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EXHIBIT A SCOPE OF SERVICES

of 13 EXHIBIT A SCOPE OF SERVICES

Metropolitan Transit Authority of Harris County

Facility Maintenance

SCOPE OF WORK

FOR

REPLACEMENT OF THE EXISTING ROOFING @ METRO FIELD SERVICE CENTER (FSC)

General Description:

This work consists of furnishing all necessary equipment, labor, material, and, supervision to remove and replace the 65,610 SF (approximately) roofing of the METRO FSC located @ 1215 Labco St Houston, TX 77029. The facility with the existing roofing showing different sub portions is shown as follows:

The following METRO personnel will be the primary contacts for the consultant:



Personnel contact: METRO Project Manager: Mustaque Rumi, PE/PMP/LEED Green Associate (713) 615-6217 office [email protected] Scope of Work:

1. Existing Condition:

• METRO FSC is operational since 1988. The original roofing was rehabilitated in 2009.

• The existing roofing is showing lot of distresses and leaks frequently @ multiple locations. Constant repair works have been performed to maintain a working status.

• The FSC is a single-story building with five separate roof levels and areas

that each have a single slope toward field drains along the roof perimeter. This facility is in an area where the 3-second gust windspeed is 105 mph, 15-year mean recurrence interval (MRI) of hail is severe, and snow loading is 5 psf to all elevations. The 100-year, 60-minute and 100-year, 24-hour rainfall intensities are 4.75 in. and 13 in., respectively. The ground roughness factor is category C.

• Photos of the existing FSC roofing presented as follows:

mailto:[email protected]



2. Proposed Work

• The existing roofing will have to be demolished and replaced with new

roofing.

• The recommended roof assembly uplift ratings are 1-90 field, 1-135 edges and 1-180 corners. These ratings are based on the information above as well as a 27 ft. eave height, partially enclosed building (due to inadequately



rated dock doors) and building importance factor of 1.15. The strip width for the building should be 11 feet.

• Based on recent field verification, the existing roofing has found to have

reached the end of its effective service life. Core samples indicate wetting of the plywood substrate and asphalt built-up roof membrane. The roof to be replaced measures 65,609 sft. The recovery project will also include new overflow drains and repairs to the steel deck and replacement of deteriorated wood nailers, as required. The existing roof components will be removed down to the steel roof deck, and the selected roof assembly will be constructed as follows: • One layer of mechanically attached R-25 polyisocyanurate roof

board • One layer of ½ in. cement fiber board • Three plies of fiberglass felt and asphalt built-up roof membrane • One layer of cool-roof rated SBS modified asphalt membrane

• There are approximately 16 roof top units (RTU) providing air conditioning to the building. The RTUs secured to roof curbs are tied to the existing roofs with approximately 4 (four) tie downs. There is a gas line connected to the RTU as shown below:



• The proposed roofing need to continue up to the roof curbs. As part of the roofing demo work, the tie towns will have to be taken out. After roofing work is complete, new tie downs will have to be attached. Some portion of the gas line (approximately 4 to 5 feet) may need to be replaced if found to be non usable.

• The Contractor shall review, field verify, and confirm all existing conditions

(to include but not limited to: stated dimensions, drawings, layouts, etc.) prior to performing this work. The Contractor shall also comply with all applicable METRO Specifications as stated in METRO’s Facility Upgrade Project Standard Specifications Volumes 1 and 2 dated August 31, 2001.

• All work shall comply with the requirements of this document including

national specification and standards, City of Houston Building, Plumbing, Electrical, Mechanical and Fire Codes, state and local government authority codes, regulations, and specifications.

• In case of conflicts or discrepancies between States, National, City and local

standards, local requirements shall govern unless otherwise directed in

RTU

Tie Downs Gas Line

Roof Curbs



writing. All conflicts shall be brought to the attention of METRO PM in writing for resolution.

• The Contractor shall submit manufacturer’s specification, detailed

construction schedule and phasing plans to METRO’s Project Manager for review and approval prior to beginning of the work.

• The Contractor is to coordinate with METRO’s Project Manager for

construction vehicle access and related personnel activities within the facility.

• The Contractor shall comply with all METRO and OSHA safety

requirements and shall be fully responsible for any and all occurrence or accidents due to his work.

• The Contractor shall coordinate his work to minimize disruptions to

METRO’s operations and as directed by METRO. The normal hours for this facility are 7:00 am to 5:00 pm (Monday thru Friday). Any necessary after hour / weekend work shall be scheduled with Project Manager 48 hours in advance.

• The Bid Documents have the engineer’s sealed set of plans & specs

(Appendix A & B).

• It will be the responsibility of the selected Contractor to schedule necessary city inspections and obtain City of Houston final approval for all work associated with the rehabilitation of the fire alarm and fire on systems.

• The Contractor shall submit a site specific safety plan to METRO’s Project

Manager for approval prior to beginning of work. The Contractor shall safely haul and legally dispose of all removed material from the site, and follow all safety and environmental codes and regulatory requirements for this work.

• Space will be assigned to the Contractor for staging and placing of

equipment during the construction. The Contractor shall barricade this area and maintain it in a neat, clean and orderly fashion always.

• A daily sweeping and cleaning initiative will be required to keep the transit center in an operable condition.

• Prior to bidding, The Contractor shall visit the facility, review and verify each site field condition; and shall validate all existing fire alarm and fire suppression systems condition, information, dimensions and layout on drawings as applicable. METRO highly recommends that the Contractor attends the original site visit to be scheduled. METRO will arrange an alternate site visit if requested by the Contractor in writing.



• All work should comply with the requirements of this document including; all

national specification and standards, NFPA 70, NEC, COH building, plumbing, electrical, mechanical and fire codes, state and local government authority codes, regulations, and specifications.

• The Contractor will be required to conduct weekly progress meetings with all operations personnel. These meetings will consist of safety review and a two week look ahead for progress.

• The Contractor will be responsible for leading weekly progress meetings and distributing progress meeting minutes to METRO personnel.

• The Contractor shall provide a containment system as required, around the

perimeter of the work. The containment system must be enough in size and nature to ensure personnel safety.

• The Contractor will be held responsible for any damages associated with

the work performed.

• Contractor will supply METRO Project Manager with all O&M Manuals and a written Preventative Maintenance Program.

• Upon the completion of the project the Contractor will submit a written letter

of warranty to the METRO Project Manager. Warranty period of performance for workmanship must be a minimum of 12 months from the date of final acceptance.

• The Contractor shall produce redline of as-built drawings. The engineer of

record shall produce CADD as-built/record drawings from that.

• The overall period of performance for the project is up to 150 calendar days.

• If here are security related issues during construction, the contractor is recommended to file a report immediately to METRO Police @ 713-224-COPS

• METRO will pay the permit fee at cost. Include pricing in the bid.

• METRO will pay for bonds (bid/payment & performance) at cost. Include

pricing in the bid.

• METRO Specifications:

Please follow applicable METRO Specifications. Some relevant sections are:



VOLUME 1 OF 2 – INDEX OF SPECIFICATIONS DIVISION 1 GENERAL REQUIREMENTS Revision Date 01010 Summary of Work 08/31/01 01025 Mobilization 12/31/97 01040 Project Coordination 12/31/97 01051 Grades, Lines and Levels 12/31/97 01205 Project Testing 12/31/97 01311 CPM Network Analysis 06/30/99 01312 Construction Schedule 06/24/99 01452 Contractor Quality Control 03/16/00 01505 Temporary Facilities 12/31/97 01541 Maintenance and Protection of Utilities 01/17/01 01560 Environmental Impact Controls 12/31/97 01573 Temporary Traffic Lighting Devices 12/31/97 01700 Project Close Out 12/31/97 01730 Contractor Data Requirements 06/15/00 DIVISION 2 SITEWORK 02050 Demolition 03/06/00 02110 Site Clearing 12/31/97 02910 Contaminated Materials Handling 08/16/01 02515 Portland Cement Concrete Paving 12/31/97 DIVISION 3 CONCRETE 03030 Existing and Repaired Concrete Surface Finish 12/31/97 03320 Concrete Topping - Less than 2 Inches Thick

12/31/97 03100 Concrete Formwork 12/31/97 03200 Concrete Reinforcement 12/31/97 03300 Cast-In-Place Concrete 08/16/01 03321 Concrete Floor Toppings 12/31/97 03600 Concrete Crack Injection and Cold Joint Repair 08/16/01 DIVISION 7 THERMAL & MOISTURE PROTECTION 07900 Joint Sealants 06/23/99 07920 Joints 12/31/97



DIVISION 7 THERMAL & MOISTURE PROTECTION 07160 Bituminous Damp proofing 12/31/97 07190 Vapor Barrier 12/31/97 07200 Building Insulation 12/31/97 07231 Fire Safing Miscellaneous Seals 03/08/00 07240 Exterior Insulation/Synthetic Plaster 12/31/97 07253 Sprayed Fireproofing 12/31/97 07410 Preformed Metal Panel Systems 06/23/99 07411 Preformed Metal Panels Systems 06/23/99 07412 Gutters, Scuppers and Down Spouts 12/31/97 07420 Prefinished Cement Panels 12/31/97 07423 Porcelain Enamel Panels 12/31/97 07500 Built-Up Roofing System 12/31/97 07550 Single-Ply Membrane Roofing System 12/31/97 07600 Flashing and Sheet Metal 12/31/97 07610 Standing Seam Metal Roofing System 03/09/00 07830 Roof Hatches and Fire and Smoke Hatches 12/31/97 07900 Joint Sealants 06/23/99 07920 Joints 2/31/97



DIVISION 9 FINISHES 09205 Metal Furring and Lathing 12/31/97 09220 Portland Cement Plaster 12/31/97 09250 Gypsum Wallboard & Sheathing 07/28/99 09255 Gypsum Drywall Systems 07/01/99 09310 Ceramic Tile 03/13/00 09510 Ceiling Systems 08/20/01 09650 Resilient Flooring 03/13/00 09695 Carpeting 08/20/01 09701 Epoxy/Urethane Floor Topping 08/20/01 09900 Field Painting 08/10/01

VOLUME 2 OF 2 – INDEX OF SPECIFICATIONS

DIVISION 16 ELECTRICAL 16050 Electrical General Requirements and Basic Materials 12/31/97 16111 Conduits 09/28/99 16112 Busways 12/31/97 16150 Electric Motors 04/06/00 16155 Motor Starters 08/24/01 16163 Distribution Panelboards 12/31/97 16200 Vehicle Wash System Electrical Equipment 12/29/99 16225 Industrial Waste Water Treatment Plant Electrical Equipment 12/31/97 16251 Automatic Transfer Switches 12/31/97 16402 Underground Duct Systems 08/03/92 16450 Grounding 12/31/97 16460 Dry-Type Transformers 12/31/97 16470 Distribution Switchboards 12/31/97 16520 Lighting Fixtures 12/31/97 16601 Lightning Protection 08/23/01 16610 Stand-By Engine Generator System 07/23/92 16613 Battery Charger System and Benches 07/27/92 16721 Fire Alarm and Detection System 03/16/00 16730 Clock System 07/27/92 16740 Telephone Distribution Raceway System 10/18/99 16743 Installation of Voice and Data Cabling 04/14/99 16745 PABX Telephone System 08/27/01 16760 Intercommunication System 07/27/92



16770 Voice Paging System 12/31/97 16782 Card Access Control/Alarm Monitoring System 08/24/01 16900 Controls and Instrumentation 07/27/92 16901 Programmable Controllers 08/24/01 16910 Closed Circuit Television System 12/31/97 16930 U/G Tanks Liquid Level Monitoring System 08/28/01 16940 Leak Detection System 07/24/92

Copies (electronic) of these METRO’s specification section(s) will be provided upon written request to METRO’s Project Manager.

1. Attachments:

1.1. Attachment A – Sealed Construction Drawings (Separate Document) 1.2. Attachment B –Construction Specifications (Separate Document)

END OF SCOPE