construction workers installing fiber cement siding
Photo: Courtesy Matt Thompson/Thompson Construction
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Need to Know: Finish and Trim

Finish: Fiber cement has to be painted or stained. This can be done before it's installed—either by the manufacturer or by a paint shop hired by the lumberyard where you order the siding—or after it's up. Manufacturers charge about $1 per square foot and offer a 15-year warranty, but color choice is limited and you get only one coat. Paint shops provide two coats, 25-year warranties, and hundreds of hues for about $2 per square foot, not including the cost to ship your order to and from the lumberyard. On-site painters generally offer one- or two-year warranties on their work.

Trim: For minimal maintenance, use trim made of fiber cement or cellular PVC. Both are rot-proof and come in standard ¾- and 1-inch thicknesses for use as corner, frieze, and fascia boards. Crown moldings are also available. You can also use wood trim with fiber-cement siding. Wherever trim and siding meet, there should be a 1/8-inch gap, concealed with caulk.
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