siding is resistant to rain, hail, snow, salt air and damage from insects
such as termites and carpenter ants. Some manufacturers, including James
Hardie, guarantee the siding for 50 years against rotting, splitting, delaminating,
warping, buckling and swelling.
It's also not supposed to burn, either.
Pat Huelman, cold climate housing coordinator at the University of Minnesota, said cement-siding products offer great promise in terms of durability, but they're not completely immune to problems.
Moisture is the biggest foe.
Jim Buchta, "Fiber-cement siding products gain popularity", www.startribune.com