(1)_Scope_of_Work.doc

Scope of Work (SOW) for Window Sealants Smith Hall United States Coast Guard Academy

New London, CT

OBJECTIVE

The contractor shall furnish all labor, material, equipment, transportation and supervision to perform the removal of all exterior window caulking and joint sealants of Smith Hall, and replace with Dow Corning 795 Silicone Building Sealant, or industry equivalent as specified below and detailed in Technical Exhibits 1,2 (T.E.s). TEs are elevation drawings detailing the windows on the building to include size, age, condition, as well as installation details of windows. The government recommends that the contractors review all existing conditions at the site, and building facades accessibility for the work required before submitting a quote. A site visit will be conducted by the Contracting Officer’s Representative (COR) CWO2 Nathaniel Peterson at 860-444-8554 (W) or 808-223-3230 (cell).

GENERAL REQUIREMENTS

1. All work for this caulking project will need to be done using quality control measures and provide protections to drives and sidewalk areas below. A safety plan is required. Block off sidewalks and areas below during periods of work. The Contractor shall also submit a safety plan and also an Indoor Air Quality plan defining how indoor air quality will be maintained while caulking / sealant operations are going on during normal operation hours. The contractor shall supply all labor, materials, tools, equipment and supervision required to complete all caulking work at the window locations indicated on the attached drawings.

2. The Contractor shall use a medium modulus, one part silicone sealant specifically designed for weather sealing and structural glazing, such as Dow Corning 795 Silicone Building Sealant, or approved equivalent product.

3. Prior to starting any work, the contractor shall submit:

a. A list of materials to be provided.

b. The Contractor shall provide a work schedule for each office area/classroom 2 weeks in advance with daily updates to allow for continued office operations. If required, caulking and joint sealant of the windows on weekends to avoid office work/classroom disturbance for the affected areas may be authorized. Protect interior of the building during the caulking evolutions.

c. Furniture removal and replacement for needed access, and the removal of old caulking, provide new caulking. Caulking, color, look and shading coefficient shall match existing. The Contractor must provide product data sheets for high grade silicone caulk/sealant, with manufacturer’s specific instructions for joint preparation before installing new caulk / joint sealant .

The color of the new caulk/sealant to be used must be approved by the COR.

d. At COR’s request, submit samples of materials to be used on the project.

4. The contractor shall store materials in strict accordance with manufacturer’s recommendations.

5. The Contractor shall maintain a jobsite log or record that chronicles daily progression of the project.

6. The Contractor shall perform Field Adhesion Tests IAW appendix X.I of ASTM C1193, Standard Guide for Use of Joint Sealants in order to verify sealant adhesion and quality of joint seal. Upon completion of the Field Adhesion Test, immediately make repair to the affected area according to Preparation and Installation procedures listed.

7. After caulking work has been performed, the contractor shall clean the entire exterior surface of each window unit all IAW the International Window Cleaning Association standards, as part of this Contract.

8. Exterior work shall be done in such a way that any ground support equipment (man-lifts, bucket trucks, etc) shall be placed only on hard surfaces such as sidewalks, roadbeds, patios, and not placed on any vegetative surfaces without sufficient ground protection.

EXECUTION

1. Examination

The Contractor shall:

a. Examine the areas and conditions under which the work will be performed.

b. Review planned operating procedures with CGA Public Works and Safety.

c. Not proceed with work until any unsatisfactory conditions are corrected in a manner acceptable to both CGA and the Contractor.

2. Preparation

The Contractor shall:

a. Prepare joints IAW ASTM C1193, Standard Guide for use of Joint Sealants and the sealant manufacturer’s recommendations.

b. Remove existing sealant and joint backer material in a manner not damaging to surrounding surfaces.

c. Remove all traces of the existing sealant on porous surfaces with use of a Bladed Scraper, grinding will not be permitted.

d. Remove all traces of the existing sealant from architectural Metal.

e. Remove all contaminants and foreign matter capable of affecting new sealant bond to joint surfaces.

f. Allow joint surfaces to dry before installing new sealants.

g. Sealants must not be applied to wet surfaces or during rainfall.

3. Installation

The Contractor shall:

a. Install backer rod to maintain the sealant joint ratios as recommended by the manufacturer without stretching, twisting, braiding, or puncturing its outer skin.

b. Apply primer and sealants IAW ASTM C1193, Standard Guide for Use of Joint Sealants and manufacturer’s instructions.

c. Apply primer where required for sealant adhesion immediately prior to caulking.

d. Install sealant immediately after joint preparation.

e. Apply sealant ensuring to fill voids and joints completely.

f. Neatly dry tool sealant in a manner that forces sealant against back of joint, ensure full contact at joint interfaces and leaves a finish that is semi smooth, free of air pockets, foreign embedded matter, ridges, wrinkles, or sags.

g. Clean adjacent surfaces immediately as required and leave work neat and clean.

4. The contractor shall perform quality assurance and diagnostic water leakage field checks in order to evaluate the effectiveness of the joint sealant based on the American Architectural Manufacturer’s Association Specification AAMA 501.2-.03. COR shall designate the completed window joint to be tested.

GOVERNMENT FURNISHED EQUIPMENT/MATERIAL

1. Access to Smith Hall.

2. Escorted access to rooftops of structures.

3. Contractor will have access to Government Furnished Electricity and Potable Water.

PERFORMANCE OF WORK

1. Contractor shall avoid using heavy equipment during times when the soil is soft. Soil ruts shall be avoided and shall be mitigated by the contractor. Contractor shall maintain all equipment operating on site in good repair and free of abnormal leakage of lubricants, fuels, coolants, and hydraulic fluids. Contractor shall not service equipment within Coast Guard Academy grounds where servicing is likely to result in pollution of soil or water.

2. The Coast Guard Academy contains several exterior light posts. The government will temporarily disconnect and remove any light posts that may impede the contractor’s persecution of the work. Logistics for this removal shall be coordinated through Mr. Gary Jones.

3. All Trash/Waste materials shall be removed off site and properly disposed of daily.

4. The period of performance is from 21 Jul 2014 to 31 August 2014. Unless previously authorized by the government, all work shall be performed between the hours of 8:00 a.m. and 4:00 p.m., Monday through Friday excluding Federal Holidays. Actual dates shall be scheduled in advance with CWO2 Nathaniel Peterson at 860-444-8554 (W) or 808-223-3230 (cell).

5. The Coast Guard Academy is a limited smoking facility. Smoking is only authorized in designated areas.

6. Proof of Insurance and License is required.

7. Provide a 20 year Warranty on the new caulking / sealant installed.