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BETTESWORTHConstruction

How Northwestern College’s DeWitt Family Science Center Uses Three Custom Metal Colors

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Northwestern College’s DeWitt Family Science Center is a three-story, 61,000-square-foot building completed in 2019, according to a 2020 Building Enclosure project profile. Its exterior is not conventional painted masonry: it uses architectural flat-lock metal panels finished in three custom Fluropon 70% PVDF coil-coating colors—Expresso, Hedgehog and English Brown—plus champagne-metallic glazed infill panels. The palette ties the new science facility to a predominantly brick campus while giving its long façades a contemporary, layered appearance.

What project does “Family Science Center Coated in Three Colors” describe?

The phrase refers to Northwestern College’s DeWitt Family Science Center in Iowa. The project profile says construction was completed in 2019 and describes a three-story facility totaling 61,000 square feet. Those figures come from the 2020 publication; they are reported project data rather than a new measurement or an updated building survey.

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The center was planned as an academic and research building. The profile lists classrooms, research laboratories, faculty offices, human-patient simulators and a 960-square-foot greenhouse. It also describes collaborative student–faculty research space and a DNA sequencer. Because the available sources are historical project coverage, they document the intended and reported functions at completion, not a current audit of how every room is operated today.

What are the three exterior colors?

The three named hues are Expresso, Hedgehog and English Brown. They are custom hues of Sherwin-Williams Coil Coatings’ Fluropon 70% PVDF coil coating, applied to Americlad Quality Metalcrafts LLC AC-4000 flat-lock panels. The project also includes AC-4000 glazed infill panels in a champagne-metallic finish.

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These names describe an architectural coating specification for this project, not a set of standard interior or exterior retail paints. A paint color with a similar name would not necessarily match the metal finish, gloss, substrate preparation or weathering characteristics specified for the façade. The manufacturer’s trade coverage corroborates the panel and coating description in the PCI Magazine report.

How is the coated-metal façade assembled?

AC-4000 flat-lock panels are used as the visible cladding. Rather than laying one uniform color across each elevation, the design wraps panels around one another and places them in a randomized pattern. That installation approach breaks up long wall expanses, creates overlapping lines and gives the façade changing depth as panels meet at corners and returns.

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The champagne-metallic glazed infill panels add a lighter counterpoint to the three brown-toned hues. In combination, the system reads as a deliberate composition of metal fields, rather than a single wall plane with decorative paint. Panel layout, transitions and the quality of the folds therefore matter as much to the finished appearance as the color schedule itself.

HGA vice president and design principal Amy Douma specifically credited the installation craft in the Building Enclosure profile: “A critical and impressive part of what makes the building is the installation of the panels. Local installer, Interstate Mechanical Corp., has excellent craftmanship – we are so pleased to have worked with them on this project.” The spelling “craftmanship” is retained from the published quotation.

Why did the designers choose a three-color metal palette?

The project’s context was a major driver. Most Northwestern College buildings are brick, so the architects wanted the science center to relate to that established material without reproducing a traditional brick façade. Douma described the palette as “a nod to the brick buildings on campus, but with a modern approach.” The Expresso, Hedgehog and English Brown tones supply the visual connection, while the panel system introduces a sharper, more contemporary surface.

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The sources identify two practical reasons as well. First, the building includes a cantilever, and the profile says coated metal was selected in part because a low-weight exterior material suited that condition. Second, the custom colors were presented as a budget-conscious way to achieve the desired architectural character. No dollar amount, bid comparison or lifecycle-cost analysis is provided, so “budget-conscious” should be read as the project’s reported design rationale rather than a quantified cost claim.

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Douma also explained that the finish changes in appearance with daylight: “The way the finish morphs throughout the day, depending on sunlight, is something we’re able to step back and truly appreciate.” The combination of randomized panel geometry, three dark hues and a metallic infill means the façade can look more or less contrasty as the sun angle changes. That is a visual design observation from the project coverage, not a measured reflectance study.

What does Fluropon 70% PVDF contribute?

Fluropon 70% PVDF is the coil-coating system specified for the colored metal panels. In a coil-coating process, flat metal is cleaned, treated, coated and cured in a controlled manufacturing line before panels are formed and installed. The approach allows the fabricator to deliver a consistent finish across large quantities of sheet while preserving the panel-folding and flat-lock geometry.

The project and manufacturer articles describe the coating as resistant and durable for Iowa weather. Those statements are attributed claims in the coverage; the supplied evidence does not include an independent service-life study, comparative weathering test or quantified color-retention result for this building. Contractors and owners evaluating a similar system should obtain the current product data sheet, finish warranty, substrate requirements and approved cleaning procedures directly from the coating and panel suppliers.

Because the panels are factory-finished, field touch-up is not equivalent to reproducing the original coil coating. Any repair specification should identify the exact panel finish, color, sheen and compatible touch-up materials, and should account for how a repaired area will appear next to weathered panels. The DeWitt project sources do not publish a maintenance schedule or warranty term.

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How does the façade support the building’s academic mission?

The exterior treatment is tied to a building organized around several science and health disciplines. The profile says the center serves biology, chemistry and nursing programs. Classrooms and research labs support teaching and investigation; human-patient simulators provide space for nursing instruction; faculty offices and shared research areas support collaboration; and the greenhouse adds controlled growing space within the science facility.

The reported DNA sequencer is another indication of the technical program planned for the building. It should not be interpreted as proof of a current equipment inventory, since the available source is a completion-era project profile. For construction planning, the more durable lesson is that the envelope had to accompany a technically intensive academic program, with varied interior uses behind a highly articulated exterior.

What can builders learn from the panel layout?

The project demonstrates several coordination issues that become important when a façade uses multiple custom colors and a non-repeating arrangement:

  • Color mapping: A randomized pattern still needs a controlled panel schedule. Elevations, corner conditions and replacement panels should identify the intended hue and orientation.
  • Sample approval: Expresso, Hedgehog, English Brown and champagne metallic should be reviewed as actual coated-metal samples under exterior light. Screen images and consumer paint chips cannot establish a match.
  • Corner continuity: Wrapping panels around one another means folds, reveals and returns are visible design elements. Shop drawings should show how the pattern turns at corners, parapets, openings and the cantilever.
  • Sequencing: Flat-lock panels, trims, flashings and glazed infill must be coordinated so that later trades do not damage the factory finish or force unscheduled substitutions.
  • Replacement planning: Keep a record of coil-coating lot information, panel profiles and approved touch-up products. A future replacement may need to be blended into a field that has experienced different exposure over time.

These are general coordination implications of the described assembly, not a claim that the project experienced installation defects or maintenance problems.

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How does the design compare with a conventional brick exterior?

The sources do not provide a competing brick bid, thermal calculation or performance comparison, so a numerical “better than brick” conclusion would be unsupported. They do establish the design intent: the metal palette references campus brick while offering a lighter cladding option for the cantilever and a more modern surface expression.

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Brick and coated metal also communicate different construction priorities. Brick presents a modular, masonry-based texture; the DeWitt system emphasizes precise sheet-metal fabrication, coating consistency and the geometry of interlocking panels. The right choice on another project would depend on structure, enclosure detailing, fire and code requirements, moisture management, labor availability, budget and the desired relationship to surrounding buildings.

What should a project team verify before specifying a similar system?

A team considering a custom-colored metal façade should treat the DeWitt project as a design precedent, not a complete specification. Confirm the following before procurement:

  1. Substrate and panel profile: Verify the metal type, thickness, dimensions, attachment method and compatibility with the wall assembly.
  2. Coating documentation: Request the current Fluropon 70% PVDF technical data, color standards, gloss range, pretreatment requirements and warranty language applicable to the chosen substrate and region.
  3. Mock-up scope: Build a representative mock-up showing all three colors, the champagne-metallic infill, joints, corners and the proposed randomization. Review it in morning, midday and late-day light.
  4. Envelope interfaces: Coordinate air, water, vapor and thermal-control layers with windows, doors, roofs, parapets and the cantilever structure. A visually successful panel pattern does not by itself prove enclosure performance.
  5. Installation tolerances: Define acceptable alignment, reveal widths, oil-canning visibility, color variation and repair procedures in the construction documents.
  6. Long-term care: Obtain cleaning instructions and inspection intervals from the suppliers. Do not assume that a retail cleaner or field-applied paint is approved for a factory PVDF finish.
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What is documented—and what is not?

The available evidence firmly supports the project identity, reported completion year, building size, story count, panel and coating types, three color names, champagne-metallic infill, randomized installation concept and the listed academic spaces. It also records the architects’ stated goals of relating the building to campus brick, keeping the cantilever’s exterior light and achieving a modern, budget-conscious result.

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It does not establish current enrollment or room use, actual coating color change, quantified durability, energy performance, warranty coverage, lifecycle cost or a comparison with other cladding systems. No independent research statistic or standards statement is supplied. Those limits matter when turning a project profile into a specification: use the published details to understand the design, then obtain current technical documents and project-specific engineering for a new build.

Why the three colors matter to the finished building

The three hues are more than a naming detail. Expresso, Hedgehog and English Brown create a controlled range of brick-adjacent tones, while the champagne-metallic infill prevents the elevations from reading as a single dark mass. Randomized overlaps and changing daylight add another layer of variation without abandoning a coherent palette.

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That combination explains the project’s identity: a science center that acknowledges a brick-campus context but expresses its contemporary program through lightweight, factory-coated metal. The result depends on the complete assembly—panel profile, coating, color distribution, infill, corner detailing and installation—not on any one paint color in isolation.

Frequently Asked Questions

Is the DeWitt Family Science Center painted with ordinary exterior paint?

No. The reported façade uses factory-finished AC-4000 architectural metal panels with custom Fluropon 70% PVDF coil coatings. Retail paint in a similarly named brown would not establish the same color, sheen, substrate adhesion or warranty conditions.

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Can a contractor order Expresso, Hedgehog or English Brown as standard paint colors?

The project coverage identifies them as custom coil-coating hues for this architectural application, not as consumer paint products. Availability, minimum quantities and current color records would have to be confirmed with the coating and panel suppliers.

Does the project prove that the coating will last a specific number of years?

No. The articles describe resistance and durability for Iowa weather, but the supplied evidence contains no independent service-life measurement or quantified color-retention result. A new project should rely on current technical data and written warranty terms.

What should be included in a mock-up for a three-color metal façade?

Include all three colored panels, the champagne-metallic infill, representative joints, corner wraps, openings and the proposed randomized sequence. Review the mock-up outdoors at several times of day so the team can approve color relationships and shadow effects before fabrication.

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