A comprehensive guide by Semrush helps to analyze a new market in three big steps. Based on best practices and functionalities of the Traffic & Market Toolkit.

In this article:See more ▼Post may contain affiliate links which give us commissions at no cost to you.Preppy fonts capture that quintessential East Coast elite vibe – think Nantucket summers, yacht clubs, and monogrammed everything. These typefaces embody the perfect balance of tradition and refinement that makes preppy design so timeless and aspirational. But here’s the thing: not all fonts can pull off that coveted preppy aesthetic. The best preppy fonts have a certain je ne sais quoi – they’re classic without being stuffy, elegant without being pretentious, and refined without being inaccessible. In this comprehensive guide, we’ll explore the most gorgeous preppy fonts that’ll have your designs looking like they belong in the pages of Town & Country magazine. So grab your pearls and let’s dive into this typographic treasure trove! 👋 Psst... Did you know you can get unlimited downloads of 59,000+ fonts and millions of other creative assets for just $16.95/mo? Learn more »The Preppiest Fonts That Define 2025 Let’s start with the crème de la crème – the fonts that truly embody that preppy spirit. I’ve curated this list based on their ability to channel that classic New England charm while remaining versatile enough for modern design needs. Gatsby Prelude Gatsby Prelude is an elegant and modern Art Deco font duo. It combines sans-serif characters with decorative elements, perfect for creating sophisticated designs with a touch of vintage glamour.Burtuqol Burtuqol is a vintage slab serif font that exudes a retro charm. Its bold, chunky serifs and aged appearance make it ideal for projects requiring a nostalgic or timeworn aesthetic.Gafler Gafler is a classy vintage serif font with decorative elements. It combines elegance with a touch of old-world charm, making it perfect for high-end branding and classic design projects.Get 300+ Fonts for FREEEnter your email to download our 100% free "Font Lover's Bundle". For commercial & personal use. No royalties. No fees. No attribution. 100% free to use anywhere. Kagnue Kagnue is a modern and classy serif font. It offers a fresh take on traditional serif typefaces, blending contemporary design with timeless elegance for versatile use in various design contexts.The Blendinroom The Blendinroom is a retro serif typeface featuring luxurious ligatures. Its vintage-inspired design and intricate details make it ideal for creating sophisticated, old-world aesthetics in design projects.MODER BULES MODER BULES is a playful sans-serif font with a fun, childlike appeal. Its quirky design makes it perfect for kids-oriented projects or Halloween-themed designs, adding a touch of whimsy to typography.Nickey Vintage Nickey Vintage is a decorative display font with a strong vintage flair. Its bold, eye-catching characters make it ideal for headlines, logos, and designs that require a striking retro aesthetic.Ladger Ladger is a casual script font that exudes luxury and elegance. Its flowing lines and graceful curves make it perfect for logo designs, high-end branding, and projects requiring a touch of sophistication.Hadnich Hadnich is a modern script font with a brush-like quality. Its versatile design makes it suitable for various applications, from signage to branding, offering a contemporary take on handwritten typography.Belly and Park Belly and Park is a condensed beauty classic font family featuring both serif and sans-serif styles. Its vintage-inspired design and narrow characters make it ideal for creating elegant, space-efficient layouts.Loubag Loubag is a modern retro font family encompassing sans-serif, serif, and decorative styles. Its bold, fashion-forward design makes it perfect for creating eye-catching headlines and trendy branding materials.Petter And Sons Petter And Sons is a romantic beauty script font with decorative elements. Its elegant, flowing design makes it ideal for wedding invitations, luxury branding, and projects requiring a touch of refined beauty.Preteoria Preteoria is a modern cursive font with a sleek, contemporary feel. Its smooth curves and clean lines make it versatile for various design applications, from branding to digital media projects.Delauney Delauney is an Art Deco-inspired sans-serif font that captures the essence of the roaring twenties. Its geometric shapes and sleek lines make it perfect for creating designs with a bold, metropolitan flair.Amadi Vintage Amadi Vintage is a chic and beautiful serif font with a timeless appeal. Its elegant design and vintage-inspired details make it ideal for creating sophisticated, classic-looking designs and branding materials.LEDERSON LEDERSON is a vintage-inspired shadow font. Its weathered look and strong character make it perfect for designs requiring an authentic, aged aesthetic.Fancyou Fancyou is a versatile serif font with alternate characters. Its elegant design and customizable options make it suitable for a wide range of projects, from formal invitations to modern branding materials.Catterpie Font Catterpie is a handwritten script font that mimics natural handlettering. Its fluid, signature-like style makes it perfect for creating personal, authentic-looking designs and branding materials.Jemmy Wonder Jemmy Wonder is a Victorian-inspired serif font with a strong vintage character. Its ornate details and old-world charm make it ideal for creating designs with a classic, nostalgic feel.Monthey Monthey is a bold, elegant vintage display serif font. Its chunky characters and 70s-inspired design make it perfect for creating eye-catching headlines and retro-themed branding materials.Madville Madville is a classy script font with a versatile design. Its elegant curves and smooth transitions make it suitable for a wide range of projects, from formal invitations to modern branding materials.Crowk Crowk is a luxury serif font with a timeless, elegant appeal. Its refined design and classic proportions make it ideal for high-end branding, editorial layouts, and sophisticated design projects.Peachy Fantasy Peachy Fantasy is an Art Nouveau-inspired display font with decorative elements. Its vintage charm and unique character make it perfect for creating eye-catching headlines and artistic design projects.Cormier Cormier is a decorative sans-serif font with a strong artistic flair. Its unique design and fashion-forward aesthetic make it ideal for creating bold, attention-grabbing headlines and branding materials.Syntage Syntage is a decorative modern luxury font with both serif and ornamental elements. Its retro-inspired design and luxurious details make it perfect for high-end branding and sophisticated design projects.Jeniffer Selfies Jeniffer Selfies is a retro-inspired bold font combining sans-serif and script styles. Its playful design and vintage feel make it ideal for creating nostalgic, fun-loving designs and branding materials.The Rilman The Rilman is a ligature-rich rounded sans-serif font with a 90s-inspired design. Its retro charm and smooth edges make it perfect for creating playful, nostalgic designs and branding materials.Milky Croffle Milky Croffle is a classic beauty elegant serif font. Its refined design and timeless appeal make it ideal for creating sophisticated layouts, high-end branding, and projects requiring a touch of traditional elegance. What Makes a Font Feel Preppy? You might be wondering what exactly gives a font that unmistakable preppy vibe. After years of working with typography, I’ve identified several key characteristics that define the preppy aesthetic: Classic Serif Structure: Most preppy fonts are serifs, drawing inspiration from traditional typography used in prestigious publications and academic institutions. These serifs aren’t just decorative – they’re a nod to centuries of refined typographic tradition. Elegant Proportions: Preppy fonts tend to have well-balanced letterforms with moderate contrast between thick and thin strokes. They’re neither too delicate nor too bold – just perfectly poised, like a well-tailored blazer. Timeless Appeal: The best preppy fonts don’t scream “trendy.” Instead, they whisper “timeless.” They’re the typography equivalent of a strand of pearls – always appropriate, never out of style. Sophisticated Details: Look for subtle refinements in letterforms – graceful curves, well-crafted terminals, and thoughtful spacing. These details separate truly preppy fonts from their more pedestrian cousins. Heritage Inspiration: Many preppy fonts draw inspiration from historical typefaces used by Ivy League universities, prestigious publishing houses, and old-money families. This connection to tradition is what gives them their authentic preppy pedigree. Where to Use Preppy Fonts (And Where Not To) Preppy fonts aren’t one-size-fits-all solutions, but when used appropriately, they’re absolutely magical. Here’s where they shine brightest: Wedding Invitations: Nothing says “elegant affair” quite like a beautifully chosen preppy serif. These fonts are perfect for formal invitations, save-the-dates, and wedding stationery that needs to feel sophisticated and timeless. Luxury Branding: Brands targeting affluent audiences or positioning themselves as premium often benefit from preppy typography. Think boutique hotels, high-end fashion, or artisanal goods. Editorial Design: Magazines, newsletters, and publications focusing on lifestyle, fashion, or culture can leverage preppy fonts to establish credibility and sophistication. Corporate Identity: Professional services, law firms, financial institutions, and consulting companies often choose preppy fonts to convey trustworthiness and establishment credibility. Academic Materials: Universities, prep schools, and educational institutions naturally gravitate toward preppy typography that reflects their traditional values and heritage. However, preppy fonts might not be the best choice for: Tech Startups: The traditional nature of preppy fonts can feel at odds with innovation and disruption. Modern sans serifs usually work better for tech companies. Children’s Brands: While elegant, preppy fonts might feel too formal for products targeting young children. Playful, rounded fonts are typically more appropriate. Casual Brands: If your brand personality is laid-back and approachable, overly formal preppy fonts might create distance between you and your audience. How to Choose the Perfect Preppy Font Selecting the right preppy font requires careful consideration of several factors. Here’s my tried-and-true process: Consider Your Audience: Are you designing for actual prep school alumni, or are you trying to capture that aspirational preppy aesthetic for a broader audience? Your target demographic should influence how traditional or accessible your font choice is. Evaluate the Context: A wedding invitation can handle more ornate details than a business card. Consider where your text will appear and how much personality the context can support. Test Readability: Preppy doesn’t mean hard to read. Always test your chosen font at various sizes to ensure it remains legible. Your typography should enhance communication, not hinder it. Think About Pairing: Will you be using this font alone or pairing it with others? Consider how your preppy serif will work alongside sans serifs for body text or script fonts for accents. Consider Your Medium: Some preppy fonts work beautifully in print but struggle on screens. Others are optimized for digital use but lose their charm in print. Choose accordingly. Pairing Preppy Fonts Like a Pro The magic of preppy typography often lies in thoughtful font pairing. Here are some winning combinations that never fail: Classic Serif + Clean Sans Serif: Pair your preppy serif headline font with a crisp, readable sans serif for body text. This creates hierarchy while maintaining sophistication. Traditional Serif + Script Accent: Use a refined script font sparingly for special elements like signatures or decorative text, balanced by a solid preppy serif for main content. Serif + Serif Variation: Sometimes pairing two serifs from the same family – perhaps a regular weight for body text and a bold condensed version for headlines – creates beautiful, cohesive designs. Remember, less is often more with preppy design. Stick to two or three fonts maximum, and let the inherent elegance of your chosen typefaces do the heavy lifting. The Psychology Behind Preppy Typography Understanding why preppy fonts work so well psychologically can help you use them more effectively. These typefaces tap into powerful associations: Trust and Reliability: The traditional nature of preppy fonts suggests stability and permanence. When people see these fonts, they subconsciously associate them with established institutions and time-tested values. Sophistication and Education: Preppy fonts are reminiscent of academic institutions and intellectual pursuits. They suggest refinement, education, and cultural awareness. Exclusivity and Status: Let’s be honest – part of the preppy aesthetic’s appeal is its association with privilege and exclusivity. These fonts can make designs feel more premium and aspirational. Quality and Craftsmanship: The careful attention to typographic detail in preppy fonts suggests similar attention to quality in whatever they’re representing. Modern Takes on Classic Preppy Style While preppy fonts are rooted in tradition, the best designers know how to give them contemporary flair. Here are some ways to modernize preppy typography: Unexpected Color Palettes: Pair traditional preppy fonts with modern colors. Think sage green and cream instead of navy and white, or soft blush tones for a fresh take. Generous White Space: Give your preppy fonts room to breathe with plenty of white space. This modern approach to layout keeps traditional fonts feeling fresh and uncluttered. Mixed Media Integration: Combine preppy typography with photography, illustrations, or graphic elements for a more contemporary feel while maintaining that sophisticated foundation. Strategic Contrast: Pair your refined preppy fonts with unexpected elements – maybe a bold geometric shape or modern photography – to create dynamic tension. Preppy Font Alternatives for Every Budget Not every preppy project has a premium font budget, and that’s okay! Here are some strategies for achieving that coveted preppy look without breaking the bank: Google Fonts Gems: Fonts like Playfair Display, Crimson Text, and Libre Baskerville offer sophisticated serif options that can work beautifully for preppy designs. Font Pairing Magic: Sometimes combining two free fonts thoughtfully can create a more expensive-looking result than using a single premium font poorly. Focus on Execution: A free font used with excellent spacing, hierarchy, and layout will always look better than an expensive font used carelessly. Common Preppy Font Mistakes to Avoid Even with the perfect preppy font, poor execution can ruin the effect. Here are the most common mistakes I see designers make: Overdoing the Decoration: Just because a font has elegant details doesn’t mean you need to add more flourishes. Let the typeface’s inherent sophistication speak for itself. Ignoring Hierarchy: Preppy design relies on clear, elegant hierarchy. Don’t make everything the same size or weight – create visual flow through thoughtful typography scaling. Poor Spacing: Cramped text kills the elegant feel of preppy fonts. Give your typography generous leading and appropriate margins. Wrong Context: Using an ultra-formal preppy font for a casual pizza restaurant’s menu will feel jarring and inappropriate. Match your font choice to your content and audience. The Future of Preppy Typography As we look ahead in 2025, preppy fonts continue to evolve while maintaining their classic appeal. We’re seeing interesting trends emerge: Variable Font Technology: Modern preppy fonts are increasingly available as variable fonts, allowing designers to fine-tune weight, width, and optical size for perfect customization. Screen Optimization: Classic preppy fonts are being redrawn and optimized for digital screens without losing their traditional charm. Inclusive Preppy: Designers are expanding the preppy aesthetic beyond its traditional boundaries, creating fonts that maintain sophistication while feeling more accessible and diverse. Sustainable Design: The timeless nature of preppy fonts aligns perfectly with sustainable design principles – these typefaces won’t look dated next year, making them environmentally responsible choices. Conclusion: Embracing Timeless Elegance Preppy fonts represent more than just letterforms – they’re a gateway to timeless elegance and sophisticated communication. Whether you’re designing wedding invitations for a Martha’s Vineyard ceremony or creating brand identity for a boutique law firm, the right preppy font can elevate your work from merely professional to genuinely distinguished. The beauty of preppy typography lies in its ability to feel both traditional and fresh, formal yet approachable. These fonts have stood the test of time because they tap into something fundamental about how we perceive quality, tradition, and sophistication. As you explore the world of preppy fonts, remember that the best typography choices support your message rather than overshadowing it. Choose fonts that enhance your content’s inherent qualities and speak to your audience’s aspirations and values. So whether you’re channeling that old-money aesthetic or simply want to add a touch of refined elegance to your designs, preppy fonts offer a wealth of possibilities. After all, good typography, like good manners, never goes out of style.

One stock recently impacted by a whirlwind of volatility is Block—the fintech powerhouse behind Square, Cash App, Tidal Music, and more. The company’s COO and CFO, Amrita Ahuja, shares how her team is using new AI tools to find opportunity amid disruption and reach customers left behind by traditional financial systems. Ahuja also shares lessons from the video game industry and discusses Gen Z’s surprising approach to money management.   This is an abridged transcript of an interview from Rapid Response, hosted by Robert Safian, former editor-in-chief of Fast Company. From the team behind the Masters of Scale podcast, Rapid Response features candid conversations with today’s top business leaders navigating real-time challenges. Subscribe to Rapid Response wherever you get your podcasts to ensure you never miss an episode. As a leader, when you’re looking at all of this volatility—the tariffs, consumer sentiment’s been unclear, the stock market’s been all over the place. You guys had a huge one-day drop in early May, and it quickly bounced back. How do you make sense of all these external factors? Yeah, our focus is on what we can control. And ultimately, the thing that we are laser-focused on for our business is product velocity. How quickly can we start small with something, launch something for our customers, and then test and iterate and learn so that ultimately, that something that we’ve launched scales into an important product? I’ll give you an example. Cash App Borrow, which is a product where our customers can get access to a line of credit, often $100, $200, that bridges them from paycheck to paycheck. We know so many Americans are living paycheck to paycheck. That’s a product that we launched about three years ago and have now scaled to serve 9 million actives with $15 billion in credit supply to our customers in a span of a couple short years. The more we can be out testing and launching product at a pace, the more we know we are ultimately delivering value to our customers, and the right things will happen from a stock perspective. Block is a financial services provider. You have Square, the point-of-sale system; the digital wallet Cash App, which you mentioned, which competes with Venmo and Robinhood; and a bunch of others. Then you’ve got the buy-now, pay-later leader Afterpay. You chair Square Financial Services, which is Block’s chartered bank. But you’ve said that in the fintech world, Block is only a little bit fin—that comparatively, it’s more tech. Can you explain what you mean by that? What we think is unique about us is our ability as a technology company to completely change innovation in the space, such that we can help solve systemic issues across credit, payments, commerce, and banking. What that means ultimately is we use technologies like AI and machine learning and data science, and we use these technologies in a unique way, in a way that’s different from a traditional bank. We are able to underwrite those who are often frankly forgotten by the traditional financial ecosystems. Our Square Loans product has almost triple the rate of women-owned businesses that we underwrite. Fifty-eight percent of our loans go to women-owned businesses versus 20% for the industry average. For that Cash App Borrow product I was talking about, 70% of those actives, the 9 million actives that we underwrote, fell below 580 as a FICO score. That’s considered a poor FICO score, and yet 97% of repayments are made on time. And this is because we have unique access to data and these technology and tools which can help us uniquely underwrite this often forgotten customer base. Yeah. I mean, credit—sometimes it’s been blamed for financial excesses. But access to credit is also, as you say, an advantage that’s not available to everyone. Do you have a philosophy between those poles—between risk and opportunity? Or is what you’re saying is that the tech you have allows you to avoid that risk? That’s right. Let’s start with how do the current systems work? It works using inferior data, frankly. It’s more limited data. It’s outdated. Sometimes it’s inaccurate. And it ignores things like someone’s cash flows, the stability of your income, your savings rate, how money moves through your accounts, or how you use alternative forms of credit—like buy now, pay later, which we have in our ecosystem through Afterpay. We have a lot of these signals for our 57 million monthly actives on the Cash App side and for the 4 million small businesses on the Square side, and those, frankly, billions of transaction data points that we have on any given day paired with new technologies. And we intend to continue to be on the forefront of AI, machine learning, and data science to be able to empower more people into the economy. The combination of the superior data and the technologies is what we believe ultimately helps expand access. You have a financial background, but not in the financial services industry. Before Block, you were a video game developer at Activision. Are financial businesses and video games similar? Are there things that are similar about them? There are. There actually are some things that are similar, I will say. There are many things that are unique to each industry. Each industry is incredibly complex. You find that when big technology companies try to do gaming. They’ve taken over the world in many different ways, but they can’t always crack the nut on putting out a great game. Similarly, some of the largest technology companies have dabbled in fintech but haven’t been able to go as deep, so they’re both very nuanced and complex industries. I would say another similarity is that design really matters. Industrial design, the design of products, the interface of products, is absolutely mission-critical to a great game, and it’s absolutely mission-critical to the simplicity and accessibility of our products, be it on Square or Cash App. And then maybe the third thing that I would say is that when I was in gaming, at least the business models were rapidly changing from an intermediary distribution mechanism, like releasing a game once and then selling it through a retailer, to an always-on, direct-to-consumer connection. And similarly with banking, people don’t want to bank from 9 to 5, six days a week. They want 24/7 access to their money and the ability to, again, grow their financial livelihood, move their money around seamlessly. So, some similarities are there in that shift to an intermediary model or a slower model to an always-on, direct-to-consumer connection. Part of your target audience or your target customer base at Block are Gen Z folks. Did you learn things at Activision about Gen Z that has been useful? Are there things that businesses misunderstand about younger generations still? What we’ve learned is that Gen Z, millennial customers, aren’t going to do things the way their parents did. Some of our stats show that 63% of Gen Z customers have moved away from traditional credit cards, and over 80% are skeptical of them. Which means they’re not using a credit card to manage expenses; they’re using a debit card, but then layering on on a transaction-by-transaction basis. Or again, using tools like buy now, pay later, or Cash App Borrow, the means in which they’re managing their consistent cash flows. So that’s an example of how things are changing, and you’ve got to get up to speed with how the next generation of customers expects to manage their money.

Artificial intelligence is already rewriting the rules of wireless and telecom — powering predictive maintenance, streamlining network operations, and enabling more innovative services. As AI scales, the disruption will be faster, deeper, and harder to reverse than any prior shift in the industry. Compared to the sweeping changes AI is set to unleash, past telecom innovations look incremental. AI is redefining how networks operate, services are delivered, and data is secured — across every device and digital touchpoint. AI Is Reshaping Wireless Networks Already Artificial intelligence is already transforming wireless through smarter private networks, fixed wireless access (FWA), and intelligent automation across the stack. AI detects and resolves network issues before they impact service, improving uptime and customer satisfaction. It’s also opening the door to entirely new revenue streams and business models. Each wireless generation brought new capabilities. AI, however, marks a more profound shift — networks that think, respond, and evolve in real time. AI Acceleration Will Outpace Past Tech Shifts Many may underestimate the speed and magnitude of AI-driven change. The shift from traditional voice and data systems to AI-driven network intelligence is already underway. Although predictions abound, the true scope remains unclear. It’s tempting to assume we understand AI’s trajectory, but history suggests otherwise. Today, AI is already automating maintenance and optimizing performance without user disruption. The technologies we’ll rely on in the near future may still be on the drawing board. Few predicted that smartphones would emerge from analog beginnings—a reminder of how quickly foundational technologies can be reimagined. History shows that disruptive technologies rarely follow predictable paths — and AI is no exception. It’s already upending business models across industries. Technological shifts bring both new opportunities and complex trade-offs. AI Disruption Will Move Faster Than Ever The same cycle of reinvention is happening now — but with AI, it’s moving at unprecedented speed. Despite all the discussion, many still treat AI as a future concern — yet the shift is already well underway. As with every major technological leap, there will be gains and losses. The AI transition brings clear trade-offs: efficiency and innovation on one side, job displacement, and privacy erosion on the other. Unlike past tech waves that unfolded over decades, the AI shift will reshape industries in just a few years — and that change wave will only continue to move forward. AI Will Reshape All Sectors and Companies This shift will unfold faster than most organizations or individuals are prepared to handle. Today’s industries will likely look very different tomorrow. Entirely new sectors will emerge as legacy models become obsolete — redefining market leadership across industries. Telecom’s past holds a clear warning: market dominance can vanish quickly when companies ignore disruption. Eventually, the Baby Bells moved into long-distance service, while AT&T remained barred from selling local access — undermining its advantage. As the market shifted and competitors gained ground, AT&T lost its dominance and became vulnerable enough that SBC, a former regional Bell, acquired it and took on its name. It’s a case study of how incumbents fall when they fail to adapt — precisely the kind of pressure AI is now exerting across industries. SBC’s acquisition of AT&T flipped the power dynamic — proof that size doesn’t protect against disruption. The once-crowded telecom field has consolidated into just a few dominant players — each facing new threats from AI-native challengers. Legacy telecom models are being steadily displaced by faster, more flexible wireless, broadband, and streaming alternatives. No Industry Is Immune From AI Disruption AI will accelerate the next wave of industrial evolution — bringing innovations and consequences we’re only beginning to grasp. New winners will emerge as past leaders struggle to hang on — a shift that will also reshape the investment landscape. Startups leveraging AI will likely redefine leadership in sectors where incumbents have grown complacent. Nvidia’s rise is part of a broader trend: the next market leaders will emerge wherever AI creates a clear competitive advantage — whether in chips, code, or entirely new markets. The AI-driven future is arriving faster than most organizations are ready for. Adapting to this accelerating wave of change is no longer optional — it’s essential. Companies that act decisively today will define the winners of tomorrow.

Researchers from the US-based University of Massachusetts Amherst (UMass), in collaboration with the Massachusetts Institute of Technology (MIT) Department of Mechanical Engineering, have applied cold spray to repair the deteriorating “Brown Bridge” in Great Barrington, built in 1949. The project marks the first known use of this method on bridge infrastructure and aims to evaluate its effectiveness as a faster, more cost-effective, and less disruptive alternative to conventional repair techniques. “Now that we’ve completed this proof-of-concept repair, we see a clear path to a solution that is much faster, less costly, easier, and less invasive,” said Simos Gerasimidis, associate professor of civil and environmental engineering at the University of Massachusetts Amherst. “To our knowledge, this is a first. Of course, there is some R&D that needs to be developed, but this is a huge milestone to that,” he added. The pilot project is also a collaboration with the Massachusetts Department of Transportation (MassDOT), the Massachusetts Technology Collaborative (MassTech), the U.S. Department of Transportation, and the Federal Highway Administration. It was supported by the Massachusetts Manufacturing Innovation Initiative, which provided essential equipment for the demonstration. Members of the UMass Amherst and MIT Department of Mechanical Engineering research team, led by Simos Gerasimidis (left, standing). Photo via UMass Amherst. Tackling America’s Bridge Crisis with Cold Spray Technology Nearly half of the bridges across the United States are in “fair” condition, while 6.8% are classified as “poor,” according to the 2025 Report Card for America’s Infrastructure. In Massachusetts, about 9% of the state’s 5,295 bridges are considered structurally deficient. The costs of restoring this infrastructure are projected to exceed $190 billion—well beyond current funding levels.  The cold spray method consists of propelling metal powder particles at high velocity onto the beam’s surface. Successive applications build up additional layers, helping restore its thickness and structural integrity. This method has successfully been used to repair large structures such as submarines, airplanes, and ships, but this marks the first instance of its application to a bridge. One of cold spray’s key advantages is its ability to be deployed with minimal traffic disruption.  “Every time you do repairs on a bridge you have to block traffic, you have to make traffic controls for substantial amounts of time,” explained Gerasimidis. “This will allow us to [apply the technique] on this actual bridge while cars are going [across].” To enhance precision, the research team integrated 3D LiDAR scanning technology into the process. Unlike visual inspections, which can be subjective and time-consuming, LiDAR creates high-resolution digital models that pinpoint areas of corrosion. This allows teams to develop targeted repair plans and deposit materials only where needed—reducing waste and potentially extending a bridge’s lifespan. Next steps: Testing Cold-Sprayed Repairs The bridge is scheduled for demolition in the coming years. When that happens, researchers will retrieve the repaired sections for further analysis. They plan to assess the durability, corrosion resistance, and mechanical performance of the cold-sprayed steel in real-world conditions, comparing it to results from laboratory tests. “This is a tremendous collaboration where cutting-edge technology is brought to address a critical need for infrastructure in the commonwealth and across the United States,” said John Hart, Class of 1922 Professor in the Department of Mechanical Engineering at MIT. “I think we’re just at the beginning of a digital transformation of bridge inspection, repair and maintenance, among many other important use cases.” 3D Printing for Infrastructure Repairs Beyond cold spray techniques, other innovative 3D printing methods are emerging to address construction repair challenges. For example, researchers at University College London (UCL) have developed an asphalt 3D printer specifically designed to repair road cracks and potholes. “The material properties of 3D printed asphalt are tunable, and combined with the flexibility and efficiency of the printing platform, this technique offers a compelling new design approach to the maintenance of infrastructure,” the UCL team explained. Similarly, in 2018, Cintec, a Wales-based international structural engineering firm, contributed to restoring the historic Government building known as the Red House in the Republic of Trinidad and Tobago. This project, managed by Cintec’s North American branch, marked the first use of additive manufacturing within sacrificial structures. It also featured the installation of what are claimed to be the longest reinforcement anchors ever inserted into a structure—measuring an impressive 36.52 meters. Join our Additive Manufacturing Advantage (AMAA) event on July 10th, where AM leaders from Aerospace, Space, and Defense come together to share mission-critical insights. Online and free to attend.Secure your spot now. Who won the2024 3D Printing Industry Awards? Subscribe to the 3D Printing Industry newsletterto keep up with the latest 3D printing news. You can also follow us onLinkedIn, and subscribe to the 3D Printing Industry Youtube channel to access more exclusive content. Featured image shows members of the UMass Amherst and MIT Department of Mechanical Engineering research team, led by Simos Gerasimidis (left, standing). Photo via UMass Amherst.

Solar air heating is among the most cost-effective applications of solar thermal energy. These systems are used for space heating and preheating fresh air for ventilation, typically using glazed or unglazed perforated solar collectors. The collectors draw in outside air, heat it using solar energy, and then distribute it through ductwork to meet building heating and fresh air needs. In 2024, Canada led again the world for the at least seventh year in a row in solar air heating adoption. The four key suppliers – Trigo Energies, Conserval Engineering, Matrix Energy, and Aéronergie – reported a combined 26,203 m2 (282,046 ft2) of collector area sold last year. Several of these providers are optimistic about the growing demand. These findings come from the newly released Canadian Solar Thermal Market Survey 2024, commissioned by Natural Resources Canada. Canada is the global leader in solar air heating. The market is driven by a strong network of experienced system suppliers, optimized technologies, and a few small favorable funding programs – especially in the province of Quebec. Architects and developers are increasingly turning to these cost-effective, façade-integrated systems as a practical solution for reducing onsite natural gas consumption. Despite its cold climate, Canada benefits from strong solar potential with solar irradiance in many areas rivaling or even exceeding that of parts of Europe. This makes solar air heating not only viable, but especially valuable in buildings with high fresh air requirements including schools, hospitals, and offices. The projects highlighted in this article showcase the versatility and relevance of solar air heating across a range of building types, from new constructions to retrofits. Figure 1: Preheating air for industrial buildings: 2,750 m2 (29,600 ft2) of Calento SL solar air collectors cover all south-west and south-east facing facades of the FAB3R factory in Trois-Rivières, Quebec. The hourly unitary flow rate is set at 41 m3/m2 or 2.23 cfm/ft2 of collector area, at the lower range because only a limited number of intake fans was close enough to the solar façade to avoid long ventilation ductwork. Photo: Trigo Energies Quebec’s solar air heating boom: the Trigo Energies story Trigo Energies makes almost 90 per cent of its sales in Quebec. “We profit from great subsidies, as solar air systems are supported by several organizations in our province – the electricity utility Hydro Quebec, the gas utility Energir and the Ministry of Natural Resources,” explained Christian Vachon, Vice President Technologies and R&D at Trigo Energies. Trigo Energies currently has nine employees directly involved in planning, engineering and installing solar air heating systems and teams up with several partner contractors to install mostly retrofit projects. “A high degree of engineering is required to fit a solar heating system into an existing factory,” emphasized Vachon. “Knowledge about HVAC engineering is as important as experience with solar thermal and architecture.” One recent Trigo installation is at the FAB3R factory in Trois-Rivières. FAB3R specializes in manufacturing, repairing, and refurbishing large industrial equipment. Its air heating and ventilation system needed urgent renovation because of leakages and discomfort for the workers. “Due to many positive references he had from industries in the area, the owner of FAB3R contacted us,” explained Vachon. “The existence of subsidies helped the client to go for a retrofitting project including solar façade at once instead of fixing the problems one bit at a time.” Approximately 50 per cent of the investment costs for both the solar air heating and the renovation of the indoor ventilation system were covered by grants and subsidies. FAB3R profited from an Energir grant targeted at solar preheating, plus an investment subsidy from the Government of Quebec’s EcoPerformance Programme.   Blue or black, but always efficient: the advanced absorber coating In October 2024, the majority of the new 2,750 m² (29,600 ft2) solar façade at FAB3R began operation (see figure 1). According to Vachon, the system is expected to cover approximately 13 per cent of the factory’s annual heating demand, which is otherwise met by natural gas. Trigo Energies equipped the façade with its high-performance Calento SL collectors, featuring a notable innovation: a selective, low-emissivity coating that withstands outdoor conditions. Introduced by Trigo in 2019 and manufactured by Almeco Group from Italy, this advanced coating is engineered to maximize solar absorption while minimizing heat loss via infrared emission, enhancing the overall efficiency of the system. The high efficiency coating is now standard in Trigo’s air heating systems. According to the manufacturer, the improved collector design shows a 25 to 35 per cent increase in yield over the former generation of solar air collectors with black paint. Testing conducted at Queen’s University confirms this performance advantage. Researchers measured the performance of transpired solar air collectors both with and without a selective coating, mounted side-by-side on a south-facing vertical wall. The results showed that the collectors with the selective coating produced 1.3 to 1.5 times more energy than those without it. In 2024, the monitoring results were jointly published by Queen’s University and Canmat Energy in a paper titled Performance Comparison of a Transpired Air Solar Collector with Low-E Surface Coating. Selective coating, also used on other solar thermal technologies including glazed flat plate or vacuum tube collectors, has a distinctive blue color. Trigo customers can, however, choose between blue and black finishes. “By going from the normal blue selective coating to black selective coating, which Almeco is specially producing for Trigo, we lose about 1 per cent in solar efficiency,” explained Vachon. Figure 2: Building-integrated solar air heating façade with MatrixAir collectors at the firehall building in Mont Saint Hilaire, south of Montreal. The 190 m2 (2,045 ft2) south-facing wall preheats the fresh air, reducing natural gas consumption by 18 per cent compared to the conventional make-up system. Architect: Leclerc Architecture. Photo: Matrix Energy Matrix Energy: collaborating with architects and engineers in new builds The key target customer group of Matrix Energy are public buildings – mainly new construction. “Since the pandemic, schools are more conscious about fresh air, and solar preheating of the incoming fresh air has a positive impact over the entire school year,” noted Brian Wilkinson, President of Matrix Energy. Matrix Energy supplies systems across Canada, working with local partners to source and process the metal sheets used in their MatrixAir collectors. These metal sheets are perforated and then formed into architectural cladding profiles. The company exclusively offers unglazed, single-stage collectors, citing fire safety concerns associated with polymeric covers. “We have strong relationships with many architects and engineers who appreciate the simplicity and cost-effectiveness of transpired solar air heating systems,” said President Brian Wilkinson, describing the company’s sales approach. “Matrix handles system design and supplies the necessary materials, while installation is carried out by specialized cladding and HVAC contractors overseen by on-site architects and engineers,” Wilkinson added. Finding the right flow: the importance of unitary airflow rates One of the key design factors in solar air heating systems is the amount of air that passes through each square meter of the perforated metal absorber,  known as the unitary airflow rate. The principle is straightforward: higher airflow rates deliver more total heat to the building, while lower flow rates result in higher outlet air temperatures. Striking the right balance between air volume and temperature gain is essential for efficient system performance. For unglazed collectors mounted on building façades, typical hourly flow rates should range between 120 and 170 (m3/h/m2), or 6.6 to 9.4 cfm/ft2. However, Wilkinson suggests that an hourly airflow rate of around 130 m³/h/m² (7.2 cfm/ft2) offers the best cost-benefit balance for building owners. If the airflow is lower, the system will deliver higher air temperatures, but it would then need a much larger collector area to achieve the same air volume and optimum performance, he explained. It’s also crucial for the flow rate to overcome external wind pressure. As wind passes over the absorber, air flow through the collector’s perforations is reduced, resulting in heat losses to the environment. This effect becomes even more pronounced in taller buildings, where wind exposure is greater. To ensure the system performs well even in these conditions, higher hourly airflow rates typically between 150 and 170 m³/m² (8.3 to 9.4 cfm/ft2)  are necessary. Figure 3: One of three apartment blocks of the Maple House in Toronto’s Canary District. Around 160 m2 (1,722 ft2) of SolarWall collectors clad the two-storey mechanical penthouse on the roof. The rental flats have been occupied since the beginning of 2024. Collaborators: architects-Alliance, Claude Cormier et Associés, Thornton Tomasetti, RWDI, Cole Engineering, DesignAgency, MVShore, BA Group, EllisDon. Photo: Conserval Engineering Solar air heating systems support LEED-certified building designs Solar air collectors are also well-suited for use in multi-unit residential buildings. A prime example is the Canary District in Toronto (see Figure 3), where single-stage SolarWall collectors from Conserval Engineering have been installed on several MURBs to clad the mechanical penthouses. “These penthouses are an ideal location for our air heating collectors, as they contain the make-up air units that supply corridor ventilation throughout the building,” explained Victoria Hollick, Vice President of Conserval Engineering. “The walls are typically finished with metal façades, which can be seamlessly replaced with a SolarWall system – maintaining the architectural language without disruption.” To date, nine solar air heating systems have been commissioned in the Canary District, covering a total collector area of over 1,000 m² (10,764 ft2). “Our customers have many motivations to integrate SolarWall technology into their new construction or retrofit projects, either carbon reduction, ESG, or green building certification targets,” explained Hollick. The use of solar air collectors in the Canary District was proposed by architects from the Danish firm Cobe. The black-colored SolarWall system preheats incoming air before it is distributed to the building’s corridors and common areas, reducing reliance on natural gas heating and supporting the pursuit of LEED Gold certification. Hollick estimates the amount of gas saved between 10 to 20 per cent of the total heating load for the corridor ventilation of the multi-unit residential buildings. Additional energy-saving strategies include a 50/50 window-to-wall ratio with high-performance glazing, green roofs, high-efficiency mechanical systems, LED lighting, and Energy Star-certified appliances. The ideal orientation for a SolarWall system is due south. However, the systems can be built at any orientation up to 90° east and west, explained Hollick. A SolarWall at 90° would have approximately 60 per cent of the energy production of the same area facing south.Canada’s expertise in solar air heating continues to set a global benchmark, driven by supporting R&D, by innovative technologies, strategic partnerships, and a growing portfolio of high-impact projects. With strong policy support and proven performance, solar air heating is poised to play a key role in the country’s energy-efficient building future. Figure 4: Claude-Bechard Building in Quebec is a showcase project for sustainable architecture with a 72 m2 (775 ft2) Lubi solar air heating wall from Aéronergie. It serves as a regional administrative center. Architectural firm: Goulet et Lebel Architectes. Photo: Art Massif Bärbel Epp is the general manager of the German Agency solrico, whose focus is on solar market research and international communication. The post Op-ed: Canada’s leadership in solar air heating—Innovation and flagship projects appeared first on Canadian Architect.

AI disruption is "unnerving investors in every industry, and it's totally disrupting our business," WPP's outgoing boss Mark Read told CNBC.