Barr with his wife Sue
This copper roof shows uneven weathering, which is the result of a strippable film put on the copper before its installation.
Photo courtesy of Revere Copper Products Inc., Rome, N.Y.
This copper roof exhibits oil canning.
Sika Sarnafil recycled the torn-off membrane and trimmings, cuttings and waste material from the new membrane.
Photo courtesy of Nations Roof LLC, Yonkers, N.Y.
Nations Roof reflashed the roof's 850 skylights.