02 -Attachment A - Project Manual for Hail Damage Roof Repairs at 8 schools.pdf

CAVE CONSULTING GROUP

Incorporated

ROOFING & WATERPROOFING

3496 West 125th Circle . BROOMFIELD, COLORADO 80020 . (303) 410-8588 www.caveconsultinggroup.com

PROJECT MANUAL

REROOFING PROJECT FOR

BOULDER VALLEY SCHOOL

DISTRICT

HAIL DAMAGE 2024 ROOF REPAIRS

September 8, 2025

SCHEDULE OF EVENTS

Documents to Bidders thru BidNet October 9, 2025

Mandatory Pre-Bid October 16, 2025 @ 11:00 A.M.

Angevine Middle School (Start) & Centaurus High School

October 23, 2025 @ 11:00 A.M.

Broomfield Heights Middle School (Start) & Broomfield High School

October 27, 2025 @ 11:00 A.M.

Fireside Elementary School (Start) & Sanchez Elementary School

October 29, 2025 @ 1:00 P.M.

University Hill Elementary School (Start) & University Hill Primary School

Question Due November 10, 2025 @ 10:00 A.M.

Email to Derrell.Walton@BVSD.org

Answers Returned thru BidNet November 17, 2025 @ 5:00 P.M.

Project Bids via eMail December 3, 2025 @ 10:00 A.M. &

Email to Derrell.Walton@BVSD.org

Construction Window May 25, 2026 – July 31, 2026

PLEASE NOTE: BASE BID IS FOR COMPLETE PACKAGE AT ALL LOCATIONS.

PROJECT LOCATIONS

Angevine Middle School 1150 W. South Boulder Road Lafayette, CO 80026

Broomfield Heights Middle School 1555 Daphne Street Broomfield, CO 80020

Broomfield High School 1 Eagle Way Broomfield, CO 80304

Centaurus High School 10300 W South Boulder Road Lafayette, CO 80026

Fireside Elementary School 845 W. Dahlia Street Louisville, CO 80027

Sanchez Elementary School 655 Sir Galahad Drive Lafayette, CO 80026

University Hills Elementary School 956 16th Street Boulder, CO 80302

University Hills Primary School 889 17th Street Boulder, CO 80302

SUMMARY OF WORK

SECTION 01 01 01 – ROOFING GENERAL REQUIREMENTS

PART 1 GENERAL

1.1 CONTRACT DESCRIPTION

A. The work includes the removal of the existing roofing membrane. On the gyms keep the ballast, remove the existing membrane and replace with white EPDM.

1.2 RELATED SECTIONS

A. SECTION 01 01 01

B. SECTION 01 03 00

C. SECTION 02 07 20

D. SECTION 06 10 00

E. SECTION 07 50 00

F. SECTION 07 51 13

G. SECTION 07 53 23

H. SECTION 07 62 00

1.3 OWNER SUPPLIED PRODUCTS

A. If available, the Owner will furnish electrical power to the contractor. If no power is available then the contractor will need to provide their own generator.

B. The contractor may use outside water spigots but must secure an appropriate key to use to turn the water on and off. The contractor will be responsible for damage to spigots and assuring the spigots are turned off.

1.4 CONTRACTOR USE OF SITE

A. The building and grounds will be used during the reroofing period. The contractor will coordinate their activities to minimize conflicts or problems with the tenants.

All materials stored at the site must be stored in covered vans and locked or outside equipment must be fenced (chain link fencing) and locked.

B. Storage and parking shall be in a designated area only. This will be discussed at the pre-construction meeting.

C. Contractor will be required to test all drains prior to starting work, notify the Consultant if any drains are plugged.

D. Contractor will need to verify and map out any conduit, or other obstructions that may exist that are tight to the bottom side of the structural deck throughout the building.

E. If roof leaks occur the owner may choose to have the roofing contractor make the appropriate repairs or if the roofing contractor does not respond within 12 hours the owner may hire another roofing contractor to make the necessary repairs and that cost will be deducted from the roofing contractors contract price.

F. Set up areas will be decided once the successful bidder is known. In any event, set up MAY NOT OCCUR AT THE SCHOOL ENTRANCE.

G. All set up areas must be fully protected including but not limited to full white EPDM covering and plywood over all areas.

1.5 MATERIAL PRE-PURCHASE

A. The pre-purchase of material is allowed provided the following requirements are met:

a. The material must be stored in a warehouse.

b. The material must be roped off and separated from any other project and labeled with the project information.

c. The contractor must provide the Owner with a certificate of insurance for the material.

d. Once all of the above has been completed the contractor must contact the

Consultant so they can confirm that all of the requirements have been met. The Consultant will make one visit to confirm the requirements are met, if they are not, the contractor will not get reimbursed for the stored material.

1.6 REGULATORY REQUIREMENTS

A. It is the responsibility of the Contractor to call in and schedule all necessary inspections and be on site when the inspections occur.

B. Permitting will be through the State of Colorado and will be the responsibility of the Contractor to provide all necessary documents and materials for the application and approval of the state permit.

C. The contract between the Owner and the Contractor will be provided by the

Contractor on AIA Document A101-2017 or latest edition.

D. Use AIA Document A201-2017 for the General Conditions or latest edition.

E. Provide a Bid Bond (5%). Use AIA Document A310-2010.

F. Provide a Performance and Payment Bond. Use AIA Document A312-2010.

G. For Payment Applications use AIA Document G702-1992 and G703-1992

H. The Contractor is to comply with all OSHA requirements.

I. Conform to all applicable electrical and mechanical codes to disconnect and/or raise units for new work. It is the responsibility of the contractor to raise mechanical curbs and equipment, ductwork, gas line, conduit, etc so that at the project completion, the aforementioned will be a minimum of 8” above the finished roof (AFR). All work must be completed by licensed electricians and/or mechanical contractors that are acceptable to the Owner. A copy of the licenses must be sent to the Consultant prior to any work being done.

J. The Contractor is to coordinate the work to keep disruption to the property to a minimum.

K. The Contractor is required to submit company insurance limits with their bid.

Name the Owner as additionally insured.

L. The Contractor must use foremen and labor for every aspect of the roofing process outlined herein that are directly employed by the Contractor submitting the bid. The use of roofing subcontractors requires the approval of the Owner and Cave Consulting Group, prior to bid time.

M. Contractor to comply with State and Local requirements for placement of propane tanks in relation to buildings. If requirements aren’t provided, then propane tanks must be a minimum of 40’ from and structure and/or be removed from the site every day.

N. The contractor is required to verify with the Owner the existence of asbestos containing material prior to work commencing. If asbestos containing material exists, then the contractor shall take care to not disturb such material. If asbestos containing material is disturbed, then it is the responsibility of the contractor coordinate the cleanup by a qualified asbestos contractor.

1.7 NOISE

A. Comply with local city government noise ordinances.

1.8 TIME OF COMPLETION

A. See Front End documents for pertinent dates.

B. The Consultant will make a final inspection and will make one site visit to inspect that all final items were completed. If the Consultant has to make more than one site inspection after the final, the roofing contractor will be charged a trip cost of $1,000 for each subsequent visit required. The ultimate amount will be processed as a deductive change order from the project’s contract amount.

1.9 SUB-CONTRACTORS

A. The Contractor must use foremen and labor for every aspect of the roofing process outlined herein that are directly employed by the Contractor submitting the bid. The use of roofing subcontractors requires the approval of the Cave Consulting Group prior to bid time.

B. Each bidder will include with its bid a list of sub-contractors, material suppliers, and material manufacturer. These must be approved by the Consultant.

1.10 ROOFING CREW FOREMAN

A. The Consultant will have the sole choice in who the foreman is on the project.

B. The same roofing crew foreman and roofing crew must be maintained throughout the duration of the project. Once the project begins the crew must stay on site until the project is complete unless there is written approval from the Consultant for the crew to leave the project. If the crew is removed without approval $500 per day will be deducted from the Contract Amount.

1.11 LIQUIDATED DAMAGES

A. Liquidated Damages will be charged $500 per day past Substantial Completion and $1,000 per day past Final Completion. Liquidated Damages will be charged everyday past Substantial and Final Completion dates and bonding companies will be notified. Substantial Completion is reached when all roofing is complete (and kettle moved off site, if applicable) and sheet metal is complete.

1.12 PRE-CONSTRUCTION MEETING

A. The successful roofing contractor and all sub-contractors will be required to attend a pre-construction meeting, time and date to be set by the Consultant. At the meeting the roofing contractor will be required to have the following:

a. Schedule for the work.

b. Staging area plan.

c. Submittals of all products.

d. Present a copy of the guarantee application confirmation from the roofing material manufacturer.

e. MSDS sheets.

f. Name and phone numbers of the project manager, field superintendent and the foreman.

g. Other required documentation in the contract documents.

1.14 CONTRACT CLOSEOUT

A. The Contractor has thirty (30) days from the date of substantial completion to provide all contract closeout documents to the Consultant. Closeout Documents include but are not limited to:

a. Completion of all Punch List Items.

b. Manufacturer Warranty.

c. Workmanship Warranty.

d. Government Inspection Approval Certificates.

e. Final Contractor Pay Requests.

f. Owner Required Documents.

1.15 SUBSTITUTIONS

A. Substitutions will be allowed in some circumstances. The Contractor shall submit the substitution request in writing to the Consultant prior to the bid date.

1.16 SUBMITTALS

A. Email one submittal package to caveconsulting@comcast.net that conforms to every aspect of the drawings and specifications. The submittal package shall be in PDF format and the file size shall not exceed 10mg.

1.17 WARRANTIES

A. The Roofing Contractor is required to furnish a three-year warranty which must be issued on a standard MRCA document. Provide a sample warranty in the submittal package.

B. Furnish a 20 year no dollar limit warranty from the manufacturer. Provide a sample warranty in the submittal package.

PART 2 PRODUCTS - NOT USED

PART 3 EXECUTION - NOT USED

END OF SECTION 01 01 01

SECTION 06 10 00 – ROUGH CARPENTRY FOR ROOFING

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Plywood for walls and shims

B. Roof densdeck prime board for walls

C. Wood blocking

D. Fasteners

A. SECTION 01 01 01

B. SECTION 01 03 00

C. SECTION 02 07 20

D. SECTION 06 10 00

E. SECTION 07 50 00

F. SECTION 07 51 13

1.3 REFERENCES

A. ASTM - American Society for Testing and Materials

B. APA - American Plywood Association

1.4 SUBMITTALS

A. Submit to the Consultant information about plywood, wood blocking and fasteners before construction begins.

PART 2 PRODUCTS

2.1 MATERIALS

A. Plywood: ½” thick APA C-D, Exposure Durability 1, unsanded. Non-combustible.

B. Wood Blocking: Hem-Fir No. 2 non-combustible or approved equal for all wood.

C. Wood Blocking at hot pipe: Use non-combustible wood.

D. Roof Gypsum Board: ½” Dens Deck Prime by Georgia-Pacific.

2.2 ACCESSORIES

A. Fasteners

a. Nails: Hot-dipped galvanized ring shank by Maze, Georgia-Pacific, or approved equal. Nail must be long enough to penetrate into the receiving material 1 1/2 inches.

b. Anchors: For attaching plywood and/or DensDeck (use insulation plates) to masonry walls use Fluted Concrete Nails by TRUFAST. 2 inches long, longer if required, submit sample to the Consultant for approval.

c. If it is determined by the Consultant that the above fastener won’t hold then Tapcon countersinking screws by Buildex may be used, ¼” x 1 ¾”, or longer if necessary.

d. Screws: For attaching wood blocking to metal deck use Hexcel Roofgrip Spex Plating fasteners, 3 inches long.

PART 3 EXECUTION

3.1 FRAMING

A. Set all new plywood/DensDeck Prime plumb, level and tight to existing surfaces.

Set "C" side of plywood to receive new roofing materials. See Installation Notes on the drawing for fastener spacings. Install material only in area to be reroofed that same day. Use insulation plates when using DensDeck.

B. Install wood blocking straight, true and tight to the existing surfaces. Warped, cupped of damaged wood blocking will be rejected. Protect wood blocking after it is installed.

3.2 STORAGE

A. Keep all materials dry at all times by storing in covered vans. Do not store materials on the roof except those used the same day.

B. Keep all materials dry at all times by on roof. One week’s worth of material can be stored on the roof at a time.

C. Keep all materials dry after they are installed as directed by the Consultant.

Remove materials that become wet or damaged.

END OF SECTION 06 10 00

SECTION 07 05 00 – ROOF COATINGS

1.01 SECTION INCLUDES

A. This specification is intended to outline the requirements for application of the acrylic coating system, in conjunction with the appropriate product technical data sheets, over metal roof substrates in acceptable condition.

1.02 RELATED SECTIONS

A. Section 06100: Rough Carpentry: Roof blocking installation and requirements.

B. Section 07620: Sheet Metal Flashing and Trim: Metal flashing and counter flashing installation and requirements.

C. Section 15430: Plumbing Specialties: Roof drains, scuppers, gutters and downspout installation and requirements.

1.03 REFERENCES

A. Factory Mutual (FM Global) – Approval Guide.

B. Factory Mutual Standard 4470 – Approval Standard for Class 1 Roof Covers.

C. Underwriters Laboratories (UL) - Roofing Systems and Materials Guide

(TGFU R1306).

D. ASTM International (ASTM) – Annual Book of ASTM Standards.

E. ASTM D 1079 – Standard Terminology Relating to Roofing, Waterproofing, and Bituminous Materials.

F. ASTM D 1653 - Standard Test Methods for Water Vapor Transmission of

Organic Coating Films.

G. ASTM D 4263 - Standard Test Method for Indicating Moisture in Concrete by the Plastic Sheet Method.

H. ASTM D 4798 / D4798M – 1- Standard Practice for Accelerated Weathering

Test Conditions and Procedures for Bituminous Materials (Xenon-Arc

Method).

I. ASTM D 6083 - Standard Specification for Liquid Applied Acrylic Coating

Used in Roofing

J. ASTM E 96 - Standard Test Methods for Water Vapor Transmission of

Materials.

K. ASTM E 108 - Standard Test Methods for Fire Tests of Roof Coverings.

L. ASTM G 26 - Practice for Operating Light-Exposure Apparatus (Xenon-Arc

Type) With and Without Water for Exposure of Nonmetallic Materials.

M. ASTM G 53 - Practice for Operating Light- and Water-Exposure Apparatus

(Fluorescent UV-Condensation Type) for Exposure of Nonmetallic Materials.

N. Sheet Metal and Air Conditioning Contractors National Association, 1nc.

(SMACNA) - Architectural Sheet Metal Manual.

O. National Roofing Contractors Association (NRCA).

P. American Society of Civil Engineers (ASCE).

Q. ASCE 7 - Minimum Design Loads for Buildings and Other Structures.

1.04 DEFINITIONS

A. Roofing Terminology: Refer to ASTM D1079 and the glossary of the National

Roofing Contractors Association (NRCA) Roofing and Waterproofing Manual for definitions of roofing terms related to this section.

1.05 SYSTEM DESCRIPTION

A. The roofing work includes roofing, flashing and reinforcing of joints and junctions, and roof accessories integrally related to roof installation.

B. Final determination of the fitness of the system, or its components, for any given roof may not be made by any representative of the manufacturer

C. Provide an installed roofing membrane and base flashing system that does not permit the passage of water.

D. The manufacturer shall provide all primary roofing materials that are physically and chemically compatible when installed in accordance with manufacturers current application requirements.

1.06 SUBMITTALS

A. Submit under provisions of Section 01300.

B. Product Data:

1. Provide product data sheets for each type of product indicated in this section.

C. Shop Drawings:

1. Provide manufacturers standard details and approved shop drawings for the system specified.

1.07 QUALITY ASSURANCE

A. Manufacturer Qualifications: Manufacturer shall provide a roofing system that meets or exceeds the criteria listed in this section.

B. Installer Minimum Qualifications:

1. Installer shall be certified to install this roof system in accordance with the manufacturer’s requirements.

C. Source Limitations: Components listed shall be provided by a single manufacturer or approved by the primary roofing manufacturer.

1.08 PRE-INSTALLATION CONFERENCE

A. Prior to scheduled commencement of the roofing installation and associated work, conduct a meeting at the project site with the installer, architect, owner, manufacturer representative and any other persons directly involved with the performance of the work. The installer shall record conference discussions to include decisions, agreements, and open issues and furnish copies of recorded discussions to each attending party. The primary purpose of the meeting is to review foreseeable methods and procedures related to roofing work.

1. Tour representative areas of roofing substrates to inspect and discuss conditions of substrate, penetrations and other preparatory work to be performed.

2. Review manufacturer requirements (manufacturer specifications, detail drawings and the Contract Documents).

3. Review required submittals, both completed and in progress.

4. Review and finalize the construction schedule related to roofing work, and verify availability of materials, installer's personnel, equipment and facilities needed to consistently make progress and avoid delays.

5. Review required inspection(s), testing, and certifying, and material usage accounting procedures. Review forecasted weather conditions.

6. Establish procedures for coping with unfavorable conditions, including the possibility of temporary roofing work.

7. Perform a mock up of the coating system.

1.09 REGULATORY REQUIREMENTS

A. Work shall be performed in a safe, professional manner, conforming to federal, state and local codes.

B. UL Listing: Provide manufacturer’s System and component materials which have been evaluated by Underwriters Laboratories for flame-spread, and are listed in the "Underwriters Laboratory Roofing Materials and Systems

Directory" for Class A construction over existing metal or other non-combustible roofing (Flame-spread shall pass ASTM E-108 and/or UL 790).

Provide roof covering materials bearing UL approval marking on the container. This indicates that the material has been subjected to UL's examination, test procedures and follow-up inspection service.

1.10 DELIVERY, STORAGE & HANDLING

A. Store and handle materials in a manner that will ensure there is no possibility of contamination.

B. Store in a dry, well ventilated, weather tight location at temperatures between

50°F (10°C) and 90°F (32°C) until the products are ready to be applied (keep from freezing). Do not stack material pallets more than two (2) high.

C. Do not subject existing roof to unnecessary loading of stockpiled materials.

D. Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.

1.11 PROJECT CONDITIONS

A. Weather:

1. Proceed with roofing only when existing and forecasted weather conditions permit.

2. Application surface temperature shall be 50°F (10°C) and rising. Care should be taken when coating surfaces above 120°F. Contact the manufacturer if you have questions regarding these limits.

B. Proceed with roofing work only when existing and forecasted weather conditions will permit work to be performed in accordance with manufacturer recommendations and guarantee requirements as follows:

1. Do not begin work if precipitation is expected within twenty-four hours of application, or if temperatures are expected to fall below 50°F (10°C) during the duration of the job.

a. FlexSeal™ Sealant may be used in temperatures lower than 42°F

(6°C).

2. No moisture may be present when applying manufacturer products. Taking into consideration the UV curing properties of the manufacturer’s products allow for sufficient daylight hours necessary for curing of materials.

1.12 WARRANTY

A. NDL Roof Guarantee: Manufacturers standard form, without monetary limitation, in which the manufacturer agrees to repair leaks through the manufacturer’s products on the roof caused by manufacturing defects, natural deterioration of, or workmanship in applying, the manufacturer’s roofing system.

1. Warranty Duration:

a. Twenty (20) Years Labor and Material

2.01 MANUFACTURER

A. Acceptable Manufacturers:

1. GAF Commercial

2. Other Manufacturer

3. Other Manufacturer

4. Other Manufacturer

2.02 COATINGS

(Note: Drying Times: Listed drying times for various products are directly affected by environmental conditions and thickness of application. Additional drying time must be allowed when experiencing high relative humidity, low temperatures and/or very thick product application to prevent improper curing and/or product “wash-off”.)

A. Acrylic Base Coat: A water based, acrylic elastomeric base coat to improve the adhesion of Acrylic Top Coat and provide bleed blocking on asphaltic roofs or residue.

1. Application Rate: 1.0 to 1.5 gal per 100 ft2 (4.07 to 6.11 L/ 10 m2) per coat.

2. Application Method: Airless sprayer, brush, or roller.

3. Application Temperature (air, surface): 50°F (10°C) and rising.

B. Premium Acrylic Hydrostop® Base Coat: A high solids elastomeric acrylic base coat used to enhance adhesion of Premium Acrylic HydroStop® Top

Coat.

1. Application Rate: 1.0 to 1.5 gal per 100 ft2 (4.07 to 6.11 L/ 10 m2) per coat.

C. Premium Acrylic HydroStop® Top Coat: A professional grade, water based, acrylic elastomeric top coat that forms a monolithic coating to help provide protection against damage from the exposure to UV and weather elements.

1. Application Rate: 1.0 to 1.5 gal per 100 ft2 (4.07 to 6.11 L/ 10 m2) per coat.

2.03 FLASHINGS AND ACCESSORIES

A. Premium Brush-Grade Acrylic Flashing: water based, high solids elastomeric sealant that provides increased tensile strength and elongation as compared with Brush-Grade Acrylic Flashing. Its thick, buttery consistency allows it to be easily worked into gaps and heavily alligatored areas. Also used for encapsulating Premium Fabric.

1. Application Rate: 2.0 gal per 200 linear feet with a 6 inch width (7.6L per 61 linear meters with a 152 mm width), 2 coats typically required.

2. Application Method: Trowel or brush.

3. Application Temperature (air, surface): minimum 50°F (10°C).

4. Dry Time: 1-4 hours depending on application thickness

5. Clean-up: Water before curing.

B. Premium Fabric: tough, non-woven, stitch-bonded, polyester fabric designed for use as a reinforcing material in coatings or BarrierGuard systems. Available in 336 ft. rolls and varying widths.

1. Length: 300 ft. (91 m). Widths available: 4” (102 mm), 6” (152 mm), 8” (203 mm), 12” (305 mm), 16” (406 mm), 20” (508 mm), 24” (610 mm).

2. Length: 336 ft. (102 m). Width available: 40” (1.02 m).

C. Seam Tape: A coatable fabric surface backed with a polymer modified butyl adhesive. It is designed for application to a wide range of substrates where additional strength is required over loose or open seams and membrane tears.

1. Temperature Limits for Service 32°F to 110°F (0°C to 43°C)

2. Bond Time: Initial bond is immediate; full bond requires approximately 24 hours.

2.04 PRIMERS AND SEALANTS

A. Metal Roof Primer: A single component, highly durable exterior acrylic latex primer. It helps provide protection against the damaging effects of corrosion over properly prepared ferrous metal substrates. It also helps provide protection against the damaging effects of alkali exposure over concrete and masonry.

1. Application Rate: 0.33 – 0.66 gal per 100 ft2 (1.34 – 2.69 L/ 10m2) depending on substrate, surface and porosity.

2. Application Method: Brush, roller or sprayer.

3. Dry Time: 75°F (24°C), 50% RH: 20-30 minutes

2.05 CLEANER

A. Cleaning Concentrate: A highly effective cleaning agent that, when combined with water, penetrates the existing coating or substrate and allows contaminants to be flushed from the surface. It is non-toxic and leaves no pollutants or contaminating by-products to damage the environment. Used for the proper cleaning of existing elastomeric coating on roofs, metal surfaces, concrete and masonry substrates, as well as uncoated roof, deck and wall surfaces.

1. Application Rate: 0.5-0.7 gallon per 100 ft2. (2.04-2.9 L/10m2).

2. Application Method: Low pressure sprayer or brush.

2.06 EQUIPMENT

A. Airless Sprayer and Accessories: As recommended by manufacturer

3.01 SUBSTRATE CONDITIONS

A. Installer shall verify adhesion. Questionable substrates shall be directed to the manufacturer for resolution.

B. Follow Manufacturer’s Substrate Preparation Guidelines

3.02 PREPARATION OF SUBSTRATE

A. Preparation of the Roof substrate is the responsibility of the Installer. Installer shall address and correct all of the conditions listed in this section. Examine substrates to receive new roofing. Do not proceed with installation of the

Acrylic coating until unsatisfactory conditions have been corrected in a manner acceptable to the manufacturer.

B. Installation of sheet metal crickets: Sheet metal crickets shall be installed according to manufacturer's specifications (minimum 26 gauge (0.455 mm) metal - heavier gauge required for larger crickets) on the high side of all curb units. Vertical ribs shall be cut a minimum of 2 inches (51 mm) from the cricket to allow both the cricket flanges to mount flush to the metal panel and facilitate water drainage. Cut vertical ribs shall then be treated in the same fashion as a void larger than a 1/4 inch (6 mm). New crickets shall be

"sealed" by placing a continuous bead of FlexSeal™ Sealant under the flanges before they are mechanically attached to the curb unit and metal roof panel. Then, the cricket flanges shall be stitch-screwed to the curb unit and metal roof panel while the FlexSeal™ Sealant is still wet using fasteners.

This procedure shall apply to installation of all new crickets and curbs.

C. Treatment of Ponding Water Areas: Installer shall make every effort to mechanically eliminate all ponding water areas on the roof prior to application of manufacturer’s products. Ponding water is defined as water which does not properly drain and remains on the roof surface for more than 48 hours after precipitation stops.

D. Repair of Dented / Damaged Panels: Installer shall repair dented and/or damaged metal roof panels. Dents shall be mechanically removed to the maximum extent possible. If ribs are broken, Installer shall cover the broken rib area with a sheet metal cap. Sheet metal rib caps shall be sealed to the roof by applying Premium Brush-Grade Acrylic Flashing over the entire broken rib area to be capped prior to attaching the cap with fasteners. Then, Premium Brush-Grade Acrylic Flashing shall be used to seal all the newly created rib cap seams and fasteners. Roof panels that are severely damaged shall be removed and replaced prior to application of the manufacturer’s products.

E. Re-tightening and Replacement of Fasteners: All fasteners shall be re-tightened, secured or replaced, as necessary. All stripped fasteners shall be replaced with larger diameter fasteners, and the area re-secured by adding a new fastener next to the one that was stripped. All missing fasteners shall be replaced. In evaluating a roofing substrate for the application of the manufacturer’s System, it is important to note the manner in which the roof is fastened. The fastening pattern may require modification to facilitate the proper installation of the system.

F. Thorough Cleaning / Removal of Existing Paints and Coatings: Metal substrate shall be power washed with water. A minimum working pressure of

3,000 psi (20 MPa) shall be used to remove all delaminating paint and coatings dirt, dust, and waste products (oil, oil-based roof cements, solvents, grease, animal fats, etc.). A Roto-spray tip is required to expedite metal panel cleaning. All existing silicone-based sealants shall be completely removed from roof substrate prior to application of the manufacturer ‘s products. In some cases, a sand injection system may be required during the pressure washing to obtain proper adhesion for the manufacturer’s products.

When encountering roof substrates that have living organisms such as algae, mold or fungus, a bleach solution shall be used to kill and remove these organisms during the roof cleaning.

G. Treatment of Residual Asphalt: Installer shall make every effort to remove asphaltic roofing elements. Removal efforts shall include use of methods such as pressure washing, scrapers, wire brushes, electric drill wire-wheels, or other similar tools. Residual asphalt is defined as asphaltic material remaining after the exercise of all required removal efforts, and exists when there is asphaltic material greater in thickness than 3 mils (.08 mm) over an area greater than 1 square foot (0.1 m2). Residual asphalt shall be primed with Multi-Purpose Primer or Bleed-Block Acrylic Base Coat.

H. Treatment of Rust Areas: Remove all loose, flaking or powdery rust by wire brushing if it has not been removed during the pressure washing. Prime residual rust areas with Metal Roof Primer. Roof panels which are corroded to the point where holes are present shall be replaced.

I. Priming of Pre-Finished Metal Panels: Where roof panel surfaces are known or suspected to contain Kynar-500, other fluoropolymers or silicone, test patches shall be prepared with and without the use of Multi-Purpose Primer.

Based on test patch adhesion results, Installer shall apply Multi-Purpose

Primer on pre-finished metal panels per specifications.

J. Neoprene Pipe Boots: Recommend the installation of neoprene boots prior to flashing work being performed for certain types of pipe penetrations.

Neoprene boots shall first be sealed to the roof using a bead of FlexSeal™

Sealant prior to mechanical attachment with fasteners.

K. Open Ridge Vents: Open ridge vents (as shown in detail drawings) may begin to corrode on the inside, and over time, may leak. Sheet metal caps shall be installed when leaks are suspected from the vents. Installation of a cap on the ridge vent will prevent water entry while allowing air to continue to flow through the vent. Do not seal weep holes on the vents. Inadequate roof ventilation may cause blistering of the roof coating due to inside air "blowing-out" through roof panel seams. When this condition occurs, it may not allow for proper curing of the Acrylic which may cause blisters.

L. Condensate Lines: Type of piping used for condensate lines may vary depending on local building codes. Lines shall be securely fastened to panel ribs.

M. Deteriorated Seams/Cracks: Repair all delaminated or open seams using method acceptable to the manufacturer.

3.03 FLASHING APPLICATION

A. After completion of substrate preparation, all flashing details, horizontal seams, penetrations and curbs shall be 3-coursed with either 6 inches (152

mm) or 12 inches (395 mm) Premium Fabric embedded in Premium Brush-

Grade Acrylic Flashing in accordance with the manufacturer’s Detail

Drawings. Flashing shall be feathered at the edges to ensure that water flows over the various flashing details.

B. Rakes: All fixed rake details for the roof shall be secured and sealed with a

12 inches (305 mm) minimum width of and Premium Fabric and Premium

Brush-Grade Acrylic Flashing. If fixed rake metal is fastened to the top of roof panel ribs and extends back onto the roof, trim off any excess metal and follow horizontal seam flashing procedures. All voids and open areas shall be filled with polyurethane foam prior to application of Premium Fabric and

Premium Brush-Grade Acrylic Flashing.

C. Parapet Walls: All parapet wall details within the roof system shall be secured and sealed with a 12 inches (305 mm) minimum width of Premium

Fabric and Premium Brush-Grade Acrylic Flashing. If parapet wall flashing metal is fastened to the top of roof panel ribs and extends back onto the roof, trim off any excess metal and follow horizontal seam flashing procedures. All voids and open areas shall be filled with polyurethane foam prior to application of Premium Fabric and Premium Brush-Grade Acrylic Flashing.

D. For standing seam roof panels, contact the manufacturer’s Design Services

Department for information.

E. Curb Flashings: All curb flashings, including cricket details, shall be flashed with at least a 12 inche (305 mm) width of Premium Fabric and Premium

Brush-Grade Acrylic Flashing. Encapsulate all fasteners using Premium

Brush-Grade Acrylic Flashing. Do not bridge fasteners. Fabric shall be cut around all fasteners so the fabric lies flat.

F. Penetrations: Premium Brush-Grade Acrylic Flashing shall be applied around the base of all penetrations, extending at least 6 inches (152 mm) onto the vertical and 6 inches (152 mm) onto the base. Embed a 12 inches (305 mm) width of Premium Fabric using additional Premium Brush-Grade Acrylic

Flashing. Cut Premium Fabric to accommodate the shape of the penetration.

Both the top and bottom of neoprene pipe boots shall be flashed using

Premium Brush-Grade Acrylic Flashing as described above.

G. Treat seams:

1. Horizontal Seams: to be treated with a 6 inch (15.2 cm) wide band [12 inches (30.5 cm) at the perimeter and transitions] of Premium Brush-Grade

Acrylic Flashing at 2.0 gal per 100 ft2 (8.14 L/m2), Premium Fabric, and 2.0 gal per 100 ft2 (8.14 L/m2) Premium Brush-Grade Acrylic Flashing.

2. Vertical seams: Overlap and trapezoidal vertical seams to be treated with

2.0 gal per 100 ft2 (8.14 L/m2) of Premium Brush-Grade Acrylic Flashing.

Other vertical seams may forgo treatment IF the seal/tape is intact on the seam or if they are double locked.

H. Skylights: Curb skylights shall be treated in the same fashion as Curb

Flashings. After flashing work has been completed and Premium Brush-

Grade Acrylic Flashing has cured, treat deteriorated fiberglass skylight panels with SkyLite.

I. Gutters: Trowel or brush apply FlexSeal™ Sealant to the interior or exterior gutters incorporating 12 inches (305 mm) Premium Fabric at all gutter seams. Gutter shall be completely clean and dry before applying FlexSeal™

Sealant.

J. Ponding Water Areas: Contact the manufacturer’s Design Services

Department for information.

3.04 FIELD OF ROOF APPLICATION AND RATES

A. 20-year System Application:

1. Apply two coats of Premium Acrylic HydroStop® Top Coat at the rate of

1.5 gal per 100 ft2 (6.11 L/10m2) per coat (3 gallons TOTAL), allow at least

24 hours drying time between coats and then inspect for defects, flaws or areas of insufficient coverage. Correct any unsatisfactory conditions. The specified dry coating total system thickness is 25 mils. All unsatisfactory areas must be repaired.

3.05 INSPECTION INFORMATION

A. Inspect Preliminary Work / Flashing Details for problem areas (e.g., gaps, cracks, fishmouths, air pockets, etc.) to ensure that work is complete and satisfactory.

B. Inform Project Architect and the manufacturer’s Field Services Department when all preliminary work and flashing details will be complete and the

Installer is ready to proceed with application of System. Allow a minimum of two (2) weeks for the interim inspection to be made by the manufacturer ‘s

Field Services Department.

C. Any final roofing installation prior to this interim inspection is subject to rejection by the Project Architect and/or the manufacturer’s Field Services

Department. Please be advised that Technical On-Site Support for instructing

Certified Contractors in the proper application of the HydroStop® Roofing

System is available. The first day of instruction is at no-charge to the

Certified Contractor. Any additional days or return trips for instruction will be at a cost of $600.00 per day, plus all incurred travel expenses. The two (2) required inspections (interim and final) for the Liquid Applied Roofing System

Guarantees are free of charge. Additional inspections will be billed at a rate of $600.00 per day plus all incurred travel costs.

3.06 OTHER ITEMS

A. Installer shall take photographs of representative roof areas, including detail work, before work commences, after the surface has been properly prepared, after all flashing and detail work has been performed, and after the spray application of the membrane.

B. Installer shall provide the following support for on-site inspections by a representative from the manufacturer’s Field Services Department (list is not comprehensive):

1. Representative from the installer's company who has authority to make binding decisions

2. Required means to access all areas of the treated roof.

3. Previous photographs of the roof, including test patch results, as applicable

4. The manufacturer’s products and application equipment required to repair roof areas where destructive tests are to be performed by the manufacturer’s Field Services Department.

C. Special care shall be taken to avoid shading when spraying dark colors.

When applying the manufacturer’s products, Installer shall always spray wet material onto wet material to ensure that spray lines do not appear.

D. Installer shall take special care when moving spray hoses and other equipment on the roof so that flashing work and encapsulated fastener heads are not damaged. Also, all spray equipment shall remain on the ground for the duration of the job.

E. If there will be an extended period of time (6 months or greater) between application of base and finish coats, the base coat shall be thoroughly cleaned before applying the finish coat.

F. It is strongly recommended that walkways designed for metal roofing systems be installed in all high traffic areas. Contact the manufacturer’s

Design Services Department for recommendations.

3.07 REPAIRS

A. In the event that the membrane is damaged or punctured, repairs are to be performed using the specified Coating or Flashing and Premium Fabric

(where necessary) as follows:

1. Damaged areas are to be cut, cleaned and dried.

2. Apply Flashing or the specified Coating with Bulking Fiber, and feather out onto the existing membrane.

3. If a new penetration area has been cut, embed Premium Fabric into the

Flashing or the specified Coating with Bulking Fiber according to standard manufacturer specifications.

4. Once the Flashing has cured, the Coating may be applied for aesthetic uniformity.

END OF SECTION

SECTION 07 51 00 – ASPHALT SHINGLES

1.1 SECTION INCLUDES

A. Underlayment

B. Ice and Water Shield

C. Shingles

A. SECTION 01 01 01

B. SECTION 01 03 00

C. SECTION 02 07 20

D. SECTION 06 10 00

E. SECTION 07 50 00

F. SECTION 07 51 13

G. SECTION 07 62 00

1.3 SUBMITTALS

A. Submit information on all products, and exact method of attachment. Submit sample of shingle.

B. SUBMIT TO THE CONSULTANT THE METHOD OF INSTALLING SHINGLES,

CUT EDGES, SEALANT, AND OTHER ITEMS REQUIRED FOR WATERTIGHT

INSTALLATION. SECURE APPROVAL BEFORE STARTING.

1.4 STORAGE AND HANDLING

A. Store shingles on ground, or if on roof, distribute the load. All roll goods, 30 pound felt and ice and water shield must be stored in covered vans.

1.5 COORDINATION

A. Coordinate work with other trades for timely installation. Sheet metal associated with this work must be done within two days of the shingle application.

1.6 WARRANTY

A. The roofing contractor is required to furnish a three year warranty which must be issued on a standard MRCA document.

B. The shingle manufacturer will furnish a Thirty year (30) warranty.

PROVIDE WARRANTIES FOR THESE ITEMS ACCEPTABLE TO THE CONSULTANT

AND TO THE OWNERS. PROVIDE TO THE CONSULTANT, PRIOR TO STARTING

THE PROJECT, THE FORMS TO BE USED FOR THE WARRANTIES.

2.1 SHINGLES AND ACCESSORIES

A. TAMKO Heritage, Owens Corning, Elk or Certain Teed 20 year premium shingles, or approved equal, color to be selected by the Owner.

B. Underlayment: Use 30# roofing felt underlayment, two layers.

C. Water Shield: Use Grace HIGH TEMPERATURE Ice and Water Shield, 36 inch wide rolls.

D. Nails: Use stainless steel, galvanized or coated full ring shank nails, 1 1/4 inch long.

E. Valleys: Use Grace High Temperature Ice and Water Shield in all valleys for closed valley installation.

3.1 PREPARATION

A. Remove all existing materials down to the wood substrate. Remove only one slope at a time, or only enough that can be completely covered and made watertight each day.

B. Completely clean all debris from the wood, including all nails, etc., and remove all debris that may go inside the soffit area.

C. Install plywood if deteriorated areas are found. Match thickness.

D. Install new gutters per sheet metal section as an alternate price. Gutters should slope a minimum or 1/8” per foot, coordinate with the Consultant.

E. Install ice and water shield as described on the plan plus two layers of 30# felt over the entire slope. Staple or nail felts to hold in place.

F. Install all valley felt and other metal for all flashings.

G. At the end of each day seal the top edge of all shingles that don’t extend to the ridge.

3.2 SHINGLES

A. Install shingles using six (6) nails per each shingle. Install all jacks, etc. as work progresses. Paint galvanized portions to match the shingle color, do not paint surrounding shingles.

B. Check all shingles to be sure that all self sealing tabs are engaged. Use shingle stick to fully engage all tabs not sealed. Shingle stick all shingles for the bottom three courses at all low edges, full one shingle width at all rakes, and around all penetrations.

C. Line valleys with ice and water shield, closed valleys.

D. Hand seal the first three rows of shingles with asphalt caulk compatible with the shingles.

E. Follow manufacturer’s instructions for installation and for instructions for the complete installation of all shingles for warranty, except as modified in this section.

END OF SECTION 07 51 00

SECTION 07 53 23 – FULLY ADHERED EPDM MEMBRANE ROOFING

1.1 SECTION INCLUDES

A. The work in this section includes the removal of the existing roof membrane. The contractor will provide all labor and materials and items to complete this task.

B. The work includes installing a new 60mil EPDM roof over DensDeck and additional and existing roofing insulation.

C. Membrane roofing flashings.

B. SECTION 01 03 00

C. SECTION 02 07 20

D. SECTION 06 10 00

E. SECTION 07 50 00

F. SECTION 07 51 13

A. Details are based upon Carlisle’s 60 mil EPDM membrane fully adhered.

1.4 SUBMITTALS

A. The selected contractor will submit to the Consultant via email copies of all products to be used by the contractor.

B. Manufacturer's Certificate: For the roofing and flashings (to be from same manufacturer) certify that the package of products meets specified requirements.

1.5 SYSTEM DESCRIPTION

A. Work includes removal of all existing roofing down to the existing insulation.

Removal of all flashings and associated items. Installation of new insulation, DensDeck prime and new 60 mil fully adhered EPDM.

1.6 QUALITY ASSURANCE

A. Perform all work in accordance with best accepted practice for EPDM roofing, and with the Manufacturer’s instructions, except as modified here.

B. Contractor to have at the job site at all times one complete set of contract documents for the crew installing this work.

1.7 QUALIFICATIONS

A. Work will be performed by a roofing company who specializes in the installation of EPDM roofing. The roofing contractor must be a licensed applicator of the system proposed, and the system must be approved by the Consultant. The roofing contractor must have continuously installed the specified roofing system and components for five years under the same name (documented proof required).

B. Provide references for five projects of similar size and scope.

C. Provide Bonding Capacity.

D. Provide Financial Statement.

1.8 PRE-CONSTRUCTION MEETING

A. The successful roofing contractor and all sub-contractors will be required to attend a pre-construction meeting, time and date to be set by the Consultant. At the meeting the roofing contractor will be required to have the following:

a. Schedule for work.

b. Staging area plan.

c. Submittals of all products.

d. Present a copy of the guarantee application confirmation from the roofing material manufacturer.

e. MSDS sheets.

f. Name and phone numbers of project manager, field superintendent and foreman.

g. Other required documentation in the contract documents.

1.9 DELIVERY, STORAGE AND HANDLING

A. Deliver all products to the job site and store in covered vans protected from the weather. If products are stored other than the job site, protect them from any moisture or damage by storing inside a warehouse. Materials that are unprotected are wet or damaged or appear to have been wet, will be rejected by the Consultant at their sole discretion. Leave original wrappers on materials. If products come without wrappers the roofing contractor may be required to furnish proof of the product compliance with the contract documents.

B. Avoid damaging products during transportation to the job site or delivery to the roof. Damaged products will be rejected as determined solely by the Consultant

C. Do not store materials on the roof. Transport to the roof materials to be used that day.

D. Remove from the roof edge any ladders, or other equipment set against the building each day. Lock all equipment each day at night.

E. Curable materials must be stored in an enclosed area where the temperature will be between 60 to 80 degrees Fahrenheit. Completely close all containers used during the day.

F. Provide temporary ballast if required.

G. For the new EPDM, protect the membrane so that traffic does not damage it.

CONTRACTOR IS SOLELY RESPONSIBLE.

1.10 COORDINATION

A. Coordinate the reroofing work with other trades so that each day's work is kept watertight. Presence of leaks will require the roofing contractor’s immediate attention and may require removal of newly installed or existing materials (if wet or damaged) determined solely by the Consultant. The roofing contractor will be required to coordinate the activities of its sub-contractors and be responsible for them.

1.11 WARRANTY

A. The roofing contractor is required to furnish a three-year warranty which must be issued on a standard MRCA document.

B. Furnish a 20 year no dollar limit warranty from the manufacturer.

1.12 SUBMITTALS AND SHOP DRAWINGS

A. Submit to the Consultant a set of shop drawings showing all sheet layout, proposed fastener locations, and products to use in the installation.

B. RAISE ALL UNITS MINIMUM 8 INCHES OFF THE FINISHED ROOF SURFACE

PRIOR TO INSTALLATION OF NEW ROOFING.

C. PROVIDE INTERIOR PROTECTION FOR ALL AREAS WHERE DAMAGE

FROM THE ROOF MIGHT OCCUR. SECURE APPROVAL FROM

CONSULTANT AND OWNER PRIOR TO STARTING REROOFING.

2.1 MANUFACTURERS-SHEET AND RUBBER MATERIALS

A. Carlisle.

B. Alternate manufacturers require the Consultant’s approval prior to bid time.

2.2 SHEET MATERIALS

A. 60 mil thick non-reinforced EPDM membrane.

B. Flashings for details: uncured EPDM.

2.3 INSULATION

A. Leave the existing insulation in place. Add 1 ½ inch isocynaurate insulation.

Mechanically fasten all insulation with 18 fasteners and plates in field area.

Install 24 fasteners and plates in 15 foot perimeter of all roofs. Install 32 fasteners and plates in 15 foot by 15 foot of all corners of all roofs.

PLEASE NOTE-THERE MAY BE CONDUIT PRESENT IN THE METAL DECK

FLUTES. CONTRACTOR TO CHECK AND VERIFY EXISTANCE OF CONDUIT

PRIOT TO ROOFING ROOF STARTING.

Install ½ inch thick Densdeck prime over insulation set in low rise adhesive.

Ribbons to be maximum 6 inches apart. Provide weight once Densdeck is set in adhesive. Loose boards will be removed. Follow manufacturer directions and instructions for low rise adhesive. Submit product information for low rise adhesive for approval in submittals.

REPLACE ALL EXISTING WALK PADS AT SAME LOCATIONS AS

EXISTING. MARK A CURRENT ROOF PLAN SHOWING THE LAYOUT

PRIOR TO STARTING REROOFI NG FOR REFERENCE. PADS TO BE

WHITE. INSTALL ACCORDING TO MANUFACTURER INSTRUCTIONS.

2.4 ACCESSORY MATERIALS

A. Splicing Cement

B. Use In Seam Sealant, Lap Sealant, Splice Cleaner, Splicing Cement, uncured Elastoform Flashing, Bonding Adhesive and other accessories as required by the Manufacturer, or the Consultant, for a complete installation.

2.5 ADHESIVES AND CLEANERS

A. Bonding Adhesive Per Manufacturer.

B. Splicing Cement Per Manufacturer.

C. Splice Tape and Primer Per Manufacturer.

D. Membrane Cleaning Solvent Per Manufacturer.

E. External Seam Sealant Per Manufacturer.

F. Two Part Pourable Sealer Per Manufacturer.

2.6 ROOF ACCESSORIES

A. Roof Drains- Replace all plastic parts, including clamping rings and strainers, with cast iron. Use the same manufacturer as the existing drains. Replace broken or rusted clamping ring bolts with new bolts.

B. Roof Hatch Guard Rails- Use Bilco Bil-Guard.

C. Guard Rails- Use KeeGaurd by Kee Safety, or approved equal. Install slip sheet under all counter weights.

3.1 GENERAL

A. Follow criteria outlined in Manufacturer’s Technical Manual, design criteria.

Follow manufacturer instructions for installation requirements except as modified here. In case of questions, ask the Consultant for instructions.

3.2 EXISTING INSULATION

A. Replace existing insulation that is wet. Ask the Consultant to determine if the insulation must be replaced.

B. Clean all debris from the existing insulation surface so that it is clean and free of all objects before installing new membrane.

3.3 INSTALLATION OF FIELD SHEET

A. Use 10-foot-wide, or wider if available (but not wider than 20 feet), sheets for the field area. Apply sheets as directed by the Consultant. Install sheets with no water laps. Allow sheet to relax 1/2 hour before installing.

B. Overlap sheets a minimum of 8 inches at the side laps. Clean the laps and apply primer. Apply seam tape after the primer has dried. Roll the sheets together with a steel roller to completely roll the lap.

C. When cleaning the sheet use only rags.