HardiePlank is an extremely recognizable example of fiber cement siding; James Hardie brought the technology to market in the 1990s. But other products, like Allura Lap siding and GAF WeatherSide ...

Fiberglass cement siding is a composite made of Portland cement, silica and wood fiber. Once painted ... Now they’ll sit about 1/8 in. above the lap siding. Cut the frieze board to length.