Nonwoven joint tape having low moisture expansion properties and method for using same

A joint tape, comprising a nonwoven substrate comprising natural pulp fibers and one or both of at least about 30 wt. % or more synthetic polymeric fibers and less than about 50 wt. % but greater than 0 wt. % glass fibers,

• wherein the synthetic polymeric fibers are selected from the group consisting of polyester, polyethylene, polypropylene, nylon, polyacetate, polyacrylic, polystyrene, polyvinyl acetate, rayon, polyvinylchloride, copolymers thereof and combinations thereof,
• wherein the natural pulp fibers are wood pulp fibers,
• wherein the nonwoven substrate comprises less than about 1 wt. % but greater than 0 wt. % natural pulp fibers,
• wherein the nonwoven substrate has a thickness of about 0.012 inches or less, and has as determined according to ASTM C474-05:
• a crosswise percent expansion of less than about 1.3%
• a lengthwise percent expansion of less than about 0.2%;
• and
• a tensile strength of at least about 15 pounds-force per inch in the cross direction, and
• wherein the joint tape has a fluid permeability measured as air resistance according to TAPPI T-460 of about 6 seconds or less.