The name is less about traffic control and more about the couple's previously nomadic lifestyle.
"We've moved around a lot. Steve's brewed in ... I don't know how many states," Dyana says. "Roundabout sounded pretty good."
The couple opened Roundabout in July 2013 in the formerly industrial and now very hip suburb of Lawrenceville.
It's a short wander from the boutiques, bakeries and pubs to their unassuming corner spot, marked by a pair of iron "trees" over the door - a nod to the building's previous incarnation as an ironworks.
Roundabout was the second attempt to start their own brewery in the city - the first, a few years earlier, never came to fruition and was shelved when they moved to California to pursue other opportunities.
Family circumstances helped prompt the move back to Pittsburgh - a city Dyana says they "fell in love with".
Bottles of brew. Photo / Heather McCracken
They intended a soft opening last year with little promotion, but interest was strong from day one.
"Opening day, people queued around the block," Dyana says.
"There was an hour-and-a-half wait."
In another nod to their New Zealand connections - Steve also spent some time working at a winery in Christchurch - each beer is brewed with New Zealand and US varieties of hops.
The herbaceous New Zealand flavours work nicely with citrusy US hops, Steve says. "The two balance pretty well."
The beers are changed regularly, but a favourite is the "Ginga wheat", an alcoholic ginger beer made with fresh ginger, local honey and lemon.
On the menu when I visited was a Hy-PA, a hybrid of a pale ale and IPA, made with New Zealand Motueka hops, while the Hyer-PA features Pacific Gem and Citra hops. Trompe le Monde, a Belgian-style, high alcohol (8 per cent) beer, has flavours of coriander and honey.
And it was tough to stop at just a taste of Roundabout Stout - a smooth, chocolatey dark beer, or Irish Coffee Stout, made with vanilla and coffee from a local roastery.
A blackboard at Roundabout Brewery details the beverage options. Photo / Heather McCracken
Roundabout operates as an off-licence, or "growler" shop, where customers buy beer in refillable glass flagons - known as growlers - to take home.
It's a popular option in Pennsylvania, where liquor sales are highly regulated and most supermarkets don't sell any booze, and liquor stores only stock wine and spirits.
The brewery also has a few large tables and bar leaners, where punters can enjoy a beer and simple bar food, including cheese platters and Kiwi pies.
Those unsure which brew to take home can relax and enjoy a 'flight' for US$12, which includes a small glass each of six different beers.
Despite their efforts to import some of our favourite flavours - and a map of New Zealand on the wall - Dyana says they try to avoid too many "cutesy" Kiwi references.
Over the long, cold winter, they did offer a "New Zealand Summer Winter Warmer", which used southern summer flavours - but Dyana says most didn't understand the name - and a "No8 Wire" brew in a collaboration with another brewery who wanted a Kiwi-inspired beer.
However, the focus of Roundabout is on good quality beer, regardless of style.
CHECKLIST
Wet your whistle: The Roundabout Brewery's website has more details about the tasting room and upcoming events.
Further information: See DiscoverAmerica.com for more on visiting Pennsylvania or check out the Trip Tuner to plan your perfect USA holiday.
