The answer to 'how to install roof decking' is to properly install roof sheathing or decking, which is the structural layer that supports the roof covering. This typically involves securing plywood, oriented strand board (OSB), or other approved panels to the roof framing using nails or screws.
The first step is to measure the roof area and purchase the appropriate amount of decking material, ensuring it meets local building code requirements. Then, begin installing the decking at the bottom edge of the roof, working your way up. Stagger the seams between panels and secure them to the roof trusses or rafters according to the manufacturer's instructions. Finally, ensure all fasteners are properly seated and the entire surface is smooth and even.