Metal-Flashing,-Round-to-Square.pdf

This is a technical drawing specification document related to a Middle School Roof Replacement project in Michigan. The drawing, designated as Drawing No. 20, provides detailed specifications for a built-up roofing (BUR) system with a two-piece, soldered-in-field round-to-square metal flashing detail. The specification illustrates the complete assembly of the roof penetration system, including a fabricated round-to-square sheet metal component with a clamped storm collar, Tremco sealant bead, treated wood blocking, insulation, cant strip, existing wood curb, BUR membrane, and connection to the existing round roof penetration. The drawing is presented at a not-to-scale (NTS) format and appears to be part of a comprehensive roofing construction specification set dated 2023.

This technical specification establishes the material requirements and installation standards for roof penetration flashing as part of the broader roof replacement project. The drawing serves as a contractual reference document that bidders and contractors must follow to ensure compliance with the project's roofing system standards. No specific pricing, quantities, timeline information, or award details are contained within this technical drawing; rather, it functions as a construction standard that would be incorporated into bid documents and contract specifications for the roof replacement work.