Review of Thickness Swell in Hardboard Siding: Effect of Processing Variables

摘要

Medium-density hardboard is used extensively as siding on residential structures.One hardboard behavior that can be measured in the laboratory is thickness swell after exposure to water. This report reviews the literature on processing variables that are known to or likely to influence thickness swell. Where the literature on hardboard is sparse, research on other wood composition materials is cited, with appropriate caveats relevant to hardboard. Initially prepared as technical guidance to the U.S. Department of Housing and Urban Development, this report should be of interest to anyone concerned about thickness swell of hardboard siding.