Mary Barensfeld grew up in a colonial-style home near Pittsburgh that was built by her grandfather and enlarged by her parents. In 2016, she and fellow architect Yvonne Riggie added a pair of rustic modern wings. One, a dining pavilion, includes a lounge that is warmed by a Bodart & Gonay woodstove. The entire room opens to the outdoors through a folding wall system by Hope’s Windows.