How to Work with fiber-cement board with This Old House

Watch this video from This Old House to learn how to work with fiber-cement board.

Steps:

1. Wrap plywood house corners with 15-pound builder's felt; secure felt with staples.

2. Hold fiber-cement board against house, flush with the corner; secure the board with galvanized nails.

3. If necessary, add another fiber-cement board to extend up to the frieze.

4. Apply silicone caulk to end joint between boards; nail board flush with corner.

5. Nail fiber-cement boards to the opposite side of the corner, keeping them flush with the previously installed boards; caulk all joints with silicone.

6. Run a bead of silicone caulk along vertical corner joint between the fiber-cement boards.

7. Nail a second layer of fiber-cement boards over the first layer.

8. Apply another caulk bead along the corner joint, then nail on a third layer of fiber-cement boards to create the desired thickness.