Central West Headquarters Re-Roof

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: $137,616.00

Project Location: 1403 W Howe St Seattle WA 98119

Project Details

• Reference ID: PW#2025-028
• Department: Public Works
• Department Head: Mark Nakagawara (Deputy Division Director)

Addenda

• Addendum #1 (released 2026-07-29T21:24:58.395Z) —

  Addendum #1 updates the second pre bid meeting time to august 6th at 1:00 pm

Evaluation Criteria

• Important Instructions for Electronic Submittals —

  The City of Seattle is accepting electronic bid submissions. Bidders shall create a FREE account with OpenGov Procurement by signing up at https://procurement.opengov.com/signup. Once you have completed account registration, browse back to this page, click on "Draft Response", and follow the instructions to submit the electronic bid.

• 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: $137,616.00

  Project Location: 1403 W Howe St Seattle WA 98119

• Scope of Work or Project Details —

  Please see the Attachments section for specifications and attachments.

• Timeline —

  Release Project Date:	July 29, 2026
  Pre-Bid Site Meeting #1 ( Mandatory for Bidders to attend at least 1 of the 2 Pre-Bid Meetings):	August 5, 2026, 11:00am
  Pre-Bid Site Meeting #2 ( Mandatory for Bidders to attend at least 1 of the 2 Pre-Bid Meetings):	August 6, 2026, 1:00pm
  Question Submission Deadline:	August 11, 2026, 5:00pm
  Bid Open Date:	August 19, 2026, 2:00pm

• Project Contact —

  Fuadi Said

  Capital Project Coordinator -Asst.

  300 Elliott Avenue West

  Seattle, WA 98119

  Email: fuadi.said@seattle.gov

  Phone: (206) 760-4044

• Procurement Contact —

  Pamela Honma

  Sr. Construction Contracts Specialists

  700 5th Ave

  Seattle, WA 98101

  Email: pamela.honma@seattle.gov

  Phone: (206) 733-9941

Submission Requirements

• Proposal Submittal (required) —

  Please upload your complete proposal response excluding pricing.

  • Bidder is responsible for integrity of the file to be uploaded
  • Verification of uploaded file integrity can be confirmed by clicking on the upload file.
• Bid Forms (required) —

  Please upload a PDF of the forms provided by the Owner that must be submitted with the Bid.

  Please upload a SINGLE PDF.

  • Bidder is responsible for integrity of the file to be uploaded
  • Verification of uploaded file integrity can be confirmed by clicking on the upload file.
• Bid Guarantee (required) —

  Please upload an electronic scan of your Bid Bond or Cashier's Check. 

  • Bidder is responsible for integrity of the file to be uploaded
  • Verification of uploaded file integrity can be confirmed by clicking on the upload file.
• Will this solicitation be awarded based on Evaluation Criteria/Committee? (required)