01 10 00 - SUMMARY OF WORK.pdf

DENVER ATCT (DEN) ROOF REPLACEMENT PROJECT

90% DESIGN DOCUMENTS JCN: 904642

01 10 00 – SUMMARY OF WORK PAGE 1 OF 4

SECTION 01 10 00 - SUMMARY OF WORK

PART 1 – GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Work covered by the Contract Documents.

2. Use of premises.

3. FAA's occupancy requirements

4. Work restrictions.

5. Coordination with other contract work.

B. All durations listed in the Specifications are calendar days, unless noted otherwise.

C. These specifications, together with the referenced specifications, standards, and drawings specified in the Contract Documents, cover the requirements for all work associated with the Denver ATCT (DEN) Base Building and Connector Building Roof

Replacement project at Denver International Airport.

1.2 SCOPE OF WORK FOR DEN ATCT BASE AND CONNECTOR BUILDING ROOFS

A. Remove and replace approximately 9,982 ft of the existing ballasted elastomeric roofing and existing insulation on the DEN ATCT Base and Connector Buildings.

Replace insulation as necessary. Provide additional insulation as needed to achieve a minimum slope of ¼” per foot toward the roof top drains. Install a new ballasted elastomeric roof fully warranted by the manufacturer for Twenty (20) years to cover defects in the manufacture of the roof membrane and a warranty covering workmanship.

The warranty will cover installation, what items are covered, and what will void them.

B. Remove the coping caps and inspect the parapet interior void for any damage, moisture, mold, etc., and remediate, repair, and replace as necessary.

C. Remove and replace vapor barrier material, insulation, pitch pans, scuppers, drains (new collars, strainers, & covers), curbs and flashing, penetration flashing, protection board, parapet wall membrane, curb coping, flashing, water blocks, and ballast (use of existing ballast will be investigated for reuse).

D. Repair the water damaged roof and ceiling of the Connector Building roof located over the eastside ground level loading dock.

E. Remediate and replace as necessary those items beneath the elastomeric sheet roofing, i.e., rigid insulation, vapor barrier, wood blocking inside the parapet walls

F. Remove and replace the Base Building parapet wall appurtenances, i.e., vents, lightning protection system mechanical clamps.

G. Maintain integrity and functionality of the existing electrical lightning protection system

01 10 00 – SUMMARY OF WORK PAGE 2 OF 4

overlaying existing roof.

H. Replace all adhesive and mechanical mounting cable clamps of the lightning protection system located on the Base and Connector Building’s roof and parapet walls. Replace and repair if required all mechanical lightning protection system roof clips, mechanical connections and fasteners such as those on the ends of bonding jumpers connected to exterior metallic louvers and vents.

I. Install a handrail/guardrail to protect the hatch opening above the Base Building roof-top hatchway to meet current OSHA requirements of 42-inch height. Measurement of

42-inches will be taken from the top of the replaced roof surface.

J. Install a ladder up safety device on the ladder to the roof hatch and a pipe handrail extension, as indicated.

K. Paint various items, i.e., all metal railing, new railing extension, flashings, and parapet, caps.

L. Replace flashing and sealant on all rooftop edges abutting vertical wall structures, i.e., the DEN ATCT Shaft, Base Building, and DIA Terminal-C Building.

M. Notes Regarding the existing roof conditions:

1. The existing ballasted membrane roof on the DEN ATCT Base and Connector

Buildings dates to 1992. The roof has been maintained over the years and patched as necessary.

2. The areas that have leaked are:

I. Rooftop areas adjacent to the ATCT Base Building elevator shaft

(repaired).

II. Rooftop areas of the ATCT Connector Building loading dock adjacent to the ATCT shaft and Base Building, and Denver International Airport (DIA)

Terminal-C Concourse Building (existing condition).

1.3 WORK RESTRICTIONS

A. All work must be coordinated in order to maintain an operational facility. The total contract duration for completion of all work shall be Ninety (90) calendar days, excluding inclement weather and holiday moratorium dates. Night work may be required, if work disturbs air traffic operations.

B. Perspective bidders are required to perform a site visit to assess the actual roof conditions before submitting a bid. See section 00 20 10.

1.4 FAA OCCUPANCY

A. The FAA's DEN ATCT Base and Connector Building operating hours are occupied full time 24/7.

B. Use of Site: Limit use of premises to areas within the Contract limits indicated. Do not

01 10 00 – SUMMARY OF WORK PAGE 3 OF 4

disturb portions of Project site beyond areas in which the Work is indicated. Confine constructions operations to the areas required for the scope of work indicated in the

Drawings. Keep driveways and entrances serving the site and adjacent buildings clear and available to FAA, FAA's employees, DIA operations, and emergency vehicles at all time. Do not park equipment or storage of materials outside of the lay-down yard shown on the Drawings. Contractor shall schedule deliveries of materials to minimize use of driveways and entrances. Schedule deliveries to minimize space and time requirements for storage of materials and equipment on-site.

C. Protection of Existing Buildings: Maintain the ATCT, Base and Connector Building in a weather-tight condition throughout the Work.

1.5 COORDINATION WITH WORK UNDER OTHER CONTRACTS

A. General: Concurrent separate work, not related to this Work, may occur in the ATCT during this Work. The FAA RE/COR will conduct a Coordination Meeting prior to start of other work. In accordance with agreements and resolutions at the Coordination

Meeting, cooperate and coordinate with work performance by others.

1.6 WORK RESTRICTIONS

A. Work Hours: The hours of on-site work shall be as approved by the FAA RE/COR.

B. Weekends and Federal Holidays: Work during weekends and during the following ten

Federal holidays shall be only if approved, at the FAA's option, by the FAA RE/COR:

Memorial Day, Independence Day, Labor Day.

A. Existing Utility Interruptions: Do not interrupt utilities serving facilities occupied by

FAA or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated:

1. Notify FAA RE/COR not less than seven days in advance of proposed utility interruptions.

2. Do not proceed with utility interruptions without FAA RE/COR's written permission.

E. Smoking on the Premises: Smoking anywhere within the ATCT and base building shall be permitted only if and where designated by the COR. In no case shall smoking occur within the ATCT or base building, or within 25 feet of their entrances, operable windows, or outdoor air intakes.

F. Work on the ATCT cab roof and inside the ATCT shall not disturb the air traffic controllers. Night work may be required for ATCT work.

1.7 CONTRACTOR SUPERINTENDENCE

A. The Contractor shall at all times during performance of this Contract and until the Work is completed and accepted, directly superintend the work and have on the project site at all times of work a competent superintendent with the authority to act for the Contractor.

01 10 00 – SUMMARY OF WORK PAGE 4 OF 4

1.8 EXISTING FACILITY DESCRIPTION

A. The following existing facility description is provided for reference only. All descriptions of existing conditions, dimensions and floor areas shall be field verified.

B. Facility Operation: The facility is owned, operated and maintained by the FAA.

C. The DEN ATCT Base and Connector Buildings are located on the Denver International

Airport, adjacent to Terminal-C Concourse.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

END OF SECTION 01 10 00