RDH Building Science

A riverside jewel in Stratford: the Tom Patterson Theatre features a bronze-and-glass veil, 600-seat thrust stage, and LEED Gold performance. RDH provided energy and enclosure consulting on this award-winning venue. Architect: @hariripontariniarchitects Photography: @2spacephoto @stratfest @steve.kemp #TomPattersonTheatre #StratfordFestival #SustainableDesign #LEEDGold #BuildingPerformance #BuildingScience #BuildingEnclosure #FacadeEngineering #EnergyModeling #LEEDCertification

CityHousing Hamilton had a clear goal. Deliver deeply affordable housing, fast, without sacrificing performance or dignity. On July 14, the team officially celebrated the grand opening of 1620 Main St. E., a six-storey Passive House building on a remediated urban site in Hamilton’s east end. This project reflects what’s possible when municipalities lead with purpose, collaborate early, and challenge the assumption that better takes longer. From the beginning, CityHousing Hamilton asked: How do we build something that’s not just affordable to live in, but affordable to run? Something that doesn’t lock residents or operators into future costs or inefficiencies? The answer became a locally sourced, prefabricated, mass timber structure, delivered through an integrated design-build model in just over two years, from procurement to occupancy, despite site complexity, approval delays, and a city-wide cyberattack. 1620 Main St. E. is one of the first in North America to combine Passive House certification with affordable housing and Canadian-sourced mass timber. We’re grateful to CityHousing Hamilton for trusting mcCallumSather to help realize their vision. Together with Melloul-Blamey, RDH Building Science, Element5, and many others, we delivered a building that balances speed, comfort, performance, and cost. This isn’t a pilot. It’s proof. And we’re ready to do it again. Read the full release through the link in bio. Exterior Photos by @adrianozimek.photo Interior Photos by @joemartz Melloul-Blamey Construction - Construction Element5 - Timber Supplier MTE Consultants - Civil and Structural DEI Consulting Engineers - Mechanical and Electrical RDH Building Science - Building Envelope and Moisture Control Landwise - Urban Planning OMC Landscape Architecture - Landscape Vortex Fire - OBC & Fire Compliance HGC - Acoustical

Building better is never a solo effort. This year, we worked with incredible teams on projects that advanced performance, design, and durability. Thank you to our clients and collaborators for your partnership and trust. We’re proud of what we’ve built together and excited for what’s ahead as we continue shaping better buildings in the year to come. #BuildingBetter #BuiltTogether #Partnership #BuildingScience #happynewyear2026

The UC Regents just approved the new @ucsf Bakar Ear & Hearing Institute at Mission Bay: one of the most ambitious healthcare projects we’ve worked on. The 150,000-sf facility is defined by a unitized curtain wall with copper-colored glazing and articulated mullion depths that shift across the facade and change with light throughout the day. RDH is the facade engineer and waterproofing consultant (shoutout to @felixrweber @charwren Patrick Jordan), supporting the development of the building enclosure alongside the integrated project delivery team. Completion is slated for 2029. @iwamotoscott @dga_architecture @bkf1915 @gls.land.arch @truebeckconstruction @tippingstructural @meyersplusengineers

Historic preservation starts with understanding. Our historic and heritage practice combines building science with preservation expertise to help these buildings stand strong. Swipe to see the before and afters, then tap the link in bio to read how we approached three landmark projects from Seattle to Cambridge. Happy National Historic Preservation Month! #historicpreservationmatters #buildingscience #heritageconservation #buildingperformance

@daveshotchicken + 4pm at RDH Oakland = 2026 Ping Pong Tourney 🏓 (Not pictured: almost all the games) This year’s champ is none other than the elite athlete @kurtweninger for the third year in a row. 👑

Deep retrofits succeed when teams focus on the right problems at the right time and stay grounded in what is actually driving decisions. RDH Principals Christy Love and Luc Nahrgang are heading to the US Retrofit Conference in May to share how real-world conditions shape outcomes in ways early assumptions rarely anticipate. Catch their session - 5 Things You May Not Know About Deep Retrofits, and leave with real insights you can put to work. Link in bio to register. #RetrofitUSA2026 #DeepRetrofit #BuildingScience #RDH #Sustainability #EnergyEfficiency

Oakland Tech’s sophomore engineering class put their designs to the test at a recent bridge-building competition, with sand buckets revealing which designs held up under pressure. Organized by John Bliss of SCI Consulting, the event brought students together to test their ideas in a hands-on setting.   RDH Oakland’s Balaaj Zafar and Charlotte Wren joined in on judging and testing each design. @othsconnections @hntbcorp @balaaj_zafar @charwren #buildingscience #engineering #stem #aec

Always Learn… @bourget.james @rdhbuildingscience @chba_bc ….high energy efficient wall mock-ups, key interfaces…raising the bar, making buildings better 😉

Climate action in the built environment comes from pulling multiple levers.   Our biggest impact is through the work itself. Getting the fundamentals right, reducing energy use, decisions backed by data.   This year we also entered the science-backed carbon market. And internally, we keep working to reduce our own emissions across workplace, travel, and operations. @westernuniversity @perkinswill @perkinswill_ont @perkinswill_van @cornerstonearchitectureinc @tomarbanphotography @hariripontariniarchitects @2spacephoto @lrsarchitects @papazianphoto @dykeman_design @universityofvictoria @michaelelkan @invizij @indwell.ca @pfau_long_architecture @skspartners @gensler_design @gbl_arch   #earthday2026 #climateaction #lowcarbon #sustainablebuildings #aec

We’re reducing our operational emissions, supporting high-quality carbon projects through a verified and diverse portfolio, and working with our clients to advance net zero buildings, policies, and standards. #earthday #rdhclimate2030 #ClimateAction

Meet some of our superstar admin professionals that keep people and projects moving across every office. #adminprofessionalsday #adminprofessionals #employeeappreciation #workplaceculture #teamwork #aecindustry #buildingscience