Osb Flat Roof Deck

When designing a roof using smartply osb roof panels a deemed to satisfy approach may be employed using tables and design guidance for domestic roof applications given in bs 8103 3.

Osb flat roof deck.

Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. Thicknesses range from 5 16 to 3 4 inch and the proper one to use. Thickness and fixing recommendations are similar to those for plywood. Osb used for flat roof decking should be type osb 3 or osb 4 conforming to bs en 300.

Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. Suitable for use with all bauder systems wood particle board chipboard. Oriented strand board commonly referred to as osb is a type of engineered lumber similar to particle board formed by adding adhesives and then compressing layers of wood strands. With edge support and the same snow load 3 8 inch osb can be used.

Osb is widely used as roof decking material. Panel selection should be made according to the category of use given in table 1 below. Osb flat roof decks should be designed in accordance with bs 6229. A homeowner recently wrote and asked me the following regarding osb roof decking.