Specifications include, but are not limited to: In general the work consists of Remove approximately 17,000 square feet of roof material including 1 insulation. Install new flat roof system to be fully adhered Ethylene-Propylene-Diene-Monomer (EPDM) 2 membrane, 60 mils thick with low rise foam adhering polyisocyanurate insulation over existing tectum 3 4 deck. The complete system shall have an average R-value of R-25 with a base layer of 2”. Replace roof drains. Provide new flashing, pipe boots, counter-flashing, gutters (where applicable) downspouts and other 5 roof accessories as required to achieve manufacturers 20-year No-Dollar-Limit warranty. In 2007 the 55-6 year-old roof was replaced by removal and replacement of the existing wet areas within the system, 7 increasing the R-value and applying a silicone membrane over the insulation to achieve an R-value of 21. 8 Essentially a silicone over spray foam fix that was designed to extend the life of the existing roofing system 9 10 at the time. This project is being requested to preempt failure of the roof and avoid catastrophic failure.
