DRAFT SOW B220 Roof.pdf

STATEMENT OF WORK

MXDP 25-1001 REPAIR ROOF FIRE STATION, B220

LAUGHLIN AIR FORCE BASE, TEXAS

3/21/2025

PREPARED BY: 47 CES/CENMP

MXDP 25-1001 REPAIR ROOF FIRE STATION, B220 [21 March 2025]

1. Project Description

1.1. Purpose

1.1.1. The purpose of this project is to repair by replacing the roof of Building 220.

Existing roof has begun to fail and allow water to leak through during rain at several critical locations causing issues with the ceiling, interior finishes and damages to both work and living spaces. The roof is functioning beyond its service life.

1.2. Location of Work

1.2.1. 490 Barnes Street, Laughlin AFB, Texas, Building 220 (B220).

1.3. Within this document, the following shall be consistent:

1.3.1. When “the Government” is mentioned, it is a representation of the Project Manager

(PM), the Contracting Officer (CO), and the Contract Specialist (CS).

1.3.2. When “the Contractor” is mentioned, it is a representation of the prime contractor, all sub-contractors, and all other parties working with or for the prime contractor.

2. Scope of Work

2.1. The Contractor shall provide all materials, labor, tools, equipment, transportation, and all other incidentals to complete the work outlined in the Statement of Work (SOW) to install a new Ethylene Propylene Diene Monomer (EPDM) Roof system to replace the existing roof.

2.2. This project is a design-build contract. The Contractor shall be responsible for a complete

100% design and for the construction of the design. Work will include the following.

2.2.1. Demolition of existing Asphalt Blanket Rolled Membrane Roof System, flashing and trim.

2.2.2. Inspection and repair of the roof decking and roof base as appropriate.

2.2.3. Replacement of gutters, drains, downspouts, splashguards, damaged utility caps and re-pointing of masonry and expansion joints and all other roofing accessories/components not mentioned.

2.2.4. Addition of fully adhered EPDM roof system, roof accesses (three different locations), coping to parapet walls, molded walkway, permanent fall protection and

Lightning Protection System (LPS).

2.2.4.1. The existing roof penetrations shall not be demolished unless directed by the Government.

2.2.4.2. Any items down to the roof structure and below the existing roof system that have pre-existing damage or would hinder the function or installation of the new EPDM roofing system or promote a health/hazard may be removed, but only after approval by the Government.

2.2.4.3. All materials installed shall follow Laughlin specifications and manufacturer instructions.

2.3. All work on this project shall be accomplished in accordance with, but not limited to, manufacturer inspections and the latest editions of the following specifications cited therein:

2.3.1. Attachment C, Laughlin Air Force Base Division 01 General Specifications for

Construction Projects

2.3.2. Attachment D, Laughlin AFB Environmental Quality Construction Specifications

2.3.3. Attachment E, Laughlin Installation Facility Standards (IFS)

2.3.4. UFC 1-200-01 DoD Building Code

2.3.5. UFC 1-200-02 High Performance and Sustainable Building Requirements

2.3.6. UFC 3-101-01 Architecture

2.3.7. UFC 3-110-03 Roofing

2.3.8. UFC 3-201-01 Civil Engineering

2.3.9. UFC 3-575-01 Lightning and Static Electricity Protection Systems

2.3.10. ASTM D5957 – Standard Guide for Flood Testing Horizontal Waterproofing

Installations

2.3.11. ASTM C270 - Standard Specification for Mortar for Unit Masonry

2.4. Existing Conditions

2.4.1. The Contractor shall investigate the existing conditions of B220 roofing system;

obtain all necessary information and engineering design data through on-site investigation, reconnaissance, and surveys, as required to complete the scope of work.

2.4.1.1. The Government shall furnish copies of all available records as necessary to aid in the completion of this project; however, the use of Government furnished data does not relieve the Contractor from performing thorough site investigation to obtain all the information necessary to provide complete and fully functioning systems.

2.4.1.2. The Contractor shall be solely responsible for verifying and validating existing conditions and incorporating the proposed requirements in conjunction with the existing conditions.

2.4.1.3. Examination of the current roof’s system shall be performed in accordance with UFC 3-110-03 Roofing section 6-4.1. The Contractor shall perform a core sample of the roof to analyze the structure, insulation, roofing material and the base of the roof. These findings on the current roof’s system and roof base shall be included in the submittal of their summary of site investigation.

2.4.1.4. The Contractor shall test the roofing material of B220 for hazard containing material in accordance with Attachment D Laughlin AFB Environmental Quality

Construction Specifications. The Contractor shall submit this report with their summary of site investigations. If any hazardous materials are found in the roofing material, the Contractor shall perform an abatement for it.

2.4.2. The Contractor shall submit a proposal on the demolition and repair work to be done on the existing roof system. There shall be minimal disturbance of the current roof system during the site investigations.

2.5. Design Requirements

2.5.1. The Contractor shall provide a demolition plan. It shall include, but is not limited to, plan for the following items:

2.5.1.1. Asphalt Blanket Membrane Roof System.

2.5.1.2. Gutters, drains, downspouts and roofing accessories/components.

2.5.1.3. Demolish in phases if required.

2.5.2. The Contractor shall complete a 100% design for a watertight, fully functional

EPDM roof system. All designs and drawings shall be prepared by a registered professional engineer of the required disciplines.

2.5.2.1. The new roof system shall be a fully adhered EPDM Roof System in reference to UFC 3-110-03 Roofing.

2.5.2.1.1. The EPDM roof system shall be the color Off-white referenced in

Attachment E, Laughlin Installation Facilities Standards section D07.9.2.

2.5.2.1.2. The gutters, drains, coping and exterior downspouts shall be the color Medium Bronze referenced in Attachment E, Laughlin Installation

Facilities Standards section D07.9.1.

2.5.2.2. The Contractor shall provide a recommendation for the repair work to be completed on the roof deck support structure and the insulation of the roof.

2.5.2.2.1. The Contractor shall provide a phasing plan, to ensure facility operations remain continuous, during the construction period.

2.5.2.3. The Contractor shall install three roof accesses with safety guardrails in reference to UFC 3-110-03 Roofing. The two accesses at ground level shall have a ladder guard.

2.5.2.3.1. The first roof access will be on the right-side ground level, right of the mechanical room. The second access will be on the right side of the building leading from the first to second elevation. The third access will be on the left-side ground level behind the gated encloser.

2.5.2.3.1.1. Refer to Attachment A, Pre-Existing Conditions.

2.5.2.4. The Contractor shall install an EPDM molded walkway on all elevations of the roof at B220.

2.5.2.4.1. The walkway shall provide a designated route for rooftop equipment and provide a route between the first and second roof accesses.

2.5.2.5. The Contractor shall install permanent fall protection on all elevations of the roof at B220 in reference to UFC 3-110-03 Roofing.

2.5.2.6. Lightning Protection System

2.5.2.6.1. The Contractor shall have lightning protection professionals that are certified by the Lightning Protection Institute (LPI) during the investigation and installation of the LPS.

2.5.2.6.2. The LPS shall be commissioned prior to the pre-final inspection.

2.5.2.7. The roof slope shall remain the same as it is currently per UFC 3-110-03

Roofing, Section 6-4.4.

2.5.2.8. The roof drainage system shall be sized per the International Building Code

(IBC) standards for the region.

2.5.2.9. All downspouts shall be solid. Integrate downspouts with the architectural details of the wall system and arrange in an orderly, non-prominent appearance.

2.5.2.10. Contractor shall install gutters, drains and downspouts per manufacturer’s instructions.

2.5.2.11. Interior downspouts shall match with the color of the wall.

2.5.2.12. Exterior downspouts shall be the color referenced in Attachment E, Laughlin Installation Facilities Standards section D07.9.1, Style 2. Provide angled transitional pieces for downspouts to fit closely against the wall for their entire length.

2.5.2.13. HVAC vents and piping are to remain in place during the project and their supports are to be protected to prevent any damage.

2.5.2.14. The Contractor shall submit a work proposal on how to handle the HVAC vents and piping on/in the roof surface during the construction of the project.

2.5.2.15. The Contractor shall replace damaged HVAC and plumbing caps.

2.5.3. All drawings shall be submitted in PDF and CAD format. The CAD drawings shall be compatible to the Autodesk AutoCAD 2020 version which is currently in use by the 47th Civil Engineer Squadron, Laughlin AFB, TX. The Contractor shall also submit the associated plot styles for the CAD drawings.

2.6. Construction Requirements

2.6.1. Work area shall be inspected for moisture and shall be kept dry. If the Contractor detects moisture/precipitation on any part of the roof, they shall dry out the area completely. The Contractor shall not resume work until the CO grants approval.

2.6.2. The Contractor shall execute best methods to ensure no ponding occurs on the roof once complete.

2.6.3. Plastic mesh vents shall be put up around the edges of the roof to prevent any debris during construction from falling off the roof.

2.6.4. The Contractor shall ensure a barricade is used to protect any vegetation and landscaping around the building and are not damaged during construction.

2.6.5. The construction area of the roof shall be kept watertight to prevent any leaks happening throughout construction.

2.6.6. The area of work shall be cleaned by the Contractor after each day of work.

2.6.7. The Contractor shall ensure any roof fixtures such as lighting and HVAC are not damaged during construction.

2.6.7.1. Supports for the roof and equipment shall be maintained throughout the duration of the project.

2.6.8. Exhaust fans and vents shall be reused and replaced during the construction of this project if in working condition. Exhaust fans and vents to be replaced shall be listed on Attachment A, Pre-Existing Conditions. Contractor shall provide new exhaust vents if the existing is not in working condition or damaged.

2.6.9. Any damage to the roof caused by the Contractor shall be repaired/replaced by the

Contractor at no charge to the Government.

2.6.10. The Contractor is responsible for coordinating with the users of the facility to disconnect and reconnect any utilities or services that may be affected during construction. The Contractor shall notify the Government at least 15 business days prior to disconnecting any utilities and services. The Contractor shall minimize these interruptions as much as possible.

2.6.11. The Contractor shall perform the construction in accordance with the approved

100% design documents. Installation shall be in accordance with all the manufacturer’s recommendation and any subsequently referenced specifications therein.

2.6.12. The Contractor shall clean the site and restore it to its original condition or better when construction of the roof is complete.

2.6.12.1. The Contractor shall take photographs of the site prior to the start of construction.

2.6.13. The Contractor shall submit a request for a laydown yard as specified in

Attachment D, Laughlin AFB Environmental Quality Construction Specifications

Section 3.3.1 and follow procedures for maintaining it within Attachment C, Laughlin

Air Force Base Division 01 General Specifications for Construction Projects, Section

12.3.

3. Submittals

3.1. The Contractor shall submit all submittals, see Attachment F, Schedule of Material

Submittals, to the Government for review and approval/disapproval.

3.1.1. The Contractor shall provide the following design submittals:

3.1.1.1. Intermediate Design (65%) – The Contractor shall submit an Intermediate

Design (65%) package including:

3.1.1.1.1. Summary of Site Investigation: one digital copy (PDF)

3.1.1.1.2. Drawings: one digital copies (PDF)

3.1.1.1.3. Draft Specifications: one digital copy (PDF)

3.1.1.1.4. Contractor Work Proposal: one digital copy (PDF)

3.1.2. Pre-Final Design (95%) – The Intermediate Design package shall include all comments/corrections from the 65% design review. The Contractor shall submit a

Pre-Final Design (95%) package including:

3.1.2.1. Design Analysis: one digital copy (PDF)

3.1.2.2. Drawings: One 24x36 inch paper copy (D size) and one digital copies (one

PDF)

3.1.2.3. Draft Specifications: One paper copy and one digital copy (PDF)

3.1.2.4. Draft Construction Schedule: one digital copy (PDF)

3.1.2.5. Draft Submittal Register: two digital copies (PDF and Microsoft Excel)

3.1.2.6. Design Calculations: one digital copy (PDF)

3.1.2.7. Draft Statement of Work: one digital copy (PDF)

3.1.3. Final Design (100%) – The Final design package shall include all comments/corrections from the 95% design review. The Contractor shall submit a

Final Design (100%) package including:

3.1.3.1. Design Analysis: one digital copy (PDF)

3.1.3.2. Drawings: One 24x36 inch paper copy (D size) and two digital copies (one

PDF and one DWG format).

3.1.3.3. Specifications: One paper copy and one digital copy (PDF)

3.1.3.4. Construction Schedule: one digital copy (PDF)

3.1.3.5. Submittal Register: two digital copies (PDF and Microsoft Excel)

3.1.3.6. Design Calculations: one digital copy (PDF)

3.1.3.7. Statement of Work: one digital copy (PDF)

3.1.4. The Contractor shall submit design packages in accordance with the schedule in

Table 1.

Design Submittal Delivery Date

65% Intermediate Design 49 calendar days after Notice to Proceed

#1

95% Pre-Final Design 42 calendar days after Government approves 65% design submittal

100% Final Design 35 calendar days after Government approves 95% design submittal

Table 1. Design Submittal Schedule

3.1.5. The Government shall require up to 21 calendar days for review of each design submittal. The Government shall provide review comments to the Contractor. Design review teleconference shall take place within 7 calendar days of receipt of

Government comments.

3.2. The Contractor shall provide a Statement of Work (SOW) for construction. The SOW shall include at a minimum:

3.2.1. Summary report of the existing conditions of B220.

3.2.2. Description of work to be accomplished.

3.2.3. The SOW shall include a plan for the water test and any other tests deemed necessary.

3.2.4. Requirements for Operations and Maintenance (O&M) training and warranty.

3.2.4.1. The new roof system shall have a product warranty that has no dollar limit, covers watertightness, from the single source manufacturer. The Contractor shall provide a 1-year workmanship warranty that covers all work performed by the

Contractor and all requirements mentioned in this SOW.

3.2.5. The Contractor shall update the attachment G, Schedule of Material Submittals.

3.3. The Contractor shall provide the Government with as-built drawings upon completion of construction. One 24x36 inch paper copy (D size) and two digital copies (one PDF and one CAD format).

4. Deliverables

4.1. The Contractor shall submit all submittals, attachment F, Schedule of Material Submittals, to the Government review for approval/disapproval.

5. Designer of Record

5.1. The term “Designer of Record” in the context of this project shall mean the principal professional Architect or Engineer. The Contractor shall serve as the “Designer of Record” and, as such, will ensure that all completed designs are signed and sealed by registered professionals. The Contractor is accountable for all aspects of the completed design drawings.

6. Schedule

6.1. Notice to Proceed (NTP)

6.1.1. This project shall have three Notices to Proceed (NTP): The Contractor is required to attend a Kick-Off meeting after the first NTP is given, prior to the start of construction.

6.1.1.1. NTP #1 shall be for design submittals and have a PoP of 161 calendar days.

This period includes 63 days of government review.

6.1.1.2. NTP #2 shall be for pre-construction submittals and have a PoP of 60 calendar days. Contractor shall allow government up to 10 calendar days to review these submittals.

6.1.1.2.1. The Contractor shall have all material available on site prior to start of NTP #3.

6.1.1.3. NTP #3 shall be for construction and have a PoP of 98 calendar days.

7. Meetings/Trainings

7.1. Refer to Attachment C, Laughlin Air Force Base Division 01 General Specifications for

Construction Projects, section 6.2 for all meetings the Contractor is expected to participate in throughout the duration of the project. Additional meetings may be held as required.

7.2. Attachment C, Laughlin Air Force Base Division 01 General Specifications for

Construction Projects, section 2.4 for all required trainings the Contractor will need to complete.

8. Attachments

A. Pre-Existing Conditions

B. As-Builts (upon request)

C. Laughlin Air Force Base Division 01 General Specifications for Construction Projects

D. Laughlin AFB Environmental Quality Construction Specifications

E. Laughlin AFB Installation Facility Standards (IFS)

F. Schedule of Material Submittals

G. Progress Schedule Form and Contract Progress Report