9-A02 Dewey ROOF.pdf

SCOPE OF SERVICES

RFP TITLE: Dewey Roof and stone repair:

RFP #067-2025

Scope of Services:

St. Louis Public Schools is seeking a qualified contractor to repair and replace all damaged roof tile and stonework to the school affected by May 16th, 2025, Tornado. It is our goal to get a complete warranty for all which includes:

Replace broken and missing clay tile throughout the Dewey roof.

1.1 SUMMARY for Clay tile installation

A. Section includes:

1. Supply all labor, transportation, material apparatus, tools, and permits necessary for removal and replacement of existing roofing system.

Contractors shall verify roof construction and square feet. Refer to roof plan drawing for roof area locations.

2. Tile roofing

3. Underlayment and flashing

4. Fasteners and accessories

5. Wood deck repairs as needed throughout.

6. Install new gutters and downspouts to match existing metal thickness, profile and color. Kynar coated metal will be accepted instead of copper/stainless. The district will keep all copper materials.

1.2 References

A. ASTM C1167 – Standard Specification for Clay Roof Tiles B. ICC-ES ESR reports (if applicable) C. International Building Code (IBC), current edition

1.3 Submittals

A. Product data for clay tiles, fasteners, underlayment B. Samples for color/texture approval C. Manufacturer’s installation instructions D. Warranty documentation

1.4 Quality Assurance

A. Installer must have a minimum of 5 years of experience with clay tile roofing B. Mock-up may be required for approval prior to full installation

Part 2 – Products

1.5 Clay Roof Tiles

A. Material: Kiln-fired clay B. Type: Mission / Spanish “S” / Flat profile: Owner to choose C. Color: Selected by owner D. Weight: Approx. 800–1,200 lbs/square depending on tile profile E. Manufacturer: Ludowici, MCA, Santa Fe, Boral

1.6 Underlayment

A. Two layers ASTM D226 Type II (or) one layer of synthetic underlayment approved for tile applications B. Ice and water shield at eaves if required by local code

1.7 Fasteners and Accessories

A. Nails: Hot dip galvanized or stainless steel

B. Foam adhesives as approved by tile manufacturer (optional in high-wind zones) C. Eave closures, hip/ridge tiles, vents, and bird stop as required

Part 3 – Execution

1.8 Examination

A. Confirm the roof deck is dry, clean, and properly sloped B. Verify structural support for tile weight

1.9 Installation

A. Install underlayment in accordance with the code and manufacturer’s recommendations B. Install clay tiles by manufacturer’s instructions using approved fastening method C. Provide appropriate expansion, ventilation, and drainage D. Flashing installed per NRCA and local code E. Hip and ridge tiles to be set in mortar or mechanically fastened

1.10 Cleaning and Protection

A. Remove debris and broken tiles B. Protect roof from foot traffic and other damage C. Final inspection and punch list completion

1.11 Warranty

A. Manufacturer’s limited warranty: 50 years or per product line B. Contractor workmanship warranty: Minimum 2 years

SECTION 075216.11 - SBS MODIFIED BITUMINOUS MEMBRANE ROOFING,

HOTAPPLIED

GENERAL

2.1 SUMMARY for a Modified Bitumen roof system

The Work consists of the following:

Supply all labor, transportation, material, apparatus, tools, and permits necessary for removal and replacement of existing roof system. Contractors shall verify roof construction and square feet. Refer to roof plan drawing for roof area locations.

2.2 Roof removal

Complete removal of existing roofing system including but not limited to membrane, flashings, metal flashings, and insulation down to the underlying roof decking.Sweep roof deck clean and prime entire concrete with manufacturer’s recommended primer prior to roof insulation application.

2.3 Roof installation

Install two layers of 2.6-inch polyisocyanurate insulation to the primed concrete deck. Walk boards into adhesive immediately after installation to achieve solid contact. Adhere insulation if solid mopping of Type IV hot asphalt. Install ½ inch layer of wood fiber insulation in solid mopping of Type IV hot asphalt. Walk boards into adhesive immediately after installation to achieve solid contact.

Install two (2) ply cold applied modified bitumen roof system with white granule surface. Install one (1) heavy duty base sheet adhered in solid mopping of Type IV hot asphalt. Plies must be broomed or rolled during installation to ensure proper contact with the hot asphalt. Install POWERply Standard Plus FR surfacing sheet in solid mopping of Type IV hot Asphalt.

Plies must be broomed or rolled during installation to ensure proper contact with the hot asphalt. Install 2-ply modified bitumen base flashings as specified in general flashing requirements. Install new lead flashings at plumbing stack locations.

2.4 Gutters and Flashings

Install all sheet metal details per specifications and SMACNA and manufacturer’s requirements and standards. Install new kynar coated metal flashings at all metal flashing locations. Install new metal counterflashing/coping, slip metal counterflashing detail at non-removable unit locations, miscellaneous metal flashings and related accessories.

Install new 6-inch gutters and round downspouts at all gutter locations where roofs are being replaced. Kynar coated metal will be acceptable. Owner to select color.

A) DEFINITIONS

Roofing Terminology: Refer to ASTM D1079 "Standard Terminology Relating to Roofing and Waterproofing" and applicable edition of NRCA's "The NRCA Roofing Manual: Membrane Roof Systems" and NRCA’s Glossary for definition of terms related to roofing work in this Section.

Hot Roofing Asphalt: Roofing asphalt heated to its Equi viscous temperature, the temperature at which its viscosity is 125 centipoises for mop-applied roofing asphalt and 75 centipoise for mechanical spreader-applied roofing asphalt, within a range of plus or minus 25 deg. F (14 deg. measured at the mop cart or mechanical spreader immediately before application).

B) PREINSTALLATION MEETINGS

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

Review drawings and specifications.

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

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

Examine substrate conditions and finishes for compliance with requirements, including flatness and fastening.

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

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

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

Review temporary protection requirements for the roofing system during and after installation.

Review roof observation and repair procedures after roofing installation.

C) ACTION SUBMITTALS

Product Data: For each type of product indicated.

Sustainable Design Submittals:

Product Test Reports for Solar Reflectance: For roof materials, indicating that roof materials comply with Solar Reflectance Index requirement.

Product Data and Laboratory Test Reports: For adhesives and sealants, indicating compliance with requirements for low-VOC/low-emitting materials.

Shop Drawings: For roofing system. Include plans, elevations, sections, details, and attachments to other work. Provide roof plan showing orientation and types of roof deck, orientation of membrane roofing and fastening spacings and patterns for mechanically fastened components.

Base flashings and built-up terminations.

Tapered insulation, including slopes.

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

Samples for Verification: For the following products:

Sheet roofing materials, of color specified for exposed material.

D) INFORMATIONAL SUBMITTALS

Qualification Data: For Installer, Manufacturer, and Roofing Inspector.

Include letter from Manufacturer written for this Project indicating approval of Installer.

2.5 Manufacturer Certificates:

Submit evidence of compliance with requirements specified in "Performance Requirements" Article.

Include: External fire resistance submittal.

Product Compatibility: Indicate manufacturer has verified compatibility of roofing system components, including but not limited to: Roofing membrane, flashing sheets, adhesives, and sealants.

2.6 Warranties:

Unexecuted sample copies of warranties.

Field Quality Control Reports: Reports of Roofing Inspector. Include weather conditions, description of work performed, tests performed, defective work observed, and Contractor's corrective actions taken to correct defective work.

Submit reports within 48 hours after installation.

Manufacturer's Instructions: Submit copy of manufacturer's written installation instructions for specified roofing system.

2.7 CLOSEOUT SUBMITTALS

Maintenance Data: To include in maintenance manuals.

Warranties: Executed copies of warranties.

A) QUALITY ASSURANCE

Installer Qualifications: An employer of workers trained and certified by manufacturer, including a full-time on-site supervisor with a minimum of five years' experience installing products comparable to those specified, able to communicate verbally with Contractor, and employees, and qualified by the roofing system manufacturer to install manufacturer's product and furnish warranty of type specified.

Manufacturer Qualifications: Approved manufacturer with roofing systems comparable to those specified for this Project, with a minimum of five years' experience in manufacture of comparable products in successful use in similar applications, and able to furnish warranty with provisions matching specified requirements. Approval of Comparable Products: Submit the following in accordance with project substitution requirements, within time allowed for substitution review:

2.8 Stone repair

Inspect all stone caps on the brick gable sections of the roof making sure stones are structurally sound.

Install a new stone cap on the east chimney located on the front of the building. Replace with like material.