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Unofficial Notice of Invitation to Bid (NIB)

National City is seeking bids from qualified and interested contractors for the following project titled, MLK JR. COMMUNITY CENTER ROOF REPLACEMENT, identified under Solicitation ID: CIP No. 26-03. Work is to be performed near 140 E 12th St, National City, CA 91950, USA in San Diego County.

General Project Description

This project involves the removal and replacement of the existing modified bituminous membrane roofing system at the National City MLK Jr. Community Center. The work includes the tear-off of the existing roof to the structural plywood deck, necessary deck repairs (including plywood replacement up to 5% in the base bid), installation of a new cold-applied modified bituminous membrane roofing system (SBS base sheet using Green-Lock Plus Membrane Adhesive, SBS modified membrane with UV mineral also with Green-Lock Plus Membrane Adhesive), and surfacing with a flood coat of Green-Lock Plus Membrane Adhesive and White Rock. The scope also encompasses installation of new single cant strips, curb and wall base flashings with termination bars, new 22-gauge kynar-coated metal counterflashing, new lead jacks for penetrations, wall coatings (Tuff-Coat Sandstone on walls, Seal-A-Pore WB on CMU walls), new lead flashing detail for internal drains, duct seam taping, and conduit placement on rubber blocks. Existing coping metal and scuppers are to be reused unless damaged. Asbestos-containing parapet mastic (2% Chrysotile, 30 sq. ft.) was identified and requires removal by a licensed abatement contractor with appropriate notifications and waste disposal.

General Bid Items

  • Quantity: LS  Unit: LS  Work Item: Removal of existing modified bituminous membrane roofing system to structural plywood deck.
  • Quantity: LS  Unit: LS  Work Item: Deck Repair. Specifications: Includes 5% plywood (4’x8’ sheet, 5/8” thickness) replacement in base bid; unit pricing required for plywood beyond 5%.
  • Quantity: LS  Unit: LS  Work Item: Mechanically attach HPR Glasbase base sheet. Specifications: Per manufacturer’s approved fastening patterns.
  • Quantity: LS  Unit: LS  Work Item: Install SBS modified base sheet – StressBase 80 Plus. Specifications: Cold-process application using Green-Lock Plus Membrane Adhesive at 2.0-2.5 gal per sq.
  • Quantity: LS  Unit: LS  Work Item: Install SBS modified membrane with UV mineral – StressPly FR Mineral P-80. Specifications: Cold-process application using Green-Lock Plus Membrane Adhesive at 2.0-2.5 gal per sq.
  • Quantity: 200  Unit: SF  Work Item: Flood coat application around drains and scupper locations. Specifications: Green-Lock Plus Membrane Adhesive at 5 gal per sq, with WPG 3/8” White Rock fully embedded at 400 lbs per sq.
  • Quantity: LS  Unit: LS  Work Item: Install new single cant strip at all curb/wall details.
  • Quantity: LS  Unit: LS  Work Item: Apply SBS modified base flashing ply – StressBase 80 Plus. Specifications: Cold process adhesive – Green-Lock Plus Flashing Adhesive at 2.5 to 3 gal per sq, extending 6” onto the field.
  • Quantity: LS  Unit: LS  Work Item: Overlap SBS modified flashing cap ply – StressPly FR Mineral P-80. Specifications: Cold process adhesive – Green-Lock Plus Flashing Adhesive at 2.5 to 3 gal per sq, extending 9” onto the field. Total coverage of 5.0-6.0 gal per sq. for Green-Lock Plus Flashing Adhesive in all flashing areas.
  • Quantity: LS  Unit: LS  Work Item: Secure all flashing plies. Specifications: Termination bar and fastened every 6” O.C. Caulk above termination bar with urethane sealant – Tuff-Stuff MS True White.
  • Quantity: LS  Unit: LS  Work Item: Coping Metal. Specifications: Re-use existing metal, remove existing sealant, caulk all joints with Tuff-Stuff MS True White.
  • Quantity: LS  Unit: LS  Work Item: Install new Counterflashing. Specifications: 22 ga kynar coated metal at all existing locations, fabricated from R-Mer SS Flat Stock.
  • Quantity: LS  Unit: LS  Work Item: Scuppers. Specifications: Re-use existing metal, replace damaged ones with new to match existing profile, fabricated from R-Mer SS Flat Stock.
  • Quantity: LS  Unit: LS  Work Item: Install new lead jacks over finished roof system at Pipe, Solar, Vent & Fan Penetrations. Specifications: Prime lead with Garla-Prime VOC and strip in with 8” StressPly FR Mineral P-80 flashing ply set in Green-Lock Plus Flashing Adhesive.
  • Quantity: LS  Unit: LS  Work Item: Coat walls. Specifications: Tuff-Stuff MS True White (1/16") with Tuff-Coat Sandstone at 2 gal per sq, applied in two passes at 1 gal per sq each. Masking tape required to protect new sheet metal and finished surfaces.
  • Quantity: LS  Unit: LS  Work Item: Clean CMU walls and repair mortar cracks. Specifications: Apply new Seal-A-Pore WB at 1 gal per sq, two passes at 1 gal per sq each. Masking tape required to protect new sheet metal and finished surfaces.
  • Quantity: LS  Unit: LS  Work Item: Install new lead flashing detail for Internal Drains. Specifications: Three-course corners with Green-Lock Plus Flashing Adhesive and GarMesh 6” fabric. Secure clamping ring and bolts.
  • Quantity: LS  Unit: LS  Work Item: Apply UniBond ST 4” tape to all duct seams. Specifications: Coat tape with Cool-Sil HB White at 2 gal per sq until fully saturated.
  • Quantity: LS  Unit: LS  Work Item: Place all conduit. Specifications: On rubber blocks.
  • Quantity: LS  Unit: LS  Work Item: Abatement and disposal of parapet mastic containing 2% Chrysotile asbestos (approx. 30 sq. ft.). Specifications: To be performed by a licensed abatement contractor in accordance with SCAQMD Rule 1403 and CAL/OSHA 1529 and 5208.

NAICS Classification

NAICS 238160 – Roofing Contractors (Installation, repair, and replacement of roofing systems, including modified bituminous membrane roofing, flashing, and related accessories)., NAICS 238310 – Drywall and Insulation Contractors (Installation of insulation board, and potential deck repair involving carpentry)., NAICS 238320 – Painting and Wall Covering Contractors (Application of wall coatings such as Tuff-Coat Sandstone and Seal-A-Pore WB on building and CMU walls)., NAICS 238390 – Other Building Finishing Contractors (Installation of sheet metal flashing and trim, as well as lead jacks for roof penetrations)., NAICS 562211 – Hazardous Waste Treatment and Disposal (Handling and disposal of asbestos-containing mastic found in parapet areas).

Records and Due Date

This bid opportunity was entered into BidAmerica on February 16, 2026, and was last updated on February 16, 2026. All bids and/or proposals are due on February 26, 2026.

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Legal Disclaimer

All bidders are responsible for reviewing and verifying all official bid documentation directly from the issuing agency. BidAmerica aggregates public bid information for advertisement purposes for contractors and government agencies convenience. This Notice of Invitation to Bid is for reference purposes only and is not an official or complete representation of any documents issued by National City. BidAmerica does not guarantee the accuracy, completeness, or timeliness of any information displayed and shall not be held liable for any errors, omissions, misinterpretations, or damages resulting from reliance on this summary. Contractors must obtain all official information—including plans, specifications, addenda, deadlines, submission requirements, qualifications, and bidding conditions—directly from National City prior to bidding.

MLK JR. COMMUNITY CENTER ROOF REPLACEMENT - Bid Opportunity | BidAmerica