By Jesse Walton, Jay Hindmarsh and Anne Schopf

Following the historic 1997 Kyoto Protocol, and the growing understanding of the role that the built environment has on global warming, Mahlum began in earnest to incorporate sustainable strategies into our work. That early commitment resulted in the firm being awarded two national AIA COTE Top Ten Awards for The Evergreen State College’s Seminar II Building (2005) and Lake Washington School District’s Benjamin Franklin Elementary School (2006). In addition, Mahlum’s Providence Newberg Medical Center became the first LEED Gold Certified Hospital in the nation (2007). All these projects looked to low energy solutions, including natural ventilation strategies for summer comfort.

Our commitment to a low-energy future deepened on May 8th, 2009 when we signed onto the newly created AIA 2030 Commitment. Mahlum made this ambitious public commitment to prioritize energy performance in pursuit of carbon neutral buildings by the year 2030 in alignment with Ed Mazria’s 2030 Challenge.

At that time the year 2030 was more than 20 years in the future and while the commitment we had signed seemed daunting, at the time we had no idea (1) how far away we were from a carbon neutral future, and (2) how to accomplish the goal. Now that we are deep into 2020 and less than 10 years away from the 2030 goal of carbon neutral buildings, we are all too aware of the actual time, dedication and means it will take to achieve this goal.

For the first five years after we signed onto the 2030 Commitment we struggled with two things. The first was the creation of our Sustainability Action Plan (SAP) which was intended to be a publicly shared document outlining the firm’s culture of sustainable design and operations. We formed various committees and circulated drafts, but with the devastation of the recession, the document sat on our server in draft form, remaining incomplete.

The second struggle was how to collect every project’s predicted Energy Use Intensity (pEUI) and what form it should take. Most of our projects at the time did not have a pEUI or a person on the team who could run an energy model to calculate the pEUI. When it was possible, we leaned on our mechanical engineers to calculate each project’s pEUI. We also asked project teams to focus on collecting the pEUI data into Access Databases and Excel Spreadsheets, which we then submitted to the AIA annually. By gathering this information, we learned that though we were reducing our average pEUI, we were not actually meeting the current target of 60%. Though disappointing, at least this data collection effort kept us honest about where we stood.

Below is our first pEUI Reduction Percentage Report to the AIA in 2011:

A renewed interest in finalizing our firm’s SAP arose and we formed the Sustainability Steering Committee (SSC), a group of architectural staff, including leadership, who met regularly and focused on the firm-wide integration of sustainable design. The SSC, with input from the entire office, took two years to finalize and publish our SAP.

In 2015 the AIA created the 2030 Design Data Exchange (DDx), an online database of all AIA 2030 Commitment signatories’ projects and their related pEUI data. This helped regularize the type of data collected and the location to collect it in. Through trial and error, we also learned that each team needed support to collect the pEUI data for the DDx on an annual basis, so we formed the 2030 Birddogs. This small group of architectural staff (around six participants), distributed between our Portland and Seattle offices and our Healthcare, Housing, and K-12 studios, partnered with each team to make sure the data submitted to the DDx was accurate and complete. In addition, during our office’s bi-annual project check-in with leadership we asked project teams to update an Energy Use Intensity Speedometer which built in accountability for the pEUI regularly, as shown below.

Where are We Now?

After 9 years of consistent pEUI data collection and using new tools like Tableau Public to better understand this data, we now have a detailed understanding of where we are in relation to the 2030 goal of carbon neutral buildings. Since 2013 we have annually increased our energy efficiency 4%, and since 2017 we have had an energy efficiency of greater than 50% – achieving a higher pEUI savings than the average AIA 2030 Commitment reporting firm. In 2019 our project’s pEUI savings was 56%. While this did not meet the 70% energy efficiency goal in 2019, if we extrapolate our historical improvements of 4% annually it is realistic that we can achieve 100% energy efficiency by 2030.

In 2020 we decided to analyze the 2019 pEUI data using Tableau Public. We created an interactive data visualization and found several compelling findings that highlighted some correlations and differences outlined in the 2018 Summary Report of the AIA 2030 Commitment, which currently represents the national average from reporting firms.

  1. We found that our new construction work was 19% more energy efficient than the national average while our renovation work was 19% less efficient than our new construction work. For example, Mahlum’s renovation work at a 45% reduction aligns with the 2018 report, but our new construction work at 64% is 19% more energy efficient than both our renovation work and the national average for new construction work.

  2. Our K-12 and Higher Ed work at a 55% reduction was slightly better than the 53% reduction in the 2018 Report. Our healthcare work at 48% reduction was on par with the Healthcare work in the 2018 Report, but 7% less efficient than our K-12 and Higher Ed work.

  3. Our energy modeled projects had a 58% reduction whereas our projects that were not energy modeled had a 42% reduction, a 16% delta. The 2018 Report notes a 25% delta between the two, a larger discrepancy between energy modeled and non-energy modeled projects.

  4. Our projects in Washington State have an average 62% reduction, while our Oregon work is a lower 46% reduction – a 16% delta. Our 2019 Washington State work was designed under the 2015 IECC with Washington State Amendments, which aligns with ASHRAE 90.1-2013 energy efficiencies. Our 2019 Oregon State work aligns with the 2014 OEESC and ASHRAE 90.1-2007 energy efficiencies. The National Impact of ASHRAE 90.1-2016 Report notes that the difference between 2007 and 2013 versions of 90.1 is 14%, making it close to the 16% difference we are seeing between our work in Washington and Oregon. With the new Oregon 2019 Zero Energy Ready Commercial Code implemented at the end of 2019 we expect to see our new Oregon projects in 2020 align with the energy efficiencies we have been seeing in Washington State for the past three years.

Below: Our pEUI Exploratory Dashboard for AIA 2030 Commitment 2019 Data created in Tableau Public.

How We Get to Carbon Neutral and Achieve the 2030 Challenge

  1. Focus on Renovation work. Even though our New Construction Work is performing significantly better, we will need to focus our efforts on renovation work to bring it up to the same energy efficiency levels as our new construction work.

  2. Energy Model all projects. Considering our energy modeled work is performing 16% better than our non-modeled work, we will advocate for all projects to use energy models during design to continue to build energy efficiency awareness.

  3. Focus on our lower efficiency Healthcare work. Since our Healthcare work is 7% less energy efficient than our other market sectors, we will need to transfer some of the energy efficiency strategies from our higher performing K-12 and Higher Ed work to our Healthcare work.

  4. Implement Washington State efficiency standards into our Oregon projects. With the new Oregon Zero Energy Ready Codes now in effect in 2020 we will take the lessons we learned complying with the Washington State energy codes to our Oregon work including continuous insulation above and below grade, reduction in thermal bridging, and tight air barriers. Now that the two state’s codes are more closely aligned, the efficiency of our Oregon projects should increase by 14%-16%.

  5. Measure & Collect Actual Energy Use Intensity (EUI). With inspirational efforts like the Seattle Energy Benchmarking Program which requires the public disclosure of EUI for buildings over 20,000sf on an interactive online map we have started to collect our own projects EUI to see if they align with our predictions during design.

  6. The Addition of PVs. The few projects we have to date that meet the 70% and 80% reduction targets of the 2030 challenge are really Net Zero Energy Ready, meaning that with a large PV Array they can achieve 100% net energy reduction aka Net Zero Energy. Most of our work at Mahlum is low rise construction and can handle large PV arrays on the roof, or Community Solar must be integrated to achieve Net Zero Energy.

  7. Embodied Carbon. The AIA 2030 Commitment signatories have been dedicated to focusing on operational energy and carbon impacts. Now that our buildings are more typically seeing high energy efficiencies it is even more important for us to focus on the embodied carbon and its impact on our climate – but that is for another post.

To 2030 and Beyond!

In the mid 90’s we started our sustainability journey with a handful of project specific goals to achieve LEED certification. Those goals have since snowballed into a firm-wide effort of accountability to our planet with the implementation of energy-efficiency and low-carbon goals into all our work. In 2020 we now have measurable data that shows us where we are in relation to the goals of the 2030 Challenge, and how much further we must go to get there.

When considering the daunting task in front of us we, as architects more aware than most of how distant carbon neutrality is, must remember the words Greta Thunberg spoke in September 2019, “You must take action. You must do the impossible, because giving up can never be an option.”

As a partnered program of Seattle Design Festival’s virtual programming, About Time, Listen Now engages our family, friends and neighbors by gathering their personal stories about times when they truly felt connected with someone who was different from themselves.

Each of us comes to our community bringing the stories that have made us who we are. Stories have deep power. One aspect of that power is the ability to either connect or separate us. People come together through work, organizations, and initiatives, but what brings hearts together and moves us to feel beyond ourselves are the personal memories that we share. In that spirit, it is About Time to truly hear from our communities. It is About Time to listen deeply and amplify the individual stories that reflect today’s shared experiences.

We all inhabit a physical position in our community and are nodes within a complex network.

This communal web is constantly in flux, pushing and pulling with the pressure of everyday life, and responding to our own individual influences. When we pause to listen to the story of our community, will we find a moment that moves our hearts? The act of extending beyond one’s place of comfort by sharing a personal story with another opens our hearts and offers us the chance to move closer together.

It is About Time to recognize and share our differences in culture, race, religion, and political viewpoints. It is About Time to remind ourselves what we share as human beings.

We reached out to our communities and asked if they would be willing to share their stories.

We called family, friends and neighbors and explained that we were gathering stories about the many ways people can come together and form meaningful connections through shared memories. We asked if each person would be willing to share a story — a personal moment in their life where they felt truly connected with someone who did not look like them.

We were thrilled with the response and within a couple of weeks we were gathering sound clips from all over the country. We’ve been deeply moved by our community and are excited to share these stories far and wide.

Listen Now is live. Come and take a listen.

We also recommend you visit Design in Public for the full line-up of multi-design discipline events happening August 15-23, 2020, all exploring the theme of About Time.



We can no longer remain silent. Our communities are suffering. The killing of George Floyd, Ahmaud Arbery, Breonna Taylor, Manuel Ellis and the endless acts of racism and injustice in our society remind us of how far we are from realizing a world where each of us is able to feel safe in our communities – free of fear, discrimination, and oppression.

We live in a society where there are great inequities in healthcare, education, shelter, and personal safety. These inequities persist along racial lines. In Portland and Seattle, we want to believe that we live in progressive cities where these inequities do not exist. We want to believe everyone has equal opportunities and receives fair treatment, and yet the protests in our cities in recent days remind us that we are far from this ideal.

Our world must change. It’s time.

As the injustices surround us, we grapple with what to do beyond the protests. We are all beginning from different places, but to begin we first and foremost need to listen and learn as much as possible. The resources on-line are almost limitless when you start to dig, so we pulled out some that rose to the top. It’s a start and an invitation to begin a deeper understanding by listening, learning, patronizing local businesses, and supporting organizations fighting to dismantle racist policies in our communities

In that spirit, we share them here.




POC Online Classroom
Through resources, syllabi and zines, POC hopes to amplify the voices of marginalized communities, educate others and themselves on critical social justice issues, empower marginalized peoples, and incite change.

How to be an Ally
Taught by Kimberly Harris in two, 2-hour sessions on Saturdays in June for $30 each. Register here:

Uncomfortable Conversations with a Black Man
Former NFL football player and current co-host of “Speak For Yourself” on Fox Sports 1, Emmanuel Acho is creating an ongoing series of 10 to 15 minute videos in which he hosts uncomfortable conversations with white people.

Your Black Friends Are Busy
A growing resource for learning about anti-racism and supporting the people and organizations doing important work for the Black Lives Matter movement.


(Please consider ordering books from black-owned independent bookstores.)

How to Be an Antiracist by Ibram X. Kendi
“Kendi has gifted us with a book that is not only an essential instruction manual but also a memoir of the author’s own path from anti-black racism to anti-white racism and, finally, to antiracism. . . . How to Be an Antiracist gives us a clear and compelling way to approach, as Kendi puts it in his introduction, ‘the basic struggle we’re all in, the struggle to be fully human and to see that others are fully human.” —NPR (You can order the book here.)

White Fragility: Why It’s So Hard for White People to Talk About Racism by Robin DiAngelo
In this “vital, necessary, and beautiful book” (Michael Eric Dyson), antiracist educator Robin DiAngelo deftly illuminates the phenomenon of white fragility and “allows us to understand racism as a practice not restricted to ‘bad people’ (Claudia Rankine). Referring to the defensive moves that white people make when challenged racially, white fragility is characterized by emotions such as anger, fear, and guilt, and by behaviors including argumentation and silence. (You can order the book here.)

Beyond the Hashtag: How to Take Anti-Racist Action in Your Life by Zyahna Bryant
In this op-ed for Teen Vogue, Zyahna Bryant — a Charlottesville-based activist, organizer, and social impact strategist — offers insight into how people can take anti-racist action.


(Please consider ordering books from black-owned independent bookstores.)

Dear Martin by Nic Stone
Dear Martin tells the story of an Ivy League-bound African American student named Justyce who becomes a victim of racial profiling. Justyce confronts injustices and micro-aggressions he experiences at his mostly white prep school and the fallout from a brief detainment. Parents should be prepared to talk about current events, the Black Lives Matter movement, underage drinking, and stereotypes. (You can order the book here.)
Fiction, Age 13+

The Hate U Give by Angie Thomas
Winner of a 2018 Coretta Scott King Author Honor, a Michael L. Printz Honor, and the Odyssey Award for best audiobook for kids and teens. Inspired by the Black Lives Matter movement, it involves the police shooting of an unarmed black teen. The book covers topics of race, interracial dating, political activism, grief, friendship, wealth disparity, police brutality, addiction, and the media’s depiction of African Americans. Parents should be prepared to discuss recent and past instances of police shootings, how they were covered in the media, dealing with grief, and possible reactions to the trauma revealed in the book. This book was also made into a PG-13 movie of the same name and is available to rent. (You can order the book here.)
Fiction, Age 13+

A Kids Book About Racism by Jelani Memory
This book provides a clear explanation of what racism is and how to know when you see it. It’s never too early to start this important conversation. (You can pre-order the book here for its July 2020 release.)
Age 5+


These films and shows creatively dive into racism, past and present.

13th by Ava Duvernay
Documentary film, available on Netflix
In this 2016 thought-provoking documentary, scholars, activists and politicians analyze the criminalization of African Americans and the U.S. prison boom.

Dear White People by Justin Simien
TV series, 3 seasons available on Netflix
Students of color navigate the daily slights and slippery politics of life at an Ivy League college that’s not nearly as “post-racial” as it thinks.

If Beale Street Could Talk by Barry Jenkins
Rated R, available on Hulu
Based on the novel by James Baldwin, If Beale Street Could Talk is a drama about a young couple fighting for justice in the name of love and the promise of the American dream.

I am Not Your Negro by Raoul Peck
Documentary, available to rent on multiple platforms
In 1979, author James Baldwin wrote a letter to his literary agent describing how his next book would be a revolutionary, personal account of the lives and assassinations of three of his close friends: Medgar Evers, Malcolm X and Martin Luther King, Jr. At the time of Baldwin’s death in 1987, he left behind only 30 completed pages. Filmmaker Raoul Peck envisions the book he never finished in this 2016 documentary.



Through their directory, guides, and events, it is easy to find and support local businesses and the diverse people behind them through everyday decisions about where we eat, drink, and shop.

Your donations will assist them in doing the meaningful and impactful work that must follow the protests.

NAACP Legal Defense and Educational Fund
America’s premier legal organization fighting for racial justice. Through litigation, advocacy, and public education, LDF seeks structural changes to expand democracy, eliminate disparities, and achieve racial justice in a society that fulfills the promise of equality for all Americans. LDF also defends the gains and protections won over the past 75 years of civil rights struggle and works to improve the quality and diversity of judicial and executive appointments.

Black Lives Matter
Join the Movement to fight for Freedom, Liberation and Justice by signing up for updates, supporting our work, checking out our resources, following us on social media, or wearing our dope, official gear.

The Southern Poverty Law Center
SPLC is dedicated to fighting hate and bigotry and to seeking justice for the most vulnerable members of our society. Using litigation, education, and other forms of advocacy, the SPLC works toward the day when the ideals of equal justice and equal opportunity will be a reality.

Campaign Zero
It will take deliberate action by policymakers at every level of government to end police violence. Funds donated to Campaign Zero support the analysis of policing practices across the country, research to identify effective solutions to end police violence, technical assistance to organizers leading police accountability campaigns and the development of model legislation and advocacy to end police violence nationwide.

by David Cole

Soothsaying is a tricky business, especially from the midst of a global crisis where new information emerges almost daily. Only with hindsight can our predictions be validated: Get it right and you’re a prophet, get it wrong and you’re a punch line. The COVID-19 crisis has already brought forth prognostications concerning the future of architecture and design. We’ve seen various hot takes proclaiming the end of cities, the end of suburbs, the end of the office, and the end of bars and restaurants as a result of the pandemic. To be sure, the pandemic has greatly disrupted our lives and will continue to do so for the foreseeable future, and we can’t overlook the pain caused by those disruptions, particularly the pain felt by the most vulnerable communities.

A healthy dose of skepticism is in order whenever somebody claims to divine what the future will bring. People have been drawn to cities and gatherings for thousands of years despite countless pandemics, and it’s unlikely that will change anytime soon. We’re social animals by nature, and there will always be a demand for places where we can come together to eat, drink, socialize, be entertained, and collaborate. That said, there will likely be changes. This isn’t humanity’s first rodeo when it comes to pandemics, and it’s worth taking a look to the past to see how society has adapted under similar circumstances.

Photo: New York City’s Central Park, by David Cole

In the mid-1800s, waves of cholera were sweeping major American cities. Frederic Law Olmstead, under the belief the disease was airborne, designed New York’s Central Park to be “the lungs of the city.” Although the modern understanding of cholera as a waterborne disease had emerged by the 1850s, the health benefits provided by access to nature have long been understood by architects and designers at an intuitive level, and a growing body of research has begun to provide quantitative data to back up our intuition. We could argue Olmsted was a leading proponent of biophilic design before the term had been coined.

With the 20th Century came pandemics of tuberculosis and influenza, most notably the Spanish Flu pandemic of 1918-1920. Compounded by the ravages of the First World War, this led to a new emphasis on cleanliness in design, exemplified by early modernists such as Le Corbusier, who prioritized bringing sunlight and ample air circulation into their buildings. Corbu’s concepts for urban housing – large high-rises with ample balconies set within a park-like landscape – greatly influenced the design of public housing for a generation. In retrospect we now recognize the serious shortcomings of this approach in terms of damage to neighborhoods and streetscapes, but on a smaller scale, many of the innovations from that era remain with us today: large windows, ample balconies, and interior surfaces that are easily cleaned. Nearly every home built from the 1920s through the 1950s made extensive use of tile throughout the kitchen and bath areas for easy cleaning.

Over time, though, as memories of pandemics faded from our collective consciousness and construction budgets became more austere, many of these features came to be seen as frivolous luxuries. Balconies in multifamily projects have largely been eliminated in favor of communal rooftop spaces. Tile surfaces have been reduced to a bare minimum or replaced altogether with cheaper resilient products. Stricter energy codes have reduced the amount of allowable glazing area, and our reliance on mechanical systems has all but eliminated operable windows in nonresidential buildings.

Rendering: Views to nature at Northwest Kidney Center’s Rainier Beach Clinic

What might the future of design hold in the post-COVID era? The aforementioned caveats about prognostication still apply, but it seems plausible that some of the innovations from a century ago will come back into vogue. Impervious, easily cleanable finishes have been mainstays of healthcare design since the days of sanitariums, and such strategies may again find their way into other building typologies. With our work for Northwest Kidney Centers, we’ve already been exploring the healing properties of nature and strengthening the connections between indoor and outdoor space; these concepts are likely to become more widely adopted. In the age of social distancing, expect to see more discussion about finding the balance between individual space and communal space. Although it’s unlikely that telecommuting will entirely replace the workplace – collaboration is still best accomplished in person, and we’re quickly discovering the limits of Zoom-based meetings – we can expect to see remote work become a major factor in office design.

Nobody can predict with certainty what the future will bring, but the COVID-19 crisis will undoubtedly change the way the built environment is designed. As architects and designers, we have the responsibility to shape that future in ways that protect the health, safety and welfare of our communities and the world at large. Going forward, that responsibility now includes re-learning the lessons from past pandemics.


Mahlum is thrilled to announce the AIA has recognized the talents of two of our own.

JoAnn Hindmarsh Wilcox AIA, LEED AP is one of 22 nationwide recipients to be recognized with the 2020 AIA Young Architect Award. This award is given to individuals who have demonstrated exceptional leadership and made significant contributions to the architecture profession early in their careers. Learn more about JoAnn’s accomplishments here.

Stacey Crumbaker Assoc. AIA, IIDA is one of five nationwide recipients to be recognized with the 2020 AIA Associates Award. This award is given to outstanding leaders and creative thinkers for their significant contributions to their communities and the architecture profession. Learn more about Stacey’s accomplishments here.


by Anne Schopf

As an architecture, design and planning firm, we work interactively with our clients to produce environments which support their vision, searching for solutions which reflect our client’s values, responsive to needs of their occupants, their community, and the environment.

Mahlum Community Space

Faced with the task of designing our new Portland Office, we began the process as we do with many of our clients by asking ourselves a question, “Are we willing to walk the talk and fully embrace our commitment to creating healthy and sustainable communities?” The answer was an adamant yes. We know that if we are asking our clients to consider using the Living Building Challenge (LBC) as a framework for responsible design, we needed to demonstrate our own commitment and consider using it ourselves.

The purpose of the LBC is to transform the way buildings are both designed and constructed. In the words of the International Living Future Institute, LBC is “the world’s most rigorous proven performance standard for buildings.” We took on the challenge to produce a design for our office that was truly regenerative, going well beyond baseline code-compliant architecture.

As a tenant improvement project, Mahlum is specifically pursuing LBC Materials Petal Certification. The team was challenged to design, specify and build with a materials palette that is non-toxic, ecologically restorative, fully transparent, and socially equitable. The materials market has positively transformed since the inception of LBC in 2006, but much work remains for the design community and manufacturers to fully embrace transparency and agree on tools that assess the full impact of our choices. Given the realities of the current construction industry and the traditional design process, it is widely acknowledged that the Materials Petal is the most difficult LBC pathway to achieve (compared to Net Positive Energy or Water Petals). In that spirit, our LBC project has become a platform for market advocacy and mindfulness; we challenged our own typical material assumptions and we asked manufacturers to fully disclose both material content and chain of custody.

The result is that our new 7,431 SF office space serves over 50 staff in an equitable and non-toxic environment, flexible to support different working styles and project types. Individual team spaces allow for projects to “live” indefinitely so that ideation is on display to spark inspiration, collaboration and celebration of the work. Large, medium, and small conference areas support focused meetings, digital networking and cross-office collaboration. The signature space is the community room, an open flex space with a gracious open plan kitchen. This space has been envisioned as a truly community-based resource to support anything and everything our staff and clients can dream up. Additionally, the project supports principles of universal design from the front door to the lactation/wellness room. Open spaces, clear sightlines and controllability for daylight will support the diversity of needs in our staff.

We are happy to be in our new home, located in the Central Eastside at 1380 SE 9th Avenue, and we welcome you to visit anytime you are in the neighborhood.


by Emily Everett and Joseph Mayo

When students and staff enter the new Kellogg Middle School, they will be greeted by an abundance of natural, carbon sequestering material: dowel-laminated timber panels (DLT) and ribs of glued-laminated timber beams (GLT). Not only is the roof/ceiling of the building’s entry, dining commons, and library a warm and beautiful material, it also readily absorbs noise and is a vital component to creating excellent acoustics within the school’s largest spaces. While DLT has been gaining popularity, Kellogg represents the nation’s first acoustic DLT system installation, utilizing the wood panels for structure, finish, and acoustical control all at the same time.

DLT is an all-wood product, made up of 2x softwood lumber stacked together and laminated with hardwood dowels to create massive structural panels that can be used for floors and roofs. The use of hardwood dowels to bind the panels into a tight structural unit virtually eliminates the need for any adhesives, resulting in DLT panels which are essentially 100% wood and have zero potential to off-gas any harmful volatile organic compounds (VOCs) into the school environment. This healthy choice contributes to positive indoor air quality where the main scent is natural pine, a positive feature for ensuring the health of the student population.

Acoustic DLT is also unique because sound absorbing fiber insulation is added to the panels. This is accomplished by using CNC tools at the factory to rout out thin channels between the laminations where acoustic insulation is inserted into the cavities. This unique process can be used to achieve noise absorption as high as a 0.7 NRC value. At Kellogg, the acoustic profile was utilized to showcase the wood structure without the need of an additional acoustic ceiling, like acoustic ceiling tile, typical in standard construction.

The largest DLT panels used at Kellogg are nearly forty feet long by six and a half feet wide. The panels were prefabricated and efficiently flat-packed to the construction site where they were erected in just two weeks’ time. A small gap was left between the panels to provide an integrated space for electrical, lighting and other systems. To further quicken the pace of construction, Zip System sheathing was used on top of the DLT panels as a diaphragm to transfer shear forces through the roof system. Because the sheathing has an integrated water-resistive and air barrier pre-applied at the factory, this allowed the building to be dried-in quickly and efficiently, thereby minimizing the chance of moisture exposure to the wood structure and finish.

In addition to the acoustic, structural, and material health properties of DLT, the material also sequesters large amounts of carbon. Traditional construction materials like steel and concrete emit large quantities of climate altering greenhouse gases into the atmosphere during their production. The use of DLT instead sequesters more carbon than it emits in the manufacturing process and consequently it can be used as an effective carbon store for long periods of time. By transitioning from carbon emitting to carbon sequestering materials, buildings can play a key role in fighting global climate change.

The DLT used at Kellogg has sequestered an estimated 75,000 kg of CO2. In addition, the GLT beams supporting the DLT have sequestered an estimated 214,000 kg of CO2. The total carbon sequestered in Kellogg’s wood structure is equivalent to the CO2 emissions from 32,500 gallons of gasoline.

Mahlum’s use of this new technology was made possible because of the following partnerships:
Owner: Shoreline Public Schools
Engineer of Record: Coughlin Porter Lundeen 
General Contractor: Hoffman Construction 
DLT Manufacturer/Supplier: StructureCraft 
Installer(s): Mustang Ridge Construction and McClean Iron Works

On September 20, 2019 Mahlum staff in Portland and Seattle took part in the School Strike for Climate in support of over 4 million students and adults across the world demanding immediate and transformative climate action. While wet weather in Portland threatened to dampen the crowd, both cities saw record numbers of climate strikers contributing to the worldwide demand for immediate action. Students of all ages challenged adults to recognize the urgent climate crisis and act now to ensure that they have a just and livable future on this planet. Speeches and protest signs clearly communicated the fear and anger this generation harbors, unsure what their lives will be like after the year 2050. There was also optimism that the collective strength of our next generations can lead this change.

So how are we, as adults, professionals and government leaders going to respond? Estimates show that to meet our drawdown targets and avoid a global warming tipping point, we need to more aggressively reduce our carbon emissions in all aspects of our economy and we understand that the building industry is responsible for 30-50% of the annual greenhouse gas emissions on planet earth. This means that architectural practices worldwide have a huge opportunity to positively impact the direction of this crisis. It is our responsibility to leverage the technology and systems that already exist to bring our carbon footprint to zero by 2030 or sooner.

Thank you to all the brave and inspiring youth who are coming forward to demand action to sustain a just and livable planet. It’s our opportunity to listen to the next generation and ACT NOW.

To learn more about the local impact to Washington State, see No Time to Waste, the Intergovernmental Panel on Climate Change (IPCC) Special Report on Global Warming of 1.5ºC and Implications for Washington State.

To learn more about the local impact to Oregon, the Oregon Climate Change Research Institute has published its Fourth Oregon Climate Assessment Report.

by Anne Schopf

“Our house is on fire — let’s act like it.” 
– Greta Thunberg

Mahlum Architects will join Greta Thunberg in a “Skolstrejk för klimatet” (“School Strike for the Climate”), a Global Climate Strike demanding an end to the age of fossil fuels. On September 20, millions of us will walk out of our workplaces, schools, and homes to join Thunberg and other student activists across the world who are demanding immediate action in addressing the Climate Crisis.

With offices in both Seattle and Portland, Mahlum will support our staff in joining the marches to City Hall in each of our cities. There are multiple events throughout the day in cities across the world. More information and the full listing of activities can be found here:

We encourage you to join us in this simple yet powerful way to put pressure on our elected officials to approve new legislation that moves us closer to a carbon free economy.

Architects throughout the country are recognizing the impact the building industry has on climate. On Sept. 5, 2019, The American Institute of Architects’ (AIA) Board of Directors approved a landmark resolution, championed by AIA members, that defines immediate and long-term efforts to engage the architectural profession in the fight against climate change. The approved resolution sets into motion a prioritization of, and immediate support for, urgent climate action to exponentially accelerate the “decarbonization” of buildings.

“This is a defining moment for the Institute,” said 2019 AIA President Bill Bates, FAIA. “We are making this our top priority in order to address the crisis our communities face. Moving the needle on this critical issue—that threatens the future of our planet and humanity—requires our firm commitment to achieving carbon neutral goals in the built environment and our immediate action. It’s imperative that the industry acts today.”

Mahlum invites you to Stand With Us on September 20th for urgent Climate Action.

by Jeff Sandler

Since its inception in 2011, the Seattle Design Festival (SDF) has given the local community an opportunity to celebrate our rich design landscape and provide a venue for Seattleites, visitors, businesses, and designers to engage in dialogue with one another about how design impacts our lives and our city. Each year, the festival selects a theme for designers to respond to, and this year it’s all about Balance.

The design festival is an opportunity for us to roll up our sleeves and have fun creating a project to be enjoyed by the community at large. It also gives us the opportunity to collaborate with our consultants and builders in a different atmosphere from our daily work and our usual interactions. This year we are fortunate to have Aldrich + Associates, who we are currently working with on the construction of several medical facilities, assisting us in making our installation become a reality. And from the work we’ve done so far, I think it’s clear that they’re having as much fun as we are.

Every year, we kick off our design process with an all-office ideas charrette. To get the office thinking about balance, we took over the pin-up space in our main conference room and posted definitions, etymologies, associations, and anything else we could find related to the idea of balance. From here, we facilitated an exercise where everyone wrote or drew their ideas, split into small groups to discuss, and then shared back to the entire office. Much of what we discussed centered on the concept of movement or the passage of time and eroding boundaries. After that a smaller group of us met weekly and arrived at the following list of goals:

The installation should be fun!
The design should feel light and airy.
We should utilize recyclable materials or embrace the idea of non-permanence.
It should broadcast an individual’s interaction to the community.

Merging our recurring ideas of time and eroding boundaries with our list of goals, we arrived at an irregular form, comprised of a repeated and reusable element that had a softened boundary, allowing visitors to choose their level of interaction while providing an engaging experience for people of all abilities. The arrangement of repeating elements and overall form have been tweaked and tuned using parametric design tools in the office. We chose fiberglass poles, used for agility training and running exercises, as our repeating vertical element, with the idea that they will be donated to local health programs or park districts–giving them life after the short installation.

We are currently in construction to prefabricate the installation for an easy assembly during the weekend of the festival. We’re using full-scale mock-ups to test our details, spacing, and final materials with Aldrich, and every day we are getting more excited to share the finished project with you!

If you are interested in seeing how our project (and some 60 others from various Seattle-based designers and offices) turns out, come join us at the Seattle Design Festival Block Party, August 24-25 at Lake Union Park.