10760 4th Street \\ Rancho Cucamonga, California 91730 \\ P 909-987-0909 \\ BEAMProf.com

Project Manual

For

Mt. San Antonio College Roofing Projects at Buildings 2T & 2M, 9A and 69

VOLUME 1 and 2 Bidding and Contract Requirements And Specifications for the

1100 N. Grand Ave., Walnut, CA 91789

May 26, 2026

BEAM Project No.: 260215

Issued for Competitive Sealed Bid

10760 4th Street \\ Rancho Cucamonga, California 91730 \\ P 909-987-0909 \\ BEAMProf.com

Project Manual

For

Roofing Projects at Buildings 2T & 2M, 9A and 69 for the

1100 N. Grand Ave., Walnut, CA 91789

May 26, 2026

BEAM Project No.: 260215

Consultants:

Building Envelope Consultant BEAM Professionals Shawn LeCrone, RRC, RRO, REWO, CD, IIBEC

10760 4th Street Rancho Cucamonga, California 91730

BEAM Professionals Roofing Projects at Buildings 2T, 2M, 9A and 69 Project No. 260215 Mt. San Antonio College

TABLE OF CONTENTS

00 00 00 - 1

PROJECT MANUAL COVER SHEET AND STAMP PAGE

DOCUMENT 00 00 00 TABLE OF CONTENTS

VOLUME 1

BID DOCUMENTS by Mt. San Antonio College

DIVISION 0 PROCUREMENT AND CONTRACTING REQUIREMENTS

DIVISION 1 GENERAL REQUIREMENTS

VOLUME 2

TECHNICAL SPECIFICATIONS by BEAM Professionals

DIVISION 2 EXISTING CONDITIONS

02 41 19 Selective Demolition

DIVISION 3 CONCRETE

DIVISION 4 MASONRY

DIVISION 5 METALS

DIVISION 6 WOOD, PLASTICS, AND COMPOSITES

DIVISION 7 THERMAL AND MOISTURE PROTECTION

07 14 00 Fluid-Applied Membrane Waterproofing 07 52 00

07 62 00 Modified Bituminous Membrane Roofing Sheet Metal Flashing and Trim

07 63 00 Roof Related Sheet Metal 07 92 00 Joint Sealants 07 92 00 Joint Sealants

DIVISION 8 OPENINGS

DIVISION 9 FINISHES

DIVISION 10 SPECIALTIES

DIVISION 11 EQUIPMENT

DIVISION 12 FURNISHINGS

DIVISION 22 PLUMBING

DIVISION 23 MECHANICAL

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TABLE OF CONTENTS

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DIVISION 26 ELECTRICAL

DIVISION 27 COMMUNICATIONS

DIVISION 28 ELECTRONIC SAFETY AND SECURITY

DIVISION 31 EARTHWORK

DIVISION 32 EXTERIOR IMPROVEMENTS

DIVISION 33 UTILITIES

END OF DOCUMENT 00 00 00

BEAM Professionals Roofing Projects at Buildings 2T, 2M, 9A and 69 Project No. 260215 Mt. San Antonio College

SELECTIVE DEMOLITION

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SECTION 02 41 19 SELECTIVE DEMOLITION

PART 1 GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes requirements including but not limited to:

1. Demolition and removal of selected portions of existing roofing.

2. Accessories necessary for demolition and deconstruction.

1.3 DEFINITIONS

A. Remove: Detach items from existing construction and dispose offsite.

B. Remove and Reinstall: Detach items from existing construction with care to prevent damage, clean and refurbish, prepare for reuse, store as necessary, and reinstall where indicated.

C. Deconstruct: To remove by disassembling or detaching an item from a surface, using methods and equipment to successfully prevent damage to the item and surfaces; and dispose of items.

1.4 SUBMITTALS

A. Engineering Survey: Submit engineering survey of condition of building, and roof structures.

B. Proposed Protection Measures: Submit report, including Drawings, indicating proposed measures for protecting individuals and property, for environmental protection, dust control and noise control. Indicate proposed locations, types, and construction of barriers.

C. Schedule of Selective Demolition Activities:

1. Detailed sequence of selective demolition and removal work, with starting and ending dates for each activity. Ensure Owner's on site operations are uninterrupted.

2. Interruption of utility services. Indicate how long utility services will be interrupted.

3. Coordination for shutoff, capping, and continuation of utility services.

4. Use of elevator and stairs.

5. Coordination of Owner's continuing occupancy of portions of existing building and of

Owner's partial occupancy of completed Work.

D. Pre-demolition Photographs or Video: Show existing conditions of adjoining construction, including finish surfaces that could be construed as damage caused by demolition operations. Submit prior to commencement of the work.

E. Warranties: Documentation indicating that existing warranties are still in effect after completion of selective demolition.

1.5 QUALITY ASSURANCE

A. Regulatory Requirements:

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1. Demolition Standards: Comply with ASSE A10.6 and NFPA 241.

2. Comply with EPA regulations prior to commencement of the work. Comply with hauling and disposal regulations of authorities having jurisdiction.

3. Comply with applicable federal, state, and local codes for demolition work, dust and noise control, safety of structure, and debris removal.

4. Obtain required permits from authorities having jurisdiction.

B. Pre-demolition conference to be conducted at the site:

1. Inspect and discuss condition of construction to be selectively demolished.

2. Review structural load limitations of existing structure.

3. Review and finalize selective demolition schedule and verify availability of materials, demolition personnel, equipment, and facilities needed to make progress and avoid delays.

4. Review requirements of work performed by other trades that rely on substrates exposed by selective demolition operations.

5. Review areas where existing construction scheduled to remain and requires protection.

6. Review with Owner Staging areas for equipment and material storage and removal.

C. Arrange selective demolition schedule to avoid interference with Owner's and the school’s operations.

1.6 WARRANTY

A. Existing Warranties: Remove, replace, patch, and repair materials and surfaces cut or damaged during selective demolition, by methods and with materials and using approved contractors so as not to void existing warranties. Notify warrantor prior to proceeding.

Existing warranties to be provided by Owner prior to the start of construction.

B. Notify warrantor on completion of selective demolition, and obtain documentation verifying existing system has been inspected and warranty remains in effect. Submit supporting documentation at closeout.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Unless otherwise indicated, demolition waste becomes property of Contractor.

B. Historic items, relics, antiques, and similar objects including, but not limited to, cornerstones and the contents, commemorative plaques and tablets, and other items of interest or value to Owner that may be uncovered during demolition remain the property of Owner.

PART 2 PRODUCTS

2.1 MATERIALS

A. Repair Materials:

1. Use repair materials identical to existing materials:

a. If identical materials are unavailable or cannot be used for exposed surfaces, use materials that visually match existing adjacent surfaces to the fullest extent possible.

b. Use materials whose installed performance equals or surpasses that of existing materials.

B. Comply with material and installation requirements specified in individual Specification Sections.

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PART 3 EXECUTION

3.1 ROOF REMOVAL

A. Roof Assembly:

1. Remove existing roofing to the extent that can be covered in one day by new roofing.

Maintain building interior in watertight and weathertight condition:

a. Remove existing roof membrane, flashings, copings, and roof accessories.

b. Remove existing roofing system down to substrate.

B. At new column extensions, cut through roofing as required for welding of new extension.

Provide temporary watertight enclosure over stubs and temporarily flash to existing roof to make completely watertight.

C. At existing parapets, remove portions of roofing, flashing, stone, and masonry necessary to weld new steel and set form work. Provide temporary watertight enclosures over areas of open roof and temporarily flash to make watertight.

D. As column forms are placed, temporarily flash columns to existing roofing and cover with watertight tarpaulins before and after pouring. After column forms have been removed, temporarily flash new concrete structure into existing roofing immediately to maintain watertight roof.

E. When removing roofing to place supports for shoring of form work to transfer loads to existing columns or approved structure or to support scaffolding, work platforms, or similar loads, temporarily flash supports to make roof watertight.

F. Remove excess residue. Thoroughly clean and remove asphalt, dust, loose materials and leave ready for new work.

3.2 PATCHING AND REPAIRS

A. Promptly repair damage to adjacent construction caused by selective demolition operations.

B. Repairs:

1. When necessary to repair to existing surfaces, patch to produce surfaces suitable for new materials:

a. Fill holes and depressions in existing masonry walls to remain with masonry patching material applied according to manufacturer's written recommendations.

C. Finishes: Restore exposed finishes of patched areas and extend restoration into adjoining construction in a manner that eliminates evidence of patching and refinishing.

3.3 DISPOSAL OF DEMOLISHED MATERIALS

A. Legally remove demolition waste materials from site and dispose in an EPA approved construction and demolition waste landfill acceptable to authorities having jurisdiction recycle or reuse components:

1. Do not allow demolished materials to accumulate on site.

2. Remove and transport debris to prevent spillage on adjacent surfaces and areas.

3. Remove debris from elevated portions of building by chute, hoist, or devices that conveys debris to grade level in a controlled descent.

B. Burning: Do not burn demolished materials.

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3.4 CLEANING

A. Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations. Return adjacent areas to condition existing before selective demolition operations began.

END OF SECTION 02 41 19

Project No. 260215 Mt. San Antonio College

FLUID-APPLIED MEMBRANE WATERPROOFING

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SECTION 07 14 00 FLUID-APPLIED MEMBRANE WATERPROOFING

PART 1 - GENERAL

1.1 SUMMARY

A. Provide a cold fluid-applied polyurethane waterproofing system over prepared modified bitumen substrate.

1. Mechanical Well Building 2M & 2T: clean and prepare existing roof surface per manufacturer’s requirements. Existing roofing to remain.

2. Prime substrate per manufacturer requirements.

3. Install, reinforced, fluid applied membrane.

4. Note: broadcast aggregate protection layer for pedestrian traffic applications in mechanical well of building 2T & 2M. Penthouse roof at 2T building does not require the sand broadcast application.

5. Work includes bridging and sealing air leakage and water intrusion pathways and gaps including connections of the walls to the roof air barrier, and penetrations of the building envelope including piping, conduit, ducts and similar items.

1.2 PERFORMANCE REQUIREMENTS

A. Cold fluid applied polyurethane waterproofing system is intended to perform as a continuous barrier against liquid water and to flash or discharge to the exterior incidental water. Membrane system is intended to receive an impervious overburden of optional insulation and concrete, tile in a cementitious setting bed, pavers in a sand setting bed, or asphalt pavement, and shall accommodate movements of building materials as required with accessory sealant materials at locations such as: changes in substrate, perimeter conditions and penetrations. Installed waterproofing membrane system shall not permit the passage of water and will withstand the design pressures calculated in accordance with the most current revision of ASCE 7.

B. Manufacturer shall provide all primary waterproofing materials that are physically and chemically compatible when installed in accordance with manufacturers current application requirements.

C. Manufacturer must have completed a Cradle-To-Grave Life Cycle Analysis (LCA) and Environmental Product Declaration (EPD) according to ISO 14025:2006 for the roofing/waterproofing system.

1.3 SUBMITTALS

A. Submittals: Comply with project requirements for submittals as specified in Division 01.

B. Product Data: For each product.

C. Shop Drawings: Manufacturer’s standard details and shop drawings for the specified system.

D. Manufacturer must provide a complete Cradle-To-Grave Life Cycle Analysis (LCA) and Environmental Product Declaration (EPD) according to ISO 14025:2006 for the roofing/waterproofing system.

E. Installer’s Authorization: Installer shall provide written documentation from the manufacturer of their authorization to install the system, and eligibility to obtain the warranty specified in this section.

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F. Manufacturer’s Certification: Certification showing full time quality control of production facilities and that each batch of material is tested to ensure conformance with the manufacturer's published physical properties.

G. VOC Certification: Manufacturer’s certification that all waterproofing system products meet current Volatile Organic Compound (VOC) regulations as established by the State in which they are being installed; and stating total VOC content, in grams per liter, for all system components (i.e. primers, adhesives, coatings, etc.).

1.4 QUALITY ASSURANCE

A. Manufacturer’s Qualifications: Manufacturer shall demonstrate qualifications to supply materials of this section by certifying the following:

1. Membrane Manufacturer shall have been producing fluid-applied waterproofing membranes for over 30 years.

2. Membrane Manufacturer shall have available an in-house technical staff to assist the contractor, when necessary, in the application of the products and site review of the assembly.

B. Installer’s Qualifications: The Contractor shall demonstrate qualifications to perform the Work of this Section by submitting certification or license by the waterproofing membrane manufacturer as a trained and authorized applicator of the product the installer intends to use.

C. Source Limitations: All components listed in this section shall be provided by a single manufacturer or approved by the primary waterproofing manufacturer.

D. Materials Compatibility: All materials included in the waterproofing assembly, as well as associated materials adhered to/applied beneath the waterproofing membrane shall have been tested and verified to be compatible. Include written testing documentation if requested by Architect.

E. Final Inspection: Manufacturer’s representative shall provide to the Architect a comprehensive site visit report after the completion of the waterproofing system.

F. Applicable Regulations: Comply with local code and requirements of authorities having jurisdiction. Do not exceed VOC regulations as established by the State in which they are being installed, including total VOC content, in grams per liter, for all system components (i.e. primers, adhesives, coatings, and similar items).

G. Waterproofing Terminology: Refer to ASTM D1079 and the glossary of the National Roofing Contractors Association (NRCA) Roofing and Waterproofing Manual for definitions of waterproofing terms related to this section.

1.5 PRE-INSTALLATION CONFERENCE

A. Prior to scheduled commencement of the waterproofing installation and associated work, conduct a meeting at the project site with the installer, architect/consultant, owner, manufacturer’s representative and any other persons directly involved with the performance of the Work. The Installer shall record conference discussions and to include decisions and agreements reached (or disagreements) and furnish copies of recorded discussions to each attending party. The main purpose of this meeting is to review foreseeable methods and procedures related to the Work.

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1.6 DELIVERY, STORAGE AND HANDLING

A. Deliver all waterproofing materials to the site in original containers, with factory seals intact.

B. Store all goods in their original undamaged containers in a clean, dry location within their specified temperature range on the product data sheet.

C. Do not expose materials to moisture in any form before, during, or after delivery to the site. Reject delivery of materials that show evidence of contact with moisture.

D. Remove manufacturers supply plastic covers from materials provided with such. Use “breathable” type covers such as canvas tarpaulins to allow venting and protection from weather and moisture.

Cover and protect materials at the end of each workday. Do not remove any protective tarpaulins until immediately before the material will be installed.

1.7 PROJECT CONDITIONS

A. Weather: Proceed with waterproofing only when existing and forecasted weather conditions permit. Membrane application can proceed when precipitation is imminent. Visual marks in the form of pock marks may occur if uncured membrane is exposed to rainfall but is not considered a limiting factor in the performance of the waterproofing membrane. Ambient temperatures shall be above 41°F (5°C) when applying the waterproofing system.

B. All surfaces to receive the waterproofing membrane shall be free from visible water, dew, frost, snow and ice. Application of waterproofing membrane shall be conducted in well-ventilated areas.

C. Waterproofing Membrane:

1. Waterproofing membrane is not intended to be exposed or in contact with a constant temperature below -22°F (-30°C) or in excess of 176°F (80°C). See technical data sheets for limitations, i.e., hot pipes and vents or direct steam venting.

2. Specified waterproofing membrane is non-flammable and VOC compliant. Consult container, packaging labels and Safety Data Sheets (SDS) for specific safety information.

3. Specified waterproofing membrane is resistant to gasoline, paraffin, fuel oil, mineral spirits, and moderate solutions of acids and alkalis, acid rain and detergents. Some low molecular weight alcohols can soften. Any exposure to foreign materials or chemical discharges shall be presented to membrane manufacturer for evaluation to determine any impact on the waterproof membrane assembly performance prior to installation.

D. Contractor shall ensure adequate protection during installation of the waterproofing system.

1.8 WARRANTY

A. Warranty: Provide manufacturer’s standard warranty. Materials warranty shall be for a minimum of one year starting at the date of Substantial Completion. System warranty shall be for the following duration in accordance with specified system.

1. Warranty Length: 20 years.

PART 2 - PRODUCTS

2.1 WATERPROOFING SYSTEM

A. Basis of Design System: Sikalastic RoofPro WP 20, Premium Reemat:

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1. Base Layer: Sikalastic 644 Lo-VOC, 45 mils wet film thickness; 35 sf/gal coverage rate approx.

2. Top Layer 1: Sikalastic 644 Lo-VOC, 30 mils wet film thickness; 53 sf/gal coverage rate approx.

B. Alternate Manufacturers & Systems:

1. Soprema: ALSAN RS 260 LO

2. Siplast: PARAFLEX 531

2.2 MEMBRANE REINFORCEMENT

A. Reinforcement for the waterproofing membrane system shall be either polyester or fiberglass, as recommended by membrane manufacturer.

2.3 PRIMERS

A. As recommended by membrane manufacturer.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that surfaces and conditions are ready to accept the Work of this section. Notify Architect in writing of any discrepancies. Commencement of the Work in an area shall mean Installer’s acceptance of the substrate.

B. Surfaces shall be sound, dry, clean, and free of oil, grease, dirt, excess mortar or other contaminants. Fill voids, gaps, and spalled areas in substrate to provide an even plane. Strike masonry joints full flush.

3.2 SURFACE PREPARATION

A. Verify that the deck is clean and smooth, free of depressions, waves, or projections, and properly sloped to drains, valleys, eaves, scuppers, or gutters. Verify that all openings or penetrations through the intended substrate are secured back to solid blocking. Ensure all preparatory Work is complete prior to applying membrane.

B. Mechanical fasteners used to secure sheathing boards or penetrate sheathing boards shall be set flush with sheathing and fastened into solid backing.

C. All surfaces shall be blown clean using an air compressor to remove any remaining loose debris.

D. All cracks and voids greater than 1/16th 0.040 inches shall be routed and caulked with a polyurethane sealant. Allow to cure per waterproofing membrane manufacturer’s technical data sheets prior to over-coating with the specified waterproofing membrane system.

E. At all inside corners, gaps, or voids at the juncture of the deck and penetrations apply a minimum 3/4-inch fillet bead of polyurethane sealant and allow to cure per waterproofing membrane manufacturer’s technical data sheets prior to installing the waterproofing membrane system.

F. At all moving cracks, moving joints between dissimilar materials, and similar conditions, create a minimum 1-inch-wide bond break utilizing bond breaker tape, centered over the crack or joint.

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G. Membrane terminations shall be established prior to project start-up and documented in shop drawings. Terminations shall occur in raked-out mortar joints, saw cut terminations or under installed counter-flashing materials.

H. Use tape lines to achieve a straight edge detail.

3.3 SUBSTRATE PREPARATION

A. Acceptable substrates include concrete, concrete block, solid wood/plywood sheathing, approved cover board/thermal barriers, metal and sound existing roofing membrane. Note: all roof defects must be repaired prior to liquid membrane placement.

B. Existing Roofing/Waterproofing Membrane:

1. Acceptable existing roofing/waterproofing membrane must be sound, well adhered and free of any trapped moisture. Verification that the membrane is free of trapped moisture must be established with a moisture scan and a copy of the moisture scan must be provided to the manufacturer.

2. Ensure that there is no trapped moister via an infrared scan.

3. Pressure wash the roof to remove all dust, dirt and debris from the surface.

C. Metal Surfaces:

1. Exposed drain bowls, pipes, and other metal surfaces shall be cleaned by power tool cleaning (SSPC SP-3 or SP-11) to remove corrosion deposits back to a clean, bright metal followed by a solvent wipe prior to application of the specified primer.

3.4 PRIMING

Note: Allow all primers to cure and dry in accordance with manufacturer’s product data sheets.

A. Concrete, Masonry, Cover Boards:

1. Mix and apply specified primer for concrete/masonry/wood surfaces by brush or roller at the application rate shown on the technical data sheet. Porous, rough, or absorbent surfaces will decrease coverage rates.

2. Allow to cure and dry in accordance with manufacturer’s technical data sheets.

B. Metal:

1. Apply specified primer for metal drain bowls and other metal surfaces by brush or roller at the application rate shown on the technical data sheet to achieve an overall wet film thickness of 6-8 mils. High roughness of the substrate will decrease coverage rates.

2. Apply specified primer to clean and prepared modified bitumen surfaces by brush or roller at the application rate shown on the technical data sheet. High porosity and roughness of the substrate will decrease coverage rates.

3. Allow to cure and dry in accordance with manufacturer’s technical data sheets.

3.5 MEMBRANE REINFORCEMENT

A. Reinforcement of Cracks, Plywood and Cover Board Joints, and Base/Curb Flashing Transitions:

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1. For all locations where the specified membrane system is to be applied directly to the substrate surface, provide reinforcement of cracks and joints prior to applying the specified membrane system.

2. For all horizontal-to-vertical transitions, provide a ¾” x ¾” polyurethane sealant cant.

3. Apply a minimum of a 3-inch-wide strip of polyester membrane reinforcement into a bed of liquid waterproofing membrane. Back roll reinforcement to fully embed reinforcement into the wet liquid polyurethane membrane. Add more liquid membrane as needed to fully embed the reinforcement.

4. Ensure reinforcement is not in tension during embedment.

3.6 COLD FLUID APPLIED MEMBRANE APPLICATION

A. Install waterproofing membrane system in accordance with current technical data sheets and in accordance with warranty guideline requirements.

B. Apply base embedment coat to horizontal deck and vertical wall surfaces by brush or with ½ inch nap roller to achieve a continuous and uniform minimum wet film thicknesses.

C. Immediately lay specified conformable reinforcement into the wet base embedment resin coat.

D. Apply pressure to the membrane reinforcement with a roller as appropriate to fully embed and saturate the membrane reinforcement into liquid waterproofing material. Remove air pockets from under the membrane by rolling them out.

E. Apply additional liquid material as required to ensure the membrane reinforcement is fully embedded and has conformed to the substrate without tenting, visible pinholes, air pockets, fish mouths or wrinkles.

F. Overlap sheets of reinforcement as recommended by membrane manufacturer.

G. Extend membrane reinforcement vertically at adjacent wall surfaces in accordance with project details and specifications.

H. When using fiberglass mat reinforcement, allow the base embedment coat to fully cure dry prior to the placement of topcoat or other applications of the specified waterproofing material.

I. When using polyester fleece reinforcement, immediately apply the resin topcoat wet-on-wet.

J. Apply topcoat by nap roller or brush to achieve a continuous and uniform minimum wet film thickness as specified in Section 2.2.

K. Install all flashings in accordance with manufacturer’s and/or project specific construction details.

3.7 PARAPET AND WALL FLASHINGS

A. Clean, prepare and prime flashing substrate surfaces ready to receive membrane flashing applications.

B. All parapet, wall, and curb flashings shall be provided with a sealant cant with reinforcement prior to flashing application.

C. Terminate waterproofing membrane system at raked-out mortar joints, termination saw cut joint, or under installed counter-flashing materials. Seal all mortar joints and saw cut joints with specified sealant.

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D. Install metal counter flashings in accordance with details.

3.8 DRIP EDGES AND OTHER METAL FLANGED FLASHING

A. Clean, prepare and prime metal flange surfaces ready to receive membrane flashing applications.

B. Metal flanges are typically encapsulated between two membrane layers, usually by providing membrane flashing as a stripping ply over the metal flange, with the field or flashing membrane extending beneath the metal flange. It is preferred to install the stripping ply under the metal flange and extend the field or flashing membrane over the metal flange.

C. For insulated waterproofing assemblies, metal flanges shall be mechanically fastened through the first membrane layer to wood nailers. For direct to substrate membrane applications where the waterproofing membrane is applied directly to the structural deck, metal flanges shall be mechanically fastened through the first membrane layer to the structural deck.

3.9 DRAINS

A. Clean, prepare and prime surfaces ready to receive membrane applications. Block drain bowl opening to avoid waterproofing material from entering the drainage system.

B. Remove strainer baskets and clamping rings from the drain bowl assembly. Temporarily replace the bolts back into assembly to avoid miss-alignment of connections after membrane applications are completed.

C. Extend the liquid waterproofing material and membrane reinforcement directly into the bowl of the prepared drain.

D. Remove drain blocks and allow the waterproofing system to fully cure dry prior to re-connecting the drain bowl assembly.

3.10 PENETRATIONS

A. Clean, prepare and prime surfaces ready to receive membrane flashing applications. Ensure that penetrations are secured to prevent movement.

B. Penetration flashings typically consist of two components. A vertical flashing component extends up the penetration and is torn (if Reemat reinforcement) or finger cut (if fleece reinforcement) at the bottom so that it can be extended horizontally onto the deck/substrate. A horizontal flashing component covers all of the tears/finger cuts and extends vertically up the penetration. The intent is to achieve a 2–3-inch overlap of the two flashing components.

3.11 AGGREGATE SURFACING

A. Apply aggregate surfacing as specified for walkways and other areas requiring enhanced slip resistance. DO NOT BROADCAST SAND INTO TOPCOAT.

B. Apply an additional 15 wet mil layer of resin to cured waterproofing membrane as soon as membrane can be walked on without damage.

C. Non-Skid Finish - Broadcast kiln-dried sand to refusal into the wet resin layer and allow to cure.

Remove all loose sand/aggregate. Apply an additional 15 wet mil layer of resin to seal kiln-dried sand.

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3.12 APPLICATION OF PENETRATION SEALANT

A. Seal reglet-based membrane terminations, heads of exposed mechanical fasteners, around penetrations, duct work, electrical and other apparatus extending through the waterproofing membrane with specified penetration sealant.

3.13 PROTECTION

A. Protect waterproofing Work from other trades until completion.

B. Stage materials in such a manner that avoids foot traffic over completed waterproofed areas.

C. Provide temporary walkways and platforms to protect completed Work from traffic and point loading during the application process.

D. Provide temporary membrane tie-ins and water-stops at the end of each workday and remove prior to commencement of Work the following day.

3.14 CLEAN-UP

A. Work areas are to be kept clean, clear, and free of debris at all times.

B. Do not allow trash, waste, and/or debris to collect on the work area. Trash, waste, and/or debris shall be removed from the work area on a daily basis.

C. All tools and unused materials shall be collected at the end of each workday and stored properly off of the finished waterproofed surface and protected from exposure to the elements.

D. Dispose of or recycle all trash and excess material in a manner conforming to current EPA regulations and local laws.

E. Properly clean the finished deck surface after completion, and make sure the drains and gutters are not clogged.

F. Clean and restore all damaged surfaces to their original condition.

END OF SECTION

BEAM Professionals Roofing Projects at Buildings 2T, 2M, 9A and 69 Project No. 260215 Mt. San Antonio College

MODIFIED BITUMINOUS MEMBRANE ROOFING

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SECTION 07 52 00 MODIFIED BITUMEN MEMBRANE ROOFING

PART 1 - GENERAL

1.1 SUMMARY

A. Install a two-ply modified bitumen roof system, including, but not limited to, primed gypsum barrier board, modified bitumen membrane flashings, sheet metal flashing/trim, and other components to comprise a weathertight roof system.

B. General Requirements for all modified bitumen roof systems:

1. All roof drains and drainage components (scuppers, etc.) must be tested prior to roof construction. Any defects are to be brought to the district’s attention. All clamping rings and strainers are to be replaced if cracked or damaged with new cast iron components. If no damage exists, clean and replace at the end of project.

2. All removal, hauling, and disposal procedures must be performed by a certified contractor and must meet or exceed the requirements as set forth by the local, state, and federal agencies that govern these procedures. Unless otherwise noted, remove all roofing, flashings, drip edge, soft metal flashings from the rooftop down to structural substrate.

3. Defects in decking, nailers, and other structural components shall be brought to the owner’s representative for direction on repair procedures.

4. All conduit is to be supported by pressure treated wood sleepers, spaced 16” on center, with a sacrificial membrane between the sleeper and primary roof membrane.

Sleepers should be installed in a manner that does not impede the drainage of water.

5. All new roofing must be protected by means of polyester felt and approved rigid boards when the new roofing must be used as an area to store materials or regular foot traffic will occur during construction. All storage and foot traffic over new roofing must be avoided at all costs.

6. Provide liquid flashings in lieu of soft metal flashings.

7. Perform all flashing and detail work in strict accordance with the roof system manufacturer’s standard written and detail requirements. As indicated within the project detail drawings and/or specification requirements, those specific project requirements shall supersede any corresponding minimum/standard manufacturer requirements. Manufacturer Letters of Convenience intended for deviation from the specified installation and/or detail requirements will not be accepted.

C. Scope Description

1. Building 2M Recital Hall

a. Remove entire roof system, coping, flashings, and related components down to structural metal deck. All demolition and removal shall be done in accordance with local code/jurisdiction requirements. Notify owner’s representative of any defective decking or auxiliary components of roofing.

b. Loose lay two (2) layers of 2.6” polyisocyanurate insulation, fastening the top layer of insulation to the metal deck. Crickets are to be replaced with like and kind, adhered to the fastened flat stock insulation.

c. Adhere one (1) layer of ¼” gypsum coverboard over the fastened layer of insulation.

d. Install 2-ply modified bitumen roof system.

e. Install new coping cap to match the existing color, profile, and dimensions of the coping it replaced.

2. Building 2M

a. Remove all walk pads, roof-mounted/curb-mounted expansion joints, pitch pockets, one-way vents, perimeter drip edge flashings, and all roof flashing materials down to substrate. Field of roof to remain. Remove all existing contaminants, dust, dirt, and debris from existing roof system. Repair any blisters or deficiencies in existing roof prior to roof construction.

b. Remove existing counter-flashing and set aside for re-installation post membrane roof installation.

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c. Parapet walls with modified roofing installed up and over wall, underneath coping cap are to receive new membrane flashings up and over wall. Install new coping cap to match the existing color, profile, and dimensions of the coping it replaced.

d. Fasten ¼” gypsum coverboard over existing field membrane roofing.

e. Install 2-ply modified bitumen roof system.

f. Install new walk pads to and from rooftop access points and mechanical equipment.

a. Include 100 lineal feet of walk pad in base bid.

g. Install new-PVC field fabricated expansion joint at all locations where roof mounted/curb mounted expansion joints are located.

h. Line Items:

a. Provide line item for lower counter flashing replacement on a linear foot basis.

3. Building 2T

a. Remove walk pads, metal coping caps (when roof flashings run underneath coping), perimeter drip edge flashings, roof-mounted/curb mounted expansion joints, one-way vents, and all roof flashing materials down to substrate. Field of roof to remain. Remove all existing contaminants, dust, dirt, and debris from existing roof system. Repair any blisters or deficiencies in existing roof prior to roof construction.

b. Remove metal roofing panels on North side of building down to structural substrate. Existing cast in reglet on either side of metal roofing is to remain in place.

c. Parapet Wall Conditions: Remove existing counter-flashing and set aside for re-installation post membrane roof installation.

1) Parapet walls with modified roofing installed up and over wall, underneath coping cap are to receive new membrane flashings up and over wall. Install new coping cap to match the existing color, profile, and dimensions of the coping it replaced.

d. Fasten ¼” gypsum coverboard over existing field membrane roofing and where metal roofing was removed.

e. Install 2-ply modified bitumen roof system.

f. Install new-PVC field fabricated expansion joint at all locations where roof mounted/curb mounted expansion joints are located.

g. Install new walk pads to and from rooftop access points and mechanical equipment.

1) Include 100 lineal feet of walk pad in base bid.

h. Line Items:

1) Provide line item for lower counter flashing replacement on a linear foot basis.

4. Building 9A

a. Remove all roof flashing materials and metal coping down to substrate. Field of roof to remain. Remove all existing contaminants, dust, dirt, and debris from existing roof system. Repair any blisters or deficiencies in existing roof prior to roof construction.

b. Fasten ¼” gypsum coverboard over existing field membrane roofing.

c. Install 2-ply modified bitumen roof system.

d. Overflow drains are to be flashed with manufacturer approved liquid flashing detail.

e. Install new walk pads to and from rooftop access points and mechanical equipment.

1) Include 100 lineal feet of walk pad in base bid.

f. Remove and set aside existing lower counterflashing metal aside for reinstallation.

Install flashing membrane underneath cast in Reglet, and re-install counter flashing.

a) Line Item: Provide line item for lower counter flashing replacement on a linear foot basis.

5. Building 69

a. Remove walk pads, pitch pockets, and all roof flashing materials down to substrate.

Field of roof to remain. Remove all existing contaminants, dust, dirt, and debris from

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07 52 00 - 3 existing roof system. Repair any blisters or deficiencies in existing roof prior to roof construction. Remove existing counter-flashing and set aside for re-installation.

b. Fasten ¼” gypsum coverboard over existing field membrane roofing.

c. Install 2-ply modified bitumen roof system.

d. Install new walk pads to and from rooftop access points and mechanical equipment.

1) Include 100 lineal feet of walk pad in base bid.

e. All insulated pipes must have insulation removed in order to flash directly to the substrate. Replace with new pipe insulation to return to original condition.

f. Encapsulate equipment curbs with roofing membrane, lift units as needed. Units are to be set back down on top of protection sheet and wet set-in sealant per manufacturer recommendations.

g. Clean, prepare, and coat galvanized duct work with acrylic coating at 3.0 gallons per square total, achieved in two (2) cross-hatched coats. All seams in sheet metal are to be three-coursed with acrylic mastic and mesh.

h. Provide new Pre-fabricated Pelican hood where multiple flex line conduits are present. The flex lines should be ran with enough slack to form an upside “U” shape before entering the Pelican hood. The pelican hood should be flashed using manufacturer’s liquid flashing membrane for integration into the warranty.

i. Alternates & Line Items:

1) Line Item: Provide line item for lower counter flashing replacement on a linear foot basis.

2) Alternate: Encapsulate equipment pad isolator mounts in manufacturer approved liquid flashing. Liquid flashing is to encapsulate the isolator base plate prior to setting the top portion of the plate back into position.

1.2 REFERENCES

A. Current Edition of: Identified reference requirements as put forth by the project specification.

1. State & Local Building Code

2. International Building Code (IBC)

3. American Society of Testing Materials (ASTM)

4. National Roofing Contractors Association (NRCA)

1.3 SUBMITTALS

A. Literature: Copies of current relevant information pertaining to the primary components to be used in the roof system including but not limited to:

1. Specifications

2. Roofing Manufacturer’s Sample Warranty

3. Applicator’s Warranty

4. Product Data Sheets

5. Safety Data Sheets

6. FM/UL listings/approvals

B. Samples for Verification: Representative samples of primary components to be used in the roof system.

C. Shop Drawings: Include roof plans, elevations, sections, details, and attachments to other work, including:

1. Base flashings and membrane terminations.

2. Tapered insulation, including slopes.

3. Roof plan showing orientation of roof deck, orientation of roofing membrane, patterns for insulation attachment, location of expansion joints, and membrane fastening spacing.

4. Fastening patterns for corner, perimeter, and field-of-roof locations.

D. Submittals of Equals Submit proposed equals to be considered for use on this project no less than ten (10) days prior to bid date. Proposed roof systems which have been reviewed and accepted will be

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07 52 00 - 4 listed in an addendum prior to bid date; only then will roof systems be accepted at bidding. All below referenced letters must be original and shall include the following:

1. Two 12 inch x 12 inch membrane samples and two samples of each component to be used in the roofing system.

2. Manufacturer's specification matching the herein specified requirements for all Sub- Sections as described.

3. CRRC rating, meeting or exceeding Title 24 requirements

4. Letter from proposed Roof system manufacturer describing that the polymer make up and reinforcement layers meet the specifications as outlined in 1.4 A and 2.1.

1.4 QUALITY ASSURANCE

A. Manufacturer & Product Qualifications:

1. Demonstrated performance history of producing modified bituminous roof membranes no less, in duration of years, than the warranty duration specified: 20 Years.

2. Manufactured by membrane supplier and not private labeled. Provide a letter on company letterhead, signed by company personnel certifying the roofing components are directly produced by the manufacturer.

3. Manufacturer shall produce documentation indicating a hybrid of SBS and APAO polymers used in the makeup of the ASTM 6163 finish ply as follows:

a. APAO polymer modified layer as the top layer for increased heat aging and durability characteristics

b. SBS polymer modified bottom layer enhancing elongations, elasticity, and cold temperature flexibility.

4. 2-ply modified roof system must include a tri-laminate reinforcement layers in both plys of roofing, consisting of fiberglass and non-woven spun bonded polyester while being classified as an ASTM 6163 membrane.

5. Granulated finish ply must meet or exceed title 24 requirements as it relates to reflectivity.

Coating the finish ply to achieve title 24 compliance will not be permitted.

6. System warranty must not exclude any ponding water and must not require the owner to perform any manufacturer sanctioned maintenance and a condition of warranty continuance.

B. Installer Qualifications:

1. A qualified firm that is authorized by the roofing manufacturer to install all work pertaining to product manufacturer's roof system and that is eligible to receive manufacturer's warranty.

C. Preinstallation Roofing Conference: Conduct conference at Project site.

1. Roofing manufacturer representative, Owner, Architect, Owner's Insurer, Testing and Inspecting Agency representative, Roofing Installer, Deck Installer, and installers whose work interfaces with or affects roofing, including installers of roof accessories and roof-mounted equipment.

2. Review methods and procedures related to roofing installation, including manufacturer's most current requirements.

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

4. Review governing regulations and requirements for insurance and certificates.

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

6. Deviations from the project specifications or the approved shop drawings are not permitted without prior written approval by roofing manufactrer, the owner, the owner’s representative, and the designer.

D. Fire Design:

1. UL 790: CLASS A

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E. Wind Design:

1. System shall meet minimum requirements in accordance of ASCE 7 per code jurisdiction or project documentation, whichever is more stringent.

2. All perimeter edge components furnished must be ES-1 tested.

F. Roof Slope:

1. Positive drainage

1.5 DELIVERY, HANDLING, AND STORAGE

A. Deliver roofing materials to project site in original containers with seals unbroken and labeled with product manufacturer's name or product brand name.

B. Comply with most current product data sheet requirements when handling, storing, protecting, or installing roofing materials. Including, but not limited to, avoiding physical damage, deterioration by sunlight, excessive moisture, or other potentially damaging conditions.

C. Store liquid materials in their original undamaged containers in a clean, dry, protected location;

away from direct sunlight; within the temperature range noted on the product data sheet.

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

1.6 FIELD CONDITIONS

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

B. Material Compatibility: Roofing materials shall be compatible with one another and adjacent materials under conditions of service and application required and confirmed by roofing manufacturer.

1.7 WARRANTY

A. Manufacturer’s Warranty: Roofing manufacturer warrants to the owner the specified warranty for the specified warranty period as long as the roofing is installed according to manufacturer’s minimum requirements by an authorized applicator. The warranty must be non-prorated and must not exclude coverage due to ponding water. The warranty must include the replacement of materials furnished by the roofing manufacturer as a result of defective manufacturing or installation. The warranty includes returning the roof to a watertight condition.

1. 20 Year System Warranty

a. System Warranty shall include metal coping and drip-edge components.

B. Applicator’s Warranty: Signed by installing applicator, covering the work of a System Warranty, including all components of roofing system installation such as membrane roofing, base flashing, roof insulation, fasteners, cover boards, vapor retarders, expansion joints, and walkway products, for the following warranty period:

1. 5 Year Warranty Period:

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PART 2 - PRODUCTS

2.1 PERFORMANCE / DESIGN CRITERIA

A. ASTM D6163 - Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements

B. Both membrane layers must include a tri-laminate reinforcement layer consisting of polyester and fiberglass.

C. Membrane system must meet criteria as outlined in section 1.4 A.

2.2 ROOFING MATERIALS

A. Basis of Design:

1. SikaShield by Sika Corporation

a. Finish Ply: HB 79 MG 4MM (Title 24 Compliant Granule Surface)

b. Base Ply: E54 PE 3mm Base Ply

B. Or the following approved roof systems & components:

1. Soprema

a. Finish Ply: ELASTOPHENE FLAM HS FR GR (Title 24 Compliant Granule Surface)

b. Base Ply: ELASTOPHENE FLAM HR 3.0

2. Siplast

a. Finish Ply: PARAFOR 50 TG BW (Title 24 Compliant Granule Surface)

b. Base Ply: PARADIENE 20 PR TG

C. Roof Board and Insulation Attachment Components:

1. Fasteners: manufacturer approved fastener for attachment of board stock to metal and wood roof decks.

2. Securement Plate: manufacturer approved stress plate used in conjunction with appropriate fasteners for attachment of board stock to wood roof decks.

D. Roof Board:

1. DensDeck Prime: 1/4” thickness

E. Insulation, where applicable:

1. Flat Rigid Insulation Panels:

a. Polyisocyanurate (fiber reinforced felt facer)

1) ASTM C1289 Type II, Class 1, Grade 2 (20 psi)

2) LTTR 19 achieved in two (2) layers

2. Tapered Rigid Insulation Panels:

a. Tapered Polyisocyanurate Insulation

1) ASTM C1289 Type II, Class 1, Grade 2 (20 psi)

2) Primary slope: pre-fabricated panels achieving double the primary slope for crickets.

F. Flashing Materials:

1. Membrane Flashing System:

a. Manufacturer’s standard 2 ply flashing membrane system

2. Liquid Flashing System & Accessories:

a. Liquid flashing resin: manufacturer’s standard single or dual component, fabric reinforced, resinous flashing systems.

1) Color: White

G. Miscellaneous Materials:

a. Asphalt Primer: Manufacturer’s standard asphalt primer

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b. Mastic sealant: modified bitumen

c. Walkways: manufacturer recommended, heat welded, contrasting color walk way membrane.

H. Nailers and Blocking:

1. Wood, #2 quality or better, Wolmanized or Osmose treated for fire and rot resistance.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Applicator shall verify that the work done under related sections meets the following conditions:

1. Roof drains and scuppers have been installed properly, or reconditioned, or replaced.

2. Roof curbs, nailers, equipment supports, vents and other roof penetrations are properly secured and prepared to receive new roofing materials.

3. All surfaces are smooth and free of dirt, debris, and incompatible materials.

4. For concrete deck, verify that concrete substrate is dry…