City of Seattle

Central West Headquarters Re-Roof

PW#2025-028

Open

Department

Public Works

Mark Nakagawara - Deputy Division Director

Summary

Project Description: RE-ROOF - REMOVE AND DISPOSE OF THE EXISTING BUILT-UP ROOF MEMBRANE DOWN TO THE EXISTING T&G WOOD DECKING AT HIGH ROOF AND BARREL VAULT. REMOVE AND DISPOSE OF BUILT-UP ROOF TO PLYWOOD DECK AT LOW ROOF. REMOVE AND DISPOSE OF CORRUGATED METAL SIDING AT GABLE ENDS OF VAULTED ROOF. INSTALL TAPERED POLYISOCYANURATE INSULATION, AND COVERBOARD. MECHANICALLY FASTEN THE FIRST LAYER OF INSULATION AND FULLY ADHERE THE SUBSEQUENT LAYERS. INSTALL NEW EPDM ROOF MEMBRANE AT FLAT ROOFS. INSTALL STANDING SEAM METAL ROOF AT VAULTED ROOF AND UNDERLAYMENT. RAISE PARAPET HEIGHT TO ACCOMMODATE NEW TAPERED INSULATION. INSTALL NEW SHEET METAL FLASHINGS AND PARAPET COPING. INSTALL SAFETY RAILS. INSTALL LADDERS.BID ADDITIVE NO. 1: STRUCTURAL UPGRADES. INSTALL 5/8" PLYWOOD ROOF DIAPHRAGM.Engineer's Estimate: $581,072.00 Additive #1: $137,616.00Project Location: 1403 W Howe St Seattle WA 98119

Important Dates

Release Date

7/29/2026

Q&A Deadline

8/12/2026

Proposal Deadline

9/2/2026

Contact Information

Project Contact

Fuadi Said

Capital Project Coordinator -Asst.

fuadi.said@seattle.gov

(206) 760-4044

300 Elliott Avenue West

Seattle, WA 98119

Procurement Contact

Pamela Honma

Sr. Construction Contracts Specialists

pamela.honma@seattle.gov

(206) 733-9941

700 5th Ave

Seattle, WA 98101