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Exposure 1 panels are suitable for uses that are not permanently exposed to the weather, but where panels must resist effects of moisture due to construction delays or high humidity. Exposure 1 panels are made with the same exterior adhesives used in Exterior-rated panels. Read more.
Exposure 1 rated sheathings, either OSB or Plywood, have a fully waterproof bond and are designed for applications where construction delays may be expected prior to providing protection. Exposure 1 rated sheathings are made with the same exterior adhesives used in Exterior rated sheathings.
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.
9 lip 2020 · Exposure 1 panels are made with the same exterior adhesives used in Exterior-rated panels. It is recommended to protect panels from weather until they are used.
Structural I is unrelated to the bond classifications, also known as exposure durability classifications, Exposure 1 and Exterior. These two designations signify only the moisture resistance of the panel adhesive bond appropriate to its intended end use.
The Exposure 1 classification appears in both PS 1 and PS 2 product standards, while Exterior classification is only referenced in PS 1. An Exposure 1 classification means that
