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PMAPDX 2015 Year in Review

HAPPY HOLIDAYS!!

PMAPDX-Holiday-2015

Wishing you a holiday season filled with cheer and delight from Peter Meijer Architect.

As we look back over the past year and reflect on our completed, on-going, and upcoming projects, we’d like to take the opportunity to say we have truly enjoyed collaborating and communicating with you.

2015 PROJECT HIGHLIGHTS
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PMA HAPPENINGS
Peter Meijer AIA, NCARB, was a Presenter at the RCI, Inc. 2015 Symposium on Building Envelope Technology. He presented on, When Field Performance of Masonry Does Not Correlate with Lab Test Results. PPS Grant High School was the case study presented.

Kristen Minor, Preservation Planner, is the newest member of the City of Portland Historic Landmarks Commission.

When Field Performance of Masonry Does Not Correlate with Lab Results

First presented at RCI 2015 Symposium on Building Envelope Technology, Nashville, TN

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Background
When it was completed, Grant High School was typical of the high schools constructed by Portland Public Schools in the pre-World War II era. In addition to being an extensible school, including educational buildings constructed between 1923 and 1970, the school was also reflective of fire-proof construction through its use of a reinforced concrete structure with brick in-fill. (Portland Public Schools, Historic Building Assessment, Entrix, October 2009)

Over the last fifteen years, Portland Public Schools (PPS) noted an accelerated degree of masonry face spalling on the original 1923 main building and 1923 Old Gym particularly when adjacent to concentrated sources of surface water. Other areas of spalling were not as obvious including protected wall surfaces. The masonry spalling was not occurring on later additions including the north wing (circa 1925), south wing (circa 1927), and auditorium building (circa 1927). Upon closer visual examination, it was observed that individual units were failing in isolated protected areas of the wall surface. Failures in such areas could not be accounted for under direct correlation of heavy water intrusion and typical failure mechanisms.

The failure of the brick was potentially due to a number of separate or cumulative conditions including 1) excessive water uptake by the brick; 2) sub-fluorescence expansion of salts in the masonry, 3) freeze thaw; 4) low quality of the original 1923 brick; and 5) the application of surface sealers preventing water migrating to the exterior surface.

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Field Investigation
In order to determine if the damage to the masonry was deeper than the surface, several wall-lets, an invasive exterior wall opening, were performed confirming the assembly of a multi-wythe masonry wall constructed in a typical fully bedded bond course with interlocking headers and no cavities between the first three brick courses. Hooked shaped, 3/32” gage, steel wire masonry ties in alternating courses and approximately twelve inches (12”) on center ties were found to be in good condition with no deterioration. The absence of corrosion on the in place brick wire ties indicated that little moisture was present inside the multi-wythe wall.

As a result of the hypothesis and field observations, it was prudent to conduct a series of lab tests to the brick, mortar, and patch materials to assist in the determination of 1) the quality of the brick; 2) the physical composition of the brick; 3) the quantity of naturally occurring compounds in the masonry and mortar, particularly salts in the masonry; and 4) the quality of the mortar. The findings would help narrow the potential cause of the spalling and lead to a more focused repair and maintenance process. Bricks were removed for testing of Initial Rate of Absorption (IRA – a test for susceptibility to water saturation) freeze thaw testing, and petrographic analysis, a way to determine the inherent properties of the clay and manufacturing process. Both pointing and bedding mortar samples, as well as, the previous patching material were removed and also tested. To rule out damage caused by maintenance procedures, faces of the brick material were sent to determine if sealants were used on the brick and, if present, determine the sealant chemical makeup. The presence of a surface coating may lead to retention of water within the brick and thus prevent natural capillary flow, natural drying, and water evaporation.

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Testing & Results
Samples sent to the lab for coating assessment were analyzed via episcopic light microscopy, and Fourier- Transform Infrared Spectroscopy (FTIR) per ASTM D1245 and ASTM E1252. The results found no hydrocarbon or organic formulations used on the surface of the brick refuting the hypothesis of a surface sealer.

Following modified ASTM standards, a 24-hr immersion and 5-hr boil absorption test on the brick were performed. The brick have a very low percent of total absorption at 9.5% for the 5-hr boil and 7.5% for the 24-hr test. The maximum saturation coefficient is 0.79 which is 0.01 over the maximum requirements for Severe Weathering bricks recommended for Portland climate (ASTM C216-07a Table 1). The Initial Rate of Absorption (IRA) is 5.7g/min/30in2 which equates to a very low suction brick or brick with low initial rates of absorption. The freeze thaw durability tests resulted in passing performance. All of these tests refuted the hypothesis that freezing temperatures were the cause of masonry spalling.

A brick material analysis was performed in general conformance with ASTM C856, ASTM C1324 (masonry mortar) and included petrographic analysis, chemical analyses, x-ray diffraction and thermogravimetric analysis. Samples were analyzed under a polarized light microscope for information such as materials ratio and presence or absence of different deterioration mechanisms. These tests were used to assess the overall quality of material, presence of inherent salts, excessive retempering, cracking, ettringite formation, and potential alkali‐silica reactivity.

grant-hs-electron-microscopy-salt-deposition

The Petrographic Characterization resulted in the most unusual findings and the most relevant results related to the observed failures. The polarized light microscope indicated carbonate based salt crystals seeping into the masonry from the mortar. No sulfate based salts, typically associated with the clays used for making brick, were present. Furthermore the inherent properties of the brick showed very small rounded voids and interconnected planer voids. Planner voids result from poor compaction during the raw clay extrusion process prior to firing.

Performance of brick in the field is a result of both material properties and resistance to micro-climates within the brick’s capillary void structure which cannot be repeated in the lab. Studies have shown a connection between small voids in the material property and susceptibility to longer water retention near the surface. With natural absorption properties, the brick is taking in a small quantity of water in very small pores. 24-hour immersion results are very low (7.5%). Publication of more in-depth studies correlates maximum saturation values for brick with low 24-hour immersion values. The effect of low immersion values and small quantities of absorbed water may increase the susceptibility in brick with small pore structure to freeze thaw failure.

The presence of salt migration out of the mortar and into the brick, plus small pore structure and low immersion values, combining with a cleavage plane resulting from manufacturing are contributing to the Grant High School brick spalls. Brick with smaller pores are less capable of absorbing the expansive forces of freezing water and drying salts. Interlaced pores creating linear plains parallel with the face of the brick create stress failure points resulting in surface spalling. Since the characteristics of the brick resulted from the firing and manufacturing process, the brick will remain susceptible to the failure mechanisms.

Conclusion
Field observations of masonry failures generally correspond with known failure mechanisms. However, it is not unusual that further analysis is necessary to confirm in-field performance and that typical laboratory test results are in conflict with in-situ performance.

The best corrective action is to minimize the amount of surface water and proper mortar joints and mortar composition. Additional spalls are likely to occur in the future due to the accumulation of expansive forces over a long period of time. Replacement of the spalled bricks is recommended over further patching. Leaving spalled brick in place will continue to worsen the condition over time and affect adjacent brick.

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Written by Peter Meijer, AIA, NCARB, Principal

Navigating the Historic Tax Credit Application

Historic Tax Credits were founded in partnership with the National Park Service (NPS) and the Internal Revenue Service (IRS) in 1986. As one of a number of incentives to help owners preserve historic properties, Historic Tax Credits have since become the premier financial incentive towards the rehabilitation of income-producing historic properties. Historic Tax Credits can be used for older, non-historic properties as well, so long as they are income-producing, at a lower credit amount. An owner can receive a 20% rehabilitation tax credit for the amount spent on the qualifying rehabilitation of a National Register-listed property, or 10% tax credit for the amount spent on the qualifying rehabilitation of an older property with no historic status.

There is a minimum threshold of rehabilitation investment that must be met in order to qualify. Rehabilitation project costs must be equal to the Real Market Value (as assessed by the local tax authority) minus the value of the land or $5000, whichever is greater. Rehabilitation Tax Credits for tax-exempt historic properties are possible provided that the investment partner using the tax credits is a for profit, tax paying entity. Typically, separate Limited Liability Corporations are established through which rehabilitation funding flows to the project.
Pacific-Tower-Tax-Credits20% Rehabilitation Tax Credit
The most common use of historic tax credits is the 20% Rehabilitation Tax Credit. To qualify for the 20% historic tax credit a property must be listed on the National Register of Historic Places either individually or as a contributing resource within a historic district. Properties must be a building as defined by Treasury Regulation 1.48-1(e), income producing, and undergo a certified rehabilitation process, which is evaluated by the NPS and the State Historic Preservation Office (SHPO). This process includes the completion of a three part application: Part 1-Evauation of Significance (not typically necessary if the building is already on the National Register); Part 2-Description of Rehabilitation; and Part 3-Request for Certification of Completed Work. Once completed and approved by the NPS the 20% tax credit can be claimed for the tax year in which the property was certified by the NPS. Tax credits can be taken in phases as well, as long as each phase meets certain conditions.

10% Rehabilitation Tax Credit
To qualify for the 10% rehabilitation tax credit a property must have been built before 1936. Properties eligible for the 10% tax credit must be buildings, income producing, non-residential, and remain on the original site. Historic properties that have been relocated do not qualify. Other conditions include the retention of at least 50% of the external walls, at least 75% of internal and external walls, and at least 75% of the internal framework. Unlike the application process for the 20% Historic Tax Credit, there is no formal review process or certification. However, the tax credits are redeemed the same way. Buildings listed individually or contributing resources within a Historic District on the National Register of Historic Places are not eligible for the 10% tax credit.

Current Trends
The staff at PMA have years of experience navigating the Historic Tax Credit application, placing properties on the National Register of Historic Places, and working with the State Historic Preservation Office and the National Park Service to assure the rehabilitation project qualifies and receives historic tax credits.
US-Custom-House-Tax-Credit
From initial application of Part I through final certification of Part III, 180 days or more can elapse. Current development practices and financial investment processes place pressure on the development schedule to initiate rehabilitation prior to final approval by the National Park Service. Early construction places the tax credit under risk and final approval can be withheld pending review of all rehabilitation impacts. Market demand for open space with exposed mechanical, electrical, and plumbing systems is creating a trend in rehabilitation of historic properties to expose these functional systems.

PMA’s experience in working with the market demand and reaction to the trend by SHPO and NPS, can provide owners with advice on where reviewers will be more stringent. PMA has worked with NPS when a Condition of Approval was placed on the submitted Part 2 Description of Rehabilitation requesting alteration of completed ceiling conditions throughout the building in occupied space. Although the owner did know that construction prior to approval was a risk, they also needed to have some spaces complete in order to retain certain tenants and meet the financial loan terms. PMA sought a compromise with NPS retaining completed ceilings, but altering the design intent and finish in those spaces not yet complete in order to meet the new Condition of Approval.
usch_Ground Floor_Northeast Room (Viewing Northwest)
Similarly, PMA has noted in the Part II application process an acceptance of exposed fire sprinkler lines and exposed conduits but resistance to exposed ductwork and exposed cable trays. Whereas it could be argued that exposed mechanical and wiring systems are akin to exposed electrical systems in that the exposed work does not have a long-term impact on the historic walls, floors, and ceilings, the combined affect changes the subjective visual impact from NPS perspective.

Each of the above trends requires diligent documentation and on-going discussion during the construction process, which, in itself, can be very fluid and entail rapid changes. The tax credit consultant must be skilled in communication and work with both the development team and tax credit reviewers.

PMA Technical Assistance
PMA is proud to undertake historic tax credit commissions as these projects have been a great way for our office to combine our specializations in architecture and preservation. Over the last five years, PMA has completed numerous Historic Tax Credit applications throughout Oregon and Washington. Overall, Historic Tax Credits have proven to be vital to the financial proforma and successful investment strategy to preserve and rehabilitate historic properties.
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Written by Peter Meijer AIA, NCARB, Principal / Kristen Minor, Preservation Planner / Brandon Grilc, Preservation Specialist

Assessing Union Station to be Part of Our Future

Portland’s Union Station is the only major railroad station built in Oregon, and one of the oldest major extant passenger terminals on the West Coast. From its inception, Union Station has functioned as a major transportation link to Portland and the west coast, with a continued vital role to play in future rail and multimodal transportation planning.
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A Sense of Place
Critical to adapting Union Station, and other historic structures, for current and future use is to thoroughly understand key elements and components that convey the sense of place and rich history of the structure. A deeper understanding enables informed decisions to be made about the potential of key characteristics to remain for future generations. Union Station was constructed between 1892 and 1894 and was designed by Van Brunt & Howe architects in the Queen Anne style with Romanesque detail. From 1927 thru 1930, the Main Concourse was modernized by Portland’s internationally known architect, Pietro Belluschi, to reflect the streamline era of rail technology. Like the original 1892 elements, the Belluschi modernization’s are equally important stories to tell.

Creating a graphic document annotating “changes over time” is an essential tool for evaluating how Union Station has adapted to improvements in rail technology, fluctuations in passenger volume, cultural shifts regarding train travel, as well as modifications to specific architectural elements that impact the historic integrity and interpretation of original design intent.
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Methodology for Assessment
Our method of developing the graphic drawing is to compare historic floor plans and historic photographs to current plans and images through a process of layering plans from different eras over one another and drawing the altered, or missing, elements (e.g. walls, furniture, spaces, etc.) in different colors. This methodology provides an easily interpreted floor plan. The use of color enhances the image and creates a visual record of both changes and original historic fabric. In reading the graphic drawing, it becomes readily discernible that changes include: wood floors replaced with concrete and new floors added; openings in the main concourse were moved and enlarged; the women’s waiting room and toilet were removed to widen the south hall, the stairs were renovated, and a new baggage counter was constructed. The covered concourse was glassed in and a section was made into the First Class Lounge, which remains today. And in the 1940s, a nursery, or crying, room was added.
Union-Station-PMAPDX-drawing
What is fascinating about the history of a building like Union Station, is that the rail lines and street patterns are also integrated with the function and use of the structure and have changed over time as well. The construction of Union Station came soon after Portland was fully connected by rail in 1883 to California, Montana, and rail lines running to the East Coast across the U.S. The Spokane-Portland-Seattle rail connection was finished in 1908. In 1922, Union Station became accessible to all major passenger railroads operating through Portland.

When originally constructed, six passenger car rail lines approached the rear of Union Station. The waiting platform consisted of planks on dirt with no canopy. The block across from Union Station consisted of a small restaurant, bar, other stores, and stables. A five foot iron fence bordered a large lawn and sidewalk to the south and west of the station. The High Shed, a large two-story metal shed was the first canopy built to cover the passenger platforms and extended perpendicular to the station. Under this High Shed, two smaller scale platform canopies were erected paralleling the tracks. A mail canopy was built at the north end of the building in 1915.

By 1920, the block across from Union Station’s main entrance had been converted to parking to relieve congestion. As automobile use increased throughout the city, parking configurations were constantly changing over the years. By 1923, an elevated walkway was built to connect the Broadway Bridge to the main entrance.
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With the introduction of larger diesel locomotives and potential for high speed rail along the northwest corridor, the track, platforms, and canopies have had to be modified. Safety and accessibility have also driven the need for changes and modernization. Documenting these alterations with graphics, provides a foundation from which to advocate for further refinement while recognizing historic precedent and protection of historic elements.

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Written by Peter Meijer, AIA,NCARB, Principal

PMA is part of the DOWA-IBI Group team for this exciting PDC Union Station Renovation Project.

Ballpark Preservation and Its Most Recent Event

civic-stadium-eugene-prefireSince its creation in 1862, the ballpark has continued to have an influential impact on those who experience it. This impact is not only measured by heritage tourism to these sites, like Fenway Park or Wrigley Field, but also by how they are preserved. In some cases, such as Fenway Park, which is listed on the National Register of Historic Places, ballparks are preserved in a very traditional sense of the word. However, most ballparks never have the opportunity to reach the benchmarks needed to be preserved according to these preservation standards and are therefore preserved through a variety of alternative preservation methods. These methods, which span the spectrum from preserving a ballpark through the presentation of their original objects in a museum to the preservation of existing relics in their original location, such as Tiger Stadium’s center field flag pole, have given a large segment of our society an opportunity to continue their emotional discourse with this architectural form. Yet, the results of these preservation methods are commonly only the conclusion to a greater act of ceremony and community involvement that preludes them.

civic-stadium-eugene-prefire-002Part of this ceremony and community involvement is the simple act of participating in the ritual that is the game itself. Most often this is conducted through observation, as society, architecture, and sport become one for nine innings. However, other documented examples of ceremony and community involvement that express the level of compassion our society has for ballparks include ritualistic acts, such as the digging up and transferring of home plate. In some cases, this ritual has included the transferring of home plate via helicopter, limousines, or police escort. Ceremonies like this have also included, for better or worse, the salvaging of dirt, sod, and other relics from a ballpark to be, either cherished as a memento or repurposed in new stadiums. Nevertheless, these examples of ceremony only scratch the surface of the depth that is our society’s infatuation with sport and its architecture, more specifically the ballpark.

civic-stadium-eugene-postfireCeremonial Acts & Community Involvement Efforts
Some of the most recent ceremonial acts and community involvement efforts that help to further this commitment to ballparks are the acts executed by the Friends of Civic Stadium in Eugene, Oregon. Founded in 2009, the Friends of Civic Stadium have dedicated countless hours towards preserving one of our country’s last wooden ballparks. These efforts include years of community activism, documentation, fundraising, and grounds keeping. Collectively, these efforts resulted in the prolonged life of the 77-year-old ballpark, as they fought off national corporate efforts to purchase and demolish the stadium. But, in an ironic twist of fate, all of the hard work, collaboration, and time spent on preserving a single ballpark came to an abrupt halt on June 29, 2015 when Civic Stadium caught fire and burned down in a matter of hours. Left with only charred remains and a distraught community, the Friends of Civic Stadium moved on in the only way they knew how, through ceremony.

civic-stadium-eugene-postfire-003Led by the Friends of Civic Stadium president, Dennis Hebert, the organization held a wake in honor of their lost historic building. The wake, intimate in size, resembled a jazz funeral with a procession to the remains of the ballpark led by the One More Time Marching Band. Once at the site of the ballpark, there were multiple ritualistic acts that mimicked traditional funeral ceremonies. These acts included a moment of silence, a passionate speech by Dennis Hebert, and the always haunting rendition of Amazing Grace on bagpipes. After the ceremony, the Friends of Civic Stadium and the friends of Friends of Civic Stadium proceeded back to Tsunami Books where they continued to express their condolences and fond memories of the lost historic ballpark.

Overall, this ceremony is just another example of the power that place and architecture have in our society. Like a living form, architecture, and more notably the ballpark, is preserved and mourned for like a family relative. Yet, when you expand the definition of family relative, the ballpark seamlessly fits in, and that is exactly why we preserve them.

Friends of Civic Stadium
For further information about the Friends of Civic Stadium please visit their website. They are currently collaborating with the Eugene Civic Alliance, the current owners of Civic Stadium and its property, in preserving the historical and cultural significance of Civic Stadium through alternative forms of preservation given its unfortunate fate.

Written by Brandon J. Grilc, Preservation Specialist

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How to Improve Energy Efficiency in Historic Buildings

As historic architects we find window replacement projects to be particularly challenging — removing original materials from a structure can fundamentally change the design aesthetic. Our built environment must evolve to support more sustainable living, but finding the best way to achieve this goal for historic structures, while minimizing any aesthetic impacts, is an ongoing challenge.

When looking to improve energy performance the first inclination is often to replace the component with the lowest thermal resistance – the windows. Single pane historic windows provide minimal thermal resistance and contribute to heat loss through the building envelope. But is window replacement really the best option for reducing the carbon footprint of a historic building – how does it compare to other strategies?

energy-analysis-West ElevationPMA recently performed an energy analysis study to answer that question. The project was to provide quantitative data on the energy savings associated with window replacement versus insulating exterior walls. We choose to study a structure on the brink of historic status – a 1960’s multi-story residential structure with large character defining view windows. The structure is composed of concrete walls, beams, floors, and columns with single pane aluminum windows. The existing building has approximately 36% glazing and no insulation.

The analysis we performed compared seven retrofit strategies ranging from minimal code compliance to super insulated walls and windows. Details on the specific constructions, r-values, and glazing properties are outlined below.

Construction Types Chart A wide range of constructions were chosen in order to see the full range of possible results. Future studies may focus on more refined material choices and a narrower set of parameters. The analysis was run in Autodesk Green Building Studio which is an excellent tool to perform basic energy models. While GBS does not allow for complex simulations it can quickly and accurately compare a variety of different design alternatives.

We chose to look at four different indicators to compare the results:
• Energy Use Intensity (EUI) indicates how much energy is used per square foot per year and is a very common way of comparing how different buildings perform.
• The quantity of electricity used per year indicates how much energy is used on cooling loads, heating loads, interior loads, and lights.
• The quantity of fuel used per year indicates primarily energy used for heating.
• The annual peak demand indicates the maximum amount of energy used at any single time over the course of a year.

We assessed the data in terms of percentage improvement over the Existing scenario. The charts below provide a comparison of the seven different retrofits.

Results Chart

The Results
What is intriguing in the results is the large difference in performance within the glazing retrofits options between the Double Pane LoE Glazing and the Triple Pane Glazing. While the Double Pane Glazing provides a notable improvement to the building’s energy performance it is still surpassed by all of the other retrofits. Conversely the Triple Pane Glazing far out performs all of the insulation retrofit strategies. The range between the two glazing retrofits indicates that new windows have the potential to have a substantial impact on energy performance. Unfortunately triple pane glazing is typically cost prohibitive and the LoE coatings applied to achieve maximum efficiency are incongruent with historic buildings. As technologies change and improve it is possible that these obstacles will be overcome – potentially making window replacement for energy efficiency purposes a more viable option.

window-detailWith current technologies the results indicate that adding insulation to a building has the most cost effective impact on energy performance. Installing new insulation is typically less expensive than window replacement and the results of this study show that Code Compliant (R-~7) insulation can have a significant impact on overall energy usage, outperforming Double Pane window replacement. Interestingly, the results also indicate that a High Insulation (R-25) retrofit performs better than a Combined Retrofit with Code Compliant Insulation (R-~7) and Double Pane Glass.

The results clearly indicate that adding insulation is an excellent way to improve energy performance without impacting the exterior façade of a historic building. Like any retrofit, insulation poses its own challenges: can it be installed on the interior without affecting historic finishes? Will changes in the temperature of the wall cause deterioration?, etc. Conversely, there are instances where window replacement is the right choice (when the existing windows have reached the end of their lifespan) and in this instance choosing a double pane glazing option can improve energy performance. In most cases, if you are looking to improve the energy performance of your building – it is more effective to explore insulation retrofit options rather than window replacement.

Written by Halla Hoffer, Architect I

Indigenous Mid-Century Religious Architecture of Oregon

During the 1960s Oregon architects, led by the Portland Archdiocese, created significant examples of unique mid‐century churches and religious structures in collaboration with local craftsman, artists, and influenced by European examples, resulting in a unique indigenous religious Modern Oregon style.

Indigenous Mid-Century Religious Architecture of Oregon

Oregon has several examples of unique mid-century churches and religious structures. Oregon is also rich in mid-century religious architecture that are unique examples of the community and/or church leadership’s interest in combining modern architecture with modern art.
During the late 1930’s Oregon architects were seeking ways to meet both the liturgical programs of their clients yet express the architecture using materials evocative of the Northwest.

Watzek-houseGreatly influenced by the 1936 publication of John Yeon’s Watzek House, Oregon architects began to experiment with wood skins and “Mt. Hood” entry facades reminiscent of Yeon’s design. The idea that wood was symbolic of Northwest character continued through the 1950s and 1960s mid-century modern aesthetics. Local architects like Francis Jacobberger, McCoy & Bradbury, Pietro Belluschi, and others crafter their designs from outside to inside using local species of wood while simultaneously using wood to express the structural elements.

During the 1950s and 1960s, architectural journals devoted pages and images to the increasingly innovative use of concrete as both a structural element and aesthetic material. Local Oregon firms too experimented with concrete. John Maloney’s 1950 design for St. Ignatius is executed entirely of formed concrete. The exterior, interior, and the bell tower are unabashedly presented as an aesthetic material worthy of religious structure. Maloney deliberately painted the interior white to match the exterior and emphasize the versatility and economy of concrete, the new material of choice.

Queen of Peace
One of the most unique indigenous examples of Oregon religious architecture is the Queen of Peace in north Portland. Queen of Peace combines both the engineering daring of concrete with the creative influences from local artists. Queen of Peace is created with clay, river stone, and stunning minimalist concrete structure.

120715 N Portland Church 001

Queen of Peace was influenced by Friar John Domin who served the Portland Archdiocese as a priest for 57 years, as a pastor of several parishes, a high school art teacher, and volunteer at the Art Institute of Portland. As Chairman of the Sacred Art Commission of the Archdiocese of Portland, he actively engaged in the design process of churches and chapels. He worked with architects and hired ingenious liturgical artists who worked in a variety of media to enhance churches with stunning sacred art. ” (Sanctuary for Sacred Arts website)

bronze-entry-doors-queen-of-peaceWell known Oregon artists, including Ray Grimm, a ceramists, created the dominating Tree of Life mosaic on the west façade. LeRoy Setziol, the “Father of Wood Carving in Oregon,” created the wood Stations of the Cross and baptismal font. Surprisingly Setziol was commissioned to execute the stained glass windows as well. And Lee Kelly, one of Portland’s best known metal sculptors, enriched the church with delicate displays of metal work both on the interior and exterior. Queen of Peace is a marvelous collaboration of architecture, art, and technical daring creating a wonderful display of Oregon indigenous mid-century religious architecture.



Written by Peter Meijer AIA, NCARB, Principal. This post is an excerpt from Peter’s presentation at this year’s DoCoMoMo_US National Symposium: Modernism on the Prairie. Peter is the President and Founder of DoCoMoMo_US Oregon Chapter. For more information, please visit: DoCoMoMo-US

Modern Residential Building Styles

city-of-olympia-survey-pmapdxBuildings constructed before 1965 have reached the age of eligibility for being considered historic by the standards of the National Register. That means that much of Modern Architecture, the general period ranging from 1950 through 1970, is historic, or soon will be considered historic as the 50-year mark is crossed. As historians assess and study Modern Architecture, we provide ever more precise descriptions and terms to describe the sub-styles and variations within the large umbrella term, “Modern.” As in taxonomy, which classifies and categorizes living organisms, we can recognize and assign groups of similar resources together for study.

Modern architecture had its roots after World War I as part of an egalitarian movement. The new architecture looked to industrial materials and processes to replace painstaking handwork; a horizontal proportion and deliberate embrace of the ground plane as opposed to a formal, vertical building proportion; and the rejection of ornamentation.

A Mid-Century Residential Survey in the City of Olympia

PMA has been working on a Mid-Century Residential survey in the City of Olympia. The date of construction for resources surveyed is limited to a two-decade span from 1945 to 1965, and the building type is limited to single-family residential. Surprisingly, there are more individual sub-styles found in this survey than were identified in a more broadly focused survey, our 2013 Mid-Century non-residential survey in St Louis, MO. The reason for this is that the tight focus of study allows for classification based on more specific characteristics.
WWII cottage-city-of-olympia-survey-pmapdx
The St. Louis survey identified resources constructed from 1945 to 1975 as being either Moderne, Brutalist, International Style, New Formalist, Neo-Expressionist, or simply “Modern Movement” if the style could not be placed in any sub-style. A few had mixed characteristics. The wide variety of building types in the survey, including churches, high-rise towers, and industrial buildings, kept style classifications necessarily broad. Local variations of styles were observed and identified, but were not given their own identifying style name. A future regional survey of the same time period could invite more stylistic classification, if there were enough similar resources to compare.

The Olympia Mid-Century Residential survey covers approximately 400 single-family homes. The variations in style identified might be described in an overview as belonging to one of three “families.” Transitional Modern includes Stripped Classical, Minimal Traditional, and World War II-Era Cottage styles. The second group is Ranch style, which covers a broad range of sub-styles and forms, including Split-Level or Split-Entry Ranch; Contemporary Ranch; Storybook Ranch; and Colonial or Early American Ranch. The last group is a Neo-Expressionist collection of styles that were primarily constructed starting about 1965. These styles include A-Frame, Shed, Geodesic Dome, neo-Futurist, Pavilion, and other eclectic explorations and celebrations of building technology and structure. While none of these Neo-Expressionist styles were identified in the Olympia Mid-Century Residential survey, PMA expects at least one of these (Shed style) to be identified in urban Olympia if the time period studied is extended beyond 1965. Also, many of these styles were constructed in more rural areas than the concentrated Mid-Century neighborhoods examined in the survey. It is possible that Neo-Expressionist residences will come to light with further survey and exploration.

Min-Traditional-city-of-olympia-survey-pmapdxThe Olympia survey classified the first grouping of styles as those that are transitional. Transitional Modern styles have some elements of Modern and some elements of more traditional architecture. Windows might be vertically-oriented, double-hung wood windows (traditional) rather than having horizontal proportions (Modern). A roof might be a moderate pitch, with minimal overhangs (traditional), rather than a shallow pitch with outwardly-extending gables (Modern). In Olympia, 37% of the houses surveyed were Modern Minimal Traditional, by far the most prevalent Transitional Modern style.

Ranch-city-of-olympia-survey-pmapdxRanch style architecture is the style that architecture critics have generally spurned, since houses were often constructed by contractors without architect’s involvement. Ranch buildings are broad, one-story, and horizontal in overall proportion. They have an attached garage which faces the street and is part of the overall form of the house, and almost always a large picture window facing the street as well. Cladding is used to accentuate the horizontal lines of the house, so there is often a change in material at the lower part of the front façade- brick veneer was a popular choice. Many of the sub-styles of Ranch architecture are “styled” Ranch houses, meaning that elements from another style of architecture were placed on a Ranch form building. One example is Storybook Ranch, which uses “gingerbread” trim, dormers or a cross-gable, and sometimes diamond-pane windows. Are these decorated sub-styles still part of the canon of Modern Architecture? In many ways, they are more Post-Modern than Modern, but that distinction is worthy of an involved discussion of its own.

Split-level-city-of-olympia-survey-pmapdxThe Olympia Mid-Century Residential survey found over half the resources surveyed to be Ranch or variants of Ranch style. 31% of the surveyed homes were identified as simply Ranch, with another 11% Early Ranch, 9% Contemporary Ranch, 4% Split-Level or Split-Entry, and 4% one of the “Styled” Ranch variations. Sheer numbers alone remind us that the Ranch is deserving of study and shows us how the majority of middle-class Americans lived. As Alan Hess writes in his book Ranch House,

“Most critics overlooked or ignored the prototypical Ranch house architecture, the variety of its manifestations, the social complexity of its neighborhoods, and the tract Ranch’s often innovative mass-construction methods. To most critics living in traditional cities with little contact with the conditions, desires, and apparent satisfactions of middle-class suburban life, the suburbs were a foreign land.”

The more we study these styles of Modern residential architecture, the more they may be appreciated, celebrated, and well-maintained. And if you live in or grew up in a Ranch style house, it is now potentially historic.
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Written by Kristen Minor, Preservation Planner. For additional MCM survey projects, please visit our STL Modern Non-Residential Survey project.

Design Through Nonprofits

1.	Architecture for Humanity Chapter Network – 30 remaining chapters after the bankruptcy

Architecture for Humanity Chapter Network – 30 remaining chapters after the bankruptcy

There are several non-profit organizations that provide pro bono design and architectural services to communities through volunteer networks. All have the common goal of breaking down the barriers to accessing design. As a volunteer for Architecture for Humanity (AFH), I continually ask myself, how can these organizations better serve the community? What can we do to provide incentives for architects to do pro bono design or become volunteers? And, how can we differentiate these similar non-profits to cater to specific causes and volunteer groups? In addition to these important questions, Architecture for Humanity has recently filed for bankruptcy, and the even bigger question is what is next for AFH? And does this foreshadow the unfeasibility of non-profit design?

The answer is there is much to come! If anything it foreshadows a new beginning!
In the wave of the bankruptcy, all intellectual property including the name Architecture for Humanity and slogans like Design Like You Give a Damn, and the website including the Open Source Network have all become property of the bank. I will speak about the organization in past tense because technically it no longer exists. For those who are unfamiliar, Architecture for Humanity’s core mission was “[AFH] believes everyone deserves access to the benefits of good design.” Their publication Design Like You Give a Damn popularized pro bono work and disaster relief design efforts. Architecture for Humanity promoted a unique idea of crowd sharing design ideas for disaster relief through their Open Source Network, which could then be accessed by communities in need. The goal was to provide design solutions to communities in need that couldn’t afford the time and energy required to solve rebuilding design problems. Reconstruction projects after disasters are typically poorly designed and don’t respond to community socio-cultural and economic needs. Architecture for Humanity strove to solve this dilemma through a worldwide network of designers volunteering their time and ideas. Architecture for Humanity had local chapters that addressed local communities’ efforts instead of global disaster relief. Local chapters focused on creating the resiliency within communities.

My involvement in Architecture for Humanity started with the Hurricane Katrina disaster when our Clemson University studio began designing and fabricating a disaster-relief housing prototype in New Orleans. This was added to the Open Architecture Network (OAN) with the hope that the prototype could be a solution to the rebuilding effort. Like most of these projects, efforts were stifled by the bureaucracy of disaster relief. Since then, I have been volunteering for the past four years on small community projects through the AFH Portland Chapter.

Janus Youth’s Village Garden pavilion – Designed and built by AFH PDX Chapter in collaboration with Oregon Tradeswomen

Janus Youth’s Village Garden pavilion – Designed and built by AFH PDX Chapter in collaboration with Oregon Tradeswomen


As a result of the AFH filing for bankruptcy, the AFH core headquarters has collapsed leaving the chapter network to reorganize and create a new identity. The intellectual property of AFH, including the name and website and the OAN are all property of the bank. Of the 57 original chapters, 30 chapters are moving forward to continue on AFH’s path. A transitional steering committee has been formed with representatives from every region and will form an advisory board that will set the stage for self-governance and strategic partnerships. It is also interesting that AFH originally never intended to have a chapter network. Those who were inspired by the cause took it upon themselves to create local chapters and AFH agreed to allow these satellite chapters to become part of the organization. As one of the directors of the Portland chapter, I have been participating in re-imagining our mission statement and goals, looking for new opportunities to connect with other non-profits, and reaching outside of architecture to include all design fields. We can also learn from other design non-profits such as Public Architecture and Architects without Borders.

Non-profit design work has received some skepticism of whether a sustainable business model can be reached surrounding the bankruptcy of AFH. AFH’s vision was so powerful, that the non-profit grew exponentially in its original years. For an organization that relied heavily on donations to keep running, the stability was compromised when donations waned and AFH struggled to keep the headquarters office funded. The rapid growth seemed to be a large cause of the sudden deficit. Many contribute the downfall to an unsustainable business model, increased competition for financing, and the founders not being able to adapt their vision to a changing market. The press skeptics raise the question of whether donors will be reluctant to contribute to similar non-profits after the collapse of AFH. Cameron Sinclair, AFH’s founder, responds to this criticism well by saying “I don’t think the idea of architects doing humanitarian work is a failure because AFH ended, I think it will be a failure if architects realize they don’t care.” The committed 30 chapters are determined to carry on with or without support for large donors because they have support of their dedicated volunteers.

AFH Headquarters project - Maeami-hama Community House, 2012 – Community design input for post-disaster rehabilitation

AFH Headquarters project – Maeami-hama Community House, 2012 – Community design input for post-disaster rehabilitation


There are many lessons to be learned as the remaining volunteers of AFH move forward to re-envision the organization. The future is still unclear, but the chapter network will learn from headquarters’ shortcomings. The business model will be changed, the organization of the network will no longer rely on a head chapter, and the projects might become more localized and financially sustainable. The bankruptcy has made the network of chapters stronger and our communication with each other has enabled continued enthusiasm for the cause. It is an exciting future for everyone involved because we are all included in the organization’s recreation. The Portland Chapter hopes to explore ways we can best connect communities to design. We want to provide the guidance and knowledge of design language and mediums to enable community visions.

I hope this can be a reminder on how important design and architecture are to creating vibrant communities. Organizations like AFH, Public Architecture, and Architects without Borders are all striving to bring greater accessibility to design. These organizations bring professionals closer to their community, give students and emerging professionals design and management experience, and help communities solve their design needs. The remaining chapters, consisting of thousands of volunteers around the world, are committed to providing pro-bono design services, advocacy, and training within our local communities. The next question to be asked is how can the AEC community be supported in ways that enable more professionals to provide accessible design?

Written by Hali Knight, Architect I

Sustainable Housing: High Desert Design

Eco-Huts for Warm Springs Tribes

Warm-Springs-ProForma-pmapdx-designProjects that integrate building science, stewardship planning, and place design are simultaneously exciting and challenging. Any one of the three core concepts can drive the decision making process resulting in a number of solutions. Our current concepts for minimalist eco structures, or “Huts” in the beautiful High Desert of Eastern Oregon are a fantastic challenge.

PMA was provided an opportunity to create temporary Eco-Huts for both the avid fly fishing community and also the vacationer seeking solitude and natural beauty. The site is nestled on the right bank along a gentle curve of the Deschutes River adjacent to the Warm Spring Tribe Reservation. The site topography has a shallow slope towards the river with basalt escarpments forming the river valley. Landscape species include juniper, white pines, native grass, lavender, and wild flowers.

Warm-Springs-ProForma-pmapdx-designWorking with the The Confederate Tribes of Warm Springs, PMA created a prototype model, easily constructed and assembled off site (test fit), then transported to the site and efficiently erected. The prototype was designed to be economical and constructed from lumber from the local lumber mill that produces products from high desert pines. A contemporary design style was chosen to harmonize with existing mid-century Belluschi homes on the property. Both the Belluschi homes and the Eco-Huts stand in contrast with the landscape and topography.

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Perspective-pmapdx-designConceived to have minimal footprints on the land, the Huts rest on piers elevating the floor above the land and accommodating the undulating landscape. A modular dimension was chosen permitting variation in the Eco-Hut sizes. The floor, walls, and roof planes are built off-site and tilted in place. Exterior stained wood material varying from plywood to sawn boards were chosen to harmonize with the High Desert landscape and be of minimal maintenance to the Tribes. Plywood panels are dressed with battens and either in-set from the wood framing or installed flush to the exterior. Sawn mill boards are stained dark desert grey and applied horizontally to create solid side walls atop of which are placed ribbon windows. The primary entry and view wall is a wood frame window and door façade. A deep roof overhang protects the interior from solar gain. Interiors are exposed panel faces or stained mill boards. Partial height walls denote areas of more privacy. The process of assembling the Eco-Huts on-site and disassembling them in the future determined the material pallet of dimensional lumber and pre-assembled wood window walls. The prototype incorporates modular concepts enabling variation in floor plan and amenities in direct response to the Owner’s request for market flexibility.

Section-pmapdx-designInherent in our design approach for the Eco-Huts is the creation of design solutions that emphasize the uniqueness of Place. The concept includes Land Restoration and Land Stewardship. PMA’s goals when designing the prototypes was to help enhance the natural beauty of the river edge by integrating a built structure into the landscape that has minimal disturbance to the site and will leave no footprint when removed. Willows, sedges, and juniper will be planted to provide riparian cover along the Deschutes River in an effort to increase fish habitat and mitigate flooding. The plantings will also help mitigate visual impact from the river. The lumber mill site’s river edge offers an opportunity to create an employee park and river restoration replacing equipment storage and log staging. The Eco-Huts offer an opportunity to test the integration of stewardship planning and place design.
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Written by Peter Meijer AIA,NCARB, Principal