TinnerFlow™1st YearDuct AssemblyYELLOW · Check First
Use a dedicated TDC corner tool or a drift pin (alignment punch) to align the corner bolt holes perfectly before inserting the bolt. * Never try to smash a misaligned corner home using a framing hammer-you will bend the gasket seal area, creating a permanent high-pressure air leak.
Use a dedicated TDC corner tool or a drift pin (alignment punch) to align the corner bolt holes perfectly before inserting the bolt. * Never try to smash a misaligned corner home using a framing hammer-you will bend the gasket seal area, creating a permanent high-pressure air leak.
Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.