Videos Roof How To: Roof Sheathing Installation 4:13 Why Switch to a Raised Heel Truss? 0:38 Panel Spacing: Roof 0:22 Proper Fastening: Roof 0:40 Manage Moisture: Roof 0:52 Walls How To: Build with TallWall Wall Sheathing 3:16 How To: Build with Windstorm Wall Sheathing 4:02 How To: Install OSB Wall Sheathing or Panels 5:22 Panel Spacing: Walls 0:21 Proper Fastening: Walls 0:40 Manage Moisture: Walls 0:43 Floors How To: Install OSB Subfloor 3:48 Panel Spacing: Floors 0:52 Proper Fastening: Floors 1:36 Manage Moisture: Floors 0:57 Stairs Manage Moisture: Stairs 0:52 General APA Proper Spacing 3:25