'Everybody wants this to be a solution for all the other problems with
siding,' Huelman said.
But, like other siding products, cement-based materials must be installed
and finished properly; otherwise they won't protect houses against moisture
intrusion.
Are these products more durable than wood or vinyl? Not necessarily,
he said. 'Inherently it might be, but it depends on the application,'
he said.
While cement products are more impervious to moisture because the wood-fiber
ratio is smaller than in wood siding, water still can be a problem,
he said.
Correct installation includes properly protecting the house sheathing
underneath the siding. Improperly installed siding traps moisture and
causes sheathing and structural members to mold and rot.
— Jim Buchta, "Fiber-cement siding products gain popularity", www.startribune.com
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