More than a million roofs have been built over the heads of Toronto homebuyers by the Silverberg brothers since they teamed up in 1951. Their firm Dominion Sheet Metal and Roofing has been active in North York for 75 years. Receiving a plaque from Toronto Councillor David Shiner are, from left, Harry Silverberg,his uncle Sid and his father, Al. Sid and Al were also recently inducted into the Home Builders Hall of Fame.