Addendum 3.pdf

COMMONWEALTH OF KENTUCKY

DEPARTMENT FOR FACILITIES AND SUPPORT SERVICES

DIVISION OF ENGINEERING AND CONTRACT ADMINISTRATION

INVITATION TO BID NO: RFB-278-26

FOR: Roof Project Transportation Cabinet Office Building Department for Facilities and Support Services Frankfort, Kentucky

DATE: June 26, 2026

RFB-785-2600000609

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 attached addendum for all additions, deletions, and/or changes to specifications and/or drawings.

END OF ADDENDUM

Invitation to Bid No. RFB-278-26 For: Roof Project Transportation Cabinet Office Building Department for Facilities and Support Services Frankfort, Kentucky

Janis Wilhoite, Statewide Procurement Analyst II Division of Engineering and Contract Administration

F.S.S. - T.C.O.B. Roof Project Transportation Cabinet Office Building Frankfort, Kentucky Acct No: 785-CBQ3-TB05-00

SBS MODIFIED BITUMINOUS MEMBRANE ROOFING 075216 - 1

SECTION 075216 – Addendum #3

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Installation of Styrene-butadiene-styrene (SBS)-modified bituminous protected membrane roofing over metal roof deck.

2. Installation of Styrene-butadiene-styrene (SBS)-modified bituminous protected membrane roofing over cast-in-place concrete roof deck.

3. Roof insulation.

4. Walkways

5. Replacement Roof Drains.

1.2 DEFINITIONS

A. Roofing Terminology: Definitions in ASTM D1079 and glossary of NRCA's "The NRCA Roofing Manual: Membrane Roof Systems" apply to Work of 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.

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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, 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.

1.3 PREINSTALLATION MEETINGS

A. Preinstallation Roofing Conference: 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, deck Installer, air barrier Installer, 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. Examine deck substrate conditions and finishes for compliance with requirements, 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 system 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.

1. For roof system component fasteners.

B. Shop Drawings: Include plans, sections, details, and attachments to other work, including the following:

1. Base flashings and membrane terminations.

2. Crickets, saddles, and tapered edge strips, including slopes.

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3. Flashing details at penetrations.

C. Samples for Verification: For the following products:

1. Cap sheet, of color required.

2. Flashing sheet, of color required.

3. Walkway pads or rolls, of color required.

1.5 INFORMATIONAL SUBMITTALS

A. Qualification Data: For Installer and manufacturer.

B. Manufacturer Certificates:

1. Performance Requirement Certificate: Signed by roof membrane manufacturer, certifying that roofing system complies with requirements specified in "Performance Requirements" Article.

a. Submit evidence of compliance with performance requirements.

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

D. Report: Manufacturer's technical personnel’s written report of Final Inspection.

1.6 CLOSEOUT SUBMITTALS

A. Maintenance Data: For roofing system to include in maintenance manuals.

1.7 QUALITY ASSURANCE

A. Manufacturers: A qualified manufacturer that is listed in FM Approvals' RoofNav for roofing system identical to that used for this Project.

B. Installer Qualifications: A qualified firm that is approved, authorized, or licensed by roofing system manufacturer to install manufacturer's product and that is eligible to receive manufacturer's special warranty.

1.8 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. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by roofing manufacturer.

1. Protect stored liquid material from direct sunlight.

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2. Discard and legally dispose of liquid material that cannot be applied within its stated shelf life.

C. Handle and store roofing materials, and place equipment in a manner to avoid permanent deflection of deck.

1.9 FIELD CONDITIONS

A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit roofing system to be installed according to manufacturer's written instructions and warranty requirements.

1.10 WARRANTY

A. Special Warranty: Manufacturer agrees to repair or replace components of roofing system that fail in materials or workmanship within specified warranty period.

1. Special warranty includes roof membrane, base flashings, fasteners, cover boards, roofing accessories, and other components of roofing system.

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

3. Manufacturers No Dollar Limit (NDL) Total Systems Warranty Form, without monetary limitation, non-prorated.

4. Warranty shall cover wind speeds less than, or equal to 72 mph.

5. Where more than one building is part of the project, a separate warranty shall be issued for each building.

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, fasteners, cover boards, and walkway products, for the following warranty period:

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

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. General Performance: Installed roofing system and 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. Roof system and flashings shall remain watertight.

1. Accelerated Weathering: Roof membrane shall withstand 2000 hours of exposure when tested according to ASTM G152, ASTM G154, or ASTM G155.

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2. Impact Resistance: Roof membrane to resist impact damage when tested according to ASTM D3746/D3746M, ASTM D4272/D4272M, or the "Resistance to Foot Traffic Test" in FM Approvals 4470.

B. Wind Uplift Resistance: Design roofing system to resist the following wind uplift pressures when tested according to FM Approvals 4474, UL 580, or UL 1897:

1. Roof Area A:

a. Zone 1 (Field): -33 psf minimum

b. Zone 2 (Perimeter): -33 psf minimum

c. Zone 3 (Corners): -33 psf minimum

2. Roof Area B-D:

a. Zone 1 (Field): -32 psf minimum

b. Zone 2 (Perimeter): -49 psf minimum

c. Zone 3 (Corners): -66 psf minimum

3. Roof Area D1:

a. Zone 1 (Field): -31 psf minimum

b. Zone 2 (Perimeter): -31 psf minimum

c. Zone 3 (Corners): -31 psf minimum

4. Roof Area E&F:

a. Zone 1 (Field): -32 psf minimum

b. Zone 2 (Perimeter): -49 psf minimum

c. Zone 3 (Corners): -60 psf minimum

5. Roof Area L-P:

a. Zone 1 (Field): -34 psf minimum

b. Zone 2 (Perimeter): -53 psf minimum

c. Zone 3 (Corners): -72 psf minimum

6. Roof Area G-J:

a. Zone 1 (Field): -24 psf minimum

b. Zone 2 (Perimeter): -37 psf minimum

c. Zone 3 (Corners): -50 psf minimum

7. Roof Area Q:

a. Zone 1 (Field): -26 psf minimum

b. Zone 2 (Perimeter): -37 psf minimum

c. Zone 3 (Corners): -50 psf minimum

8. Roof Area R,BB-GG:

SBS MODIFIED BITUMINOUS MEMBRANE ROOFING 075216 - 6

a. Zone 1 (Field): -32 psf minimum

b. Zone 2 (Perimeter): -50 psf minimum

c. Zone 3 (Corners): -48 psf minimum

9. Roof Area S&T:

a. Zone 1 (Field): -24 psf minimum

b. Zone 2 (Perimeter): -37 psf minimum

c. Zone 3 (Corners): -50 psf minimum

10. Roof Area U:

a. Zone 1 (Field): -26 psf minimum

b. Zone 2 (Perimeter): -40 psf minimum

c. Zone 3 (Corners): -54 psf minimum

11. Roof Area U1,W,Y,AA:

a. Zone 1 (Field): -23 psf minimum

b. Zone 2 (Perimeter): -36 psf minimum

c. Zone 3 (Corners): -49 psf minimum

12. Roof Area V:

a. Zone 1 (Field): -31 psf minimum

b. Zone 2 (Perimeter): -48 psf minimum

c. Zone 3 (Corners): -65 psf minimum

13. Roof Area X&Z:

a. Zone 1 (Field): -25 psf minimum

b. Zone 2 (Perimeter): -38 psf minimum

c. Zone 3 (Corners): -52 psf minimum

C. FM Approvals' RoofNav Listing: Roof membrane, base flashings, and component materials comply with requirements in FM Approvals 4450 or FM Approvals 4470 as part of a roofing system, and are listed in FM Approvals' RoofNav for Class 1 or noncombustible construction, as applicable. Identify materials with FM Approvals Certification markings.

1. Fire/Windstorm Classification: Class 1A-90.

2. Hail-Resistance Rating: FM 1-34 SH.

D. Material Compatibility: Roofing materials shall be compatible with one another and adjacent materials under conditions of service and application required, as demonstrated by roof membrane manufacturer based on testing and field experience.

E. Exterior Fire-Test Exposure: UL 790, Class B; for application and roof slopes indicated; testing by a qualified testing agency.

1. Identify products with appropriate markings of applicable testing agency.

SBS MODIFIED BITUMINOUS MEMBRANE ROOFING 075216 - 7

2.2 MANUFACTURERS

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

1. Siplast, Inc.

2. Soprema.

3. Elevate (formerly Firestone Building Products)

B. Source Limitations: Obtain components including, but not limited to: fasteners, roof membrane, roofing mastics, PMMA flashing system, auxiliary roofing materials, accessories, and asphalt materials for roofing system from same manufacturer as membrane roofing or manufacturer approved by membrane roofing manufacturer.

2.3 BASE SHEET MATERIALS

A. Vented Base Sheet: ASTM D 4897/D 4897M, Type II, venting, nonperforated, heavyweight, asphalt-impregnated and -coated, glass-fiber base sheet with coarse granule surfacing or embossed venting channels on bottom surface.

1. Basis of Design Product: Subject to compliance with requirements, provide Paradiene 20 TS by Siplast, or provide comparable product by one of the following:

a. Soprema.

b. Firestone Building Products

B. SBS-Modified Bitumen Fiberglass Mat Base Sheet: ASTM D6163, Type I or Type II, Grade S, SBS-modified asphalt sheet, reinforced with fiberglass fabric; smooth surfaced; suitable for cold adhesive or hot asphalt application method.

1. Maximum filler content in elastomeric blend – 35% by weight.

2. Ultimate Elongation @ 73ºF (23ºC): 50% (ASTM D 5147)

2.4 CAP SHEET MATERIAL

A. Granule-Surfaced Roofing Cap Sheet: ASTM D6163, Type I, Grade G, SBS-modified asphalt sheet, reinforced with fiberglass fabric; suitable for cold adhesive asphalt application method.

1. Granule Color: White.

2. Maximum filler content in elastomeric blend – 35% by weight.

3. Ultimate Elongation @ 73ºF (23ºC): 55% (ASTM D 5147)

2.5 BASE FLASHING SHEET MATERIALS

A. Backer Sheet: ASTM D6163, Type I or II, Grade S, SBS-modified asphalt sheet, reinforced with glass fibers; smooth surfaced; suitable for application method specified.

http://www.specagent.com/Lookup?ulid=5029 http://www.specagent.com/Lookup?uid=123457005469 http://www.specagent.com/Lookup?uid=123457005468

SBS MODIFIED BITUMINOUS MEMBRANE ROOFING 075216 - 8

B. SBS-Modified Asphalt Metal-Foil-Surfaced Flashing Sheet: ASTM D6298, metal-foil-surfaced SBS-modified asphalt sheet (reinforced with glass fibers); suitable for application method specified, and as follows:

1. Foil Surfacing: Aluminum.

2. Maximum filler content in elastomeric blend – 35% by weight.

3. Ultimate Elongation @ 73ºF (23ºC): 45% (ASTM D 5147)

C. Fluid applied, 2 component, catalyzed polymethyl methacrylate (PMMA), liquid resin, reinforced flashing system consisting of the following components:

1. PMMA Primer.

2. Base coat.

3. Non-woven, polyester, fleece sheet reinforcement.

4. Top coat.

2.6 AUXILIARY ROOFING MATERIALS

A. General: Auxiliary materials recommended by roofing manufacturer for intended use and compatible with other roofing components.

1. Adhesive and Sealants: Comply with VOC limits of authorities having jurisdiction.

B. Replacement Roof Drains: One-piece aluminum body, cast aluminum strainer dome, clamping ring, aluminum flange, and stem pipe with mechanical seal.

1. Basis of Design Product: Subject to compliance with requirements, Hercules® RetroDrain®, by OMG, Inc.

2. Drain Body: 1.25-inch thick, spun aluminum.

3. Strainer Dome: Cast aluminum.

4. Clamp Ring: Aluminum.

5. Stem Pipe: Aluminum.

a. Diameter: Maximum diameter to fit existing drain pipe.

b. Length: 12 inches.

6. Flange: Aluminum.

a. Diameter: 17.5 inches.

C. Catalyzed Acrylic Resin Flashing System: A reinforced, multi-component, flexible Poly(methyl methacrylate) (PMMA) based resin flashing system consisting of a catalyzed acrylic resin primer, basecoat and topcoat, combined with a non-woven polyester fleece.

1. Basis of Design: Subject to compliance with the requirements provide Parapro 123 Flashing System by Siplast®.

2. Flashing System Primer: Catalyzed acrylic resin flashing system manufacturer’s recommended primer.

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D. Prefabricated Pipe Flashings: As recommended by roof membrane manufacturer.

E. Cold-Applied Asphalt Adhesive: ASTM D3019, Type III, roof membrane manufacturer's standard asphalt-based, one- or two-part, asbestos-free, cold-applied adhesive, specially formulated for compatibility and use with roofing membrane and base flashings.

F. Asphalt Roofing Cement: ASTM D4586, Type II, asbestos free, of consistency required by roofing system manufacturer for application.

G. Mastic Sealant: Polyisobutylene, plain or modified bitumen; nonhardening, nonmigrating, nonskinning, and nondrying.

H. Insulation Cant Strips: Provide one of the following based on roofing member manufacturer’s written recommendation:

1. Perlite insulation board, ASTM C728.

2. Cellulosic-fiber insulation board, ASTM C208, Type II, Grade 1.

I. Wood Cants, Blocking, Curbs, and Nailers: As specified in Section 061053 "Miscellaneous Rough Carpentry."

J. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance provisions in FM Approvals 4470, designed for fastening roofing components to substrate; tested by manufacturer for required pullout strength, and acceptable to roofing system manufacturer.

K. Metal Termination Bars: Manufacturer's standard, predrilled stainless-steel, approximately 1 by 1/8 inch thick; with anchors.

L. Solvent-Free Adhesive: Manufacturer’s standard single component, solvent-free, non-toxic adhesive for application on metal-foil-surfaced flashing sheets.

1. VOC Content: Not more than 32 g/L average.

M. Metal Flashing Sheet: As specified in Section 076200 "Sheet Metal Flashing and Trim."

N. Miscellaneous Accessories: Provide accessories recommended by roofing system manufacturer.

O. Walkway Pads: Reinforced asphaltic composition pads with slip-resisting mineral-granule surface, manufactured as a traffic pad for foot traffic and acceptable to roofing system manufacturer, 3/8 inch thick, minimum.

1. Pad Size: 36 by 36 inches.

2.7 ACCESSORIES

A. General: Roof insulation accessories recommended by roofing membrane manufacturer for intended use and compatible with other roofing system components.

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B. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance provisions in FM Approvals 4470, designed for fastening substrate boards to substrate, and acceptable to roofing system manufacturer.

C. Substrate Boards: Provide one of the following types of cover boards:

1. Substrate Board: ASTM C208, Type II, Grade 2, cellulosic-fiber insulation board, 5/8 inch thick.

2. Substrate Board: ASTM C728, Type 2, high density, expanded perlite board insulation with reinforcing cellulosic fibers, 5/8 inch thick.

D. Glass-Mat Gypsum Cover Board: ASTM C1177/C1177M, water-resistant gypsum board.

1. Basis of Design Product: Subject to compliance with requirements, provide DensDeck® Prime Roof Board by Georgia-Pacific Gypsum LLC, or provide a comparable product by one of the following:

a. Certainteed; SAINT-GOBAIN.

b. Georgia-Pacific Gypsum LLC.

c. National Gypsum Company.

d. USG Corporation.

2. Thickness: 1/2 inch.

3. Surface Finish: Factory primed.

2.8 ROOF INSULATION

A. General: Preformed roof insulation boards, manufactured or approved by roof membrane manufacturer.

B. Polyisocyanurate Board Insulation: ASTM C 1289, Type II, Class 1, Grade 2, felt or glass-fiber mat facer on both major surfaces.

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

a. Apache Products Company.

b. Atlas Roofing Corporation.

c. Hunter Panels.

2. Board size: 48 by 48 by 2.2 inches.

C. Provide preformed saddles, crickets, tapered edge strips, and other insulation shapes where indicated for sloping to drain.

1. Where roof slope in field is 1/8:12, fabricate to slopes of 1/4 inch per 12 inches or as otherwise indicated on Drawings

2. Where roof slope in field is 1/4:12, fabricate to slopes of 1/2 inch per 12 inches or as otherwise indicated on Drawings

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3. Minimum Thickness: 1/2 inch.

D. Tapered Insulation: Provide factory-tapered polyisocyanurate insulation boards.

1. Material: Match roof insulation.

2. Minimum Thickness: 1/2 inch.

3. Slope:

a. Roof Field: 1/8 inch per foot unless otherwise indicated on Drawings.

b. Saddles and Crickets: 1/4 inch per foot unless otherwise indicated on Drawings.

2.9 ASPHALT MATERIALS

A. Asphalt Primer: ASTM D41.

B. Roofing Asphalt: ASTM D312, Type III or IV as recommended by roofing system manufacturer for application.

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.

3. Verify that deck is securely fastened with no projecting fasteners and with no adjacent units in excess of 1/16 inch out of plane relative to adjoining deck.

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

3.2 PREPARATION

A. Clean substrate of dust, debris, moisture, and other substances detrimental to roofing installation, according to roofing system manufacturer's written instructions.

1. Remove sharp projections.

B. 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.

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C. Where existing roof slope is 1:12 or greater, mechanically fasten nailer strips to top flanges of steel deck.

1. Remove sections of existing insulation, no wider than the nailers, down to existing substrate board or to existing steel deck, whichever comes first.

2. Nailer Spacing: For slopes of 1 inch per foot and greater space nailers as recommended by SBS modified bituminous membrane roofing manufacturer but no greater than the following:

a. Spacing for slopes of 1 inches per foot or more but no greater than 2 inches per foot: 20 feet on center maximum.

b. Spacing for slopes greater than 2 inches per foot or more but no greater than 3 inches per foot: 16 feet on center maximum.

c. Spacing for slopes greater than 3 inches per foot or more but no greater than 4 inches per foot: 8 feet on center maximum.

d. Spacing for slopes greater than 4 inches per foot: 4 feet on center maximum.

3. Cut existing roof membrane down to top of existing insulation in lines parallel to each edge of the roof.

a. Spacing of Cuts: As recommended by SBS modified bituminous membrane roofing manufacturer but which produce an area no greater than 100 sq. ft.

between cuts.

3.3 SUMMARY OF WORK

A. The following is a general outline of roof work to be performed:

1. Roofing System Description Over Existing Metal Deck:

a. Mechanically attach base layer of polyisocyanurate insulation to metal deck.

b. Adhere second layer of polyisocyanurate insulation in cold-applied asphalt adhesive.

c. Adhere one layer gypsum cover board in cold-applied asphalt adhesive.

d. Install SBS modified bitumen base fiberglass mat base sheet in cold-applied asphalt adhesive.

e. Install modified base flashings at walls and curbs.

f. Re-install roof drains.

g. Install modified cap sheet in cold-applied asphalt adhesive.

h. Adhere foil faced modified flashings at walls and curbs.

2. Roofing System Description Over Existing Metal Deck Canopy:

a. Mechanically attach one layer gypsum cover board to metal deck.

b. Install SBS modified bitumen base fiberglass mat base sheet in cold-applied asphalt adhesive.

c. Install modified base flashings at walls.

d. Re-install roof drains.

e. Install modified cap sheet in cold-applied asphalt adhesive.

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f. Adhere foil faced modified flashings at walls and curbs.

3. Roofing System Description Over Existing cast-in-place Concrete Deck:

a. Adhere vented base sheet to cast-in-place concrete deck with cold-applied asphalt adhesive.

b. Install SBS modified bitumen base fiberglass mat base sheet in cold-applied asphalt adhesive.

c. Install modified base flashings at walls and curbs.

d. Re-install roof drains.

e. Install modified cap sheet in cold-applied asphalt adhesive.

f. Adhere foil faced modified flashings at walls and curbs.

3.4 INSTALLATION OF ROOFING, GENERAL

A. Install roofing system according to roofing system manufacturer's written instructions.

B. Comply with roofing system manufacturer's written instructions.

C. Start installation of roofing in presence of manufacturer's technical personnel.

D. Where roof slope exceeds 1-1/2 inch per 12 inches, install roofing sheets parallel with slope and install nailers as per manufacturer’s warranty requirements.

E. Coordinate installation of roofing system, so components of the roofing system not permanently exposed are not subjected to precipitation or left uncovered at the end of the workday or when rain is forecast.

1. Provide tie-offs at end of each day's work to cover exposed roofing sheets with a course of coated felt set in roofing cement with joints and edges sealed.

2. Complete terminations and base flashings, and provide temporary seals to prevent water from entering completed sections of roofing system.

3. Remove and discard temporary seals before beginning work on adjoining roofing.

F. Substrate-Joint Penetrations: Prevent roofing asphalt and adhesives from penetrating substrate joints, entering building, or damaging roofing system components or adjacent building construction.

3.5 INSTALLATION OF INSULATION OVER EXISTING METAL ROOF DECK

A. Installation of Insulation:

1. Installation General:

a. Locate end joints over crests of decking.

b. Trim insulation neatly to fit around penetrations and projections, and to fit tight to intersecting sloping roof decks.

c. Make joints between adjacent insulation boards not more than 1/4 inch in width.

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d. Fill gaps exceeding 1/4 inch with insulation.

e. Cut and fit insulation within 1/4 inch of nailers, projections, and penetrations.

2. Install base layer of insulation with joints staggered not less than 24 inches in adjacent rows as follows:

a. Mechanically attach base layer of insulation using mechanical fasteners specifically designed and sized for fastening specified board-type roof insulation to metal decks.

1) Fasten insulation according to manufacturer's written instructions.

2) Fasten insulation to resist specified uplift pressure at corners, perimeter, and field of roof.

3. Over designated area indicated on Drawings, install base layer of insulation with joints staggered not less than 24 inches in adjacent rows as follows:

a. Adhere base layer of insulation to metal roof deck according to manufacturer's written instructions.

4. Install upper layers of insulation, with joints of each layer offset not less than 12 inches from previous layer of insulation.

a. Staggered end joints within each layer not less than 24 inches in adjacent rows.

b. Trim insulation neatly to fit around penetrations and projections, and to fit tight to intersecting sloping roof decks.

c. Make joints between adjacent insulation boards not more than 1/4 inch in width.

d. Trim insulation, so that water flow is unrestricted.

e. Fill gaps exceeding 1/4 inch with insulation.

f. Cut and fit insulation within 1/4 inch of nailers, projections, and penetrations.

g. Adhere each layer of insulation to substrate using adhesive according to manufacturer's written instructions and as follows:

1) Set each layer of insulation in ribbons of bead-applied insulation adhesive, firmly pressing and maintaining insulation in place.

3.6 INSTALLATION OF INSULATION OVER PRECAST CONCRETE DECKING

A. Install base layer of insulation with joints staggered not less than 24 inches in adjacent rows.

1. Prime concrete with asphalt primer if required by roofing system manufacturer.

2. Trim insulation neatly to fit around penetrations and projections, and to fit tight to intersecting sloping roof decks.

3. Make joints between adjacent insulation boards not more than 1/4 inch in width.

4. At internal roof drains, slope insulation to create a square drain sump, with each side equal to the diameter of the drain bowl plus 24 inches.

a. Trim insulation, so that water flow is unrestricted.

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5. Fill gaps exceeding 1/4 inch with insulation.

6. Cut and fit insulation within 1/4 inch of nailers, projections, and penetrations.

7. Adhere base layer of insulation to concrete roof deck according to manufacturer's written instructions and as follows:

a. Set insulation in ribbons of bead-applied insulation adhesive, firmly pressing and maintaining insulation in place.

B. Install upper layers of insulation and tapered insulation, with joints of each layer offset not less than 12 inches from previous layer of insulation.

1. Staggered end joints within each layer not less than 24 inches in adjacent rows.

2. Trim insulation neatly to fit around penetrations and projections, and to fit tight to intersecting sloping roof decks.

3. Make joints between adjacent insulation boards not more than 1/4 inch in width.

4. At internal roof drains, slope insulation to create a square drain sump, with each side equal to the diameter of the drain bowl plus 24 inches.

a. Trim insulation, so that water flow is unrestricted.

5. Fill gaps exceeding 1/4 inch with insulation.

6. Cut and fit insulation within 1/4 inch of nailers, projections, and penetrations.

7. Adhere each layer of insulation to substrate using adhesive according to SPRI's Directory of Roof Assemblies listed roof assembly requirements for specified Wind Uplift Load Capacity and FM Global Property Loss Prevention Data Sheet 1-29, as follows:

a. Set each layer of insulation in a solid mopping of hot roofing asphalt, applied within plus or minus 25 deg F of equiviscous temperature.

b. Set each layer of insulation in ribbons of bead-applied insulation adhesive, firmly pressing and maintaining insulation in place.

3.7 INSTALLATION OF COVER BOARDS

A. Install cover boards over insulation with long joints in continuous straight lines, with end joints staggered between rows. Offset joints of insulation below a minimum of 6 inches in each direction.

1. Trim cover board neatly to fit around penetrations and projections, and to fit tight to intersecting sloping roof decks.

2. Cut and fit cover board tight to nailers, projections, and penetrations.

3. Adhere cover board to substrate using adhesive according manufacturer's written instructions and as follows:

a. Set cover board in ribbons of bead-applied insulation adhesive, firmly pressing and maintaining insulation in place.

SBS MODIFIED BITUMINOUS MEMBRANE ROOFING 075216 - 16

3.8 INSTALLATION OF SBS-MODIFIED FIBERGLASS-MAT BASE SHEET

A. Before installing, unroll base sheet, cut into workable lengths, and allow to lie flat for a minimum of one hour.

1. Allow more time, if recommended by the manufacturer for the ambient temperature.

B. Installation of SBS-Modified Fiberglass-Mat Base Sheet:

1. Install base sheet in cold-applied adhesive according to roofing manufacturer's written instructions, starting at low point of roofing system.

2. Extend roofing sheets over and terminate above cants.

3. Install base sheet in a shingle fashion.

4. Install base sheet without wrinkles, tears, or air pockets.

5. Laps: Accurately align roofing sheets, without stretching, and maintain uniform side and end laps.

a. Lap side laps as recommended by roof membrane manufacturer but not less than 3 inches.

b. Lap end laps as recommended by roof membrane manufacturer but not less than 6 inches.

c. Stagger end laps not less than 18 inches.

d. Heat weld laps, leaving no voids.

e. Roll laps with a 20-pound roller.

6. Repair tears and voids in laps and lapped seams not completely sealed.

7. Apply pressure to the body of the base sheet according to manufacturer's instructions, to remove air pockets and to result in complete adhesion of base sheet to substrate.

C. Install roofing base sheet stripping where metal flanges and edgings are set on roofing base sheet according to roofing system manufacturer's written instructions.

3.9 INSTALLATION OF SBS-MODIFIED BITUMINOUS CAP SHEET

A. Before installing, unroll cap sheet, cut into workable lengths, and allow to lie flat for a minimum of one hour.

1. Allow more time, if recommended by the manufacturer for the ambient temperature.

B. Install modified bituminous roofing cap sheet according to roofing manufacturer's written instructions, starting at low point of roofing system.

1. Extend cap sheet over and terminate above cants.

2. Install cap sheet in a shingle fashion.

3. Install cap sheet as follows:

a. Adhere to substrate in cold-applied adhesive.

4. Install cap sheet without wrinkles or tears, and free from air pockets.

SBS MODIFIED BITUMINOUS MEMBRANE ROOFING 075216 - 17

5. Install cap sheet so side and end laps shed water.

C. Laps: Accurately align roofing sheets, without stretching, and maintain uniform side and end laps.

1. Lap side laps as recommended by roof membrane manufacturer but not less than 3 inches.

2. Lap end laps as recommended by roof membrane manufacturer but not less than 12 inches.

3. Stagger end laps not less than 18 inches.

4. Heat weld laps, leaving no voids.

5. Roll laps with a 20-pound roller.

6. Repair tears and voids in laps and lapped seams not completely sealed.

D. Apply pressure to the body of the cap sheet according to manufacturer's instructions, to remove air pockets and to result in complete adhesion of base sheet to substrate.

3.10 INSTALLATION OF FOIL-SURFACED FLASHING AND STRIPPING

A. Install base flashing over cant strips and other sloping and vertical surfaces, at roof edges, and at penetrations through roof; secure to substrates according to roofing system manufacturer's written instructions and as follows:

1. Over Concrete and CMU: Prime concrete and CMU substrates with asphalt primer if required by roofing system manufacturer.

2. Adhere backer sheet to asphalt-coated fiberglass mat base sheet in a uniform coating of cold-applied adhesive.

3. Adhere backer sheet over roofing membrane at cants in cold-applied adhesive.

4. Apply solvent-free adhesives for installation of metal-foil-surfaced flashing sheets.

B. Extend base flashing up walls or parapets a minimum of 8 inches above roofing membrane and 4 inches onto field of roofing membrane.

C. Mechanically fasten top of base flashing securely with continuous metal termination bar anchored into substrate at 6 inches o.c. minimum.

D. Roof Drains: Apply liquid primer and catalyzed acrylic resin flashing system accordance with the membrane system manufacturer’s printed installer’s guidelines and other applicable written recommendations as provided by the manufacturer.

1. Clamp flashing system into roof-drain clamping ring.

3.11 INSTALLATION OF FLUID APPLIED PMMA FLASHING AND STRIPPING

A. Using masking tape, mask the perimeter of the area to receive the flashing system.

1. Apply resin primer to substrates.

SBS MODIFIED BITUMINOUS MEMBRANE ROOFING 075216 - 18

B. Pre-cut fleece sheet reinforcement to ensure a proper fit at transitions and corners prior to membrane application.

1. Apply an even base coat of flashing resin to prepared surfaces using a roller at the rate specified by the resin manufacturer.

2. Work the fleece into the wet, catalyzed resin.

3. Lap fleece layers a minimum of 2 inch and apply an additional coat of catalyzed resin between layers of overlapping fleece.

4. Apply an even top coat of catalyzed resin immediately following embedment of the fleece.

5. Ensure that the flashing resin is applied to extend beyond the fleece.

6. Remove the tape before the catalyzed resin cures.

C. Should work be interrupted for more than 12 hours or the surface of the cured resin becomes dirty or contaminated by the elements, wipe the surface to be lapped with new flashing resin using the specified cleaner/solvent.

1. Allow the surface to dry for a minimum 20 minutes and a maximum 60 minutes before continuing work.

3.12 INSTALLATION OF REPLACEMENT ROOF DRAINS

A. Install replacement roof drain according to manufacturer’s written instructions.

1. Remove debris and obstructions from existing roof drain pipe.

2. Verify that there are no traps or bends in the existing roof drain that would obstruct replacement roof drain stem.

3. Insert replacement roof drain stem into existing roof drain and tighten mechanical seal.

4. Fasten replacement roof drain flange to deck or nailers and install flashing.

5. Place clamping ring over flashing and secure to flange studs.

6. Install strainer dome and secure to clamp ring.

3.13 INSTALLATION OF ROOF WALKWAY PADS

A. Walkway Pads: Install walkway pads using units of size indicated or, if not indicated, of manufacturer's standard size, according to walkway pad manufacturer's written instructions.

1. Set walkway pads in cold-applied adhesive.

2. Install walkways as indicated on Drawing, and if not indicated, install walkways at following locations:

a. Perimeter of each rooftop unit and other mechanical equipment which requires periodic maintenance.

b. Between each rooftop unit and other mechanical equipment which requires periodic maintenance locations, creating a continuous path connecting rooftop units and equipment.

SBS MODIFIED BITUMINOUS MEMBRANE ROOFING 075216 - 19

c. Between each roof hatch and each rooftop unit and other mechanical equipment which requires periodic maintenance locations and path connecting rooftop units and equipment.

d. Top and bottom of each roof access ladder with landings on roof surface.

e. Between each roof access ladder and each rooftop unit and other mechanical equipment which requires periodic maintenance locations and paths connecting rooftop units and equipment.

f. As required by roof membrane manufacturer’s warranty requirements.

3. Provide 3-inch clearance, minimum, between adjoining pads.

3.14 FIELD QUALITY CONTROL

A. Manufacturer's Field Service: Engage a site representative qualified by roofing membrane manufacturer to inspect substrate conditions, surface preparation, membrane application, flashings, protection, and drainage components; and to furnish reports to Architect.

1. Minimum inspections include the following milestones:

a. Inspection of during installation of modified base sheet.

b. Inspection just prior to installation of modified cap sheet.

2. Submit written reports of observations during inspections, included problems identified, location of problem, and corrective steps taken.

B. Final Roof Inspection: Arrange for roofing system manufacturer's field service representative to inspect roofing installation on completion, in presence of Architect, and to prepare a written inspection report.

1. Notify Architect and Owner 48 hours in advance of date and time of inspection.

2. Submit copy of manufacturer's technical personnel’s written report of Final Inspection.

C. Repair or remove and replace components of roofing system where inspections indicate that they do not comply with specified requirements.

D. Roofing system will be considered defective if it does not pass tests and inspections.

E. Additional testing and inspecting, at Contractor's expense, will be performed to determine if replaced or additional work complies with specified requirements.

3.15 PROTECTING AND CLEANING

A. Protect roofing system from damage and wear during remainder of construction period.

1. When remaining construction does not affect or endanger roofing, inspect roofing system for deterioration and damage, describing its nature and extent in a written report, with copies to Architect and Owner.

SBS MODIFIED BITUMINOUS MEMBRANE ROOFING 075216 - 20

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 and spillage from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction.

3.16 ROOFING INSTALLER'S WARRANTY

A. WHEREAS _______________________________ of ___________________________, herein called the "Roofing Installer," has performed roofing and associated work ("work") on the following project:

1. Owner: <Insert name of Owner>.

2. Address: <Insert address>.

3. Building Name/Type: <Insert information>.

4. Address: <Insert address>.

5. Area of Work: <Insert information>.

6. Acceptance Date: _________________.

7. Warranty Period: <Insert time>.

8. Expiration Date: __________________.

B. AND WHEREAS Roofing Installer has contracted (either directly with Owner or indirectly as a subcontractor) to warrant said work against leaks and faulty or defective materials and workmanship for designated Warranty Period, C. NOW THEREFORE Roofing Installer hereby warrants, subject to terms and conditions herein set forth, that during Warranty Period Installer will, at Installer's own cost and expense, make or cause to be made such repairs to or replacements of said work as are necessary to correct faulty and defective work and as are necessary to maintain said work in a watertight condition.

D. This Warranty is made subject to the following terms and conditions:

1. Specifically excluded from this Warranty are damages to work and other parts of the building, and to building contents, caused by:

a. lightning;

b. peak gust wind speed exceeding 72;

c. fire;

d. failure of roofing system substrate, including cracking, settlement, excessive deflection, deterioration, and decomposition;

e. faulty construction of parapet walls, copings, chimneys, skylights, vents, equipment supports, and other edge conditions and penetrations of the work;

f. vapor condensation on bottom of roofing; and activity on roofing by others, including construction contractors, maintenance personnel, other persons, and animals, whether authorized or unauthorized by Owner.

SBS MODIFIED BITUMINOUS MEMBRANE ROOFING 075216 - 21

2. When work has been damaged by any of foregoing causes, Warranty shall be null and void until such damage has been repaired by Roofing Installer and until cost and expense thereof have been paid by Owner or by another responsible party so designated.

3. Roofing Installer is responsible for damage to work covered by this Warranty but is not liable for consequential damages to building or building contents resulting from leaks or faults or defects of work.

4. During Warranty Period, if Owner allows alteration of work by anyone other than Roofing Installer, including cutting, patching, and maintenance in connection with penetrations, attachment of other work, and positioning of anything on roof, this Warranty shall become null and void on date of said alterations, but only to the extent said alterations affect work covered by this Warranty. If Owner engages Roofing Installer to perform said alterations, Warranty shall not become null and void unless Roofing Installer, before starting said work, shall have notified Owner in writing, showing reasonable cause for claim, that said alterations would likely damage or deteriorate work, thereby reasonably justifying a limitation or termination of this Warranty.

5. During Warranty Period, if original use of roof is changed and it becomes used for, but was not originally specified for, a promenade, work deck, spray-cooled surface, flooded basin, or other use or service more severe than originally specified, this Warranty shall become null and void on date of said change, but only to the extent said change affects work covered by this Warranty.

6. Owner shall promptly notify Roofing Installer of observed, known, or suspected leaks, defects, or deterioration and shall afford reasonable opportunity for Roofing Installer to inspect work and to examine evidence of such leaks, defects, or deterioration.

7. This Warranty is recognized to be the only warranty of Roofing Installer on said work and shall not operate to restrict or cut off Owner from other remedies and resources lawfully available to Owner in cases of roofing failure. Specifically, this Warranty shall not operate to relieve Roofing Installer of responsibility for performance of original work according to requirements of the Contract Documents, regardless of whether Contract was a contract directly with Owner or a subcontract with Owner's General Contractor.

E. IN WITNESS THEREOF, this instrument has been duly executed this ___________ day of

1. Authorized Signature: _______________________________________.

2. Name: ______________________________________.

3. Title: _______________________________________.

END OF SECTION 075216

± 200'-5"

'-1 11 2"

'-1 1 2"

± 9'-61 2" ± 21'-31

2"

± 116'-2"

± 482'-3"

0' -1

01 2"

'-1 "± 79'-9"

± 495'-5"

'-0

± 40'-11 2" ± 38'-4"

± 263'-81 2"

'-1 11 2"

± 80'-71 2" ± 119'-3"

± 29'-9" ±

'-1 1 2"

ROOF 'C'

ROOF 'B'

ROOF 'A'

ROOF 'D'

ROOF 'F'

ROOF 'H'

ROOF 'K'

(N.I.C.)

ROOF

'P'

ROOF 'Q' ROOF 'R'

(REFER TO 3/A.5)

ROOF 'U'

ROOF 'W'

ROOF 'X'

ROOF 'Y'

ROOF 'D1'

R O

O F

'J

0' 5'10' 20' 40'

SCALE: 132" = 1'-0"

'-6 1 2"

PARKING

GARAGE

ROOF 'CC'

± 30'-5"

'-1 0"

± 10'-10"

± 7'-3"

± 95'-01 2"

± 16'-9"

ROOF 'U1'

ROOF 'T'

± 9'-41 2"

± 21'-61 2"

'-0

1 & 2 A.5

A.3

A.2

A.3

A.2

A.4

ROOF 'V'

ROOF 'EE'

ROOF

'M'

ROOF 'AA'

ROOF 'L'

ROOF 'E' G

AS

GASGAS

ROOF 'N'

ROOF 'FF'

± 30'-5"

'-1 0"

± 10'-10"

± 7'-3"

± 95'-01 2"

± 16'-9" ROOF 'GG'

PARKING

GARAGE

A.5

ROOF 'Z'

ROOF 'G'

ROOF 'S'

'-0

ROOF COMPOSITION

ROOF AREA DECK EXISTING CORE NEW

ASSEMBLY

A ± 669 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 3 4" PERLITE OVER 3" ISO. 5/A.1

B ± 12,867 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 3 4" PERLITE OVER 3" ISO. 5/A.1

C ± 9,684 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 3 4" PERLITE OVER 3" ISO. 5/A.1

D ± 9,650 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 3 4" PERLITE OVER 3" ISO. 5/A.1

D1 ± 58 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 3 4" PERLITE OVER 3" ISO. 5/A.1

E ± 11,821 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 3 4" PERLITE OVER 3" ISO. 5/A.1

F ± 14,170 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 3 4" PERLITE OVER 3" ISO. 5/A.1

G* ± 10,898 ft2 METAL (SLOPED) GRAVEL ON 2-PLY MOD-BIT OVER 3 4" PERLITE & 3" ISO. 2/A.1

H* ± 4,392 ft2 METAL (SLOPED) GRAVEL ON 2-PLY MOD-BIT OVER 3 4" PERLITE & 3" ISO. 2/A.1

J* ± 1,655 ft2 METAL (SLOPED) GRAVEL ON 2-PLY MOD-BIT OVER 3 4" PERLITE & 3" ISO. 2/A.1

K METAL STANDING SEAM METAL PANEL NIC

L ± 300 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 3 4" PERLITE OVER 3" ISO. 5/A.1

M ± 698 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 3 4" PERLITE OVER 3" ISO. 5/A.1

N ± 258 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 3 4" PERLITE OVER 3" ISO. 5/A.1

P ± 693 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 3 4" PERLITE OVER 3" ISO. 5/A.1

Q* ± 123 ft2

CONCRETE

(FLAT)

GRAVEL ON 2-PLY MOD-BIT ON 3 4" PERLITE OVER

TAPERED INSULATION ISO SYSTEM 3/A.1

R* ± 783 ft2

CONCRETE

(FLAT)

GRAVEL ON 2-PLY MOD-BIT ON 3 4" PERLITE OVER

TAPERED INSULATION ISO SYSTEM 3/A.1

S* ± 3,417 ft2 METAL (SLOPED) GRAVEL ON 2-PLY MOD-BIT OVER 3 4" PERLITE & 3" ISO. 2/A.1

T* ± 2,982 ft2 METAL (SLOPED) GRAVEL ON 2-PLY MOD-BIT OVER 3 4" PERLITE & 3" ISO. 2/A.1

U* ± 1,452 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 5 8" COVER BOARD 4/A.1

U1* ± 1,293 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 5 8" COVER BOARD 4/A.1

V* ± 958 ft2 METAL (SLOPED) GRAVEL ON 2-PLY MOD-BIT OVER 3 4" PERLITE & 3" ISO. 2/A.1

W* ± 607 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 5 8" COVER BOARD 4/A.1

X* ± 589 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 5 8" COVER BOARD 4/A.1

Y* ± 4,413 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 5 8" COVER BOARD 4/A.1

Z* ± 468 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 5 8" COVER BOARD 4/A.1

AA* ± 1,349 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 5 8" COVER BOARD 4/A.1

BB* ± 2,981 ft2 CONCRETE

(FLAT)

GRAVEL ON 2-PLY MOD-BIT ON 3 4" PERLITE OVER

TAPERED INSULATION ISO SYSTEM 3/A.1

CC* ± 224 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 5 8" COVER BOARD 4/A.1

EE ± 344 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 3 4" PERLITE OVER 3" ISO. 5/A.1

FF* ± 224 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 5 8" COVER BOARD 4/A.1

GG ± 344 ft2 METAL (SLOPED) 2-PLY MOD-BIT ON 3 4" PERLITE OVER 3" ISO. 5/A.1

NOTES * - THIS AREA IS TO BE COMPLETELY REMOVED & REPLACED

8"

COVER BOARD 2-PLY MODIFIED BITUMEN

ROOF MEMBRANE

METAL DECK

REINFORCED

CONCRETE

RIGID INSULATION

(R-11.4)

RIGID INSULATION

(R-11.4)

~2

~2

2"

VARIES

(12" MIN.)

COVER BOARD

(R-1.3)

2-PLY MODIFIED

BITUMEN ROOF

MEMBRANE

TOTAL ROOF

SYSTEM R-VALUE:

R-27.2 (MIN.)

TAPERED INSULATION

(R-3.1 MIN.)

RIGID INSULATION

(R-12.6)~2

3 16

~2 3 16

1 2"

RIGID INSULATION

(R-12.6)

COVER BOARD

(R-1.3)

2-PLY MODIFIED BITUMEN

ROOF MEMBRANE

TOTAL ROOF

SYSTEM R-VALUE:

R-26.5

EXISTING METAL ROOF DECK

B A.3

B A.3

B A.3

C A.3

H A.5

RD RD

RD

RD

RD

RD

RD

RD

H A.5

X A.7

Z A.7

RD RDOFOF

ROOF 'U'

ROOF 'D'

(ABOVE; REFER TO 1/A.2)

X A.7

X A.7

U A.7

J A.5

J A.5

RD

PV

EV

1 1

'-4

± 31'-51 2"

'-9 1 2"

± 74'-6"

± 29'-8"

'-2

ROOF 'T'

ROOF AREA 'U1';

REFER TO 3/A.4

ROOF AREA 'U1';

REFER TO 2/A.3

B A.3

C A.3

J A.5

ROOF 'U'

ROOF 'S'

TYPICAL KEYED ROOF PLAN NOTES:

- PROVIDE TAPERED INSULATION DRAINAGE CRICKET/SADDLE IN THIS

LOCATION; 12" PER 12" SLOPE (MIN.)

DRAWING KEY

PP UTILITY PENETRATION; REFER TO F/A.4

PV PLUMBING VENT; REFER TO E/A.2

HS HEAT STACK; REFER TO D/A.2

EV EXHAUST VENT; REFER TO ?/A.7

EJ EXPANSION JOINT; REFER TO S/A.6

RTU ROOFTOP H.V.A.C. UNIT

AD ANCHOR DAVIT; REFER TO BB/A.7

RD ROOF DRAIN; REFER TO A/A.3

OF OVERFLOW DRAIN; REFER TO A/A.3

SP SPLASH PAN LOCATION; REFER TO B/A.2

ANT EXISTING ANTENNA

HAT ROOF ACCESS HATCH; REFER TO N/A.6 &

JJ/A.8

~3 "3

4"

EXISTING METAL ROOF DECK

1 2"

NEW 12" COVER

BOARD

NEW 2-PLY MODIFIED

BITUMEN ROOF MEMBRANE

EXISTING ROOF SYSTEM

(REFER TO ROOF COMP. TABLE)

ROOF WORK LEGEND

1. REPLACEMENT AREAS

2. OVERLAY AREAS

3. AREA OF MOISTURE

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

ROOF PLAN - OVERALL1

GENERAL ROOF NOTES

1. INSTALL NEW METAL COMPONENTS @ HEAT STACKS, A/C PENETRATIONS, EXHAUST FANS, ETC.; ALL PIPING, DUCTWORK, LINES, ELECTRICAL, ETC.