Livonia Addendum No. 2.pdf
PDF 410 KB Posted
- Attached to
- LPS Summer 2027 Roof Replacement Bid
- Solicitation number
- RFP LPS 270000000057 3
- Issued by
- Wayne County, Michigan
About this file
Summary
This Addendum No. 2 document, issued by Livonia Public Schools on October 23, 2026, modifies the specifications for the 2027 Roof Remediation project covering Coolidge, Garfield, Roosevelt, and three Annex Buildings located at 15125 Farmington Road, Livonia, Michigan 48154. The project involves comprehensive roof replacement and remediation work across multiple school buildings, with primary specifications addressing elastomeric membrane roofing installation, insulation systems, deck repairs and replacements, wood nailer installation, and associated flashing and sheet metal work. The design team is led by Roofing Technology Associates, Ltd. (RTA Project numbers 22-080, 21-032, 26-052, and 23-057). Key modifications include deletion of specific specification paragraphs related to new roof hatches and safety railing systems at Coolidge Elementary School, clarification of mechanical contractor responsibilities for ductwork disconnection and reinstallation, and confirmation that Pollution Liability Insurance documentation is not required for bid submission despite remaining a contract requirement. The addendum provides answers to bidder questions regarding acceptable gutter manufacturers (Quality Aluminum Products for 6-inch seamless K-style gutters) and clarifies that twenty-five plumbing vent pipe boot flashings must be included in the Base Bid at Garfield Community School.
The specifications establish a single-source requirement for all roofing materials from one manufacturer, with acceptable EPDM membrane options including Carlisle SynTec Sure-Tough or Holcim Elevate RubberGard Max systems. Installation must comply with manufacturer specifications and ASTM standards, with the contractor responsible for obtaining manufacturer certification, maintaining full-time field supervision, and securing final approval from the Roofing Consultant. The project requires a 2-year contractor warranty and a 20-year manufacturer total system warranty. All work must be performed according to strict quality assurance standards including daily watertight tie-ins, daily cleanup, and NESHAP compliance for asbestos-containing materials. The roofing contractor must coordinate with the Owner's Mechanical Contractor for ductwork removal and reinstallation while maintaining building integrity, and various components including roof drains, deck replacements, wood nailers, and insulation repairs are available as Unit Price extras.
View the file
Other files
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
ADDENDUM
FORM A005
12/01/03 ADDENDUM NO. 2 Page 1 of 2
ADDENDUM NO.: 2 DATE: October 23, 2026
PROJECT IDENTIFICATION
PROJECT NAME:
2027 Roof Remediation Specifications – Coolidge, Garfield, Roosevelt, and (3) Annex Buildings
PROJECT NUMBER: 22-080, 21-032, 26-052, 23-057
SITE ADDRESS: Livonia Public Schools Street Address 15125 Farmington Road, Livonia, MI 48154 City State ZIP Code Site Telephone Site Fax
ADDENDUM
The following is a summary of changes to the plans and Specifications that shall be considered part of your Bid.
Receipt of this Addendum shall be acknowledged on the Bid Proposal Form.
This Addendum consists of 2 pages, plus attachments.
SUMMARY OF ADDENDUM:
1. Coolidge Elementary School: Delete Section 07 5300 – Elastomeric Membrane Roofing, Paragraphs 2.05 I and J.
2. Coolidge Elementary School: Delete Section 07 5300 – Elastomeric Membrane Roofing, Paragraph 3.02 A. 20.
3. Coolidge Elementary School: Delete Section 07 5300 – Elastomeric Membrane Roofing, Paragraph 3.04 D. 3.
4. Coolidge Elementary School: The Owner's Mechanical Contractor will be responsible for disconnecting, temporarily removing, and reinstalling the necessary sections of existing ductwork at the gymnasium wall penetration and at the existing rooftop unit (RTU) located on Roof Area D, adjacent to Roof Area E. The Roofing Contractor shall coordinate with the Owner's Mechanical Contractor to schedule the ductwork removal and reinstallation to facilitate the specified roofing work. The Roofing Contractor will be responsible for maintaining watertight conditions on the building and RTU while the ductwork is temporarily disconnected.
5. Responses to questions
- Question: The specifications require Pollution Liability Insurance. If a quote cannot be obtained prior to the bid submission deadline, will the bid be considered nonresponsive?
- Answer: No. Failure to include a Pollution Liability Insurance quote with the bid submission will not disqualify your bid. However, the specified insurance requirements remain in effect.
-Question: There is an alternate for new gutters on the Annex Buildings. Is Quality Aluminum Products acceptable for the 6-inch seamless K-style gutters?
-Answer: Yes, this is acceptable.
-Question: Which flashings on the standing seam sheet metal roof at Garfield Community School are being replaced and how many are there?
-Answer: Just the plumbing vent pipe boot flashings are to be replaced. Include replacement of twenty-five (25) plumbing vent pipe boot flashings in the Base Bid. Specified as DMI Pipe- Master, Dyna-Flash Pipe Flashing, or approved equal.
DESIGN TEAM LEAD:
NAME: Roofing Technology Associates, Ltd.
ADDRESS: 38031 Schoolcraft
Livonia, Michigan
TELEPHONE: 734-591-4444 FAX:
E-MAIL: awisney@rtaltd.com
SIGNATURE:
LIVONIA PUBLIC SCHOOLS
COOLIDGE ELEMENTARY SCHOOL
RTA PROJECT NO. 22-080
ELASTOMERIC MEMBRANE ROOFING
SECTION 07 5300 - 6
2.05 MISCELLANEOUS
A. Tectum deck replacement: Match existing roof deck: width, length and thickness. Provide grout to fill Tectum deck joints.
B. Steel deck replacement: Match existing roof deck; material, gauge, profile and finish.
C. Acoustical steel deck replacement: Match existing roof deck; material, gauge, profile and finish.
D. Plates to cover small holes in the various roof deck types and isolated areas of deterioration shall be 18-gauge galvanized steel. Maximum hole size: 6-inches by 6-inches.
E. Filler for sheet metal penetration pockets shall be non-shrink grout (bottom) and pourable elastomeric sealant (top).
F. Replacement roof drains and accessories for the low-slope roof areas shall be cast iron as manufactured by J. R. Smith Manufacturing Co., 1000 Series, Size: to match the existing diameter and a bottom outlet to match the existing drain pipe. Acceptable connection: Speedi- Set Gasket. Utilize the drain manufacturer's specified cast iron underdeck clamp, clamping ring and drain strainer.
G. Replacement roof drain strainers and clamping rings shall be cast iron, sized to fit the existing roof drain bowl.
H. Walkway Pads: 30-inch by 30-inch by 0.30-inch thick composite rubber with factory laminated seam tape on the back surface, diamond or button tread.
I. New Roof Hatch: Bilco Company, Type S-50 aluminum.
J. Roof Hatch Safety Railing System: OSHA Compliant roof hatch mounted safety rail system.
Powder coated steel; color: yellow. As manufactured by or approved equal:
1. Bilco Company, Bil-Guard 2.0 Roof Hatch Safety Rail.
K. Premanufactured Pipe Supports: PHP Systems roller pipe supports sized for the pipe being supported or approved equal.
PART 3 EXECUTION
3.01 EXAMINATION
A. Verify that surfaces and site conditions are ready to receive work.
B. Verify deck is supported and secure.
C. Verify walls and roof deck are clean and smooth, flat, free of depressions, waves, or projections, properly sloped and suitable for installation of roof system.
D. Verify roof deck surfaces are dry and free of snow or ice.
E. Maintain a daily watertight condition in the existing roof areas. At no time shall the existing roof remain vulnerable to moisture intrusion. Overnight tie-ins are required regardless of the weather forecast.
3.02 DEMOLITION AND SURFACE PREPARATION
A. Remove and discard the following components or prepare surfaces as described:
1. Remove and discard the existing roof membrane, base flashing, roof insulation, cant strips, Tectum cant strips and other miscellaneous existing roofing down to the structural roof deck.
a. Existing 1.5-inch isocyanurate insulation on Areas A, D1, and F is to remain.
b. NOTE: PVC membrane seams with mechanical fasteners may be present below the top PVC roof membrane.
c. NOTE: Limit the amount of water sprayed on the built-up roof to prevent leaks in the building.
2. Remove and discard wet, deteriorated or damaged existing 1.5-inch thick insulation in
Areas A, D1, and F. 1.5-inch thick insulation determined to be in good condition is to remain.
a. NOTE: 1.5-inch thick roof insulation replacement shall be bid as a Unit Price Extra.
rta10 Cross-Out rta10 Callout Addendum No. 2
RTA PROJECT NO. 22-080
ELASTOMERIC MEMBRANE ROOFING
SECTION 07 5300 - 7
3. Remove and discard the existing fascia cap, coping, gravel stop/ fascia, counterflashing, gutter, downspout and other sheet metal flashing accessories.
4. Remove and discard the termination bars and fasteners from the walls and perimeter edges. Remove and discard the repair materials from the walls and perimeter edges.
5. Temporarily displace mechanical ventilator unit covers to facilitate the removal and replacement of the base flashing. Remove and discard existing counterflashing from the roof curbs if present. Prepare to raise roof curbs with flashing height less than 8-inches.
6. Remove and discard existing plumbing vent pipe flashings. Clean off all repair materials and caulk from the pipes.
7. Save and reuse the existing sheet metal flange, sleeve and umbrella flashings from the hot vent stacks.
8. Save and reuse the existing duct supports.
9. Remove and discard the existing penetration pocket flashing and filler material. Clean off the penetrations to remain.
10. Remove and discard the obsolete rooftop equipment as shown on the Roof Plan. Prepare to infill the resultant openings in the roof deck with matching roof deck.
11. Temporarily displace supply lines (electrical and gas) to facilitate the removal and replacement of the roof system. Remove and discard existing pipe supports. Replace with specified pipe supports.
12. Remove and discard roof drain inserts. Review the existing roof drain for condition and prepare to replace the roof drain if necessary. If the roof drain can be reused, provide new cast iron clamping ring and roof drain strainer.
a. NOTE: Roof drain inserts will not be allowed to be installed in the new roof system.
13. Remove and discard plastic or broken roof drain strainers. Provide replacement cast iron roof drain strainers.
14. Closely inspect the existing roof drain bowls for cracks, broken flanges or deteriorated conditions. Remove and replace any damaged drain bowl with a matching cast iron drain bowl. The installation shall be in accordance with local plumbing codes.
a. Roof drain replacement shall be bid as a Unit Price extra.
15. Thoroughly clean out the roof drain bowls, clamping rings and roof drain strainers in preparation for reuse.
16. Remove and discard deteriorated wood nailers and plywood.
a. NOTE: Wood nailer and plywood replacement shall be bid as a Unit Price extra.
17. Prior to cutting and removing deteriorated roof deck, the area below the required deck replacement area must be cordoned off and monitored by the Contractor's appointed safety coordinator during the entire cutting and patching procedure. The safety coordinator must be in communication with the foreman during removal and replacement and have in his possession a fully charged fire extinguisher.
18. Closely inspect the existing roof deck for deteriorated conditions or holes. Repair isolated deck damage not exceeding 6-inches x 6-inches with 18-gauge galvanized steel plate.
a. NOTE: Roof deck repairs shall be bid as a Unit Price Extra.
19. Remove and replace deteriorated roof deck with matching roof deck to provide a structurally sound roof deck.
a. NOTE: Roof deck replacement shall be bid as a Unit Price Extra.
20. Prepare to install a new roof hatch curb in Area A by cutting and removing the existing Tectum deck to the size opening required by the roof hatch manufacturer.
a. Provide structural steel framing around the new opening to properly support the new roof deck and roof hatch. Secure the structural steel to existing structural steel with nut and bolt fasteners.
21. Remove debris, scrap and rubbish from the roof areas and building grounds daily.
22. The Roofing Contractor is required to follow NESHAP regulations for any asbestos containing material (test results in Appendix).
rta10 Cross-Out rta10
RTA PROJECT NO. 22-080
ELASTOMERIC MEMBRANE ROOFING
SECTION 07 5300 - 9
b. Install fiberglass batt insulation flute filler in the deck ribs of the acoustical steel deck where new deck is installed or where the existing fiberglass batt insulation flute filler was removed due to water damage.
B. Tectum Deck
1. Install matching replacement decking where the existing decking was removed due to deterioration. Install replacement decking with the long dimension engaged with the manufactured tongue and groove. Support the endjoints on the existing structural supports by the maximum dimension possible. The installation shall be in accordance with the deck panel manufacturer's specifications.
2. Mechanically fasten and solidly grout the deck joints in accordance with the manufacturer's requirements.
C. Roof Drain Replacement
1. The Contractor shall hire a licensed plumbing subcontractor to install replacement roof drains as necessary. The Contractor shall coordinate the roof drain installation with the plumber. Temporary roofing work needed at the roof drain location shall be provided by the Contractor at no additional cost to the Owner.
a. Install new roof drain assemblies at the deteriorated roof drain locations. Utilize the manufacturer's recommended underdeck clamp to secure the drain bowl in place or to the sump pan.
b. The new roof drain shall be connected to the existing drain pipes in accordance with state and local plumbing codes and the drain manufacturers requirements. Insulate the new roof drain and drain pipe to prevent condensation. Water test the new roof drain to verify that the new roof drain functions properly.
c. Install new cast iron clamping rings and cast iron roof drain strainers at the new replacement roof drain locations.
D. Wood Nailers
1. Install new wood nailers as designated on the attached RTA Details. Secure the wood nailers to existing wood nailers with galvanized 16d nails in two staggered rows spaced 12-inches on center. Secure new wood nailer to the steel deck withh heavy duty screws spaced 24-inches on center. Secure new wood nailers to Tectum roof deck areas with polymer fasteners spaced 16-inches on center.
2. Install wood nailers at roof curbs which are not 8-inches above the new finished roof surface. The wood nailers shall be installed to match the existing opening or inside dimension of the curb. The wood nailers shall be a minimum of 1.5-inches thick and shall be of sufficient width to provide a minimum curb height of 8-inches above the completed roof surface. Secure the wood nailers with appropriate fasteners.
3. Install wood nailers at the new roof hatch to match the adjacent insulation thickness. Install the new roof hatch at the approximate location shown on the Roof Plans in accordance with the manufacturer’s requirements. Secure the wood nailers with heavy duty screws spaced 12- inches on center.
4. Install replacement wood nailers where the existing wood nailers were removed due to deterioration. The wood nailers shall be secured using the same methods that the originally installed wood nailers were secured and/or in a manner to provide solid securement.
5. Resecure all loose existing wood nailers to provide solid securement for the new roof system and perimeter edge sheet metal. Secure the existing wood nailers with appropriate fasteners.
3.05 INSTALLATION - INSULATION
A. General
1. Install the specified insulation in accordance with manufacturer's latest printed instructions as shown on the Roof Plan Insulation Schedule.
rta10 Cross-Out rta10
| PROJECT IDENTIFICATION |
| Coolidge Roof Hatch.pdf |
| PART 1 GENERAL |
| 1.01 RELATED DOCUMENTS |
| A. Section 07 6200 - Sheet Metal Flashing and Trim |
| 1.02 SECTION INCLUDES |
| A. Furnish all labor, materials and equipment required, and furnish and install roofing and sheet metal, complete with all accessories and incidentals required, in accordance with the Drawings and these Specifications, including but not limited to the... |
| 1. Removal of existing roofing systems, insulation and base flashings. |
| 2. Roof insulation, flat stock and tapered insulation. |
| 3. Single-ply roofing and base flashings. |
| 4. Wood blocking and nailers. |
| B. Existing Roofing |
| 1. See the New and Existing Insulation Schedule on the Roof Plan. |
| 1.03 REFERENCE STANDARDS |
| A. ASTM C1289 - Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board 2021. |
| B. ASTM D412 - Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers--Tension 2016 (Reapproved 2021). |
| C. ASTM D4637/D4637M - Standard Specification for EPDM Sheet Used in Single-Ply Roof Membrane 2015 (Reapproved 2021). |
| D. UL (DIR) - Online Certifications Directory Current Edition. |
| E. UL (FRD) - Fire Resistance Directory Current Edition. |
| 1.04 QUALITY ASSURANCE |
| A. Qualifications of Installers |
| 1. Roofing installer must be currently approved by the manufacturer of the selected roofing system. |
| B. Standards |
| 1. Accomplish work under this Section in strict accordance with the roofing manufacturer's published installation instructions and best trade practices to achieve a completely watertight roofing and flashing installation. |
| 2. Provide materials which have been tested, listed and labeled by Underwriters Laboratories (UL). |
| 3. Roof insulation shall be approved components by Factory Mutual for insulated deck construction and shall bear FM approval mark and meet I-60 wind uplift requirements. |
| C. General |
| 1. Be responsible for measurements. Before ordering material, preparing shop drawings, or doing any work, verify at the site all dimensions which may affect the work. Assume full responsibility for the accuracy of figures. No allowance for addition... |
| 2. Immediately refer to any conflicts among requirements of these specifications on drawings, those of regulatory agencies, material manufacturer's recommendations and good roofing practices to the Roof Consultant. |
| 3. Accomplish all work in strict compliance with the roofing manufacturer's latest published specifications and details reviewed by the Roof Consultant and shall follow the best trade practices to achieve a complete watertight roofing and flashing ins... |
| 4. Final results are the entire responsibility of the Contractor. |
| D. Installer Qualifications: A single installer ("Roofer") shall perform work of this section; and shall be a firm with not less than 5 years of successful experience in installation of roofing systems similar to those required for this project and w... |
| 1. Installer Certification: Obtain written certification from manufacturer of roofing system certifying that Installer is approved by manufacturer for installation of specified roofing system. The certification shall be submitted with the bid. |
| 2. Installer's Field Supervision: Installer must maintain full-time supervision on jobsite during times that roofing work is in progress. Supervisor must have a minimum of 5 years experience in roofing work similar in nature and scope to specified r... |
| 1.05 SUBMITTALS |
| A. Provide Safety Data Sheets (SDS) to the Owner for any materials prior to delivery to the site. |
| B. Product Data: Provide data indicating membrane materials, flashing materials, insulation, vapor retarder, and fasteners. |
| C. Shop Drawings: Indicate joint or termination detail conditions, conditions of interface with other materials, and tapered insulation layout plan. |
| D. Safety and Work Schedule |
| 1. Submit copies of your written Safety Plan to the Owner. |
| 2. Submit a written work schedule to the Owner with a detailed time line from Contract Award to project completion. |
| E. Manufacturer's Installation Instructions: Indicate membrane seaming precautions and perimeter conditions requiring special attention. |
| F. Manufacturer's Field Reports: Indicate procedures followed, ambient temperatures, humidity, wind velocity during application, and supplementary instructions given. |
| G. Warranty: Submit manufacturer warranty and ensure forms have been completed in Owner's name and registered with manufacturer. |
| 1.06 INSPECTION |
| A. Prior to final payment, and as a condition thereof, the Contractor shall obtain final approval from Roofing Technology Associates, Ltd. indicating proper compliance with the Contract Documents. The Contractor shall coordinate inspection services du... |
| B. The Roofing Consultant shall perform inspections as work is being performed to insure conformance with manufacturer's recommendations and recognized roofing procedures. |
| C. The Roofing Consultant shall review and approve all shop drawing submittals. |
| D. Notify Roofing Consultant whenever roofing work is to be done, in sufficient time to arrange inspections. Provide safe access to the roof for inspection. |
| E. Furnish Roofing Consultant with all pertinent job information prior to beginning work in accordance with Roofing Consultant directions. |
| F. The Roofing Consultant shall perform any testing required to verify the integrity of the work and confirm that work is in conformance with manufacturer's recommendations. |
| 1.07 PRE-CONSTRUCTION MEETING |
| A. Prior to scheduled commencement of roofing work, the Contractor and representatives of other entities directly concerned with performance of roofing system shall have a pre-construction meeting. Review requirements (Contract Documents), submittals... |
| 1. Tour representative areas of roofing substrates, inspect and discuss conditions of substrate. |
| 2. Review roofing system requirements (drawings, specifications and other Contract Documents). |
| 3. Review required submittals. |
| 4. Review and finalize construction schedule related to roofing work and verify availability of materials, Installer's personnel, equipment and facilities needed to make progress and avoid delays. |
| 5. Review required inspection, testing, certifying and material usage accounting procedures. |
| 6. Review weather and forecasted weather conditions and procedures for coping with unfavorable conditions, including possibility of temporary roofing. |
| 1.08 DELIVERY, STORAGE, AND HANDLING |
| A. Deliver materials in manufacturer's original containers, dry and undamaged, with seals and labels intact. |
| B. Ensure storage and staging of materials does not exceed static and dynamic load-bearing capacities of roof decking. |
| C. Store and handle roofing materials in a manner which will prevent moisture damage. Store adhesives and flashings in a dry, warm, well-ventilated, weather-tight place. Handle and store materials or equipment in a manner to avoid significant or per... |
| D. Provide a 6-foot high chain link fence system around the storage and set-up areas. |
| 1.09 PROJECT CONDITIONS |
| A. Coordinate the work with installation of associated flashings and counterflashings installed by other sections as the work of this section proceeds. |
| 1.10 WARRANTY |
| A. Furnish the Owner with a Contractor’s written warranty covering all materials and workmanship for a 2-year period after Date of Substantial Completion. |
| B. Manufacturer’s Warranty: Furnish Owner with the selected roofing manufacturer’s 20-year total system warranty covering all materials and labor. |
| PART 2 PRODUCTS |
| 2.01 MANUFACTURERS |
| A. Performance: Provide roofing materials recognized to be of generic type indicated and tested to show compliance with indicated performances, or provide other similar materials certified in writing by roofing manufacturer to be equal or better than... |
| B. Compatibility: Provide products which are recommended by the roofing manufacturer to be fully compatible with indicated substrates, or provide separation materials as required to eliminate contact between incompatible materials. |
| C. EPDM Membrane Materials: |
| 1. Carlisle SynTec Incorporated; Sure-Tough EPDM Reinforced Membrane Roofing System, Design "A" - Fully Adhered: www.carlisle-syntec.com. |
| 2. Holcim Elevate Roofing Systems; RubberGard Max Fully Adhered System: www.holcimelevate.com. |
| 2.02 ROOFING MEMBRANE AND ASSOCIATED MATERIALS |
| A. Membrane: Ethylene-propylene-diene-monomer (EPDM); externally reinforced with fabric; complying with minimum properties of ASTM D4637/D4637M. |
| 1. Thickness: 60 mil, 0.060 inch. |
| 2. Membrane: 0.060-inch thick, reinforced, EPDM (Ethylene Propylene Diene Monomer) compounded elastomer. Membrane sheet size shall be the largest sheet possible as determined by the job conditions. |
| B. Base Flashing: Reinforced .060-inch thick EPDM flashing sheet as furnished by the roofing manufacturer. |
| C. All materials used in the roofing system shall be as furnished by a single roofing manufacturer. Seam tape, adhesives, cleaners, sealants, water cut-off mastic and other required items shall be as furnished or recommended by a single roofing manuf... |
| D. All details relating to the installation of the roof system shall be approved by the roofing manufacturer and installed in such a manner that the roofing manufacturer will furnish its 20-year total system warranty for the installation. |
| 2.03 INSULATION |
| A. Manufacturers: Match the roofing manufacturer. Subject to compliance with requirements: |
| 1. Carlisle SynTec Incorporated, InsulBase Polyiso, InsulBase Tapered Polyiso and SecurShield HD Plus Polyiso Cover Board. |
| 2. Holcim Elevate, ISOGARD GL Flat, ISOGARD GL Tapered and ISOGARD HD Cover Board. |
| 3. Georgia-Pacific, Densdeck Prime Roof Board. |
| B. Insulation Materials: |
| 1. Flat Stock Roof Insulation: Closed-cell polyisocyanurate foam core with non-HCFC blowing agent, integrally laminated to heavy non-asphaltic fiber reinforced felt facers; conform to ASTM C 1289-13e1, Type II, Grade 2. |
| a. Thermal Resistivity (R-value): 15.0 at 75 degrees F for 2.6-inch thick insulation board. |
| b. Thermal Resistivity (R-value): 11.4 at 75 degrees F for 2.0-inch thick insulation board. |
| c. Thermal Resistivity (R-value): 8.5 at 75 degrees F for 1.5-inch thick replacement insulation board. |
| d. Compressive Strength: 20 psi. |
| e. Maximum size (mechanically fastened): 4-feet by 8-feet. |
| f. Maximum size (adhered): 4-feet by 4-feet. |
| g. Provide other thicknesses as required. |
| 2. Tapered Roof Insulation: Closed-cell polyisocyanurate foam core with non-HCFC blowing agent, integrally laminated to heavy non-asphaltic fiber reinforced felt facers; conform to ASTM C 1289-13e1, Type II, Grade 2. |
| a. Slope: 1/8-inch per foot. |
| b. Compressive Strength: 20 psi. |
| c. Maximum size: 4-feet by 4-feet. |
| d. Minimum thickness: 1/2-inch. |
| 3. Roof Sumps: Closed-cell polyisocyanurate foam core with non-HCFC blowing agent, integrally laminated to heavy non-asphaltic fiber reinforced felt facers; conform to ASTM C 1289-13e1, Type II, Grade 2. |
| a. Slope: 1/4-inch per foot. |
| b. Maximum size: 4-feet by 4-feet. |
| c. Minimum thickness: 1/2-inch. |
| 4. Roof Sumps and Saddles: Closed-cell polyisocyanurate foam core with non-HCFC blowing agent, integrally laminated to heavy non-asphaltic fiber reinforced felt facers; conform to ASTM C 1289-13e1, Type II, Grade 2. |
| a. Slope: 1/2-inch per foot. |
| b. Maximum size: 4-feet by 4-feet. |
| c. Minimum thickness: 1/2-inch. |
| d. Roof sump size: 8-feet by 8-feet. |
| 5. Cover Board (Areas A, D1, and F): Closed-cell polyisocyanurate foam core with non-HCFC blowing agent, integrally laminated to glass coated facers; conform to ASTM C 1289, Type II, Class 4, Grade 1. |
| a. Thermal Resistivity (R-value): 2.5 at 75 degrees F for 0.5-inch thick insulation board. |
| b. Compressive Strength: 80 to 109 psi minimum. |
| c. Maximum size: 4-feet by 4-feet. |
| d. Minimum thickness: 1/2-inch. |
| 6. Gypsum Roof Board (Area E only): Fiberglass mat faced gypsum, roof board. Fire resistance rating (UL 790 and ASTM E108): Class A. Approved for use with fully adhered roof membrane. Thickness: 1/2-inch. Maximum board size: 4-feet by 4-feet. |
| a. Acceptable product or approved equal: GP, DensDeck Prime or U.S. Gypsum Securock. |
| 7. Tapered Edge Strips: Wood fiber uniform density board complying to ASTM C 208. |
| a. Tapered edge strip: 1-1/2-inches by 18-inches. |
| 8. Acoustical Steel Deck Rib Fill: Fiber glass batt insulation (unfaced). Size to fit the deck ribs. |
| 9. Expansion Joint Material: 6 mil polyethylene sheeting (vapor retarder), fiber glass batt insulation (unfaced). |
| C. Fasteners for securing the roof insulation to steel roof deck shall be a heavy duty screw (self-drilling) and metal plate system approved by the roofing manufacturer for the type of deck being covered. The fasteners shall provide a minimum of 300 p... |
| 1. Carlisle SynTec Incorporated – Sure Seal HP Fasteners |
| 2. Holcim Elevate - Heavy Duty Fasteners |
| D. Fasteners for securing the roof insulation to the Tectum roof deck shall be polymer fasteners and 3-inch steel plates. |
| 1. Carlisle SynTec Incorporated, Gyptec Fasteners. |
| 2. Holcim Elevate, Polymer Fasteners. |
| E. Insulation Adhesive: Two-component, construction grade, insulating polyurethane low-rise adhesive. Approved manufacturers and products: |
| 1. Carlisle SynTec Incorporated, FAST Bag in a Box Adhesive. |
| 2. Holcim Elevate, I.S.O. Stick Adhesive. |
| 2.04 WOOD NAILERS AND PLYWOOD |
| A. Wood nailers and blocking: PS 20, construction grade lumber. |
| 1. Sizes: Nominal sizes as indicated on drawings, S4S. |
| 2. Moisture Content: S-dry or MC19. |
| 3. Species: SPF. |
| 4. Grade: No. 2. |
| B. Plywood Sheathing: PS 1, Grade C-D, Exposure I. Thicknesses: 3/4-inch and 5/8-inch. |
| C. Fasteners in contact with wood blocking and nailers: Galvanized nails in conformance with ASTM A153 unless otherwise specified. |
| 2.05 MISCELLANEOUS |
| A. Tectum deck replacement: Match existing roof deck: width, length and thickness. Provide grout to fill Tectum deck joints. |
| B. Steel deck replacement: Match existing roof deck; material, gauge, profile and finish. |
| C. Acoustical steel deck replacement: Match existing roof deck; material, gauge, profile and finish. |
| D. Plates to cover small holes in the various roof deck types and isolated areas of deterioration shall be 18-gauge galvanized steel. Maximum hole size: 6-inches by 6-inches. |
| E. Filler for sheet metal penetration pockets shall be non-shrink grout (bottom) and pourable elastomeric sealant (top). |
| F. Replacement roof drains and accessories for the low-slope roof areas shall be cast iron as manufactured by J. R. Smith Manufacturing Co., 1000 Series, Size: to match the existing diameter and a bottom outlet to match the existing drain pipe. Accep... |
| G. Replacement roof drain strainers and clamping rings shall be cast iron, sized to fit the existing roof drain bowl. |
| H. Walkway Pads: 30-inch by 30-inch by 0.30-inch thick composite rubber with factory laminated seam tape on the back surface, diamond or button tread. |
| I. New Roof Hatch: Bilco Company, Type S-50 aluminum. |
| J. Roof Hatch Safety Railing System: OSHA Compliant roof hatch mounted safety rail system. Powder coated steel; color: yellow. As manufactured by or approved equal: |
| 1. Bilco Company, Bil-Guard 2.0 Roof Hatch Safety Rail. |
K. Premanufactured Pipe Supports: PHP Systems roller pipe supports sized for the pipe being supported or approved equal.
| PART 3 EXECUTION |
| 3.01 EXAMINATION |
| A. Verify that surfaces and site conditions are ready to receive work. |
| B. Verify deck is supported and secure. |
| C. Verify walls and roof deck are clean and smooth, flat, free of depressions, waves, or projections, properly sloped and suitable for installation of roof system. |
| D. Verify roof deck surfaces are dry and free of snow or ice. |
| E. Maintain a daily watertight condition in the existing roof areas. At no time shall the existing roof remain vulnerable to moisture intrusion. Overnight tie-ins are required regardless of the weather forecast. |
| 3.02 DEMOLITION AND SURFACE PREPARATION |
| A. Remove and discard the following components or prepare surfaces as described: |
| 1. Remove and discard the existing roof membrane, base flashing, roof insulation, cant strips, Tectum cant strips and other miscellaneous existing roofing down to the structural roof deck. |
| a. Existing 1.5-inch isocyanurate insulation on Areas A, D1, and F is to remain. |
| b. NOTE: PVC membrane seams with mechanical fasteners may be present below the top PVC roof membrane. |
| c. NOTE: Limit the amount of water sprayed on the built-up roof to prevent leaks in the building. |
| 2. Remove and discard wet, deteriorated or damaged existing 1.5-inch thick insulation in Areas A, D1, and F. 1.5-inch thick insulation determined to be in good condition is to remain. |
| a. NOTE: 1.5-inch thick roof insulation replacement shall be bid as a Unit Price Extra. |
| 3. Remove and discard the existing fascia cap, coping, gravel stop/ fascia, counterflashing, gutter, downspout and other sheet metal flashing accessories. |
| 4. Remove and discard the termination bars and fasteners from the walls and perimeter edges. Remove and discard the repair materials from the walls and perimeter edges. |
| 5. Temporarily displace mechanical ventilator unit covers to facilitate the removal and replacement of the base flashing. Remove and discard existing counterflashing from the roof curbs if present. Prepare to raise roof curbs with flashing height le... |
| 6. Remove and discard existing plumbing vent pipe flashings. Clean off all repair materials and caulk from the pipes. |
| 7. Save and reuse the existing sheet metal flange, sleeve and umbrella flashings from the hot vent stacks. |
| 8. Save and reuse the existing duct supports. |
| 9. Remove and discard the existing penetration pocket flashing and filler material. Clean off the penetrations to remain. |
| 10. Remove and discard the obsolete rooftop equipment as shown on the Roof Plan. Prepare to infill the resultant openings in the roof deck with matching roof deck. |
| 11. Temporarily displace supply lines (electrical and gas) to facilitate the removal and replacement of the roof system. Remove and discard existing pipe supports. Replace with specified pipe supports. |
| 12. Remove and discard roof drain inserts. Review the existing roof drain for condition and prepare to replace the roof drain if necessary. If the roof drain can be reused, provide new cast iron clamping ring and roof drain strainer. |
| a. NOTE: Roof drain inserts will not be allowed to be installed in the new roof system. |
| 13. Remove and discard plastic or broken roof drain strainers. Provide replacement cast iron roof drain strainers. |
| 14. Closely inspect the existing roof drain bowls for cracks, broken flanges or deteriorated conditions. Remove and replace any damaged drain bowl with a matching cast iron drain bowl. The installation shall be in accordance with local plumbing codes. |
| a. Roof drain replacement shall be bid as a Unit Price extra. |
| 15. Thoroughly clean out the roof drain bowls, clamping rings and roof drain strainers in preparation for reuse. |
| 16. Remove and discard deteriorated wood nailers and plywood. |
| a. NOTE: Wood nailer and plywood replacement shall be bid as a Unit Price extra. |
| 17. Prior to cutting and removing deteriorated roof deck, the area below the required deck replacement area must be cordoned off and monitored by the Contractor's appointed safety coordinator during the entire cutting and patching procedure. The safet... |
| 18. Closely inspect the existing roof deck for deteriorated conditions or holes. Repair isolated deck damage not exceeding 6-inches x 6-inches with 18-gauge galvanized steel plate. |
| a. NOTE: Roof deck repairs shall be bid as a Unit Price Extra. |
| 19. Remove and replace deteriorated roof deck with matching roof deck to provide a structurally sound roof deck. |
| a. NOTE: Roof deck replacement shall be bid as a Unit Price Extra. |
| 20. Prepare to install a new roof hatch curb in Area A by cutting and removing the existing Tectum deck to the size opening required by the roof hatch manufacturer. |
| a. Provide structural steel framing around the new opening to properly support the new roof deck and roof hatch. Secure the structural steel to existing structural steel with nut and bolt fasteners. |
| 21. Remove debris, scrap and rubbish from the roof areas and building grounds daily. |
| 22. The Roofing Contractor is required to follow NESHAP regulations for any asbestos containing material (test results in Appendix). |
| 3.03 INSTALLATION - GENERAL |
| A. General: Comply with roofing manufacturer's instructions, except where more stringent requirements are indicated herein. |
| 1. Details relating to the installation of the new roof system shall be approved by the roofing manufacturer and the Roofing Consultant and installed in such a manner that the roofing manufacturer will furnish the specified warranty for the installation. |
| 2. Do not begin roofing work until all decks, walls, curbs, nailers, accessories, and underlying substrates are ready and acceptable to have roofing materials installed. Deck surfaces must be clean, smooth, dry and free of moisture prior to beginning ... |
| 3. Schedule and supervise work crews so that the area of roofing begun one day is completely finished before leaving the job site that day. Included are all flashings within each day's work area. |
| 4. Do not install any roofing materials during rain or other inclement weather. One exception is that temporary work may be installed during such weather to protect the building interior and new materials that are already installed. Remove all tempora... |
| 5. At the end of each day's roofing installation, protect edge of incomplete work, including membrane and insulation. Install temporary water cut-offs to provide a weather tight seal to both the roof deck and existing roof membrane. Remove temporary w... |
| 6. Materials must be stored dry and protected with tarps and on pallets at all times. Wet or damaged materials will be removed from the job site. |
| 7. The Contractor will be responsible for cleaning the building interior on a daily basis of any reroofing related debris entering the building as a result of deck repair and reroofing operations. Provide 6 mil plastic sheets to cover the interior as ... |
| 8. Construct a temporary walkway system with a minimum 1.5-inch thick insulation and 3/4-inch thick plywood to protect the existing roof (inside the areas designated for removal and replacement), where traffic is to cross the roof to the disposal area. |
| 3.04 INSTALLATION - SUBSTRATE |
| A. Steel Deck |
| 1. Repairs: Install 18-gauge galvanized plates at small holes (less than 6-inches by 6-inches) and/or at isolated areas of deterioration of the steel roof decks. The plates shall extend 6-inches past the deficient area in each direction. Secure the st... |
| 2. Replacement: Install new steel roof deck to cover resultant openings at obsolete rooftop equipment or where deteriorated steel roof deck was removed. |
| a. The new steel deck shall not span less than three supports when replacing deteriorated decking. The deck may be installed in single spans (two supports) where obsolete curbs are removed, provided the opening is framed with steel and the opening is ... |
| b. Install fiberglass batt insulation flute filler in the deck ribs of the acoustical steel deck where new deck is installed or where the existing fiberglass batt insulation flute filler was removed due to water damage. |
| B. Tectum Deck |
| 1. Install matching replacement decking where the existing decking was removed due to deterioration. Install replacement decking with the long dimension engaged with the manufactured tongue and groove. Support the endjoints on the existing structural ... |
| 2. Mechanically fasten and solidly grout the deck joints in accordance with the manufacturer's requirements. |
| C. Roof Drain Replacement |
| 1. The Contractor shall hire a licensed plumbing subcontractor to install replacement roof drains as necessary. The Contractor shall coordinate the roof drain installation with the plumber. Temporary roofing work needed at the roof drain location shal... |
| a. Install new roof drain assemblies at the deteriorated roof drain locations. Utilize the manufacturer's recommended underdeck clamp to secure the drain bowl in place or to the sump pan. |
| b. The new roof drain shall be connected to the existing drain pipes in accordance with state and local plumbing codes and the drain manufacturers requirements. Insulate the new roof drain and drain pipe to prevent condensation. Water test the new roo... |
| c. Install new cast iron clamping rings and cast iron roof drain strainers at the new replacement roof drain locations. |
| D. Wood Nailers |
| 1. Install new wood nailers as designated on the attached RTA Details. Secure the wood nailers to existing wood nailers with galvanized 16d nails in two staggered rows spaced 12-inches on center. Secure new wood nailer to the steel deck withh heavy du... |
| 2. Install wood nailers at roof curbs which are not 8-inches above the new finished roof surface. The wood nailers shall be installed to match the existing opening or inside dimension of the curb. The wood nailers shall be a minimum of 1.5-inches thic... |
| 3. Install wood nailers at the new roof hatch to match the adjacent insulation thickness. Install the new roof hatch at the approximate location shown on the Roof Plans in accordance with the manufacturer’s requirements. Secure the wood nailers with ... |
| 4. Install replacement wood nailers where the existing wood nailers were removed due to deterioration. The wood nailers shall be secured using the same methods that the originally installed wood nailers were secured and/or in a manner to provide solid... |
| 5. Resecure all loose existing wood nailers to provide solid securement for the new roof system and perimeter edge sheet metal. Secure the existing wood nailers with appropriate fasteners. |
| 3.05 INSTALLATION - Insulation |
| A. General |
| 1. Install the specified insulation in accordance with manufacturer's latest printed instructions as shown on the Roof Plan Insulation Schedule. |
| 2. Protect the rigid roof insulation from the weather and standing moisture at all times. Lay up no more insulation than can be completely covered with roofing materials on the same day. At the end of each day's work, install temporary water cut-offs ... |
| 3. Install the specified insulation with staggered board joints between boards and layers of insulation. |
| 4. Stagger board joints by the maximum dimension possible. Neatly cut to fit edges and penetrations. Fill gaps larger than 1/4-inch with matching insulation. |
| 5. When adhering the insulation in foam adhesive, weigh down each board immediately until the adhesive sets up. |
| 6. Install tapered edge strips at perimeter edges as needed or in lieu of installing reinforced perimeter attachment strips if height difference will permit. Trim the tapered edge strip as required to provide a smooth transition. Mechanically fasten ... |
| 7. Insulation fasteners for Tectum roof deck areas: polymer fasteners. |
| B. Replacement 1.5-inch Insulation |
| 1. Install layer(s) of 1.5-inch thick isocyanurate insulation where the existing deteriorated insulation was removed. |
| a. Mechanically fasten the 1.5-inch thick isocyanurate insulation to the roof deck with one approved fastener and plate per two square feet (8 fasteners per 4-foot by 4-foot board). |
| C. Roof Sump Insulation - Areas A, D1, and F. |
| 1. Install 8-foot by 8-foot by 1/2-inch per foot tapered insulation over existing insulation to form roof sumps at the roof drains as shown on the Roof Plan. |
| a. Mechanically fasten the tapered insulation through the existing insulation to the roof deck with one approved fastener and plate per two square feet (8 fasteners per 4-foot by 4-foot board). |
| D. Roof Sump Insulation - Areas B, C, D, G, G1, and H. |
| 1. Install 8-foot by 8-foot, 1/4-inch per foot tapered insulation to form roof sumps at the roof drains as shown on the Roof Plan. |
| a. Mechanically fasten the tapered insulation to the roof deck with one approved fastener and plate per two square feet (8 fasteners per 4-foot by 4-foot board). |
| E. Insulation - Area E |
| 1. Install two layers of 2.6-inch thick insulation in the field of the roof. Stagger board joints between rows and layers of insulation. Properly secure the insulation: |
| a. Mechanically fasten the base layer of 2.6-inch thick insulation to the roof deck with one approved fastener per four square feet (8 fasteners per 4-foot by 8-foot board) of insulation board. Increase the number of fasteners by 50% at 8-foot wide pe... |
| b. Adhere the second layer of 2.6-inch thick insulation to the base layer of insulation with the approved foam adhesive. Maximum board size for adhered insulation is to be 4-foot by 4-foot, per manufacturer requirements. Bead spacing (perimeter): 6-in... |
| c. Adhere 1/2-inch thick gypsum roof board onto second layer of 2.6-inch isocyanurate insulation with the approved foam adhesive. Bead spacing: 6-inches on center. |
| F. 4-Way Tapered Insulation - Areas B, C, D, G, G1, and H |
| 1. Install a base layer of 2.0-inch thick insulation in the field of the roof. Stagger the board joints between rows and layers of insulation. Properly secure the insulation as follows: |
| a. Mechanically fasten the insulation with one approved fastener per two square feet (8 fasteners per 4-foot by 4-foot board) of insulation board. Increase the number of fasteners by 50% at 8-foot wide perimeter edges of the roof. Increase the number ... |
| 2. Install tapered insulation in accordance with the approved tapered insulation layout plan. The tapered insulation shall be sloped 1/8-inch per foot. The minimum starting thickness of the tapered insulation shall be 2-1/2-inches (2.0-inch base layer... |
| a. Adhere the tapered insulation with the approved foam adhesive. Bead spacing (Perimeter): 6-inches on center (8-feet perimeter). Bead spacing (Field): 12-inches on center. |
| G. Insulation - Areas A, D1 and F |
| 1. Replacement 1.5-inch Insulation: Install one or two layers of 1.5-inch thick isocyanurate insulation where the existing deteriorated insulation was removed. |
| a. Mechanically fasten the 1.5-inch thick isocyanurate insulation to the roof deck with one approved fastener and plate per two square feet (8 fasteners per 4-foot by 4-foot board). |
| 2. Install a layer of 2.0-inch thick insulation on the existing insulation in the field of the roof. Stagger the board joints between rows and layers of insulation. Properly secure the insulation as follows: |
| a. Mechanically fasten the insulation to the roof deck with one approved fastener and plate per four square feet (4 fasteners per 4-foot by 4-foot board). |
| 3. Install 1/2-inch thick isocyanurate insulation HD cover board on the properly installed layers of insulation. Adhere the cover board insulation to the layers of insulation as follows: |
| a. Adhere the cover board insulation with the approved foam adhesive. Bead spacing (Perimeter): 6-inches on center (8-feet perimeter). Bead spacing (Field): 12-inches on center. |
| H. Insulation - Roof Curbs and Walls |
| 1. Insulate the roof curbs of the mechanical units and walls that are currently insulated. Mechanically fasten the insulation to the roof curbs or walls. |
| I. Tapered Saddles and Tapered Edge Strip |
| 1. Install tapered insulation saddles at the locations shown on the Roof Plan and areas susceptible to ponding water conditions. Adhere the tapered insulation saddles with the approved foam adhesive. Bead spacing: 6-inches on center. |
| 2. At appropriate locations, install tapered edge strip to provide smooth transitions in the insulation system. Adhere the tapered edge strip with the approved foam adhesive. Bead spacing: 6-inches on center. |
| 3.06 INSTALLATION - ROOF SYSTEM |
| A. Membrane Installation |
| 1. Roofing system shall be installed following the latest printed installation instructions of the roofing manufacturer. |
| 2. Evenly apply adhesives at rate recommended by the roofing manufacturer to both the underside of the membrane and the insulation. Apply bonding adhesive uniformly, stopping short of the splice areas along the seams and base tie-ins. Allow the adhesi... |
| 3. Reposition the membrane, free of air pockets and wrinkles. Firmly press the sheet into place without stretching. Broom the surface to improve adhesion immediately after installation. |
| 4. Overlap edges and ends and seal by roofing manufacturer’s recommended dimensions. |
| 5. Shingle lap joints on sloped substrates in the direction of drainage. |
| 6. Complete the roof membrane seams with the roofing manufacturer’s seam tape wherever possible. Apply the seam tape in accordance with the roofing manufacturer’s instructions, including seam preparation work, proper seam tape alignment and exposure.... |
| 7. Secure the roof membrane at base tie-ins with the roofing manufacturer’s reinforced perimeter attachment strips. Adhere the reinforced perimeter attachment strips to the insulation with bonding adhesive. Fasten the attachment strips with the roof... |
| 8. Apply T-joint covers, stripping and appropriate sealant where specified by the roofing manufacturer on a daily basis. |
| B. Flashing Installation |
| 1. Perimeter edge flashing, wall flashing and roof curbs shall be installed in accordance with the roofing manufacturer’s flashing details using the longest pieces practicable. The installed flashing shall be fastened along the top edge 12-inches on-... |
| a. NOTE: ALL FLASHINGS SHALL BE COMPLETED DAILY AS THE PROJECT PROGRESSES WITH THE INSTALLATION OF THE NEW ROOF SYSTEM. |
| 2. Install a termination bar at the horizontal and vertical ends of the flashing where the flashing is exposed to the weather or as shown on the details. The termination bar shall be mechanically fastened (12-inches on-center, maximum) into slotted h... |
| 3. Seal roof drains per the roofing manufacturer’s required details. Install clamping rings and cast iron drain strainers immediately after placing the membrane. Drain strainers and clamping rings must be securely fastened to the roof drain bowl. |
| a. Replace broken roof drain strainers and plastic roof drain strainers with cast iron roof drain strainers. |
| C. Penetration Flashing |
| 1. Flash all penetrations passing through the membrane and flashing. Factory prefabricated pipe flashing shall be used to flash all penetrations where installation is possible. Where factory prefabricated pipe flashing cannot be installed, field fab... |
| 2. Install penetration pocket flashings at miscellaneous roof penetrations which cannot be flashed with a prefabricated boot or flange, sleeve and umbrella flashing. Use penetration pocket flashings approved by the roofing manufacturer. Fill the penet... |
| D. Sheet Metal Installation |
| 1. See Section 07 6200 Sheet Metal Flashing and Trim. |
| E. Miscellaneous |
| 1. Return the existing mechanical units to their original positions and secure to the existing roof curb with EPDM-gasketed screws, a minimum of two on each side of the roof curb. |
| 2. Reinstall the existing Pate curb covers onto the existing roof curb with EPDM-gasketed screws, a minimum of one fastener on each side of the roof curb. |
| 3. Install rubber walkpads at the mechanical unit access panels, doors, ladders, downspouts, and beneath equipment on roof surface. Install additional rubber walkpads at the designated locations shown on the Roof Plan. The walkpads shall be adhered to... |
| 4. Return the existing supply lines to their original positions. Install new premanufactured pipe supports spaced 10-feet on center. Each pipe support must be loosely secured to the supply line and set on rubber walkpads if required by the roofing ma... |
| 3.07 Precautions |
| A. Do not use oil base or plastic roof cement in conjunction with EPDM materials. |
| B. Waste products (petroleum, grease, oil and solvents - vegetable or mineral oil and animal fat - direct contact with steam venting) should not be allowed to come in contact with the EPDM roof membrane system. |
| C. Splicing and bonding surface must be dry. |
| D. Daily Seal: Care should be exercised to ensure that water does not flow beneath any completed sections of roof by temporarily sealing the loose edge of the membrane when the weather is threatening. The roofing manufacturer's requirements should b... |
| E. An open flame may not be used to dry the roof membrane or to heat the flashing materials. |
| 3.08 FIELD QUALITY CONTROL |
| A. The Contractor shall coordinate inspection services during roof application. Prior to final payment, and as a condition thereof, the Contractor shall obtain final approval from the Roofing Consultant indicating proper compliance with the Contract D... |
| B. The Roofing Consultant shall review and approve all shop drawing submittals. |
| C. Notify Roofing Consultant whenever roofing work is to be done, in sufficient time to arrange inspections. Provide safe access to roof for monitoring. |
| D. Furnish Roofing Consultant with all pertinent job information prior to beginning work in accordance with Roofing Consultant's directions. |
| E. The Roofing Consultant may perform any testing required to verify the integrity of the work and confirm that work is in conformance with roofing manufacturer's recommendations. |
| 3.09 CLEANING |
This is the start of the file's text. The full file is on GovTribe.
File details come from the government source that posted it. Updated .