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APA Rated Sheathing panels are produced as plywood or oriented strand board (OSB). Typical size is 4 ft x 8 ft, but other sizes may also be produced. Commonly square edge, but may be produced with tongue and groove edges. 2.4 Common Performance Categories And Corresponding Span Ratings Performance Category Span Rating 3/8 24/0 7/16 24/16
PS 1, Structural Plywood, establishes requirements for structural plywood. PS 2, Performance Standard for Wood-Based Structural-Use Panels, establishes requirements for structural wood-based panels such as oriented strand board (OSB), waferboard and certain types of plywood.
This online specification tool provides the core technical information you would need to help you make the right choice for your application. Just select your application (whether walls, roofs, flooring concrete formwork or even non-structural uses) and we’ll tell you which grades will be suitable and the range of other features like ...
Exposure durability classifications indicate suitability of wood structural-use panels for end-use applications. Panels qualify for one of two exposure durability classifications — Exterior or Exposure 1 — on the basis of raw material composition and adhesive bond durability.
24 lip 2019 · The standard includes single-floor span ratings of 16, 20, 24, 32 and 48 inches (406, 508, 610, 813 and 1219 mm). Face ply (if veneer) and the ply adjacent to the face (if veneer) must meet the applicable requirements of DOC PS-1 for underlayment grade.
APA Rated Sheathing panels are assessed for performance as sheathing in roofs, subfloors and walls. Panels are assigned a Span Rating, which is primarily a mea- sure of panel stiffness and strength paral- lel to the major panel strength axis (usually the long dimension).
Exposure 1 panels have a fully water-proof bond and are designed for applications where long construction delays may be expected prior to providing protection, or where high moisture conditions may be encountered in service. Exposure 1 panels are made with the same exterior adhesives used in Exterior panels. However, because other compositional
