall assemblies, this proves to be a challenge, for several reasons:

  • Interest in bidding: The curtain wall market has been busy, making it difficult to draw interest in bidding, especially for smaller scale work.
  • Atypicality: The use of wood is not familiar to most large-scale builders.
  • Cost: The prior two variables drive cost upwards, even though the cost of glue-laminated timber is more cost-effective than steel at similar spans.
  • Engineering: Wood does not possess the same properties as steel, and in fact its strength varies by species.

However, the appropriate application of wood is not a matter of “all or nothing.” Hybrid options using wood as the lateral supporting system or as a dead load support, combined with more conventional aluminum systems or a semi-unitized curtain wall system, can yield a more conventional and familiar system design, making wood a more viable option for cost and schedule.

In one example I worked on, the curtain wall subcontractor provided the engineering of the curtain wall and attachments to the glue-laminated timber, and the structural engineer of record provided the engineering of glue-laminated timber and its attachment to the primary structure of the building, similar to the use of a more conventional secondary steel system.

In another example, the curtain wall subcontractor provided the entire engineering of the composite system, including the wood dead load supports, which transfer the window system loads to the primary structure.

With both of these options, the curtain wall consultants worked closely with the full engineering team as the point of intersection and peer-review for the system as a whole. Wood suppliers provided design information on the wood and glue-laminated timbers available, and communicated their unique strength characteristics by species to the design team.

Essential to the success of these projects was our strategic and proactive planning toward connecting markets and suppliers and building consensus between them, defining engineering roles and responsibilities, and effectively addressing fire and combustibility concerns.

Photo © Lawrence Anderson

Building a proper team with supportive and knowledgeable industry partnerships is paramount in being able to meet these challenges with clarity. Therefore, it is critical to partner with both an experienced timber/curtain wall engineer and forestry partners that have an in-depth knowledge of the process and the fluency to ask the right questions at the right time to support success and mitigate risk. I also recommend partnering with local fire authorities early in the process, onboarding them to the use of timber prior to permit submission.

Our hope is to create a ripple effect for the imperative change needed at a larger, industry-wide scale. Similar to code related energy requirements, only larger-scale demand will propel cross-industry advancement and expertise. This will drive innovation towards higher performance, reductions in our carbon footprint, less harmful chemical dependency and beautiful biophilic outcomes. The ultimate outcome will enhance our human experience with respect for our planet.

For more on timber construction, please read my white paper “Hybrid Timber: Performative, biophilic and beautiful” [PDF].

Banner photo courtesy of NBBJ/Sean Airhart.

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What Does the Future of Urban Healthcare Look Like?

Thoughts on a ‘Healthcare Quarter’

August 6, 2018

Principal, NBBJ

Editor’s Note: This post derives from an NBBJ-hosted breakfast talk at the British Library in London focused on the future of the NHS. NBBJ Partner David Lewis was joined by speakers Jodie Eastwood, Chief Executive of the Knowledge Quarter; Peter Ward, Director of Real Estate Development at King’s College London: Guy’s and St Thomas’ NHS Foundation; and Richard Darch, Chief Executive of the healthcare consultancy Archus.

As we celebrate the 70th year of the NHS, the future of healthcare in the UK has arguably never been a hotter topic with no shortage of debate on how the world’s largest publicly funded health service will survive.

The people who work and care within the NHS remain its most valuable asset and they will continue to shape national pride in what polls have shown symbolises ‘what is great about Britain’.

But what about its places? How is the public healthcare estate adapting to the demands of an ageing population, new technologies and severe financial pressures? And how will it look in 10, 20 and 30 years’ time?

 

Creating ‘health engines’

Healthcare estates should be spaces where everyone comes together for the benefit of healthcare. Not in some utopian dream but in the form of ‘health engines’ that combine and convert the power of healthcare, research and development and industry to deliver positive progress. Instead of selling off surplus land for residential use and reducing the NHS estate, there is potential to create health ‘eco-systems’ in our cities — healthcare quarters with hospitals acting as anchor tenants surrounded by layers of research and wellness services, step-down care, commercial tenants and public social spaces.

These aspirations chime with the concept for a ‘health return’ from public assets, land and buildings to promote healthy lifestyle and wellbeing.

 

Everyone needs good neighbours

The Cambridge Biomedical Campus and Royal Liverpool University Hospital demonstrate how healthcare, research and commercial developments can benefit from being co-located. It’s important that spaces knit healthcare sites back into cities and their urban context, promote synergies between healthcare and education and create societal hubs that encourage public access and community use.

This is the point of view championed by Jodie Eastwood of the Knowledge Quarter, a partnership of more than 90 knowledge-rich organisations based around King’s Cross, St Pancras, Bloomsbury and Euston. Jodie espouses the power of cross-disciplinary partnerships saying “the real value of collaboration comes when you cross sectors.”

 

101257_00_N4_nbbX

At the Quadram Institute in Norwich, researchers and clinicians collaborate around an open atrium overlooked by research labs and balconies. (Photo courtesy of Sean Airhart/NBBJ)

Science on show

However, co-locating sectors alone is not enough. We must create buildings that actively promote formal and informal collaboration; spaces that showcase health and science in one place.

Blurring spatial boundaries can bridge the gap between fundamental research and application in practice, allowing those differing aspects of innovation to drive each other.

At the same time putting science on show, making it accessible to the public, helps to demystify scientific endeavour, while sowing seeds for education and future talent.

The Quadram Institute in Norwich is a case in point, incorporating an environment in which clinicians work alongside scientists at the forefront of food science, gut biology and healthcare research under one roof with one shared identity and entrance.

Bringing together the Institute of Food Research, the University of East Anglia and the gastrointestinal endoscopy facility of Norfolk and Norwich University Hospital, the Quadram Institute conducts bench-to-bedside research and clinical care related to health and diet.

Within a hierarchy of spaces, the clinical research facility and patient treatment areas are more private to protect patients’ and participants’ confidentiality, whilst the research space is open to showcase the science within.

 

Future proofing and flexible facilities

There are also many lessons the NHS needs to learn from when designing the next generation of healthcare facilities and buildings.

Purely clinically-led design isn’t working and must be supplemented by research-led thinking that inspires sustainable, adaptable buildings offering operational flexibility.

We must also champion strong and proven healthcare, research and technology hubs, such as the MaRS Discovery District in Toronto and UCSF Medical Center at Mission Bay, as the best breeding ground for future start-ups and world-leading innovation.

Yes, many garage start-ups have turned into multinational powerhouses but most new ventures will have a higher chance of success from being based in well-connected places that benefit from local cultural and heritage amenities.

 

Technology drives talent

Finally is the undeniable importance of digitalisation and AI to the future of healthcare and driving the talent that will drive healthcare forward. It will be fascinating to see how emerging technologies will advance the practice of medicine, improve health and empower patients to be active participants in their own care. Trends in digital diagnostics, robotics and data are allowing hospitals to put the human experience first.

For example, many hospitals in the United States are already being designed with extra-wide corridors, allowing robots to deliver medicine and other critical supplies directly to patient rooms. Meantime, IBM’s Watson is being utilized to diagnosis illnesses — especially those that are hard to detect — which then impacts the experience of patients and the quality of care they receive.

The NHS needs to sell a vision of the future now, instil public confidence and demonstrate it has a plan to create a future for itself. What’s needed is true collaboration, openness and innovation, inclusivity, community and a need to think flexibly. Don’t let’s design for just one need but let’s create a sustainable health and wellbeing community for the next 70 years.

Banner image courtesy of Timothy Soar/NBBJ.

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Neuroscience Is Optimizing the Office

How a Molecular Biologist and an Architecture Firm Teamed up to Reimagine the Workplace

July 3, 2018

Partner, NBBJ

@ryanjmullenix

Editor’s Note: This post was originally published by the Wall Street Journal. It was co-authored by Ryan Mullenix, partner at the architecture firm NBBJ, and John Medina, developmental molecular biologist, author and affiliate professor of bioengineering at the University of Washington School of Medicine.

 

As competition for employees and ideas increases, employers are looking to office design to give them an edge. That’s why companies like Amazon, Google and Samsung have asked us to create spaces that directly affect how their employees think and feel. Our research over the past four years has shown how design affects human biology and experience, allowing us to maximize comfort and productivity. This means creating spaces with all five senses in mind and thinking about the impact of everything from diet to color theory. Here’s a look at how the office of the future could promote the health of the organization and the individual.

 

Keep It Down — Unless Brainstorming

Neuroscience tells us: The human voice evokes some of the most potent emotional responses in our auditory experience. Voices in excess of 55 decibels — roughly the sound of a loud phone call — cause measurable stress. Even more disruptive are overheard “halfversations,” in which the listener is privy to only one side of a dialogue; our brains automatically imagine the other.

How design can help: Sonically diverse environments — private phone booths, outdoor gardens and acoustically buffered spaces for activities like brainstorming and team-building exercises — keep noise away from traditional desk setups. Sounds found in nature, like moving water, can be particularly helpful for drowning out disruptions. At Amazon’s Spheres, an office for 800 employees that opened in Seattle this winter, a rushing brook and waterfall permeate the workspace with continuous, calming white noise.

 

Go Green

100876_02_Spheres_N17_mediumNeuroscience tells us: Exposure to plants makes us less emotionally volatile and error prone; even pictures of plants have a calming effect. As a bonus, certain plants give off antiviral, immune-boosting chemicals called phytoncides that promote office health.

How design can help: Amazon’s Spheres contains more than 40,000 plants and hundreds of species, but just one plant per square meter can benefit mental and physical health — while creating a more pleasant-smelling work environment.

 

Seek Visual Relief

Neuroscience tells us: Humans have an evolutionary need for private spaces that offer a sense of safety, but we also crave vistas for inspiration — a condition known as prospect refuge. Open spaces foster creative thinking, while close confines increase focus. Specific colors have been shown to enhance or hinder these abilities.

How design can help: Enclosed, comfortable booths promote focus, while open floor plans with low seating, high ceilings and outdoor views can aid in brainstorming and creative ideation. At Tencent’s headquarters in China, seating along the windows provides views of the surrounding hillsides, while benches in secluded outdoor garden spaces give employees private, peaceful retreats. Colors should be deployed wisely: blue for stimulation, green for focus, and orange for decision-making.

 

101014_00_Samsung_N9_mediumGet a Move On

Neuroscience tells us: Just 30 minutes of aerobic activity can boost executive function and reduce stress; outdoor exercise increases these effects. At just 1.8 miles an hour — a moderate walk — reaction time and quantitative skills improve.

How design can help: The layout of each floor should encourage physical activity, with elevators hidden in favor of stairs, indoor and outdoor workout spaces where possible, and designs to accommodate walking meetings. At Samsung’s North American headquarters, employees are no more than one floor away from an outdoor terrace, where they can attend yoga classes or walk through campus gardens for meetings.

 

Eat to Think

Neuroscience tells us: Mediterranean-type diets — rich in fruits, nuts and vegetables — have been shown to boost cognition, particularly executive function, which is responsible for problem-solving and impulse control.

How design can help: Our design for the Bill & Melinda Gates Foundation campus courtyard included blueberry plants, which employees can pick and enjoy.

 

Banner image courtesy of NBBJ.

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