Narragansett SOW Roof 2020RG_7_26_2021rg.pdf

Statement of Work Roof Replacement

Northeast Fisheries Science Center Laboratory Narragansett, RI 02882

7/26/2021

PART 1 GENERAL

1.01 DESCRIPTION

A. The Northeast Fisheries Science Center (NEFSC) is located at 28 Tarzwell Drive, Narragansett, RI 02882. All inquiries are to the attention of Ron Guilmette (Facility Operations), is the Contracting Officer's Representative (COR) and may be contacted regarding any questions or for a pre-bid job site inspection, 401-782-3291 Office Phone or email ron.guilmette@noaa.gov.

B. Apply a Fully Adhered 60-mil Sure-Weld TPO membrane Roofing System.

1. Tapered Insulation Minimum thickness of 4.5-inch Tapered SecurShield™ Polyisocyanurate insulation [4'x 4' boards] adhered with Flexible FAST™ Adhesive at 6" on center bead spacing across the entire roof. With an uplift rating of 90-PSF [ANSI/FM 4474].

2. Install flashing, caps, joint covers, scuppers, roof top deck drain hardware and covers, roof accessories (boots, cants, nailer, cleats, fasteners, adhesives, sealants or other materials or products) to deliver a roofing systems meeting the requirements in the contract documents supporting the best practices as recommended by the manufacture, NRCA, CCRC, and ASTM,

3. Roof system designed for proper drainage to existing roof drains.

C. Demolition of existing roofing system, including existing TPO membrane, cover board, insulation, flashing, fasteners, cants, nailers, existing fasteners and other materials to expose the concrete roof deck for new roof installation.

D. The contractor shall install a new roofing system under and around all roof piping, chimneys, vents, drains, extrusions, refrigeration systems, conduit, and other items located on or penetrating the roof.

E. The contractor shall raise existing equipment, provide blocking and flashing as necessary to accommodate new tapped roof system.

F. The contractor shall legally dispose of all demolition materials off site.

1.02 EXTENT OF WORK

Provide all labor, material, tools, equipment, and supervision necessary to complete the installation of approximately 11,507 square feet (sf) of 60-mil Sure-Weld TPO membrane adhered with CAV-Grip III Adhesive.

Cover Board: 1/2” SecurShield™ HD [4'x 4' boards] adhered with Flexible FAST™ Adhesive at 6" on center bead spacing across the entire roof.

Insulation: Minimum thickness of 4.5-inch Tapered SecurShield™ Polyisocyanurate insulation [4'x 4' boards] adhered with Flexible FAST™ Adhesive at 6" on center bead spacing across the entire roof.

Deck: Structural Concrete deck. If residual or unexposed asphalt is present on the deck surface, it must be primed with CCW 702 or CAV-GRIP™ III Low-VOC Adhesive/Primer. ASTMC1371), To include flashings and tapered insulation as specified herein and as indicated in accordance with the manufacturer’s most current specifications and details to ensure to deliver a roofing systems meeting the requirements in the contract documents supporting the best practices as recommended by the manufacture, NRCA, UL, and ASTM.

A. The contractor shall demolish and remove the existing TPO roofing system to include but not limited to, membrane, insulation, fasteners, curbing and flashing and perimeter fascia.

B. The contract shall install provided engineered taper plan for the installation of the new roofing system.

Tapper plan shall provide R-30 rating. See appendix 2.04.

C. The contractor shall raise flashing/fascia and roof top vents as necessary to ensure proper elevation of new roof system. This may require blocking and flashing around exhaust vents.

D. The contractor shall install crickets as indicated in the provided tapper plan to provide proper drainage to minimize any standing water.

E. The roofing contractor shall be fully knowledgeable of all requirements of the contract documents and shall make themselves aware of all job site conditions that will affect their work.

F. The contractor shall be required to relocate, raise and/or move any obstacle preventing work from meeting all requirements within the contract documents. This shall include connections including but not limited to electrical, plumbing, refrigeration, structural and mechanical.

G. The contractor shall ensure/verify roofing surface is completely clean and dry before proceeding with installation in accordance with the manufactures recommendations and roofing industry best practices.

H. The contractor shall install a new roofing system under and around all roof piping, extrusions, rooftop exhaust vents and or any other items located on or penetrating the roof.

I. The contractor shall install new perimeter blocking as required to accommodate new insulation heights and to ensure proper drainage.

J. The contractor shall install SecurEdge 2000 standard Fascia around the perimeter of the roof system, bronze in color to match existing fascia.

K. The contractor shall confirm all supplied information prior to bid, and Inform COR of any conflicts that will affect their cost proposal.

L. Contractor shall install tapper roof insulation with 1/4” per foot with a 1/2’” crickets and 4 ½” minimum at low point to ensure proper drainage to all roof drains and Scuppers with no standing water. See provided tapper plan.

M. Any contractor who intends to submit a bid using a roofing system other than the approved manufacturer must submit for pre-qualification in writing ten (10) calendar days prior to the bid date.

Any contractor who fails to submit all information as requested will be subject to rejection.

1.03 SUBMITTALS

A. Five (5) working days prior to start of work, the roofing contractor shall submit the following:

1. Sample of the manufacturer’s Membrane System Warranty.

2. Submit a letter of certification from the manufacturer which certifies the roofing contractor is authorized to install the manufacturer’s roofing system and lists foremen who have received training.

3. Certification of the manufacturer’s warranty reserve.

4. Manufacturer's Certificate: Certify products meet or exceed specified sustainable design requirements.

5. Sustainable Sites Certificates: Certify roofing materials meet or exceed specified solar reflectance index.

6. SDS Sheet.

7. Safety plan.

8. 1’x1’ TPO sample and manufactures product data.

9. 1’x1’ SecurShield HD Composite and manufactures product data.

10. Product Data: Submit characteristics on adhesive materials, membrane materials, flashing materials, insulation, and cover board.

B. Upon completion of the installed work, submit copies of the manufacturer’s final inspection to the COR and prior to the issuance of the manufacturer’s 20 year warranty.

1.04 PRODUCT DELIVERY, STORAGE AND HANDLING

A. Deliver materials to the job site in the manufacturer’s original, unopened containers or wrappings with the manufacturer’s name, brand name and installation instructions intact and legible. Deliver in sufficient quantity to permit work to continue without interruption.

B. Comply with the manufacturer’s written instructions for proper material storage.

1. Store materials between 60℉ and 80℉ in dry areas protected from water and direct sunlight. If exposed to lower temperature, restore to 60℉ minimum temperature before using.

2. Store materials containing solvents in dry, well ventilated spaces with proper fire and safety precautions. Keep lids on tight. Use before expiration of their shelf life.

C. Insulation must be on pallets, off the ground and tightly covered with waterproof materials.

Manufacturer’s wrap does not provide sufficient waterproofing.

D. Any materials which are found to be damaged shall be removed and replaced at the contractor’s expense.

1.05 WORK SEQUENCE

A. Schedule and execute work to prevent leaks and excessive traffic on completed roof sections. Care shall be exercised to provide protection for the interior of the building and to ensure water does not flow beneath any completed sections of the membrane system.

B. Do not disrupt activities in occupied spaces.

1.06 USE OF THE PREMISES

A. Before beginning work, the roofing contractor shall secure approval from the COR for the following:

1. Areas permitted for personnel parking. Only 4 parking spaces shall be provided for contractor use.

2. Access to the site.

3. Areas permitted for storage of materials and debris.

4. Areas permitted for the location of cranes, dumpster, hoists and chutes for loading and unloading materials to and from the roof.

B. Interior stairs or elevators may not be used for removing debris or delivering materials, except as authorized by COR.

1.07 EXISTING CONDITIONS

A. If discrepancies are discovered between the existing conditions and those noted on the drawings, immediately notify the owner’s representative by phone and solicit the manufacturer’s approval prior to commencing with the work. Contractor shall make the building watertight until the discrepancies are resolved.

1.08 PRE-CONSTRUCTION CONFERENCE

A. Prior to bid submittal, the roofing contractor shall schedule a job site inspection to observe actual conditions and verify all dimensions on the roof. The job site inspection may occur on the day of the pre-bid meeting or prior to such a meeting. Should access to the roof be necessary before Bid Date the contractor shall contact the COR, Ron Guilmette to coordinate an appropriate time. 48 hours’ notice is required for site visits.

1.09 TEMPORARY FACILITIES AND CONTROLS

A. Temporary Utilities:

1. Water, power for construction purposes are available at the site and will be made available to the roofing contractor.

2. The contractor shall supply all hoses, valves and connections for water from source if designated by the owner when made available. Provide OSHA and NEC approved extension cords as required.

3. The contractor shall provide portable sanitation (Port-o-Jon’s) facilities prior to the start of work.

4. The contractor shall provide temporary debris fence on the building roof. See Job site protection.

B. Security: Obey the owner’s requirements for personnel identification, inspection and other security measures.

1.10 JOB SITE PROTECTION

A. The contractor shall adequately protect building, paved areas, service drives, lawn, shrubs, trees, etc. from damage while performing the required work. Provide canvas, boards and sheet metal (properly secured) as necessary for protection and remove protection material at completion. The contractor shall repair or be responsible for costs to repair all property damaged during the roofing application.

B. During the roofing contractor’s performance of the work, the building owner will continue to occupy the existing building. The contractor shall take precautions to prevent the spread of dust and debris, particularly where such material may shift into the building. The roofing contractor shall provide labor and materials to construct, maintain and remove necessary temporary enclosures to prevent dust or debris in the construction area(s) from entering the remainder of the building.

Take all steps to ensure no debris is blown off the building, including fencing and other debris catching systems. DO NOT allow insulation, pieces of insulation, or roofing material to be blown off during demolition.

C. Do not overload any portion of the building, either by use of or placement of equipment, storage of debris, or storage of materials. This is a wood frame building.

D. Protect against fire and flame spread. Maintain proper and adequate fire extinguishers within fifty

(50) feet of any open flames. If any heated or flamed application is utilized a 15 lb or larger fire extinguisher shall be on the roof at all times.

E. Take precautions to prevent drains from clogging during the roofing application. Remove debris at the completion of each day’s work and clean drains, if required. At completion, test drains to ensure the system is free running and drains are watertight. Remove strainers and plug drains in areas where work is in progress. Install flags or other telltales on plugs. Remove plugs each night and screen drain.

F. Store moisture susceptible materials above ground and protect with waterproof coverings.

G. Remove all traces of piled bulk materials and return the job site to its original condition upon completion of the work.

H. The roofing contractor shall remove all debris from the job site in a timely and legally acceptable manner so as to not detract from the aesthetics or the functions of the building.

1.11 SAFETY

A. The contractor shall be responsible for all means and methods as they relate to safety and shall comply with all applicable OSHA, local, state and federal requirements. Safety shall be the responsibility of the roofing contractor. All related personnel shall be instructed daily to be mindful of the full time requirement to maintain a safe environment for the facility’s occupants including staff, visitors, customers and the occurrence of the general public on or near the site.

B. The contractor shall keep the project site in a neat an orderly condition at all times.

C. Five days prior to start of work contractor shall submit a safety plan, to include but not limited to, ladders, hoists, cranes, harness, open flames, wind, debris, cleanup, and emergency procedures.

1.12 WORKMANSHIP

A. Applicators installing new roof, flashing and related work shall be factory trained and approved by the manufacturer they are representing.

B. All work shall be of highest quality and in strict accordance with the manufacturer’s published specifications and to the building owner’s satisfaction.

C. There shall be a supervisor on the job site at all times while work is in progress. The supervisor shall be an employee of the general contractor.

1.13 QUALITY ASSURANCE

A. The TPO roofing system must achieve all local and state building code requirements and must have been successfully tested to meet or exceed the calculated uplift pressure required by the International Building Code (ASCE-7) or ANSI/SPRI WD-1.

B. The manufacturer must have a minimum of 20 years of experience in the manufacturing of TPO sheeting.

C. Unless otherwise noted in this specification, the roofing contractor must strictly comply with the manufacturer’s current specifications and details.

D. The roofing system must be installed by an authorized and trained applicator by the manufacturer in compliance with shop drawings as approved by the manufacturer. The roofing applicator shall be thoroughly experienced and upon request be able to provide evidence of having at least seven

(7) years successful experience installing TPO roofing systems and having installed at least one (1) roofing application or several similar systems of equal or greater size within one year.

E. Provide adequate number of experienced workmen regularly engaged in this type of work who are skilled in the application techniques of the materials specified. Provide at least one thoroughly trained and experienced superintendent on the job at all times roofing work is in progress.

F. There shall be no deviations made from this specification or the approved shop drawings without the prior written approval of the COR. Any deviation from the manufacturer’s installation procedures must be supported by a written certification on the manufacturer’s letterhead and presented for the specifier’s consideration.

G. Upon completion of the installation, the applicator shall arrange for an inspection to be made by a non-sales technical representative of the membrane manufacturer in order to determine whether or not corrective work will be required before the warranty will be issued. Notify the COR seventy-two (72) hours prior to the manufacturer’s final inspection.

H. The TPO membrane meets the CRRC (California Roof Rating Council) requirements for reflectance and emittance. When tested in accordance with ASTM C1549, material has an initial solar reflectance of .76 and a 3-year aged reflectance of .64. The material has also been tested for emittance in accordance with ASTM C1371; an initial emittance of .90 and a 3-year aged emittance of .87 were achieved.

I. The TPO membrane meets the emittance requirements set forth by the USGBC (U. S. Green

Building Council) for their LEED (Leadership in Energy and Environmental Design) Program.

The material has an emittance of .91 (when tested in accordance with ASTM E408) and an SRI (solar reflectance index) of 105 (calculated using ASTM E 1980).

J. Perform Work in accordance with NRCA Roofing and Waterproofing Manual and manufactures recommendations.

K. Roof Assembly Classification: Wind uplift requirement of 1-90, in accordance with FM DS 1-28.

L. Fire Rated Roof Construction: Determined in accordance with ASTM E119.

M. Roof Assembly Fire Classification: When tested in accordance with ASTM E108 and UL 790.

Roof Assembly with Foam Insulation: Passes FM 4450 or UL 1256.

N. Surface Burning Characteristics: Foam Insulation: Maximum 75/450 flame spread/smoke developed index when tested in accordance with ASTM E84.

O. Do not install membrane during inclement weather or forecasted inclement when air temperature may fall below 40 degrees F or below manufactures recommendation

P. All substitution requests for products, equipment, materials and methods described within the contract documents shall be submitted to the COR. Substitutions request are not permitted prior to the Notice to Proceed. Substitute products will be considered when the request is submitted in writing to the COR. The COR will have seven (7) working days to approve /disapprove substitution request. Substitution request shall not result in schedule extensions. Substitution request shall include:

i. Two complete copies of the manufacturers technical data and cut sheets, with sufficient information and product data to allow the COR to make a timely decision,

ii. The reason for the substitution,

iii. A comparison of delivery time,

iv. Samples,

v. Substitutions shall meet or exceed all requirements of specified materials, products, equipment and methods described within the contract documents,

vi. Contractor shall not be entitled to extra compensation for substitution request whether approved or disapproved,

vii. If the cost of the substitution is less than the specified products, materials, equipment or methods the difference in cost shall be credit to the government.

Viii Certified cost of specified and proposed products, equipment, materials and methods.

1.14 JOB CONDITIONS, CAUTIONS AND WARNINGS

A. Safety Data Sheets (SDS) must be on location at all times during the transportation, storage and application of materials. A separate set shall be given to the COR five (5) days prior to starting of the work.

B. When positioning membrane sheets, exercise care to locate all field splices away from low spots and out of drain sumps. All field splices should be shingled to prevent bucking of water.

C. When loading materials onto the roof, the contractor shall comply with the requirements of the

COR to prevent overloading and possible disturbance to the building structure.

D. Proceed with roofing work only when weather conditions are in compliance with the manufacturer’s recommended limitations, and when conditions will permit the work to proceed in accordance with the manufacturer’s requirements and recommendations.

E. Proceed with work so new roofing materials are not subject to construction traffic. When necessary, new roof sections shall be protected and inspected upon completion for possible damage.

F. Provide protection for all roof areas exposed to traffic during construction.

G. The surface on which the insulation or roofing membrane is to be applied shall be clean, smooth, dry, and free of projections or contaminants that would prevent proper application of or be incompatible with the new installation, such as fins, sharp edges, foreign materials, oil and grease.

H. New roofing shall be complete and weather tight at the end of the work day.

I. Contaminants such as grease, and oils shall not be allowed to come in direct contact with the roofing membrane.

J. There is no stationary roof access. Contractor shall supply staging, ladders, lifts and other equipment to access the roof.

1.15 WARRANTY

A. Provide manufacturer’s 20 years Total System Warranty covering both labor and material with no dollar limitation. The maximum wind speed coverage shall be peak gusts of (90) measured at 10 meters above ground level. Certification is required with bid submittal indicating the manufacturer has reviewed and agreed to such wind coverage.

B. Evidence of the manufacturer’s warranty reserve shall be included as part of the project submittals for the COR’S approval.

C. Pro-rated System Warranties shall not be accepted.

PART 2 PRODUCTS

2.01 GENERAL

A. All components of the specified roofing system shall be products incorporated or accepted by TPO manufacture as compatible.

B. Unless otherwise approved by the COR and accepted by the membrane manufacturer, all products

(including insulation, fasteners, fastening plates and edgings) shall be manufactured and supplied by the roofing system manufacturer and covered by the warranty.

C. Manufacturers:

1. Carlisle Syntec Sure-Weld 60-mil TPO Systems.

2. Approved Equal (see section 1.13. P)

D. Minimum requirements:

Properties ( min requirements) Test Results

Breaking Strength ASTM D751 250 (1.1) min 360 (1.6) typ Elongation ASTM D751 15 min 25 type Tear resistance SATM D624 200 lbf/in Tear Strength ASTM D751 55(245) min.130 (578) typ Water Absorption Resistance Mass % top surface only 166 Hrs. 158 ℉ water

ASTM D471 +8.0, -2.0 Change in mass, max %

Water Vapor Permeance (perms)

ASTM E96 Proc B .10 max perm

Puncture resistance lbf FTM 101c,method 2031

ASTM 300 (1.3) min. 350 (1.6)typ

Low Temperature Brittleness ASTM D751 -40 degrees (46) typ

Uplift Table

2.02 Thermoplastic TPO

Membrane: 60-mil Sure-Weld TPO membrane adhered with CAV-Grip III Adhesive.

2.03 INSULATION/UNDERLAYMENT

Insulation: Minimum thickness of 4.5-inch Tapered SecurShield™ Polyisocyanurate insulation [4 'x 4' boards] adhered with Flexible FAST™ Adhesive at 6" on center bead spacing across the entire roof.

Carlisle SecurShield HD Composite – Composite insulation panel comprised of ½-inch high-density Polyisocyanurate cover board laminated during the manufacturing process to SecurShield rigid roof insulation meeting ASTM C1289 Type II, Class2, Grade 3 (25 psi). 3” thick, 4’ x 4’ panels.

4’ x 4’ panels shall be factory manufactured sheets, cutting of 4’ x 8’ sheets to meet the required 4’ x 4’ sheets shall not be permitted.

A. Tapered Sheets shall be Carlisle Secure Shield HD Composite.

2.04 Main Building Tapper plan

2.05 ADHESIVES, CLEANERS AND SEALANTS

All products shall be furnished by same manufacturer and specifically formulated for the intended purpose.

A. Bonding Adhesive:

B. Splicing Cement:

C. Splice Tape and Primer: Factory-Applied Tape (FAT)

D. Cleaning Solvent: Weathered Membrane Cleaner

E. Internal Seam Sealant: used with adhesive splices only

F. External Seam Sealant: Lap Sealant

G. Pocket Sealant: Pourable Sealer

H. Carlisle OlyBond 500 BA

2.07 METAL EDGING AND MEMBRANE TERMINATIONS

SecurEdge 2000 metal edging (bronze) compatible with installed roof system.

2.08 DOWNSPOUT & SCUPPERS

A. Downspout shall be corrugated 4” x 5”.

B. Aluminum 0.04”.

C. Downspout shall have an elbow at the bottom. Corrugated aluminum 0.04”.

D. Fasteners, supports per manufactures recommendations and sufficient in numbers and size to meet or exceed a maximum wind speed coverage shall be peak gusts of (90) measured at 10 meters above ground level.

E. Scupper shall be in sufficient size and shape to shed water from the roof meeting all requirements stated in the contract documents. In no case shall the scupper opening be smaller than the existing scuppers. Material used shall be of the same thickness of existing scuppers. Scuppers shall be constructed of aluminum, Bronze in color.

2.09 OTHER MATERIALS

A. The contractor shall supply and install wood blocking, nailers, cants and other materials as needed to secure proper height above insulation.

PART 3 EXECUTION

3.01 GENERAL

A. Comply with the manufacturer’s published instructions for the installation of the membrane roofing system including proper substrate preparation, jobsite considerations and weather restrictions.

B. Position sheets to accommodate contours of the roof deck and shingle splices to avoid bucking water.

C. Verify that substrate is sound, clean, and free of oil, grease, and materials or substances that may impede adhesive bond.

D. Ensure that the insulation boards and adjacent materials are compatible.

E. Verify new roof system has adequate slope to ensure positive drainage to existing roof drains.

F. Place tapered roofing material (insulation, DensDeck, membrane) to ensure there is no ponding or standing water.

G. Relocate, raise and/or move any obstacle preventing work from meeting all requirements within the contract documents.

H. Relocate, raise and/or move any obstacle preventing work from meeting all requirements within the contract documents, including HVAC equipment, conduits, communication equipment and other obstacles or equipment on the roof.

3.02 INSULATION PLACEMENT

A. Install insulation or membrane underlayment over the substrate with boards butted tightly together with no joints or gaps greater than 1/4 inch. Stagger joints both horizontally and vertically if multiple layers are provided.

B. Prior to placing insulation adhesive. Ensure roof is 100% dry before placing adhesive and insulation. Remove all debris, scrapes, waste, dirt and grime and prime as necessary.

C. Pitch roof to provide positive drainage to all rooftop drain and scuppers.

D. Insulation shall be a minimum thickness of 4 ½” inches to provide R-30.

3.03 MEMBRANE PLACEMENT AND BONDING

A. Unroll and position membrane without stretching. Allow the membrane to relax for approximately 1/2 hour before bonding. Fold the sheet back onto itself so half the underside of the membrane is exposed.

Membrane Securement / Fastening - 60-mil Sure-Weld TPO membrane adhered with CAV-Grip III Adhesive.

3.04 MEMBRANE SPLICING

A. Allow adhesive to flash-off until it does not string but remains tacky to a dry finger touch.

CAUTION: Care must be exercised to ensure proper drying.

B. Avoid thin areas of adhesive because over drying can occur and proper adhesion may not be achieved.

C. Roll the coated membrane into the coated substrate while avoiding wrinkles.

D. Brush down the bonded section of the membrane sheet immediately after rolling the membrane into the adhesive with a soft bristle push broom to achieve maximum contact.

E. Fold back the unbonded half of the sheet and repeat the bonding procedures.

F. Apply Bonding Adhesive to the remaining exposed underside of membrane and adjacent substrate and complete this section as described above.

G. Install adjoining membrane sheets in the same manner, overlapping edges a minimum of 2 inches to provide for a minimum 1-1/2 inch heat weld. It is recommended that all splices be shingled to avoid bucking of water.

3.05 DOWNSPOUT & SCUPPERS

A. Install downspouts, Scuppers and fasteners per manufactures recommendation to meet or exceed Category 3 wind loads.

3.06 FLASHING

A. Curb flashing shall be one piece cured TPO membrane. Continue the deck membrane as wall flashing where practicable.

B. Follow manufacturer’s typical flashing procedures for all curb, and penetration flashing including metal edging/coping and roof drain applications.\

3.07 Roof top deck drains

A. The contractor shall provide new deck drain hardware and covers. drains and covers.

3.08 DAILY SEAL

A. On phased roofing, when the completion of flashings and terminations is not achieved by the end of the work day, a daily seal must be performed to temporarily close the membrane to prevent water infiltration.

B. Complete an acceptable membrane seal in accordance with the manufacturer’s requirements.

3.09 CLEAN UP

A. Perform daily clean-up to collect all wrappings, empty containers, paper, and other debris from the project site. Upon completion, all debris must be disposed of in a legally acceptable manner.

B. Prior to the manufacturer’s inspection for warranty, the applicator must perform a pre-inspection to review all work and to verify all flashing has been completed as well as the application of all caulking.

3.10 PERIOD OF PERFORMANCE

A. Upon notice to proceed. Contractor shall be required to complete work within 40 calendar days.

APPENDIX 1

ACRONYMS

American Concrete Institute ACI Asbestos Containing Material ACM American Institute of Steel Construction AISC American National Standards Institute ANSI American Plywood Association APA American Society of Civil Engineers ASCE Above ground Storage Tank AST American Society for Testing and Materials ASTM American Society of Mechanical Engineers ASME American Welding Society AWS Best Management Practices BMP Building Officials and Code Administrators BOCA Clean Air Act CAA Chain Link Fence Manufacturing Institute CLFMI Cubic Feet per Minute CFM Code of Federal Regulation CFR Concrete Masonry Unit CMU Concrete Conc Contracting Officer CO Contracting Officers Representative COR Contracting Officers Technical Representative COTR Clean Water Act CWA Demarcation Point DEMARC Demolition Demo Drawings Dwgs Ethylene Propylene Diene Monomer EDPM Elevation Elev Encased Burial EB Environmental Protection Agency EPA Feet Ft Factory Mutual FM Finish Floor FF Fire Rated FR Gauge Ga General Contractor GC Gallons per Minute GPM Gypsum GYP Gypsum Association GA International Organization for Standardization ISO Inch In Information Technology IT Institute of Electrical and Electronic Engineers IEEE Linear Feet LF Maximum MAX

Metal Lath/Steel Framing Association ML/SFA Material Safety Data Sheets MSDS National Electric Code NEC National Fire Protection Association NFPA National Institute of Standards and Technology NIST Notice To Proceed NTP Not To Scale NTS On Center OC Ounce OZ Outside Diameter OD Occupational Safety and Health Act OSHA Metal Lath/Steel Framing Association ML/SFA Mile Per Hour MPH National Electric Manufactures Association NEMA Not To Scale NTS Pounds lbs Parts Per Billion PPB Parts Per Million PPM Pounds per Square Inch PSI Polyvinyl Chloride PVC Resource Conservation and Recovery Act RCRA Schedule Sch Sound Transmission Class STC Statement Of Work SOW Steel Door Institute SDI Square Sq Square Feet SF Thick Thk Typical Typ Uniform Construction Code UCC Underground Storage Tank UST Underwriters Laboratories UL Volatile Organic Carbon VOC Welded Wire Fabric WWF Western Wood Products Association WWPA

Existing roof top equipment:

(10) Roof top exhaust fans 30 ½” X 30 ½”. 11’’ curbing

(6) Rooftop exhaust fans 20 ½” x 20 ½” 4” curbing

(1) Roof Top exhaust fan 32 ½ “ x 32 ½” 11” curbing

(2) Boiler stacks 24” diameter 9 “ curbing

(1) Natural gas pipe with 8 saddle supports Cooling tower footings (4) 13 ½” X 13 ½” footings. 6 ½” curbing Cooling tower Penetrations:

(2) 4” steel pipes (1) ¾” copper water pipe feed.

(1) ¾” rigid electrical

(2) Fume hoods 9”X9” boots 14” exhaust duct.

(2) Refrigeration units 3 penetrations.

Plumbing vent pipe: (9) 2 inch. (6) 4 inch.

PART 4:01 EXISTING ROOFING AND EQUIPMENT

Pictures:

See drawings in supporting documents. (not as built).

Reference only.