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WHAT IS IT?
WHAT IS IT?
Oriented Strand Board (OSB) is a durable and versatile engineered wood product, crafted from rectangular wood strands bonded with waterproof, heat-cured adhesives. These strands are arranged in cross-oriented layers, creating a strong, stable panel suitable for various structural applications.
A key advantage of OSB is its sustainable production process. Unlike traditional lumber, OSB utilizes the entire tree, including parts that might otherwise go unused, reducing waste and promoting responsible forestry. The strands are mixed with waterproof resin and compressed under intense heat and pressure, forming robust panels tailored for diverse construction needs.
OSB is widely used in applications such as roof, wall, and floor sheathing, I-joists, and as a structural skin material for insulated panels. Its affordability, strength, and adaptability make it a preferred choice in modern construction.
MATERIAL LIFE CYCLE
KEY INFORMATION:
When specifying OSB in a design, it is essential to choose the correct type for the intended application. OSB is categorized into four main types, each suited for different applications:
OSB/1 – General-purpose panels for dry conditions, ideal for furniture and packaging.
OSB/2 – Structural panels for dry environments, commonly used in roofing, walls, and flooring.
OSB/3 – Load-bearing panels suitable for humid conditions, used in roofing, wall sheathing, flooring, and signage.
OSB/4 – High-strength, load-bearing panels designed for extreme conditions, used in sub-flooring, roofing, wall sheathing, I-beams, and structural elements.
OSB can be manufactured locally in the UK from fast-growing timber species, ensuring a sustainable supply chain.
Although OSB is not inherently fireproof, it can be chemically treated to enhance its fire and decay resistance.
Adding wax to the resin mix improves moisture resistance.
Compared to plywood, OSB offers similar performance but is more cost-effective to produce.
OSB panels provide a natural aesthetic for interior applications, offering a warm and textured appearance.
Lightweight yet strong, OSB sheets are easy to handle and install.
Challenges with using OSB
Built Examples using OSB
Samples Provided by Medite Smartply
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Written by Kudzai
Edited by Zi Enn Wong
Page updated
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