Addendum Three.pdf

COMMONWEALTH OF KENTUCKY

DEPARTMENT FOR FACILITIES AND SUPPORT SERVICES

DIVISION OF ENGINEERING AND CONTRACT ADMINISTRATION

INVITATION TO BID NO: RFB-129-24

FOR: Re-Ad of RFB-02-24 Roof Replacement Maysville Community & Technical College Kentucky Community & Technical College System Mason County, Kentucky

DATE: February 1, 2024

RFB-785-2400000323

ADDENDUM NO. Three (3)

BIDDER SHALL CONFORM TO THE FOLLOWING CHANGES AS SAME SHALL BECOME BINDING

UPON THE CONTRACT TO BE ISSUED IN RESPONSE TO THIS INVITATION TO BID.

Item 1: Refer to addendum to be distributed by Lynn Imaging for all additions, deletions, and/or changes to specifications and/or drawings.

Item 2: The Official Bid date has moved February 9, 2024, at 2:00 P.M. Eastern Time; bid reading

Information will remain the same.

END OF ADDENDUM

Invitation to Bid No. RFB-129-24 For: Re-Ad of RFB-02-24 Roof Replacement Maysville Community & Technical College Kentucky Community & Technical College System Mason County, Kentucky

Susan Ward, Statewide Procurement Analyst II Division of Engineering and Contract Administration

KCTCS - Roof Replacement Maysville Community Technical College Maysville, Kentucky Acct No: 470-CARF-MV53-00

ADDENDUM NO. 3 009113 - 1

SECTION 009113 – ADDENDUM NO. 3

PART 1 - GENERAL

1.1 GENERAL

A. This Addendum forms a part of the Contract Documents and modifies the original Bidding Documents and previously issued Addenda, as noted below.

1. All unmodified portions remain if full force and effect.

2. Acknowledge receipt of this Addendum in the space provided on the Bid Form.

3. Failure to do so may subject Bidder to disqualification

B. Summary of Attachments:

1. Summary of Documents Attached for Reference: None.

2. Summary of Project Manual Documents Attached:

a. Supplemental Specifications: None.

b. Revised Specifications:

1) SECTION 075600 - FLUID-APPLIED ROOFING

2) SECTION 076200 - SHEET METAL FLASHING AND TRIM

3. Summary of Drawings Attached: The following drawings are attached to and are part of this Addendum:

a. Supplemental Drawings: None.

b. Revised Drawings:

1) Drawing A.1 ADMINISTRATION BUILDING ROOF PLAN

2) Drawing A.2 DENHAM BUILDING ROOF PLAN

3) Drawing A.3 DETAILS

C. Summary of Deletions: None.

1.2 CHANGES TO PRIOR ADDENDA

A. None.

1.3 CHANGES TO PROCUREMENT AND CONTRACTING REQUIREMENTS

A. None.

ADDENDUM NO. 3 009113 - 2

1.4 CHANGES TO GENERAL REQUIREMENTS

A. None.

1.5 CHANGES TO SPECIFICATIONS

A. SECTION 075600 - FLUID-APPLIED ROOFING:

1. REVISE Article 1.9 WARRANTY, Paragraph A, Subparagraph 1 to read as follows:

"1. Warranty Period: 10-year, from date of Substantial Completion."

B. SECTION 076200 - SHEET METAL FLASHING AND TRIM:

1. DELETE Article 2.5 LOW-SLOPE ROOF SHEET METAL FABRICATIONS, Paragraph C, Subparagraph 1 in its entirety and REPLACE with the following Subparagraph:

"1. Galvanized Steel: 0.028 inch thick."

2. DELETE Article 2.5 LOW-SLOPE ROOF SHEET METAL FABRICATIONS, Paragraph D, Subparagraph 1 in its entirety and REPLACE with the following Subparagraph:

"1. Galvanized Steel: 0.028 inch thick."

3. DELETE Article 2.5 LOW-SLOPE ROOF SHEET METAL FABRICATIONS, Paragraph H, Subparagraph 1 in its entirety and REPLACE with the following Subparagraph:

"1. Galvanized Steel: 0.028 inch thick."

4. ADD the following Paragraph to Article 2.5 LOW-SLOPE ROOF SHEET METAL

FABRICATIONS:

"I. Slip-Up Flashing: Shop fabricate interior and exterior corners. Fabricate from the following materials:

1. Galvanized Steel: 0.028 inch thick."

1.6 CHANGES TO DRAWINGS

A. Changes to Architectural Drawings:

1. REVISED DRAWING A.1 ADMINISTRATION BUILDING ROOF PLAN:

a. REVISE Detail 3 of Slip Up Flashing as indicated on Revised Drawing.

ADDENDUM NO. 3 009113 - 3

2. REVISED DRAWING A.2 DENHAM BUILDING ROOF PLAN:

a. REVISE Detail D of Electrical Penetration Hood as indicated on Revised Drawing.

3. REVISED DRAWING A.3 DETAILS:

a. REVISE Detail G of Expansion Joint as indicated on Revised Drawing.

b. REVISE Detail K of Counter Flashing as indicated on Revised Drawing.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION (NOT USED)

END OF ADDENDUM NO. 3

FLUID-APPLIED ROOFING 075600 - 1

SECTION 075600 - FLUID-APPLIED ROOFING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Fluid-applied elastic, thermoplastic rubber based roof coating system.

1.2 DEFINITIONS

A. Roofing Terminology: See ASTM D1079 and glossary of NRCA's "The NRCA Roofing and

Waterproofing Manual" for definition of terms related to roofing work in this Section.

B. "Approved": When used to convey Architect's action on Contractor's submittals, applications, and requests, "approved" is limited to Architect's duties and responsibilities as stated in the

Conditions of the Contract.

C. "Directed": A command or instruction by Architect. Other terms including "requested,"

"authorized," "selected," "required," and "permitted" have the same meaning as "directed."

D. "Indicated": Requirements expressed by graphic representations or in written form on

Drawings, in Specifications, and in other Contract Documents. Other terms including "shown,"

"noted," "scheduled," and "specified" have the same meaning as "indicated."

E. "Regulations": Laws, ordinances, statutes, and lawful orders issued by authorities having jurisdiction, and rules, conventions, and agreements within the construction industry that control performance of the Work.

F. "Furnish": Supply and deliver to Project site, ready for unloading, unpacking, assembly, installation, and similar operations.

G. "Install": Unload, temporarily store, unpack, assemble, erect, place, anchor, apply, work to dimension, finish, cure, protect, clean, and similar operations at Project site.

H. "Provide": Furnish and install, complete and ready for the intended use.

I. "Project Site": Space available for performing construction activities. The extent of Project site is shown on Drawings and may or may not be identical with the description of the land on which Project is to be built.

J. “Manufacturer Qualifications”: A firm experienced in manufacturing products or systems similar to those indicated for this Project and with a record of successful in-service performance, as well as sufficient production capacity to produce required units. As applicable, FLUID-APPLIED ROOFING 075600 - 2 procure products from manufacturers able to meet qualification requirements, warranty requirements, and technical or factory-authorized service representative requirements.

K. “Installer Qualifications”: A firm or individual experienced in installing, erecting, applying, or assembling work similar in material, design, and extent to that indicated for this Project, whose work has resulted in construction with a record of successful in-service performance.

L. “Testing and Inspecting Agency Qualifications”: An NRTL, an NVLAP, or an independent agency with the experience and capability to conduct testing and inspection indicated, as documented in accordance with ASTM E329, and with additional qualifications specified in individual Sections; and, where required by authorities having jurisdiction, that is acceptable to authorities.

1.3 PREINSTALLATION MEETINGS

A. Preliminary Roofing Conference: Before starting roof deck construction, conduct conference at

Project Site.

1. Meet with Owner, Architect, Owner's insurer if applicable, testing and inspecting agency representative, roofing Installer, roofing system manufacturer's representative, and installers whose work interfaces with or affects roofing, including installers of roof accessories and roof-mounted equipment.

2. Review methods and procedures related to roofing installation, including manufacturer's written instructions.

3. Review and finalize construction schedule, and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

4. Review substrate requirements for conditions and finishes, including flatness.

5. Review structural loading limitations of roof deck during and after roofing.

6. Review base flashings, special roofing details, roof drainage, roof penetrations, equipment curbs, and condition of other construction that affects roofing system.

7. Review governing regulations and requirements for insurance and certificates if applicable.

8. Review temporary protection requirements for roofing during and after installation.

9. Review roof observation and repair procedures after roofing installation.

1.4 ACTION SUBMITTALS

A. Product Data: For each type of product indicated.

1. Include manufacturer's written instructions for evaluating, preparing, and treating substrate; technical data; and tested physical and performance properties.

B. Samples for Initial Selection: For each type of roof coating product.

C. Samples for Verification: For each type of roof coating system and each color of roof coating.

FLUID-APPLIED ROOFING 075600 - 3

1.5 INFORMATIONAL SUBMITTALS

A. Qualification Data: For Installer.

B. Manufacturer Certificates: Signed by roofing manufacturer certifying that roofing system complies with requirements specified in "Performance Requirements" Article.

1. Submit evidence of compliance with performance requirements.

C. Sample Warranties: For manufacturer's special warranties.

1.6 QUALITY ASSURANCE

A. Regulatory Requirements: Comply with applicable codes, regulations, ordinances, and laws regarding use and application of products that contain volatile organic compounds (VOC).

1.7 DELIVERY, STORAGE, AND HANDLING

A. Deliver roofing materials to Project site in original containers with seals unbroken and labeled with manufacturer's name, product brand name and type, date of manufacture, approval or listing agency markings, and directions for storing and mixing with other components.

B. Handle and store roofing materials, and place equipment in a manner to avoid significant or permanent damage to deck or structural supporting members.

C. Store materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by manufacturer. Protect stored materials from direct sunlight.

D. Store materials in protected and well ventilated area. Handle materials to avoid damage.

1.8 FIELD CONDITIONS

A. Environmental Limitations: Do not deliver or install roof coating until roof openings, curbs, and parapets, if any, are complete and roof drains, vents, and other roof penetrations are in place.

B. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit roofing work to be performed according to roof coating manufacturer's written instructions and warranty requirements.

1. Apply materials within the range of ambient and substrate temperatures recommended by roofing material manufacturers, but not below 50 deg F.

2. Apply materials within range of relative humidity recommended by manufacturer of each component, but not when relative humidity exceeds 85 percent, nor when temperatures are less than 5 deg F above dew point.

3. Do not apply materials to damp or wet surfaces.

FLUID-APPLIED ROOFING 075600 - 4

4. Do not apply primers, or coatings in snow, rain, fog, or mist, or when such weather conditions are imminent during the application and curing period.

5. Do not apply coatings when wind conditions prevent uniform coating application.

C. Keep flammable products away from spark or flame. Do not allow the use of spark producing equipment during application and until all vapors have dissipated. Post "NO SMOKING" signs.

D. Maintain work area in a neat and orderly condition, removing empty containers, rags, and rubbish daily from the site.

1.9 WARRANTY

A. Special Warranty: Metal Roof Coating manufacturer's standard form in which manufacturer agrees to repair or replace coating that does not comply with requirements or that does not remain watertight within specified warranty period.

1. Warranty Period: 10-year, No Dollar Limit, from date of Substantial Completion.

B. Special Project Warranty: Submit roofing Installer's warranty, on warranty form at end of this

Section, signed by Installer, covering the Work of this Section, including all components of roofing system such as roof membrane, base flashing, roof insulation, fasteners, cover boards, substrate boards, vapor retarders, roof pavers, and walkway products, for the following warranty period:

1. Warranty Period: 2 years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Source Limitations: Obtain roofing materials from single source from single manufacturer.

B. Basis of Design Manufacturer: Subject to compliance with requirements, provide basis of design products identified in Part 2 of this Section manufactured by KARNAK, or provide comparable products by one of, but not limited to, the following manufacturers:

1. American Chemical Technologies Corp.; a Geocel company.

2. ERSystems, Inc.

3. Everest Coatings, Inc.

4. National Coatings Corporation.

5. Neogard; Div. of Jones-Blair Company.

6. SWD Urethane Company.

7. TOPCOAT, subsidiary of GAF Materials Corporation.

8. United Coatings.

9. Uniflex Fluid Applied Roofing Systems.

FLUID-APPLIED ROOFING 075600 - 5

2.2 PERFORMANCE REQUIREMENTS

A. General Performance: Installed roofing and base flashings shall withstand specified uplift pressures, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction. Roofing and base flashings shall remain watertight.

B. Watertightness: Provide coating of existing metal roof panels that is watertight and will not permit the passage of water.

C. Material Compatibility: Provide elastomeric coatings, and miscellaneous roofing materials that are compatible with one another and able to bond to substrate under conditions of service and application required, as demonstrated by roof coating manufacturer based on testing and field experience.

2.3 ROOF COATING SYSTEM

A. Base Coat: A self-priming, highly elastic, thermoplastic rubber, single component, coating with a built-in rust inhibitor, complying with ASTM D 6083 Type 1 (except solvent based).

1. Basis of Design Product: 405 Bond-N-Shield by Karnak (Asphalt Surface Base Coat).

2. Properties:

a. Weight per Gallon: 11.4 lbs.

b. Viscosity: 34,000 cps ASTM D2196 Method A

c. Solids by Weight: 65%, Nominal

d. Solids by Volume: 53%, Nominal

e. Color: Light Blue

f. Hardness, Shore A: 60

g. Elongation: 800%, Nominal ASTM D 2370

h. Tensile Strength: 249 PSI, Nominal ASTM D2370

i. Tear Resistance: 83 lbs. force/in. ASTM D 624

j. Permeability: 3.0 perms

k. Cure Time: 24 to 48 hours @ 77°F and 50% Relative Humidity

l. Application Temp.: 40°F to 120°F.

m. Service Temp (Cured Film): -15°F to 180°F.

B. Finish Coat: A highly elastic, thermoplastic rubber based, single component exterior waterproofing coating, complying with ASTM D 6083 Type 1 (except solvent based).

1. Basis of Design Product: 502 RC-W Elasto-Kote Finish Coat.

2. Properties:

a. Solids by Weight: 54 percent.

b. Solids by Volume: 40 percent.

c. Permeability: 0.01 perm.

d. Hardness, Shore A: 65.

e. Elongation: 715 percent, ASTM D 2370.

f. Tensile Strength: 1180 PSI, nominal, ASTM D 2370.

FLUID-APPLIED ROOFING 075600 - 6

g. Water Absorption (7 days): 0.4 percent.

h. Color: As select by Architect from full range of manufacturer’s standard colors.

i. Dry Film Thickness: 24 mils.

j. VOC Content: Less than 550 g/L.

2.4 AUXILIARY ROOFING MEMBRANE MATERIALS

A. Preparation Cleaning Solution: A concentrated liquid Trisodium Phosphate (TSP) substitute product specifically designed to clean roof surfaces prior to applying coatings.

1. Basis of Design Product: 799 Wash-N-Prep Roof Cleaner.

2. Properties:

a. VOC Content: 0 g/L maximum.

b. pH: 10.0-11.0

B. Sealant: An elastomeric, single component, thermoplastic-rubber mastic.

1. Basis of Design Product: 502MS Karna-Flex.

2. Properties:

a. Solids by Weight: 66%, Nominal.

b. Solids by Volume: 57%, Nominal.

c. Color: As select by Architect from full range of manufacturer’s standard colors.

d. Elongation: 900%, Nominal, ASTM D 412, minimum.

e. Tensile Strength: 160 PSI, Nominal, ASTM D412, minimum.

f. Accelerated Weathering: Pass/No Cracks, ASTM G155 after 1,000 hrs.

g. Firm Set: Pass, ASTM D 2939.

h. VOC Content: Less than 490 g/L maximum.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements and other conditions affecting performance of the Work:

1. Verify that roof openings and penetrations are in place, curbs are set and braced, and roof drain bodies are securely clamped in place.

2. Verify that wood cants, blocking, curbs, and nailers are securely anchored to roof deck at penetrations and terminations.

B. Proceed with installation only after unsatisfactory conditions have been corrected and substrates are dry.

FLUID-APPLIED ROOFING 075600 - 7

3.2 SURFACE PREPARATION

A. Power wash existing metal roof panels and prepare substrate according to coating manufacturer's written instructions.

1. Provide clean, dust-free, dew-free, and dry substrate for coating application.

B. Remove grease, oil, form-release agents, curing compounds, and other contaminants from substrate.

C. Prime substrate if recommended by roof coating manufacturer.

D. Mask off adjoining surfaces not receiving roofing to prevent spillage from affecting other construction.

E. Prevent materials from entering and clogging roof drains and conductors and from spilling or migrating onto surfaces of other construction.

1. Remove roof-drain plugs when no work is taking place or when rain is forecast.

F. Weather surfaces as recommended by coating manufacturer.

3.3 APPLICATION OF ROOFING MEMBRANE

A. General: Apply roof coating in compliance with recommendations in NRCA's "Quality Control

Guidelines for the Application of Roof Coating.”

B. Allow existing metal roof panels to dry from power washing and remove dust, dirt, water, and other contaminants before applying coating.

C. Apply coating system to existing metal panel roofing, in two or more coats and according to roof coating manufacturer's written instructions, by spray, roller, or other suitable application method.

D. Apply primer, at manufacturer's recommended rate, over prepared substrate and allow to dry.

E. Sealant: Apply sealant to perimeter and other terminations where indicated or required by roof coating manufacturer.

F. Apply base coat and one or more topcoats to obtain a uniform, seamless membrane free of blisters and pinholes. Apply each coat at right angles to preceding coat, using contrasting colors for successive coats.

1. Apply base coat on same day as power washing.

2. Apply topcoat(s) after removing dust, dirt, water, and other contaminants from base coat.

G. Cure coatings according to coating manufacturer's written instructions, taking care to prevent contamination and damage during application stages and curing. Do not permit traffic on uncured coatings.

FLUID-APPLIED ROOFING 075600 - 8

3.4 PROTECTING AND CLEANING

A. Protect roofing system from damage and wear during remainder of construction period. When remaining construction does not affect or endanger roofing, inspect roofing for deterioration and damage, describing its nature and extent in a written report, with copies to Architect and Owner.

1. Cover membrane with a protective covering with overlapped joints before membrane is subject to construction traffic.

B. Correct deficiencies in or remove roofing system that does not comply with requirements, repair substrates, and repair or reinstall roofing system to a condition free of damage and deterioration at time of Substantial Completion and according to warranty requirements.

C. Clean overspray, spillage, and soiling from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction.

END OF SECTION 075600

SHEET METAL FLASHING AND TRIM 076200 - 1

SECTION 076200 - SHEET METAL FLASHING AND TRIM

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:`

1. Formed low-slope roof sheet metal fabrications.

1.2 DEFINITIONS

A. "Approved": When used to convey Architect's action on Contractor's submittals, applications, and requests, "approved" is limited to Architect's duties and responsibilities as stated in the

Conditions of the Contract.

B. "Directed": A command or instruction by Architect. Other terms including "requested,"

"authorized," "selected," "required," and "permitted" have the same meaning as "directed."

C. "Indicated": Requirements expressed by graphic representations or in written form on

Drawings, in Specifications, and in other Contract Documents. Other terms including "shown,"

"noted," "scheduled," and "specified" have the same meaning as "indicated."

D. "Furnish": Supply and deliver to Project site, ready for unloading, unpacking, assembly, installation, and similar operations.

E. "Install": Unload, temporarily store, unpack, assemble, erect, place, anchor, apply, work to dimension, finish, cure, protect, clean, and similar operations at Project site.

F. "Provide": Furnish and install, complete and ready for the intended use.

G. "Project Site": Space available for performing construction activities. The extent of Project site is shown on Drawings and may or may not be identical with the description of the land on which Project is to be built.

H. “Fabricator Qualifications”: A firm experienced in producing products similar to those indicated for this Project and with a record of successful in-service performance, as well as sufficient production capacity to produce required units.

1.3 COORDINATION

A. Coordinate sheet metal flashing and trim layout and seams with sizes and locations of penetrations to be flashed, and joints and seams in adjacent materials.

SHEET METAL FLASHING AND TRIM 076200 - 2

B. Coordinate sheet metal flashing and trim installation with adjoining roofing and wall materials, joints, and seams to provide leakproof, secure, and noncorrosive installation.

1.4 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at Project Site.

1. Review construction schedule. Verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

2. Review special roof details, roof drainage, roof-penetration flashing, equipment curbs, and condition of other construction that affect sheet metal flashing and trim.

3. Review requirements for insurance and certificates if applicable.

4. Review sheet metal flashing observation and repair procedures after flashing installation.

1.5 ACTION SUBMITTALS

A. Product Data: For each type of product.

B. Shop Drawings: For sheet metal flashing and trim.

1. Include plans, elevations, sections, and attachment details.

2. Detail fabrication and installation layouts, expansion-joint locations, and keyed details.

Distinguish between shop- and field-assembled Work.

3. Include identification of material, thickness, weight, and finish for each item and location in Project.

4. Include details for forming, including profiles, shapes, seams, and dimensions.

5. Include details for joining, supporting, and securing, including layout and spacing of fasteners, cleats, clips, and other attachments. Include pattern of seams.

6. Include details of termination points and assemblies.

7. Include details of expansion joints and expansion-joint covers, including showing direction of expansion and contraction from fixed points.

8. Include details of roof-penetration flashing.

9. Include details of special conditions.

10. Include details of connections to adjoining work.

C. Samples for Initial Selection: For each type of sheet metal and accessory indicated with factory-applied finishes.

D. Samples for Verification: For each type of exposed finish.

1.6 INFORMATIONAL SUBMITTALS

A. Qualification Data: For fabricator.

B. Product Certificates: For each type roof edge flashing that is ANSI/SPRI/FM 4435/ES-1 tested.

SHEET METAL FLASHING AND TRIM 076200 - 3

C. Product Certificates: For each type of coping and roof edge flashing that is

ANSI/SPRI/FM 4435/ES-1 tested.

D. Sample Warranty: For special warranty.

1.7 CLOSEOUT SUBMITTALS

A. Maintenance Data: For sheet metal flashing and trim, and its accessories, to include in maintenance manuals.

B. Special warranty.

1.8 QUALITY ASSURANCE

A. Fabricator Qualifications: Employs skilled workers who custom fabricate sheet metal flashing and trim similar to that required for this Project and whose products have a record of successful in-service performance.

1. For copings and roof edge flashings that are ANSI/SPRI/FM 4435/ES-1 tested, shop shall be listed as able to fabricate required details as tested and approved.

1.9 DELIVERY, STORAGE, AND HANDLING

A. Do not store sheet metal flashing and trim materials in contact with other materials that might cause staining, denting, or other surface damage.

1. Store sheet metal flashing and trim materials away from uncured concrete and masonry.

2. Protect stored sheet metal flashing and trim from contact with water.

B. Protect strippable protective covering on sheet metal flashing and trim from exposure to sunlight and high humidity, except to extent necessary for period of sheet metal flashing and trim installation.

1.10 WARRANTY

A. Special Warranty on Finishes: Manufacturer agrees to repair finish or replace sheet metal flashing and trim that shows evidence of deterioration of factory-applied finishes within specified warranty period.

1. Exposed Panel Finish: Deterioration includes, but is not limited to, the following:

a. Color fading more than 5 Delta E units when tested in accordance with

ASTM D2244.

b. Chalking in excess of a No. 8 rating when tested in accordance with

ASTM D4214.

c. Cracking, checking, peeling, or failure of paint to adhere to bare metal.

SHEET METAL FLASHING AND TRIM 076200 - 4

2. Finish Warranty Period: 20 years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Sheet metal flashing and trim assemblies, including cleats, anchors, and fasteners, shall withstand wind loads, structural movement, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction. Completed sheet metal flashing and trim shall not rattle, leak, or loosen, and shall remain watertight.

B. Sheet Metal Standard for Flashing and Trim: Comply with NRCA's "The NRCA Roofing

Manual" and SMACNA's "Architectural Sheet Metal Manual" requirements for dimensions and profiles shown unless more stringent requirements are indicated.

C. Sheet Metal Standard for Copper: Comply with CDA's "Copper in Architecture Handbook."

Conform to dimensions and profiles shown unless more stringent requirements are indicated.

D. SPRI Wind Design Standard: Manufacture and install copings tested in accordance with

ANSI/SPRI/FM 4435/ES-1 and capable of resisting the following design pressure:

1. Design Pressure:

a. Horizontal (Outward): 35 psi.

b. Vertical (Upward): 90 psf.

E. FM Approvals Listing: Manufacture and install copings that are listed in FM Approvals'

"RoofNav" and approved for windstorm classification, Class 1-90. Identify materials with name of fabricator and design approved by FM Approvals.

F. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes to prevent buckling, opening of joints, overstressing of components, failure of joint sealants, failure of connections, and other detrimental effects. Base calculations on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss.

1. Temperature Change: 120 deg F, ambient; 180 deg F, material surfaces.

2.2 SHEET METALS

A. Protect mechanical and other finishes on exposed surfaces from damage by applying strippable, temporary protective film before shipping.

B. Copper Sheet: ASTM B370, cold-rolled copper sheet, H00 or H01 temper.

1. Source Limitations: Obtain sheet from single source from single manufacturer.

2. Nonpatinated, Exposed Finish: Mill.

SHEET METAL FLASHING AND TRIM 076200 - 5

C. Stainless Steel Sheet: ASTM A240/A240M, Type 304Type 304, dead soft, fully annealed; with smooth, flat surface.

1. Finish: ASTM A480/A480M, No. 2D (dull, cold rolled).

D. Metallic Coated Steel Sheet: Provide zinc coated (galvanized) steel sheet according to

ASTM A 653/A 653M, G90 coating designation; prepainted by coil-coating process to comply with ASTM A755/A755M.

1. Surface: Smooth, flat.

2. Exposed Coil Coated Finish:

a. 2-Coat Fluoropolymer: AAMA 621. Fluoropolymer finish containing not less than

70 percent polyvinylidene fluoride (PVDF) resin by weight in color coat. Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions.

3. Concealed Finish:

a. PVC Coated Metal: Manufacturer's standard heat-fused, non-reinforced PVC laminated to galvanized steel sheet metal.

4. Color: As selected by Architect from manufacturer's full range.

5. Concealed Finish: Pretreat with manufacturer's standard white or light-colored acrylic or polyester backer finish, consisting of prime coat and wash coat with minimum total dry film thickness of 0.5 mil.

E. Lead Sheet: ASTM B749 lead sheet.

2.3 MISCELLANEOUS MATERIALS

A. Provide materials and types of fasteners, , protective coatings, sealants, and other miscellaneous items as required for complete sheet metal flashing and trim installation and as recommended by manufacturer of primary sheet metal unless otherwise indicated.

B. Fasteners: Wood screws, annular threaded nails, self-tapping screws, self-locking rivets and bolts, and other suitable fasteners designed to withstand design loads and recommended by manufacturer of primary sheet metal.

1. General: Blind fasteners or self-drilling screws, gasketed, with hex-washer head.

a. Exposed Fasteners: Heads matching color of sheet metal using plastic caps or factory-applied coating. Provide metal-backed EPDM or PVC sealing washers under heads of exposed fasteners bearing on weather side of metal.

b. Blind Fasteners: High-strength stainless steel rivets suitable for metal being fastened.

2. Fasteners for Zinc-Coated (Galvanized) Steel Sheet: Series 300 stainless steel or hot-dip galvanized steel according to ASTM A 153/A 153M or ASTM F 2329.

SHEET METAL FLASHING AND TRIM 076200 - 6

3. Fasteners for Copper Sheet: Copper, hardware bronze or passivated Series 300 stainless steel.

4. Fasteners for Stainless Steel Sheet: Series 300 stainless steel.

C. Worm Gear Clamps: Series 300 stainless steel, sizes as required to suit project applications.

D. Solder:

1. For Copper: ASTM B32, with maximum lead content of 0.2 percent.

2. For Stainless Steel: ASTM B32, Grade Sn60, with acid flux of type recommended by stainless steel sheet manufacturer.

E. Elastomeric Sealant: ASTM C 920, elastomeric polyurethane polymer sealant; of type, grade, class, and use classifications required to seal joints in sheet metal flashing and trim and remain watertight.

F. Mineral-Wool Blanket Insulation, Unfaced: ASTM C665, Type I (blankets without membrane facing); consisting of fibers; passing ASTM E136 for combustion characteristics.

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Johns Manville; a Berkshire Hathaway company.

b. Rockwool International.

c. Thermafiber, Inc.; an Owens Corning company.

2. Flame-Spread Index: Not more than 25 when tested in accordance with ASTM E84.

3. Smoke-Developed Index: Not more than 50 when tested in accordance with ASTM E84.

4. Application: Expansion joint fill.

G. Spray Polyurethane Foam Insulation: Closed-Cell Polyurethane Foam Insulation:

ASTM C 1029, Type II, with maximum flame-spread and smoke-developed indexes of 75 and

450, respectively, per ASTM E 84.

1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

a. BASF Corporation.

b. BaySystems NorthAmerica, LLC.

c. Dow Chemical Company (The).

2. Minimum density of 1.5 lb/cu. ft., thermal resistivity of 6.2 deg F x h x sq. ft./Btu x in. at

75 deg F.

3. Application: Insulation for Miscellaneous Voids.

H. Flexible Flashing Material: EPDM Sheet, ASTM D4637/D4637M, Type I, nonreinforced, EPDM sheet.

1. Thickness: 60 mils nominal.

SHEET METAL FLASHING AND TRIM 076200 - 7

2.4 FABRICATION, GENERAL

A. Custom fabricate sheet metal flashing and trim to comply with details indicated and recommendations in cited sheet metal standard that apply to design, dimensions, geometry, metal thickness, and other characteristics of item required.

1. Fabricate sheet metal flashing and trim in shop to greatest extent possible.

2. Fabricate sheet metal flashing and trim in thickness or weight needed to comply with performance requirements, but not less than that specified for each application and metal.

3. Verify shapes and dimensions of surfaces to be covered and obtain field measurements for accurate fit before shop fabrication.

4. Form sheet metal flashing and trim to fit substrates without excessive oil-canning, buckling, and tool marks; true to line, levels, and slopes; and with exposed edges folded back to form hems.

5. Conceal fasteners and expansion provisions where possible. Do not use exposed fasteners on faces exposed to view.

B. Fabrication Tolerances:

1. Fabricate sheet metal flashing and trim that is capable of installation to a tolerance of 1/4 inch in 20 feet on slope and location lines indicated on Drawings and within 1/8-inch offset of adjoining faces and of alignment of matching profiles.

2. Fabricate sheet metal flashing and trim that is capable of installation to tolerances specified.

C. Expansion Provisions: Form metal for thermal expansion of exposed flashing and trim.

1. Form expansion joints of intermeshing hooked flanges, not less than 1 inch deep, filled with butyl sealant concealed within joints.

D. Sealant Joints: Where movable, nonexpansion-type joints are required, form metal in accordance with cited sheet metal standard to provide for proper installation of elastomeric sealant.

E. Fabricate cleats and attachment devices from same material as accessory being anchored or from compatible, noncorrosive metal.

F. Fabricate cleats and attachment devices of sizes as recommended by cited sheet metal standard and by FM Global Property Loss Prevention Data Sheet 1-49 for application, but not less than thickness of metal being secured.

G. Seams: Unless otherwise indicated on Drawings, form seams as follows:

1. Copper and Stainless Steel Seams: Fabricate nonmoving seams with flat-lock seams. Tin edges to be seamed, form seams, and solder.

2. Metallic Coated Steel Seams: Fabricate nonmoving seams with flat-lock seams. Form seams and seal with elastomeric sealant unless otherwise recommended by sealant manufacturer for intended use. Rivet joints where necessary for strength.

SHEET METAL FLASHING AND TRIM 076200 - 8

2.5 LOW-SLOPE ROOF SHEET METAL FABRICATIONS

A. Roof Edge Flashing (Gravel Stop): Fabricate in minimum 96-inch-long, but not exceeding 12-foot-long sections. Furnish with 6-inch-wide, joint cover plates. Shop fabricate interior and exterior corners.

1. Joint Style: Overlapped, 4 inches wide.

2. Fabricate from the following materials:

a. Galvanized Steel: 0.028 inch thick.

B. Copings: Fabricate in minimum 96-inch-long, but not exceeding 12-foot-long, sections.

Fabricate joint plates of same thickness as copings. Furnish with continuous cleats to support edge of external leg and drill elongated holes for fasteners on interior leg. Miter corners, fasten and seal watertight. Shop fabricate interior and exterior corners.

1. Coping Profile: As indicated on Drawings and in accordance with SMACNA's

"Architectural Sheet Metal Manual."

2. Joint Style: Butted with expansion space and 6-inch-wide, exposed cover plate.

3. Fabricate from the following materials:

a. Galvanized Steel: 0.028 inch thick.

C. Roof-to-Roof Transition Expansion-Joint Cover: Shop fabricate interior and exterior corners.

Fabricate from the following materials:

1. Galvanized Steel: 0.028 inch thick.

1. Stainless Steel: 0.0250 inch thick.

D. Counterflashing: Shop fabricate interior and exterior corners. Fabricate from the following materials:

1. Galvanized Steel: 0.028 inch thick.

1. Stainless Steel: 0.0188 inch thick.

E. Flashing Receivers: Fabricate from the following materials:

1. Stainless Steel: 0.0156 inch thick.

F. Roof-Penetration Flashing: Fabricate from the following materials:

1. Copper: 16 oz./sq. ft..

2. Solid-Wall PVC Pipe: ASTM D 2665.

3. Lead: 4 lb.

G. Vent/Heat Pipe Collar and Jack: Fabricate from the following materials:

1. Stainless Steel Collar: 0.025 inch thick.

2. Galvanized Steel Jack: 0.028 inch thick.

SHEET METAL FLASHING AND TRIM 076200 - 9

H. Electrical Penetration Hoods: Fabricate from the following materials:

1. Galvanized Steel: 0.028 inch thick.

1. Stainless Steel: 0.025 inch thick.

I. Slip-Up Flashing: Shop fabricate interior and exterior corners. Fabricate from the following materials:

1. Galvanized Steel: 0.028 inch thick.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates, areas, and conditions, with installer present, for compliance with requirements for installation tolerances, substrate, and other conditions affecting performance of the Work.

1. Verify compliance with requirements for installation tolerances of substrates.

2. Verify that substrate is sound, dry, smooth, clean, sloped for drainage, and securely anchored.

3. Verify that air- or water-resistant barriers have been installed over sheathing or backing substrate to prevent air infiltration or water penetration.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION, GENERAL

A. Install sheet metal flashing and trim to comply with details indicated and recommendations of cited sheet metal standard that apply to installation characteristics required unless otherwise indicated on Drawings.

1. Install fasteners, solder, protective coatings, separators, sealants, and other miscellaneous items as required to complete sheet metal flashing and trim system.

2. Install sheet metal flashing and trim true to line, levels, and slopes. Provide uniform, neat seams with minimum exposure of solder and sealant.

3. Anchor sheet metal flashing and trim and other components of the Work securely in place, with provisions for thermal and structural movement.

4. Install sheet metal flashing and trim to fit substrates and to result in watertight performance.

5. Space individual cleats not more than 12 inches apart. Attach each cleat with at least 2 fasteners. Bend tabs over fasteners.

6. Install exposed sheet metal flashing and trim with limited oil-canning, and free of buckling and tool marks.

7. Do not field cut sheet metal flashing and trim by torch.

SHEET METAL FLASHING AND TRIM 076200 - 10

B. Metal Protection: Where dissimilar metals contact each other, or where metal contacts pressure-treated wood or other corrosive substrates, protect against galvanic action or corrosion by painting contact surfaces with bituminous coating or by other permanent separation as recommended by sheet metal manufacturer or cited sheet metal standard.

C. Expansion Provisions: Provide for thermal expansion of exposed flashing and trim.

1. Space movement joints at maximum of 10 feet with no joints within 24 inches of corner or intersection.

2. Form expansion joints of intermeshing hooked flanges, not less than 1 inch deep, filled with sealant concealed within joints.

D. Fasteners: Use fastener sizes that penetrate wood blocking or sheathing not less than 1-1/4 inches for nails and not less than 3/4 inch for wood screws and that penetrate substrate not less than recommended by fastener manufacturer to achieve maximum pull-out resistance.

E. Conceal fasteners and expansion provisions where possible in exposed work and locate to minimize possibility of leakage. Cover and seal fasteners and anchors as required for a tight installation.

F. Seal joints as required for watertight construction.

1. Use sealant-filled joints unless otherwise indicated.

a. Embed hooked flanges of joint members not less than 1 inch into sealant.

b. Form joints to completely conceal sealant.

c. When ambient temperature at time of installation is between 40 and 70 deg F, set joint members for 50 percent movement each way.

d. Adjust setting proportionately for installation at higher ambient temperatures.

1) Do not install sealant-type joints at temperatures below 40 deg F.

2. Prepare joints and apply sealants to comply with requirements in Section 079200 "Joint

Sealants."

G. Soldered Joints: Clean surfaces to be soldered, removing oils and foreign matter.

1. Pretin edges of sheets with solder to width of 1-1/2 inches; however, reduce pretinning where pretinned surface would show in completed Work.

2. Do not solder metallic-coated steel sheet.

3. Do not use torches for soldering.

4. Heat surfaces to receive solder, and flow solder into joint.

a. Fill joint completely.

b. Completely remove flux and spatter from exposed surfaces.

5. Stainless Steel Soldering:

a. Tin edges of uncoated sheets, using solder for stainless steel and acid flux.

b. Promptly remove acid-flux residue from metal after tinning and soldering.

SHEET METAL FLASHING AND TRIM 076200 - 11

c. Comply with solder manufacturer's recommended methods for cleaning and neutralization.

6. Copper Soldering: Tin edges of uncoated sheets, using solder for copper.

3.3 INSTALLATION OF ROOF FLASHINGS

A. Install sheet metal flashing and trim to comply with performance requirements and cited sheet metal standard.

1. Provide concealed fasteners where possible, and set units true to line, levels, and slopes.

2. Install work with laps, joints, and seams that are permanently watertight and weather resistant.

B. Copings:

1. Install roof edge flashings in accordance with ANSI/SPRI/FM 4435/ES-1.

2. Anchor to resist uplift and outward forces in accordance with recommendations in cited sheet metal standard unless otherwise indicated.

a. Interlock exterior bottom edge of coping with continuous cleat anchored to substrate at 16-inch centers.

b. Anchor interior leg of coping with washers and screw fasteners through slotted holes at 24-inch centers.

3. Anchor to resist uplift and outward forces in accordance with recommendations in FM

Global Property Loss Prevention Data Sheet 1-49 for specified FM Approvals' listing for required windstorm classification.

C. Counterflashing: Coordinate installation of counterflashing with installation of base flashing.

1. Insert counterflashing in receivers and fit tightly to base flashing.

2. Extend counterflashing 4 inches over base flashing.

3. Lap counterflashing joints minimum of 4 inches.

4. Secure in waterproof manner by means of anchor and washer spaced at 12 inches o.c.

along perimeter and 6 inches o.c. at corners areas unless otherwise indicated.

D. Roof-Penetration Flashing: Coordinate installation of roof-penetration flashing with installation of roofing and other items penetrating roof.

1. Seal with elastomeric sealant and clamp flashing to pipes that penetrate roof.

3.4 INSTALLATION TOLERANCES

A. Installation Tolerances: Shim and align sheet metal flashing and trim within installed tolerance of 1/4 inch in 20 feet on slope and location lines indicated on Drawings and within 1/8-inch offset of adjoining faces and of alignment of matching profiles.

SHEET METAL FLASHING AND TRIM 076200 - 12

3.5 CLEANING

A. Clean exposed metal surfaces of substances that interfere with uniform oxidation and weathering.

B. Clean off excess sealants.

3.6 PROTECTION

A. Remove temporary protective coverings and strippable films as sheet metal flashing and trim are installed unless otherwise indicated in manufacturer's written installation instructions.

B. On completion of sheet metal flashing and trim installation, remove unused materials and clean finished surfaces as recommended in writing by sheet metal flashing and trim manufacturer.

C. Maintain sheet metal flashing and trim in clean condition during construction.

D. Replace sheet metal flashing and trim that have been damaged or that have deteriorated beyond successful repair by finish touchup or similar minor repair procedures, as determined by

Architect.

END OF SECTION 076200

R O

O F - C

GAS

G

AS

G

AS

G

AS

G

AS

G

AS

G

AS

G

AS

G

AS

G

AS

G

AS

G

AS

G

AS

GAS

PV

EV

PV

EJEJEJ

PV

R D

R D

PV

LAD

PP

PP

PV

R D

R D

ROOF - A

ROOF - B

ROOF - C

ROOF - D

RA.4

RA.4

RA.4

SA.4SA.4

VA.4

WA.4

WA.4

VA.4

136'-2" 9'-81

2" 56'-51

2" 9'-51

2" 58'-7"

270'-5"44'-5"

165'-5 12 "

96'-11 12 "

12'-8" 55'-10"

100'-1"

64'-5 12 "

'-3

68'-01 2"

88'-6 12 " 9'-1 12 "

11'-2"

9' -9

1 2"

7'-61 2"

6' -1

0"

M A.3

RD RD

RDRD

ANT.

PV

EJEJ

PV

PV

HS

RD

RTU

CHIM.

HAT

EJ

EJ

PP

PP

EP

RD

RD RD RD

EJ

EJ

PV

PV

PV

PV

PV

PV

PVEV

EP

PVPV

EP

RDEV

ANT

PV

RD RD

PV

PV

PV

PV

2 2

APPLY COATING TO EXISTING

ROOF MEMBRANE & ALL

FLASHINGS

APPLY COATING TO EXISTING

ROOF MEMBRANE & ALL

FLASHINGS

APPLY COATING TO EXISTING

ROOF MEMBRANE & ALL

FLASHINGS

APPLY COATING TO EXISTING

ROOF MEMBRANE & ALL

FLASHINGS

APPLY NEW ELEASTOMERIC COATING

OVER EXISTING ROOF MEMBRANE, ALL

FLASHINGS, & ALL PENETRATIONS

KEYED ROOF PLAN NOTES - ADMIN. BLDG.:

REMOVE ALL INDICATED AREAS OF

MOISTURE AND REPLACE WITH

MATERIALS TO MATCH EXISTING

EXISTING DUCTING & RELATED

SUPPORT STRUCTURES TO REMAIN

THROUGHOUT

RE-POINT, CLEAN, & SEAL (2 COATS)

ALL EXPOSED MASONRY @ CHIMNEY

EXISTING ROOF

SYSTEM

EXISTING 2-PLY MODIFIED

BITUMEN ROOF MEMBRANE

EXISTING ROOF DECK

NEW ELASTOMERIC

ROOF COATING EXISTING

CURB / RAIL

PRE-FINISHED METAL SLIP-UP

COUNTER FLASHING

EXISTING METAL ROOF DECK

EXISTING ROOF SYSTEM

APPLY NEW ELEASTOMERIC COATING

OVER EXISTING ROOF MEMBRANE, ALL

FLASHINGS, & ALL PENETRATIONS

EXISTING METAL

CAP / EQUIPMENT

FRANKFORT, KENTUCKY

DIVISION OF ENGINEERING AND CONTRACT ADMINISTRATION

DEPARTMENT FOR FACILITIES & SUPPORT SERVICES

FINANCE AND ADMINISTRATION CABINET

COMMONWEALTH OF KENTUCKY

PATRICK D. MURPHY CO., INC.

ARCHITECTS

P.O. BOX 20835

LOUISVILLE, KENTUCKY 40250

DENHAM & ADMINISTRATION BUILDING

A.1

ADMINISTRATION BUILDING ROOF PLAN

N

SCALE: 3/32" = 1'-0"

ADMINISTRATION BLDG - ROOF PLAN1

GENERAL ROOF NOTES

1. ALL EXISTING METAL COMPONENTS (HEAT STACKS, A/C PENETRATIONS,

EXHAUST FANS, ETC.; ALL PIPING, DUCTWORK, LINES, ELECTRICAL, ETC.)

TO REMAIN.

2. ROOF INSTALLATION HOURS ARE APPROXIMATELY 7:00 AM - 5:00 PM, M-F.;

THIS WILL BE COVERED AT THE PRE-BID CONFERENCE.

3. STAGING & STORAGE AREAS TO BE DISCUSSED AT THE PRE-BID

CONFERENCE.

4. CONTRACTOR TO COORDINATE WITH OWNER REGARDING DISCONNECT/

RECONNECT OF MECHANICAL WORK.

· RD - ROOF DRAIN

· EV - EXHAUST VENT; REFER TO 3/A.1

· PV - PLUMBING VENT

· EJ - EXPANSION JOINT

· HAT - ROOF ACCESS HATCH

· PP - PIPE PENETRATION

· EP - ELECTRICAL PENETRATION

· LAD - ROOF ACCESS LADDER

· RTU - ROOFTOP H.V.A.C. UNIT

· ANT - EXISTING ANTENNA FRAME

DRAWING KEY

EXISTING ROOF SYSTEM

CORE SAMPLES

ROOF CORE

'A' DECK: METAL (FLAT)

CORE: 2-PLY MODIFIED BITUMEN

MEMBRANE OVER TAPERED

INSULATION ON RIGID

INSULATION

'B' DECK: METAL (FLAT); CONCRETE

CORE: 2-PLY MODIFIED BITUMEN

MEMBRANE OVER TAPERED

INSULATION ON RIGID

INSULATION

'C' DECK: METAL (FLAT)

CORE: 2-PLY MODIFIED BITUMEN

MEMBRANE OVER TAPERED

INSULATION ON RIGID

INSULATION

'D' DECK: METAL (FLAT)

CORE: 2-PLY MODIFIED BITUMEN

MEMBRANE OVER TAPERED

INSULATION ON RIGID

INSULATION

SCALE: 3" = 1'-0"

TYP. NEW ROOF ASSEMBLY - ADMIN.2

SCALE: 3" = 1'-0"

TYP. CURB / RAIL @ COATING3

CHANGE OF MATERIAL 01/31/24

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RTA DATE

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DECA LOG #

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A&E FILE NO.

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CHECKED BY

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DRAWN BY

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DRAWING DATE

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DRAWING INFORMATION

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DRAWING NO.

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AS BUILT DATE

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PHASE

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DATE

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DESCRIPTION OF REVISIONS

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REVISION HISTORY OF THIS DRAWING

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DATE

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DESCRIPTION OF REVISIONS

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ACCOUNT NO.

AutoCAD SHX Text 23-672-07

AutoCAD SHX Text 10-17-2023

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RBSII

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JPG

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PHASE-C

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470-CARF-MV53-00

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K.C.T.C.S. - ROOF REPLACEMENTS - MAYSVILLE C.T.C.

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MAYSVILLE, KY

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FNAME

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REVDATE

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USER

189'-71 2"

90'-1"77'-3"9'-21 2"

95'-8 12 "

55'-6" 8'-10"

31'-4 12 "

4'-11"7'-51 2"48'-31

2"87'-31 2"22'-1"6'-61

2"

13'-1"

11'-101 2"

5'-21 2"

13'-1"

49'-1"

23'-7"

26'-01 2"

ROOF - A

ROOF - B

ROOF - C

ROOF - D

HAT

ANT

EV

PV

1 1 1

EJ

EJ

EJ

PV

RD RD RD

RD RD

PV

LAD

PPPP

PV

PV PV

PV

PV

PV

RD

RD

RD

RD

EV

RTU

RTU

F A.3

F A.3

F A.3

F A.3

F A.3

F A.3

F A.3

F A.3

F A.3

F A.3

F A.3

F A.3

F A.3

F A.3

F A.3

F A.3

G A.3

G A.3

J A.3

J A.3

L A.3 M

A.3

L A.3 M

A.3

H A.3

SIM.

H A.3

SIM.

F A.3

M A.3

L A.3

J A.3

J A.3

5 5 5 5 5 5

KEYED ROOF PLAN NOTES - DENHAM BLDG.:

REMOVE ALL OBSOLETE & ABANDONED SUPPORT

RAILS, CURBS, & POST PENETRATIONS

EXISTING DUCTING & RELATED SUPPORT

STRUCTURES TO REMAIN THROUGHOUT

REMOVE EXISTING ROOF ACCESS LADDER; CLEAN

& PAINT; RE-INSTALL IN EXISTING LOCATION

PROVIDE NEW SUPPORT CURB @ EXISTING

H.V.A.C. EQUIPMENT

PROVIDE NEW DRAINAGE CRICKET/SADDLE; 14 /12

MIN. SLOPE

RIGID INSULATION

(R-12.6)~2

3 16

~2 3 16

1 2"

RIGID INSULATION

(R-12.6)

PERLITE COVER BOARD

(R-1.3)

2-PLY MODIFIED BITUMEN

ROOF MEMBRANE

EXISTING ROOF DECK

TOTAL ROOF

SYSTEM R-VALUE:

R-26.5

8" M

IN

. H

T.

EXISTING

CURB

ADD WOOD

BLOCKING AS

NEEDED FOR

MIN. FLASHING

HEIGHT

NEW CANT

STRIP

EXISTING EXHAUST FAN; REMOVE &

STORE IN A SAFE & SECURE LOCATION

WHILE ROOFING; RE-SET & RE-SECURE;

CONTRACTOR RESPONSIBLE FOR

TEMPORARY WATERTIGHTING OPEN

AREA, SAFETY COMPLIANCE,

DISCONNECT / RECONNECT OF UNIT,

DUCT / ELECTRICAL EXTENSIONS, ETC.

NEW FOIL FACED

FLASHING

NEW 2-PLY

MODIFIED BITUMEN

ROOF SYSTEM

NEW

INSULATION

SYSTEM

EXISTING METAL

DECK

4" 4"

MODIFIED

BASE SHEET

LEAD FLANGE

(PRIME & SET IN

MASTIC)

EXISTING METAL

DECK

MODIFIED CAP

SHEET

NEW

INSULATION

SYSTEM

NEW

INSULATION

SYSTEM

8" (M

IN

SEALANT

LEAD FLASHING

(4 LB., ROLL

INTO PIPE 1")

NEW P.V.C. EXTENSION

w/COPPER LINER

EXISTING METAL

DECK

4"4"

MODIFIED

BASE SHEET

FLASHING AROUND

PRE-FABRICATED

DRAIN FLANGE

NEW STRAINER &

CLAMPING RING

PRE-FABRICATED

DRAIN FLANGE

MODIFIED

CAP SHEET

PLAN VIEW

NEW 2-PLY

MODIFIED BITUMEN

ROOF SYSTEM

24"; SLOPE ROOF TOWARD

DRAIN @ 18:12 TO WALL (MIN.)

MODIFIED CAP

SHEET

NEW DRAIN

INSERTS

NEW INSULATION

SYSTEM

EXISTING METAL DECK

LIQUID APPLIED

FLASHING

LIQUID APPLIED

FLASHING

NEW WOOD BLOCKING

FOR INSERT ANCHORING

8"

8"

8" 8"

6"

8"

6"

8"

1' -6

CAP SHEET

STRIP-IN STAINLESS

FLASHING

6"

MIN.

6"

MIN.

" M

IN

GALVANIZED METAL

ROOF PENETRATION

FLASHING

NEW MODIFIED

ROOF SYSTEM

SEALANT

EXISTING

ROOF DECK

NEW ROOF

SYSTEM

FILL NECK…