What is the maximum thickness of insulating fiberboard lath available?

The correct answer is based on the standard thicknesses available for insulating fiberboard lath. Insulating fiberboard lath is commonly used in construction for thermal and acoustical insulation. The maximum thickness typically produced for this material is 1/2 inch. This thickness allows for effective insulation while maintaining ease of handling and installation.

Thicker options like 3/4 inch and 1 inch, although they may exist in other types of insulation or building materials, are not standard for insulating fiberboard lath. The 1/4 inch option, while it may represent a thinner variant, does not meet the requirement for maximum thickness and is less common in practice when insulating larger areas. Understanding the characteristics of insulating fiberboard lath and its applications helps clarify why 1/2 inch is considered the maximum thickness in the context of this material.