Kerabit OSB-board is oriented strand board for designed roofs.
It can be used as a substrate for all roofing materials. This product meets additional apa performance standard structural tests.The product is specifically engineered to perform in applications that require superior cross-panel strength, racking strength or shear resistance in such places as panelized roofs.
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Roof loads and span ratings
15 mm thick Kerabit OSB-board can be used with maximum support spacing (center-to-center) of 1 metre.
Installation
Apply the strength axis perpendicular to the supports. All panels should be continuous over two or more spans; all end joints must be staggered and lie over supports. Fasteners shall be located a minimum 9,5 mm from panel edges.
Leave 3 mm gap at all panel ends and edges to allow movement due to climatic changes, preventing roof panel ridging.
Install roof sheathing with the textured side up and use extreme caution when working on sloping roofs. Stand over trusses or rafters when nailing.
Nail spacing should be no more than 150 mm on center along panel edges and 300 mm on center along intermediate supports.
All fasteners must penetrate a minimum of 25 mm into structural supports and be with nail head flush with panel surface.
Ensure adequate ventilation as specified in the appropriate building code.