For flashings other than lead, what is the required extension from the pipe at the base of the flashing in inches?

The required extension from the pipe at the base of the flashing for materials that are not lead is 6 inches. This measurement ensures that there is adequate coverage and sealing around the pipe, which minimizes the risk of water infiltration. Proper flashing is critical in roofing systems to direct water away from vulnerable areas.

The 6-inch extension is a standard practice that contributes to the effectiveness of the flashing in preventing leaks. It provides enough surface area for the flashing to overlap the roofing materials adequately, thereby ensuring that any water that flows down the roof is redirected away from the pipe. This is especially important in maintaining the integrity of the roofing system and preventing damage to the underlying structures.