IE035-CCRHS-Roof_Planes_for_Repair_with_details_and_specs_1.pdf

This document is a technical specification for a federal roofing project consisting of two sections: Section 070150.19 (Preparation for Re-Roofing) and Section 075419 (Polyvinyl-Chloride Roofing - Mule-Hide).

The re-roofing project involves the replacement of existing roofing systems at a school building (membrane system) and quarters buildings (asphalt shingle) across 20,140 ± square feet distributed across eight different roof planes (6, 14, 15, 17, 18, 22, 24, and 25), plus removal and replacement of 250 ± linear feet of ridge vents and modification of 24 scuppers across nine roof planes (2, 3, 4, 8, 10, 11, 12, 19, and 20). The preparation work requires removal of existing roofing materials, flashing, counterflashings, and insulation vents, with specific protocols for different building types. The installation phase mandates a preinstallation meeting one week prior to work commencement, coordination with mechanical and electrical trades, daily manufacturer's representative attendance, and adherence to weather-dependent installation restrictions. The new roofing system shall be a PVC (Polyvinyl-Chloride) fully-adhered assembly with polyisocyanurate (ISO) insulation at a minimum R-6 value, high-density wood fiberboard overlay boards, and manufacturer-specified flashing systems including coated metal and square pipe wrap flashings. Quality assurance requirements specify minimum three years of documented experience for both materials removal and installation contractors. The warranty requirement includes a 20-year manufacturer premium system warranty for labor and materials, with a 2-year extended correction period from substantial completion. All work must comply with ASTM standards (C208, C1289, D4434/D4434M) and NRCA Roofing Manual 2023 requirements.