What is 48 24 rated sheathing?
23/32″ – 48″ x 96″ – 48/24 Span Rating. Description: APA Rated Sheathing panels (Southern Yellow Pine Rated Sheathing, Southern Yellow Pine Rated Sheathing Panels / Softwood Plywood) are not manufactured with smoothness or appearance in mind, but offer strength suitable for most industrial applications.
Is APA rated sheathing structural 1?
APA Rated Sheathing may be produced as Structural I Sheathing, which provides enhanced racking and cross- panel strength properties for certain demanding applications such as designed shear walls, diaphragms, and panelized roofs.
What is fire rated plywood?
Fire treated plywood is specially treated with chemicals that provide a physical barrier to flame spread. Certain plywoods are also graded “Exterior” which gives it both a fire retardant rating and a treatment to prevent the fire retardant chemicals from leaching out in wet conditions.
Is sheathing plywood exterior grade?
CDX is the most common exterior plywood grade. Oriented strand board (OSB) is an engineered plywood substitute that many builders use for sheathing and roof decking. It’s constructed with waterproof glue and performs best when only semi-exposed to the elements, as it is when covered with siding or roofing.
Where should a plywood panel marked exposure 1?
Exposure 1 panels may be used for applications where construction delays may be expected prior to providing protection or where exposure to the outdoors is on the underside only.
What is exposure 1 rated plywood?
Use exterior rated plywood for permanent outdoor structures that will be exposed to water long-term. Exposure 1 means the panels have been waterproofed and can withstand exposure to the elements during construction. However, they are not suitable for long-term exposure post-construction.
What is the span rating of plywood?
What is span rating for plywood? The span rating provides a measure of the strength and stiffness in the direction parallel to the grain of the face and back veneers of the panel. The span rating on SHEATHING SPAN panels appears as two numbers separated by a slash (e.g., 32/16 or 48/24). Click to see full answer.
Is APA plywood fire rated?
Plywood is not a fire rated product. If someone says “fire rated plywood,” they probably are referring to the product known as FRT plywood. When treated in accordance with AWPA Standard U1, FRT plywood qualifies for a lower flame spread rating—at least as low as gypsum wallboard—and has a reduced fire hazard classification.
What are the grades of plywood?
Plywood Grades. We carry four grades of plywood: A, B, C and D. The grade refers to the quality and appearance of the plywood’s face and back veneers. A has the highest quality and is the most expensive, and D is the least expensive. A-grade plywood features a smooth, sanded surface without knots.