Exterior paint costs in Madison

A federal lab that studies how paint behaves on wood sits right in Madison. The U.S. Forest Products Laboratory has studied finishes for outdoor wood since the 1920s. Its history describes early research that ranked how well wood takes paint by species, surface texture and ring direction, and later work on why paint cracks, peels and grows mildew.

Madison's older houses add their own prep. Nearly half the city's homes predate 1980, and about one in eight was built before 1940. If your house predates 1978, the scraping and sanding fall under lead-safe rules, so expect plastic on the ground and a careful cleanup each day.

The lab's work is useful on your own siding. A Purdue bulletin written with a Forest Products Laboratory scientist says paint holds poorly on woods with wide bands of dense summerwood, such as southern yellow pine, and better on cedar and redwood. If your paint keeps failing in stripes along the grain, the wood itself may be part of the reason, and a painter may suggest a different primer or a stain instead.