Roof-Drain-with-Gravel-Guard.pdf

This is a technical drawing specification document (DWG No. 37) for a built-up roofing (BUR) hot/cold roof drain assembly with gravel guard. The drawing provides detailed construction specifications for a roof drain system that measures 24 inches square and includes multiple component layers: a gravel retainer, two-ply stripping, specified insulation, lead or metal flashing, gravel surfacing, a deck clamp, strainer/dome, clamping ring, and specified membrane sheeting. The document includes a critical note requiring that all metal surfaces intended to come into contact with adhesives must be primed prior to installation. The drawing is presented at a not-to-scale (NTS) notation and appears to be part of a 2023 specification set, though no specific project timeline, response deadlines, or bid submission dates are included in this technical documentation.

No pricing terms, set-asides, incumbent contractor information, funding sources, or contract award details are contained within this technical drawing specification. The document functions solely as a construction detail reference for contractors and design professionals executing roofing work, providing standardized specifications for proper roof drain installation methodology.