Expansion_Joints_RFP_Final.pdf

RFP for DESIGN/BUILD EXTERIOR EXPANSION JOINT REPLACEMENT AND FAÇADE RESTORATION SERVICES

BID #XX

P a g e 1 | 35

DESIGN/BUILD EXTERIOR EXPANSION JOINT REPLACEMENT AND FAÇADE

RESTORATION SERVICES

REQUEST FOR PROPOSAL (RFP)

BID #25-S-040

The Washington Convention and Sports Authority t/a Events DC is soliciting proposals from qualified contractors to provide Design/Build Exterior Expansion Joint Replacement and Façade Restoration Services at the Walter E. Washington Convention Center.

This Request for Proposal (“RFP”) has a thirty-five percent (35%) set-aside for a Certified Business Enterprise (CBE) as required under the provisions of “The Small and Certified Business Enterprise Development and Assistance Amendment Act of 2014” (the “Act”), effective June 10, 2014.

Interested parties can view a copy of the RFP by accessing Event DC’s e-Procurement website at https://eventsdc.com/about/procurement.

Key Dates

RFP Release Date: Friday, April 10, 2026

RFP Pre-Proposal Conference: Wednesday, April 22, 2026, 11:00AM, EST

RFP Questions Due Date: Friday, April 24, 2026, 3:00PM, EST

RFP Response Due Date: Monday, May 11, 2026, 3:00PM, EST

Primary Contact

Name: Gerald Green Deputy Director, Office of Contracts and Procurement Services Email: ggreen@eventsdc.com Phone: (202) 249-3028 https://eventsdc.com/about/procurement mailto:ggreen@eventsdc.com

P a g e 2 | 35

TABLE OF CONTENTS

Section A – Introduction……….…………..……………………….……………………

Section B – General Information………………….……………….……………………….5

Section C – Scope of Work………………………………………………………………….7

Section D – Contract Term, Deliverables and Performance…………......…….……….17

Section E – Specific Contract Terms and Conditions………………...………………

Section F – Special Contract Requirements…………………….…....…………………..24

Section G – Contract Clauses…………......………………………………...……….……25

Section H – Submission Instructions………...……….….……….…………………...…26

Section I – Technical Proposal…………………..…………………………………...…..29

Section J – Cost Proposal……………..….………………………………………….……32

Section K – Evaluation Factors………………...……….……….……………………….33

Section L – List of Attachments…………………………………………………………..35

P a g e 3 | 35

SECTION A – INTRODUCTION

A.1 The Washington Convention and Sports Authority t/a Events DC (“Events DC”) is an independent authority of the District of Columbia (“District”) Government and operates as a corporate body with a legal existence separate from the District. Events DC is governed by a twelve (12) member Board of Directors appointed in accordance with D.C. Code § 1-

1202.05. The organization’s day-to-day operations are managed by its President and Chief Executive Officer.

A.2 Events DC is responsible for promoting, developing, and maintaining the District as a location for conventions, trade shows, meetings, concerts, sporting and entertainment events, and other special events. In that regard, it owns, manages and/or operates the Walter E. Washington Convention Center (the “Convention Center”), the Carnegie Library at Mt. Vernon Square, Robert F. Kennedy Memorial Stadium and its surrounding campus (which includes the Festival Grounds, the Fields at RFK Campus, and Skate Park), the non-military portions of the District of Columbia Armory, Gateway DC, the R.I.S.E. Demonstration Center, Nationals Park, and CareFirst Arena (each a “Facility”; collectively, the “Facilities”).

A.3 The Convention Center is a 2.3 million square foot convention and meeting facility that includes seven hundred and three thousand (703,000) square feet of exhibit space, a total of seventy-seven (77) break-out rooms and the largest ballroom in the Mid-Atlantic Region. The Convention Center has five (5) vertical levels [two (2) of which are under-grade], and spans three (3) city blocks. The levels above-grade are divided into three (3) separate buildings connected by bridges across L and M Streets. The Convention Center hosts approximately two hundred (200) events per year with an average annual attendance figure of 1.2 million people.

A.4 The design–build project for the combined exterior expansion joint replacement and façade restoration program (the “Project”) is a multi-year capital improvement initiative (2026-2028) focused on restoring critical building envelope and structural components at the Convention Center. The Project integrates two (2) major restoration efforts, exterior expansion joint replacement and comprehensive façade rehabilitation, to extend the Facility’s service life, enhance safety and performance, and preserve the building’s aesthetic integrity. The at-grade sidewalks and elevated south entry plaza at the Convention Center consist of materials over an insulated, hot rubberized asphalt membrane installed in a plaza application. The membrane, as specified in the original construction drawings, typically has an expected useful life of 25–30 years. The expansion joint systems were detailed as part of the original waterproofing system. In a 2016 and 2024 Facility Assessment Report, they evaluated the condition of the expansion joints and researched the original installation. From that research, they determined that the waterproofing system is a Henry membrane product and utilizes the Situra expansion joint technology.

A.5 Many repairs have been made over the years, patchworking sectional repairs to the old remaining joints. This has been successful due to the older joints still being functional;

however, after nearly twenty-five (25) years of service, these joints are no longer viable and need to be completely replaced. Additionally, the vertical wall sealants are also at the end of their expected useful service lives and require replacement. These flexible sealant joints exist at the metal panels, precast concrete, masonry, stone, and glazing interfaces on all elevations

P a g e 4 | 35 of the Facility. In addition to the deteriorated sealant joints, numerous upgrades are needed at the masonry, stone, and precast façades to maintain watertight integrity of the façade and prevent overhead hazards from developing.

A.6 This Project will entail design development, development of elevation and site/plaza plan drawings, permitting, site preparation and demolition, primary joint installation and membrane applications, exterior cleaning, wet glazing, precast stone patching and crack repairs, selective repointing, exterior insulated finish system (EIFS) repairs, resetting displaced site paving and waterproofing testing.

A.7 Events DC is seeking a qualified contractor (the “Contractor”) to provide Design/Build

Exterior Expansion Joint Replacement and Façade Restoration Services (the “Services” or “Work”) at the Convention Center.

A.8 Events DC intends to award a Firm-Fixed Price contract (the “Contract”) for the Services.

[End of Section A]

P a g e 5 | 35

SECTION B – GENERAL INFORMATION

B.1 GENERAL DESCRIPTION OF WORK

(a) Events DC seeks an experienced Contractor to provide the Services at the Convention Center to include but not limited to:

1. Schematic and concept design;

2. Permitting, phasing and protection plans;

3. Preparation and demolition;

4. Waterproofing and joint installation;

5. Vertical and overhead expansion joint removal and surface preparation;

6. Exterior cleaning, steel painting, wet glazing, precast patching and crack repairs, repointing, exterior insulated finish system (EIFS) repairs, and resetting displaced site paving;

7. Testing and protection; and

8. Restoration and site clean-up.

(b) The Contractor(s) will conduct all Work under the direction of Events DC’s designated on-site representative, the Contracting Officer’s Technical Representative (“COTR”). Contact information for the COTR will be provided at the time of Contract award.

(c) Events DC contemplates awarding a Firm-Fixed Price contract for the Work detailed in Section C below. The base term of the Contract will be from date of award to September 30, 2028, with four (4), one-year option years (each an “Option,” collectively, the “Option Years”).

(d) Vendors wishing to respond to this RFP (“Offerors”) must register in the Events DC e- Procurement system. Reponses must be submitted electronically. An Offeror’s response must include two (2) separate submissions: a “Technical Proposal” and a “Cost Proposal”, as outlined in Sections I and J respectively below.

B.2 CONTRACTOR QUALIFICATIONS

To be considered for award of the Contract, the Contractor must:

(a) Demonstrate a minimum of fifteen (15) years of similar exterior expansion joint replacement and façade restoration Work with a proven track record of successful relevant experience;

(b) Provide a qualified team with a minimum of ten (10) years experience in design and engineering, project management, and specialized experience in waterproofing, structural repair and large-scale replacement of plaza-level expansion joints and vertical and horizontal sealants joints;

(c) Demonstrate experience of Work identified in Sections C.1.1 through C.1.16 below with a variety of relevant projects and utilizing Sika Emseal systems to provide watertight, airtight and fire-rated expansion joint systems engineered for high-performance building envelopes;

(d) Provide/possess installer certification by Sika Emseal of the specific joint system;

(e) Demonstration of proper joint sizing to accommodate structural movement (translation/rotation) and familiarity with materials required for the Work;

(f) Demonstration to perform necessary substrate preparation, including concrete cleaning, joint header demolition and repair;

P a g e 6 | 35

(g) Demonstration of expertise slab-edge preparation, joint sizing, and integration with adjacent membranes;

(h) Must be an active and participating member of the Sealant Water Restoration Institute;

(i) Perform a services including permits in conformance with applicable federal, state and District laws, codes and regulations; and

(j) Be bonded and licensed to do business in the District.

B.3 PRE-PROPOSAL CONFERENCE/SITE VISIT

(a) An optional Pre-Proposal Conference/Site Visit (the “Site Visit”) is scheduled for 11:00AM, EST, Wednesday, April 22, 2026, for all prospective Offerors. Notification of intent to attend must be provided via e-mail to Gerald Green, Deputy Director, Office of Contracts and Procurement at ggreen@eventsdc.com no later than 3:00PM, EST, Tuesday, April 21, 2026.

(b) Prospective Bidders shall meet at the Walter E. Washington Convention Center, Office of Contracts and Procurement, 801 Allen Y. Lew Place, NW, Washington, DC, 20001. The number of individuals representing each prospective Bidder is limited to three (3).

(c) The purpose of the Site Visit is to walk potential Bidders through the Facilities, and to provide an opportunity for informal questions and answers. If a prospective Bidder desires a binding answer to any question asked and answered informally at the Site Visit, the questions must be submitted in writing through the e-Procurement system at https://eventsdc.com/about/procurement.

B.4 QUESTIONS

(a) If a prospective Offeror has any questions relative to this RFP, the Offeror shall submit the questions in the e-Procurement system via the “Q&A” tab of the Bid to receive a binding answer. Any question asked and answered outside of the e-Procurement system will be considered informal and non-binding.

(b) Questions shall be received no later than Friday, April 24, 2026, 3:00PM, EST. Events DC will not consider any questions received after this date.

(c) Events DC will furnish responses promptly to the requesting prospective Offeror and to other prospective Offerors if deemed by Events DC to be necessary to prepare a complete and accurate proposal, or if the lack of a copy of the response would be prejudicial to any other prospective Offeror.

[End of Section B] mailto:ggreen@eventsdc.com https://eventsdc.com/about/procurement

P a g e 7 | 35

SECTION C – SCOPE OF WORK

C.1 GENERAL REQUIREMENTS

Events DC seeks a Contractor to provide the Services at the Convention Center. The Contractor will design, build, exterior expansion joint replacement and façade restoration throughout the Convention Center. The Contractor must be able to perform all of the tasks listed in Sections C.1.1 through C.1.7 below. The Work performed by the Contractor shall include, but is not limited to, the following:

C.1.1. SCOPE OF WORK

(a) The Contractor shall provide all labor, supervision, tools, materials and equipment necessary in accordance with the specifications and industry standards in a professional and orderly manner.

(b) The Contractor shall be expected to perform the Work as specified herein and with consideration for all aspects of the Project, including, but not limited to design, permits and licenses, subcontractor performance and scheduling, Request for Information, substitution/change request, existing conditions, materials and trade specifications, safety and public access, on-site inspections, restoration and site cleanup, storage and removal of construction materials, close out submittals, testing and protection, and finishing and detailing.

(c) The Contractor shall conduct the construction in phased zones, maintaining safe pedestrian circulation, ADA compliance, and continuous access to the building and public areas throughout all stages of Work.

(d) The Contractor shall be responsible for all providing all hoisting, scaffolding, and rigging required for the Work.

(e) The Facility will be fully operational during the Project. The Contractor will coordinate the Work with the COTR to accommodate the Work to limit disruption. A construction schedule will be coordinated between the Contractor and the COTR.

(f) For the Project close-out, the Contractor shall work with the COTR on correction punch list. The Contractor must accompany the COTR on a preliminary inspection to determine items to be listed for completion or correction. A punch list must be completed prior to close-out. Close-out submittals shall include at a minimum project record documents, operation and maintenance data and manuals, warranties, and other types of documentation as requested by the COTR.

C.1.2 PHASE 1 - DESIGN

(a) The Contractor shall be responsible for the assessment of the Facility to develop permittable drawings for the Work and coordination with the District Department of Transportation (DDOT) regarding the interface of the Convention Center work with roadway expansion joints.

P a g e 8 | 35

(b) Existing expansion joint drawings are included in the List of Attachments (Section L).

(c) The Contractor must field verify all existing dimensions and site conditions to include movement and load analysis.

(d) The Contractor shall provide a full set of permittable construction documents for the Work to include the development of Maintenance of Traffic (MOT) plans, schematic and concept design, permitting, phasing and protection plans Schematic drawings shall be reviewed at fifty percent (50%) design, progress drawings shall be reviewed at seventy-five percent (75%) design and again at one hundred percent (100%) design.

(e) The Contractor shall provide a project schedule for all phases of work, including demolition, delivery, installation and cleanup.

(f) The Contractor shall be responsible for all necessary permits from authorities, plus a detailed safety plan covering site-specific protocols, training and safety measures.

C.1.3 PHASE 2 – PLAZA LEVEL EXPANSION JOINTS AND WATERPROOFING

The Contractor shall be responsible for the following:

(a) Preparation and Demolition:

1. Site Safety: Install and secure barrier wall sections at the specific joint work areas.

2. Salvage and Storage: Carefully remove, label, and store existing brick pavers, granite pavers and wall panels for reinstallation following the new expansion joint assembly.

3. Removal: Demolish the topping slab to expose the existing waterproofing membrane.

Systematically remove the defective expansion joint assembly, waterproofing membrane, and flashing to expose the structural concrete deck.

4. Tie-in Preparation: Leave the existing membrane intact on either side of the joint to ensure a proper tie-in for the new system.

5. Substrate Preparation: Thoroughly clean and inspect the concrete structural slab to ensure the substrate is suitable for the new waterproofing application.

6. Temporary Weather Protection: Install and maintain temporary weather protection to safeguard exposed building elements and interior spaces during periods when the permanent waterproofing system is breached.

(b) Waterproofing and Joint Installation:

1. Primary Joint Installation: Install the Emseal-Roof Joint, assembly in the structural slab opening per manufacturer’s specifications, ensuring a seamless tie-in with the existing membrane.

2. Membrane Application: Apply a monolithic coating of Elasto-Seal 790-11, rubberized asphalt (90 mil minimum), embed polyester fabric reinforcement, and apply a second monolithic coat (125 mil minimum). Install new waterproofing flashing up the wall (minimum of 8”) with mechanical terminations. Embed a separator sheet into the hot membrane with a 2” minimum overlap.

P a g e 9 | 35

(c) Testing and Protection:

1. Flood Testing: Perform a water test on the installed joints to verify water tightness.

2. Protection Layers: Upon successful testing, installed protection board over the joint and drainage board over the protection layer prior to concrete placement.

(d) Restoration and Site Clean-Up:

1. Concrete Replacement: Form and pour a new 3,500 PSI concrete topping slab to match existing thickness, elevation, and finish. Concrete curb to be colored “DC Black”.

2. Secondary Systems: Install the Emseal – SJS Seismic Joint System, according to the technical data sheets. The SJS cover plate shall be 3/8” stainless steel.

3. Surface Restoration: Reset salvaged pavers in a Portland Cement/sand setting bed, matching the original bonding and coursing patterns.

4. Wall Reinstallation: Reinstall wall panels using new stainless-steel anchors, maintaining original alignment.

5. Final Cleaning: Clean the work area and proper dispose of all project related debris.

C.1.4 PHASE 3 – VERTICAL AND OVERHEAD EXPANSION JOINTS

(a) Removal and Surface Preparation:

1. Systematically remove the existing, deteriorated expansion joint and backer material from the vertical expansion joints.

2. Substrate Cleaning: Use mechanical grinding or wire brushing to remove all traces of old joint dirt or contaminants from the joint substrates (curtain wall, metal panels, precast concrete, masonry or stone).

3. Solvent Wipe: Perform a final wipe of the joint faces using an approved solvent to ensure a clean, dry, and sound surface for optimal adhesion.

4. Inspection: Verify that the joint gap is uniform and that the substrate is free of spalls or defects that could compromise the new seal.

(b) Installation of Emseal Seismic Colorseal:

1. Sizing and Compression: Select the appropriate factory pre-compressed Seismic Colorseal, size based on the mean temperature and measured joint opening.

2. Adhesive Application: Apply a thin layer of Emseal epoxy adhesive to the cleaned joint faces per manufacturer specifications.

3. Joint Insertion: Recess the Seismic Colorseal foam into the joint, ensuring the silicone bellows face outward and slightly recessed from the substrate surface to protect against physical damage.

4. Joining Segments: Utilize the manufacturer’s “miter” or “butt-joint” methods for transitions and joints, applying beaded silicone to the foam interfaces to ensure a continuous, monolithic steal.

(c) Finishing and Detailing:

1. Silicone Fillet: Apply a final “corner bead” of matching silicone sealant at the interface between Colorseal bellows and the substrate to provide a clean, aesthetic finish and redundant waterproofing.

2. Clean-Up: Remove any excess epoxy or silicone from the surrounding façade panels and dispose of all debris.

P a g e 10 | 35

C.1.5 PHASE 4 – VERTICAL AND HORIZONTAL SEALANT JOINTS

(a) Testing:

1. Adhesion Mock-up and Testing: Prior to full-scale sealant application, perform field adhesion testing (e.g., ASTM C1521 Standard Practice) on each representative substrate, including but not limited to concrete, granite and metal.

2. Manufacturer Verification: Submit results of field pull-tests to the sealant manufacturer for review. If required by the manufacturer, apply substrate specific primers to achieve optimal binding and prevent adhesive failure.

(b) Removal and Substrate Preparation:

1. Sealant Extraction: Systematically remove existing, failed sealant and backer material from all identified joints. Care must be taken to avoid damaging the edges of the adjacent substrates (metal panels, masonry or stone).

2. Mechanical Cleaning: Clean the joint faces via mechanical grinding, wire brushing, or abrasive pads to remove all traces of old sealant, oxidation, and contaminants.

3. Solvent Wipe: Perform a “two-cloth” solvent wipe using an approved cleaner to ensure a chemically clean surface.

4. Inspection: Verify that the joint is clean, dry, and sound. Any defects in the substrate must be repaired before proceeding.

(c) Installation of New Materials:

1. Backer Rod Installation: Install a new, closed cell, non-gassing polyethylene backer rod into the joint. The rod should be sized approximately twenty-five (25%) larger than the joint width to provide a firm friction fit and establish the proper sealant depth (typically a 2:1 width-to-depth ratio).

2. Bond Breaker Tape: In shallow joints where a backer rod cannot be used, apply bond-breaker tape to the rear of the joint to prevent three-sided adhesion and allow for proper movement.

3. Priming: Apply manufacturer recommended primer to porous surfaces (masonry or precast) or specific metal finishes as required to ensure maximum adhesion.

(d) Sealant Application and Tooling:

1. Installation: Dispense high-performance, non-staining sealant (e.g., Dow 790 or SikaSil WS-

290) into the joint using a professional bulk or sausage gun.

2. Tooling: Tool the sealant immediately after application with a specialized tool to a slightly concave profile. This ensures complete “wetting” of the joint faces and eliminates air pockets.

3. Final Clean-up: Remove all masking tape and excess sealant from surrounding surfaces.

Ensure the site is free of all project related debris.

C.1.6 PHASE 5 – FAÇADE – EXTERIOR CLEANING

(a) Preparation and Protection:

1. Cleaning Compatibility Testing: Prior to general cleaning, perform small-scale testing of all cleaning agents on a discrete area of each material (granite, brick and metal). Utilize

P a g e 11 | 35 manufacturer’s field-testing procedures to verify that the cleaners effectively remove construction debris without etching, bleaching, or discoloring the surfaces.

2. Surface Wetting: Pre-wet the masonry, stone and metal surfaces with clean water to prevent the cleaning solution from being absorbed too deeply into porous materials.

3. Protection: Mask and protect sensitive adjacent surfaces, including landscaping, signage, and electrical fixtures, from overspray.

4. Testing: Perform a “mock-up” cleaning in an inconspicuous area for each material type (masonry, stone, and metal) to verify the effectiveness of the surfactant and ensure no adverse reactions or discoloration occur.

(b) Cleaning Application:

1. Surfactant Application Apply a mild, pH-neutral surfactant cleaner (e.g. Prosoco Enviro Klean or equivalent) to the facade using low-pressure spray equipment.

2. Agitation: Gently scrub heavily soiled areas or deep-textured masonry with soft-bristle brushes to loosen atmospheric pollutants, dirt, and biological growth without damaging the substrate or existing mortar.

3. Dwell Time: Allow the cleaner to remain on the surface per the manufacturer’s instructions, ensuring the solution does not dry on the façade.

(c) Rinsing and Final Inspection:

1. Low-Pressure Rinse: Thoroughly rinse the surfaces from the top down using a low-pressure wash (typically under 1,000 PSI) to remove all surfactant residue and debris.

2. Metal Panel Detailing: Pay special attention to metal panel interfaces to ensure no streaking or spotting remains from the surfactant.

3. Waste Management: Ensure all wash water is managed in accordance with local environmental regulations and Facility site requirements.

C.1.7 PHASE 6 – FAÇADE – EXTERIOR STEEL PAINTING

The Contractor shall be responsible for:

(a) Cleaning and Surface Preparation:

1. Degreasing: Use a biodegradable alkaline detergent, mineral spirits, or a specialized wax and grease remover to lift oils.

2. Removing Rust and Scale: Use a wire brush, scraper, or power tools to remove loose rust and peeling paint. For industrial-grade results, abrasive blasting (sandblasting) is used to create a clean, etched profile for the primer to “bite” into.

3. Mechanical Scuffing: Even if the steel is clean and smooth, scuff it with 80 to 120-grit sandpaper to create a textured surface that improves adhesion.

4. Final Wipe: Remove all sanding dust and debris with a clean, lint-free cloth and a final pass of solvent before moving to the next stage.

(b) Priming:

1. Type Selection: Use a rust-inhibitive primer for standard steel.

2. Timing: Apply the primer as soon as possible after cleaning, within 24 hours, to prevent “flash rust” from forming on the base metal.

P a g e 12 | 35

3. Application: Apply in thin, even coats to avoid drips. Once dry, inspect for missed spots or uneven areas and lightly sand with fine-grit (220-grit) sandpaper if a smoother finish is required.

(c) Painting:

1. Paint Choice: Use a high-quality oil-based enamel or a Direct-to-Metal (DTM) acrylic coating for maximum durability.

2. Mixing: For multi-component paints, ensure they are mixed thoroughly to disperse pigments and break up lumps. Always discard paint that has exceeded its “pot life”.

3. Coats: Apply at least two coats of the finish paint. Ensure the first coat is fully dry according to the manufacturers’ instructions before applying the second to prevent peeling or bubbling.

C.1.8 PHASE 7 – WET GLAZING

(a) Preparation and Removal:

1. Gasket Undercutting: Carefully undercut and remove the exterior portion of the existing, failed

EPDM rubber glazing gaskets to a depth sufficient to allow for a proper silicone “plug” (typically ¼” to 3/8”).

2. Joint cleaning: Mechanically and manually remove all residual gasket material, dirt, and oxidation from the glass and metal frame interfaces.

3. Solvent Cleaning: Clean the glass and aluminum surfaces using the “two-cloth” method with an approved solvent (e.g. Isopropyl Alcohol) to ensure a chemically clean substrate for maximum adhesion.

(b) Sealant Application:

1. Bond Breaker/Backer: Where necessary, install a thin bond-breaker tape to ensure the sealant only adheres to the glass and the frame, preventing three-sided adhesion.

2. Silicone Installation: Professionally inject high-performance, neutral-curing structural silicone sealant (such as Dow 795 or Tremo Spectrem 2) into the void between the glass and the frame.

(c) Quality Assurance:

1. Compatibility Check: Ensure the selected silicone is compatible with the laminated glass interlayers (if applicable) to prevent delamination at the edges.

2. Cleanup: Remove all smears from the glass surfaces and dispose of old gasket debris.

C.1.9 PHASE 8 – PRECAST STONE PATCHING AND CRACK REPAIRS

(a) Substrate Preparation and Material Selection:

1. Material Analysis: Perform initial analysis of the existing precast stone’s color aggregate size, texture, and physical properties to select the appropriate Jahn Mortar system (e.g. Jahn M100/M120 for patching, specific M-series for crack injection).

2. Surface Preparation: Mechanically remove all loose, deteriorated, or unsound material from the patch area or crack using hand tools or careful grinding. Ensure the substrate is clean, sound, and free of dust, oil, and efflorescence.

P a g e 13 | 35

3. Joint Widening (Cracks): Widen V-cut existing cracks to a uniform width (typically ¼” to 3/8”) to allow for adequate bonding and mortar insertion.

4. Pre-Wetting: Saturate the area to be repaired with clean water for at least 24-hours prior to application to achieve a saturated surface-dry (SSD) condition, which is critical for proper curing and bond development with the Jahn mortars.

(b) Mortar Mixing and Application:

1. Mixing: Mix the selected pre-packaged Jahn restoration mortar exclusively with clean water according to the manufacturer’s instructions to achieve the required consistency. Do not add other additives or Portland Cement.

2. Bonding Slurry (Patching): Apply a thin bonding slurry of the mixed mortar to the SSD substrate just prior to placing the main patch material.

3. Application: Pack the mortar into the joints in layers (lifts) no thicker than ½”, compacting each layer firmly to ensure the elimination of voids.

4. Crack Injection (Specific Cases): For fine, deep cracks, use specialized Jahn grout injection techniques following product-specific data sheets.

(c) Finishing and Curing:

1. Finishing: Tool the final lift of mortar to match the surrounding profile and texture of the original precast stone using spatulas, wire brushes, or carving tools before the material sets.

2. Color Matching (Final): Allow the mortar to cure slightly, then use appropriate staining techniques (if required) to achieve a precise match with the existing façade color once fully cured.

3. Curing Protocol: Mist the repaired areas periodically for a minimum of three (3) to seven (7) days, or cover with damp burlap and plastic sheeting to ensure slow, proper curing and prevent premature drying and cracking.

C.1.10 PHASE 9 – SELECTIVE REPOINTING

The Contractor is responsible for:

(a) Joint Preparation:

1. Identification: Survey the masonry, stone, and precast facades to identify areas of cracked, loose, or eroded mortar joints.

2. Mortar Removal: Carefully remove deteriorated mortar to a uniform depth of approximately

¾” (or until sound mortar is reached) using hand tools or small pneumatic chisels. Power grinders may be used only on horizontal joints and must be stopped short of the masonry units to avoid scarring the edges.

3. Cleaning: Thoroughly clean the joint of all dust and debris using compressed air or a water wash.

4. Pre-Wetting: Dampen the masonry joints with clean water to a saturated surface-dry (SSD) condition to prevent the masonry from prematurely absorbing moisture from the new mortar.

(b) Motar Selection and Installation:

P a g e 14 | 35

1. Material Matching: Utilize a pre-blended restoration mortar (such as Jahn M10 or a site-matched Typed N or O mortar) that matches the original in color, texture, and compressive strength. The new mortar must be weaker than the surrounding masonry units to allow for thermal movement.

2. Tuckpointing: Pack the mortar into the joints in layers (lifts) no thicker than ¼”, compacting each layer firmly to ensure the elimination of voids.

3. Timing: Allow each layer to become “thumbprint hard” before applying the subsequent lift.

(c) Tooling and Curing:

1. Tooling: Once the final lift is thumbprint hard, tool the joint to match the original profile (e.g.

concave, flush, or weathered).

2. Final Clean-up: Use a stiff fiber brush to remove excess mortar from the masonry faces before it fully hardens.

3. Curing: Maintain moisture in the new joints via periodic misting or damp burlap coverage for at least 72-hours to ensure a proper cure and prevent shrinkage cracks.

C.1.11 PHASE 10 – EXTERIOR INSULATED FINISH SYSTEM (EIFS) REPAIR

(a) The Contractor shall be responsible for:

(b) Preparation and Damage Assessment:

1. Inspection: Identify areas of impact damage, cracking, or delamination. Perform “tap testing” to locate hollow zones where the insulation board may have detached from the substrate.

2. Area Preparation: Square off damaged sections using a sharp utility knife or circular saw, cutting through the finish, base coat, and mesh. If the insulation board is damaged, remove it down to the substrate.

3. Cleaning: Remove all dirt, debris, and failed sealant from the repair area. Ensure the surrounding Sto Adhesive finish is clean and dry.

(c) System Restoration:

1. Infill: If insulation was removed, install a new section of Expanded Polystyrene (EPS) board using Sto Adhesive, ensuring a tight fit with the existing board.

2. Base Coat and Mesh: Apply a layer of Sto Primers/Base Coat (e.g. Sto BTS Plus) over the repair area. While the base coat is wet, embed a section of Sto Mesh, overlapping the existing mesh be a minimum of 2.5 inches on all sides to ensure structural continuity.

3. Smoothing: Apply a second pass of base coat to fully encapsulate the mesh and feather the edges into the existing façade to create a level surface.

(d) Finish and Texture Matching:

1. Priming: Once the base coat has cured, apply StoPrime to ensure uniform color and suction for the final finish.

P a g e 15 | 35

2. Finish Coat: Apply a new Sto finish (matching the existing texture, such as Stolit or StoEssence) using a stainless-steel trowel.

3. Blending: Float the finish to match the original stipple or swirl pattern. For a seamless look, the repair may be extended to the nearest aesthetic joint or change in plane.

4. Aesthetic Coating (Optional): If needed to correct color fading, apply a coat of StoColor Lotusan or a similar high-performance coating across the entire panel section.

C.1.12 PHASE 11 – RESETTING DISPLACED SITE PAVING

The Contractor is responsible for:

(a) Removal and Cleaning: Carefully remove and salvage loose and/or displaced paving. Clean the setting bed of all dirt and debris from sub-base. The surfaces must be clean and free of dust for the new mortar to stick.

(b) Applying the Dry Pack Mortar Bed: Mix a standard 4:1 mortar (4 parts sharp sand to 1-part Portland Cement). Apply a “full bed” of mortar to the sub-base.

(c) Resetting: Press the brick into the dry pack and use a rubber mallet to tap it down until it is perfectly flushed with the adjacent units. Check it with a level in multiple directions.

(d) Joints: Fill the gaps around the brick with polymeric sand and slightly mist with water. Clean the site of all dirt and debris.

C.1.13 PHASE 12 – QUALITY CONTROL AND TESTING

(a) The Contractor shall during removal of joints ensure that the concrete surfaces are clean, dry and sound.

(b) The Contractor shall visually inspect joints after application to ensure they are full, the sealant is leveled, and there are no voids or bubbling.

(c) The Contractor shall after installation, inspect for leaks.

(d) The Contractor shall conduct a probe test to check bond integrity and look for evidence of cohesion failure like tears or splits.

C.1.14 PROJECT WARRANTIES

P a g e 16 | 35

(a) The Contractor shall provide a written minimum two (2) year labor and workmanship warranty.

The warranty shall guarantee that all work is free from defect in application and that the Contractor will repair or replace, at no cost to Events DC, any portion of the system that fails due to poor workmanship or improper installation within the warranty period.

(b) The Contractor shall provide a minimum five (5) year performance Manufacturer’s warranty from Emseal for the expansion joint assemblies and a minimum twenty (20) year performance warranty for the silicone sealant façade joints. These warranties shall cover the replacement of defective materials and provide technical support in the event of a product failure.

C.1.15 SCHEDULE OF WORK

The Work shall be performed while the Convention Center is hosting a full schedule of events. In consideration of these events, the Contractor shall:

(a) Comply with Events DC’s “Rules of the Jobsite for Contractors”, included by reference in the List of Attachments in Section L;

(b) Anticipate some Work being performed in the evenings and/or weekends;

(c) Make appropriate provisions to minimize noise and dust as well as to centralize work, storage, and staging areas;

(d) Ensure that all of its staff and subcontractors remain within assigned work areas so as not to encroach upon Events DC’s clients’ right to peaceably conduct their licensed business during the construction period; and

(e) Work in conjunction with the COTR to coordinate all Work, delivery and storage of materials and equipment.

C.1.16 SITE SAFETY AND CLEAN-UP

(a) The Contractor will be required to provide a safe and efficient site. Controlled access will be required.

(b) The Contractor shall be responsible for maintaining the site for the duration of the Work.

(c) The Contractor shall provide and post general safety/warning signage in and around the Work areas and assure that each individual prepares and adheres to adequate safety programs throughout the Work.

(d) The Contractor shall provide and maintain temporary sanitary facilities for its staff, to be located in an area designated by the COTR.

P a g e 17 | 35

(e) The Contractor shall provide daily clean-up and offsite disposal of all debris resulting from the Work.

[End of Section C]

SECTION D – CONTRACT TERM, DELIVERABLES AND PERFORMANCE

D.1 TERM OF CONTRACT

(a) The base term of the Contract shall be from date of award through September 30, 2028.

(b) Events DC has the right to extend the term of the Contract for four (4), one-year option periods, or successive fractions thereof, by written modification to the Contract before expiration, provided that Events DC gives the Contractor preliminary written notice of its intent to extend at least thirty

(30) days before the Contract expires. The preliminary notice does not commit Events DC to an extension. The Contractor may waive the thirty (30) day preliminary notice requirement by providing a written waiver to the COTR prior to expiration of the Contract. The exercise of an Option is subject to the availability of funds at the time the Option is exercised.

D.2 DELIVERABLES

The Contractor shall provide, at a minimum, the deliverables described below. Additionally, and upon request, the Contractor shall provide other reports which may be presented to Events DC’s Board of Directors, or the Council of the District of Columbia.

DELIVERABLE

METHOD OF

DELIVERY DUE DATE TO WHOM

Schematic and Concept 50%

Design Drawings (C.1.2)

Electronic Three (3) Months after Contract Execution

COTR

Progress Drawings 75% Design (C.1.2)

Electronic Three (3) Months after fifty percent

(50%) Design

COTR

Progress Drawings 100% Design (C.1.2)

Electronic Three (3) Months after fifty percent

(50%)Design

COTR

Permitting, Phasing, Safety

& Protection Plans (C.1.2.d)

Electronic After completion of replacement specifications

COTR

Project Schedule (C1.2.e) Electronic

After completion of approved procurement list

COTR

Warranty Information

(C.1.14) Electronic After acceptance of the Project COTR

P a g e 18 | 35

Certificate of Insurance Electronic

Within fourteen

(14) calendar days of Contract award and

Annually (if Option Years are exercised)

COTR

Invoices E-mail Monthly COTR and invoices@eventsdc.com

If any of the deliverables due dates fall on a weekend or Federal Holiday, the due date will be the next business day.

D.3 PERFORMANCE

(a) Events DC desires to obtain complete and satisfactory performance in accordance with the specifications and requirements of this RFP and the Contract. To this end, Events DC is contracting for the complete performance of services identified in Section C above and reserves the right to assess deductions for non-performance. Events DC will consider inadequate performance to be as undesirable as non-performance, as the cost of correcting inadequate performance may equal or exceed the cost of initial performance.

(b) The Contractor may risk termination or replacement if continued engagement is contrary to a consistent productive relationship between the parties to the Contract, or poses an unacceptable risk to Events DC’s business and reputation in the marketplace.

D.4 CONTRACTOR FURNISHED EQUIPMENT

(a) The Contractor is solely responsible for the quality and performance of all Contractor provided materials and equipment. The Contractor shall be responsible for the cost of any repairs necessary to its equipment.

(b) The Contractor and its personnel shall be knowledgeable and trained in the proper use and operation of all equipment used to fulfill the requirements of the Contract.

(c) All Contractor provided materials, and equipment shall be available for inspection by

Events DC at the request of the COTR.

[End of Section D] mailto:invoices@eventsdc.com

P a g e 19 | 35

SECTION E – SPECIFIC CONTRACT PROVISIONS

E.1 STANDARD CONTRACT TERMS AND CONDITIONS

Events DC’s Standard Contract Terms and Conditions (March 2025) are located under the “Files” tab of the bid. In the event of a conflict between this RFP and the standard contract terms and conditions, the prevailing document shall be this RFP.

E.2 REQUIRED SUBCONTRACTING SET-ASIDE

Thirty-five percent (35%) of the annual total dollar value of the Contract has been set-aside for performance through subcontracting with businesses certified by the District’s Department of Small and Local Business Development as Small Certified Enterprises (“SBEs”). If there are insufficient qualified SBEs to completely fulfill this requirement, then the subcontracting requirement may be satisfied by subcontracting thirty-five percent (35%) of the total annual dollar value to any CBE, provided that all reasonable efforts shall be made to ensure that qualified CBEs are significant participants in the overall subcontracting work. Any Offeror responding to this RFP shall submit a preliminary subcontracting plan meeting the requirements of this section with its response to this RFP. Any Offeror failing to submit a plan with its response to this RFP will be deemed non-responsive. Further, final Contract award is contingent on approval of the plan by the COTR; disapproval of a subcontracting plan will result in non-award of the Contract. Once the plan is approved by the COTR and the Contract is awarded, changes may only occur with the prior written approval of Events DC’s Chief Contracting Officer and the Director of the District’s Department of Small and Local Business Development (“DSLBD”).

The preliminary subcontracting plan must include the following:

(a) The name and address of each subcontractor;

(b) The current certification number of each SBE or CBE subcontractor;

(c) The scope of work to be performed by each subcontractor; and

(d) The price to be paid by the beneficiary to each subcontractor.

A subcontracting plan template is available under the “Attachments” tab.

E.3 U.S. DEPARTMENT OF LABOR WAGE DETERMINATIONS

The Contractor shall be bound by the current and applicable Wage Determination No. 2015-4281, Revision 35, December 3, 2025, issued by the U.S. Department of Labor in accordance with the Service Contract Act (41 U.S.C. 351 et seq.), for the term of the Contract. If an option is exercised, the Contractor shall be bound by the applicable wage rate at the time of the exercise. If the option is exercised and a revised wage determination is applicable for the option period, the Contractor may be entitled to an equitable adjustment.

P a g e 20 | 35

E.4 INSURANCE

Prior to the commencement of any Work, the Contractor shall obtain and maintain throughout the term of the Contract, the following insurance coverage at its sole cost and expense:

(a) Commercial General Liability Insurance, written on an occurrence basis, at limits of at least $1,000,000 per occurrence and $2,000,000 general aggregate, for bodily injury and property damage liability, including broad form coverage for property damage, products and completed operations, personal injury (e.g., false arrest, false imprisonment, defamation, libel and slander, discrimination and invasion of privacy), independent contractor’s liability and contractual liability.

(b) Umbrella Liability Insurance (or excess liability insurance), which shall be excess of any general liability and automobile liability policy, and which shall be following form or be broader than underlying policies, at per occurrence limits of at least $5,000,000.

(c) Automobile Liability Insurance in the amount of at least $1,000,000 combined single limit, which shall cover bodily injury (or death) and property damage, and covering owned, hired or non-owned vehicles and any other equipment required to be licensed for road use.

(d) Workers’ Compensation Insurance at statutory limits, and employer’s liability coverage at limits of at least $100,000 per occurrence for bodily injury by accident and $100,000 per employee for bodily injury by disease; $500,000 policy limit.

(e) All-risk Property Insurance to protect against loss of owned or rented equipment and tools brought onto and/or used on any portion of the premises by Contractor and its subcontractors.

(f) Errors and Omissions/Professional Liability Insurance at limits of at least $5,000,000 per claim and $5,000,000 aggregate. The retroactive insurance date of such insurance shall be no later than the commencement date of the Contract.

(g) Cyber Liability Insurance at limits of at least $1,000,000 per claim and $3,000,000 aggregate, for claims resulting from a failure of computer security, theft or disclosure of confidential information, unauthorized access, unauthorized use, service attack, transmission of a computer virus, failure to protect personally identifiable or confidential information, and potential or actual violation of a privacy regulation.

All insurance policies shall be issued by companies licensed to do business in the District and on forms acceptable to Events DC and shall provide that the coverage thereunder may not be reduced or canceled unless thirty (30) days unrestricted prior written notice thereof is furnished to Events DC. All insurance shall be primary and not contributory. All insurance policies shall be written by companies with an A.M.

Best Co. rating of A+ VII or better and shall contain a waiver of subrogation in favor of Events DC. The policies described above shall each contain an endorsement to include the Washington Convention and Sports Authority t/a Events DC as additional insured or loss payee as applicable. The additional insured endorsements shall have no added exclusions or limitations of coverage to limits of liability contractually required or percentage of negligence attributed to the named insured. Certificates of insurance (or copies of policies, if required by Events DC) for the coverage described herein shall be furnished to Events DC

P a g e 21 | 35 prior to commencing Work and shall state that Events DC is an additional insured or loss payee as prescribed herein.

The Contractor shall immediately notify Events DC of cancellation or material modification of any policy. If the insurance provided is not in compliance with the requirements herein, Events DC may, at its option, require the Contractor to stop Work pending such compliance.

The Contractor shall immediately report in writing to Events DC any incident that might reasonably be expected to result in any claim under any insurance required under the Contract. The Contractor shall cooperate fully with Events DC in the investigation and disposition of any claim arising out of the performance of the Contract.

E.5 INDEMNIFICATION

(a) The Contractor shall defend, indemnify and hold harmless Events DC, its directors, officers, agents, employees, and other representatives and, as applicable, the District (each, an “Indemnified Party”), from and against any and all losses, expenses (including, without limitation, reasonable attorneys’ fees and costs), liabilities, judgments, demands, claims and damages of any kind arising from or relating to or as a consequence of any act, omission, neglect, breach or default of the Contractor, its agents, employees, or its subcontractors in connection with the Contract.

(b) The indemnification obligation under this section shall not be limited by the existence of any insurance policy or by any limitation on the amount or type of damages, compensation or benefits payable by or for Contractor or any subcontractor and shall survive the termination of the Contract.

Events DC agrees to give Contractor written notice of any claim of indemnity under this section.

Additionally, Contractor shall, at its own expense, control the defense or settlement of such claim with counsel satisfactory to Events DC, provided that Contractor shall not settle any claim which imposes upon an Indemnified Party any obligation, or in any way prejudices the rights of an Indemnified Party, without the Indemnified Party’s prior written consent. In addition to other remedies available to Events DC, Events DC may withhold or retain monies due or to become due to the Contractor under the Contract to satisfy any outstanding claim which Events DC may have against the Contractor.

E.6 51% DISTRICT RESIDENT NEW HIRES REQUIREMENT AND FIRST SOURCE

EMPLOYMENT AGREEMENT

(a) The Contractor shall comply with the First Source Agreement Act of 1984 (“First Source

Act”), D.C. Code § 2-219.01 et seq., as amended.

(b) The Contractor shall enter into and maintain, during the term of the Contract, a First Source

Employment Agreement with the District’s Department of Employment Services (“DOES”) in which the Contractor shall agree that:

1. The first source for finding employees to fill all jobs created in order to perform the

Contract shall be DOES; and

2. The first source for finding employees to fill any vacancy occurring in all jobs covered by the First Source Employment Agreement shall be the DOES First Source Register.

(c) The Contractor shall submit to DOES, no later than the 10th day of each month following execution of the Contract, a First Source Agreement Contract Compliance Report

P a g e 22 | 35

(“Compliance Report”) verifying its compliance with the First Source Agreement for the preceding month. The Compliance Report for the contract shall include the following:

1. Number of employees needed;

2. Number of current employees transferred;

3. Number of new job openings created;

4. Number of job openings listed with DOES;

5. Total number of District residents hired for the reporting period and the cumulative total number of District residents hired; and

6. Total number of all employees hired for the reporting period and the cumulative total number of employees hired, including:

a. Name;

b.