REYNOLDS SCHOOL DISTRICT

2025 HIGH SCHOOL COOLING TOWER/CHILLER PROJECT

REYNOLDS HIGH SCHOOL COOLING TOWER/CHILLER

CM/GC RFP

ADDENDUM #4 RESPONSE TO PROPOSAL QUESTIONS

• Original RFP issued October 30, 2025

• Addendum 1 issued October 31, 2025 on OregonBuys site only. This Addendum changed the Bid Opening Date from "11/10/2025 10:00:00 AM" to "11/25/2025

05:00:00 PM".

• Addendum 2 issued October 31, 2025 on OregonBuys site only. This Addendum changed the Bid Opening Date from "11/25/2025 05:00:00 PM" to "11/25/2025

02:00:00 PM".

• Addendum 3 issued November 12, 2025 on OregonBuys site. This Addendum consisted of a title page 1 page of clarifications, 3 pages of Exhibit A showing the Pre-proposal meeting attendees, and 12 pages Exhibit B, the pre-proposal meeting presentation

OWNER

Reynolds School District 1204 NE 201st Ave Fairview, OR 97024

SINGLE POINT OF CONTACT

Andrew Lent Andrew.lent@otak.com 503-467-8954

PROPOSALS DUE:

November 25, 2025 - 2:00PM – To be submitted electronically via email to Andrew.lent@otak.com mailto:Andrew.lent@otak.com mailto:Andrew.lent@otak.com

Reynolds School District CM/GC RFP Request for Proposal ADDENDUM #04

This Addendum 4 forms a part of the Contract Documents and modifies the original Bidding Documents as noted below.

This Addendum consists of

• A title page

• 1 page of clarifications

• Appendix D which includes 28 pages of project scope narrative and 12 pages of schematic design documents.

• Appendix E – 3 pages of the Reynolds School Boards’ Meeting minutes that include the action item on the procurement exemption for CM/GC

• Appendix G – 9 pages of the Findings of Fact document

• Appendix H – 4 pages of answers to the questions that have been asked by proposers

Clarification regarding Addendums 1 and 2.

Addendums 1 and 2 were only issued on Oregon Buys. Both addendums corrected the due date and time that the RFP responses are due.

Project Narratives for

Reynolds HS Cooling Tower

Replacement Project

Contents

Mechanical and Electrical Basis of Design Narratives

Structural Narrative

Acoustical Narrative

Roof Specification (from 2017 RHS Addition Project)

50% Schematic Design Scope Set

November 18, 2025

APPENDIX D

MEP Engineering | Fire/Life Safety | Lighting Design | Energy Consulting | Building Technologies | Commissioning

Interface Engineering, Inc.

100 SW Main Street, Suite 1600

Portland, OR 97204

TEL 503.382.2266

www.interfaceengineering.com

Basis of Design Reynolds High School Central Plant

Upgrades

2025-1285

Prepared for:

BRIC Architecture Inc.

Prepared by:

Andrew Lasse, PE, LEED AP

Troy Lowell, PE, BECxP

Brandon Volbeda, PE

Reynolds High School Central Plant Upgrades

MEP Engineering | Fire/Life Safety | Lighting Design | Energy Consulting | Building Technologies | Commissioning

Table of Contents Project Description Mechanical Electrical

November 14, 2025

Basis of Design Narrative

Project Description

Building/Project Description

Project Location

Reynolds High School

1698 SW Cherry Park Road, Troutdale, OR

Project Description

This project includes replacement of the Reynolds High School cooling tower, chiller and associated pumps and controls.

The school consists of two main buildings originally constructed in 1976 (Building A and Building B). The buildings are constructed as single stories, while mechanical rooms are positioned at a second-floor level and contain boiler, chiller and cooling tower systems. The total floor area is approximately 303,000 square feet. The Chiller and Cooling tower serve approximately 157,000 square feet of the total area.

Codes and Standards

Systems will be designed in accordance with the latest adopted standards of the following codes:

• Oregon Administrative Rules (OAR)

• Oregon Structural Specialty Code (OSSC)

• Oregon Electrical Specialty Code (OESC, NFPA 70)

• Oregon Fire Code (OFC)

• Oregon Mechanical Specialty Code (OMSC)

• Oregon Plumbing Specialty Code (OPSC)

• Oregon Energy Efficiency Specialty Code (OEESC)

• Municipal ordinances and amendments.

The following reference standards will be used in design:

• ADA - Americans with Disabilities Act - Standard for Accessible Design

• ANSI - American National Standards Institute

• ASCE - American Society of Civil Engineers o ASCE 7, Minimum Design Loads for Buildings and Other Structures

• ASHRAE - American Society of Heating, Refrigerating and Air-Conditioning Engineers

• ASME - American Society of Mechanical Engineers

• ASTM - American Society of Testing and Materials

• AWS - American Welding Society

• FM - FM Global Approval Guide

• IAPMO - International Association of Plumbing and Mechanical Officials

• ICC-ES - International Code Council Evaluation Service

• IES - Illuminating Engineering Society Standards

• NEMA - National Electrical Manufacturers Association

• NFPA - National Fire Protection Association o NFPA 70, as adopted by AHJ, National Electrical Code

• OSHA - Occupational Safety and Health Administration Standards

• UL - Underwriters' Laboratories, Inc.

o UL Online Certifications Directory

Mechanical

Existing Conditions

Cooling Tower

• Existing Cooling Tower: 300-ton Baltimore Aircoil (BAC) VST-300 forced draft, centrifugal fan, open loop system.

• Existing Pumps: Two Lead/Stand-by pumps piped in parallel. Armstrong Model 65-7609, 10 HP motors @ 230/460 3ph. Pumps are base mounted end suction with spring isolated concrete filled inertia bases. Motors are not rated for VFD.

• Existing Cooling Tower Dimensions: 12’-1” W x 9’-0” D x 12’-10” H.

• Cooling Tower Exterior Area-Well: Inside Clear Dimensions – 17’-10” W x 20’-10” D.

• The existing tower does not have any automatic connected chemical treatment system, filter, or basin cleaner.

Chiller

• Existing Chiller: 300-ton McQuay WSC063S37 centrifugal. Set on 4” concrete pad. No spring isolation.

• Existing Pumps: Two Lead/Stand-by pumps piped in parallel. Armstrong Model 4E-4030, 10 HP motors @ 230/460 3ph. Pumps are base mounted end suction with spring isolated concrete filled inertia bases. Motors are not rated for VFD.

o Chiller pumps are also used as boiler system pumps and are connected to the chilled water pipes with a series of electro-pneumatic isolation valves. When outside air temperatures reach below

50 F, chiller shut down and isolation valves close of the chiller loop and open to the heating loop.

The building systems are served by a 4-pipe arrangement (heating Water Supply/Return, and separate Chilled Water Supply/Return).

Controls

• Controls are a series of Siemens APOGEE Automation Digital/Analog Input/Output devices. Current district access is through Insight on their server, networked to Siemens APOGEE Ethernet Micro Server

(in panel near the chiller), to Siemens Modular Equipment Controller panel using Siemens Building

Level Network and Floor Level Network (no BACnet)

Recommendations

Cooling Tower

• New Proposed Cooling Tower: Evapco AT 19-4K11 induced-draft, axial fan open loop tower.

o Dimensions 10’-6” W x 8’-6” D x 13’-8” H.

o Provide with cold basin stainless steel electric immersion heaters with separate thermostat and low water protection device, to maintain +40 F pan water at 0 F ambient temperature.

o Provide cold water basin fitted with schedule 80 PVC sump sweeper piping complete with high-flow eductor nozzles to facilitate basin cleaning.

o Provide external access ladder and service platform.

o Provide Puroflux Filtration System, Model PF-64 pump package.

o Provide Puroflux Controlled Release Chemical Treatment System.

o Provide Restrained Spring Isolator Base, similar to Mason Industries WFSL and SLR restrained isolators, sized for minimum 3-inch static deflection.

o [Alternate Manufacturer: BAC Model S15E-1285-07MN]

• New Condenser Water Circulator Pumps.

o Provide end suction base mounted pumps, Taco Model SFI-Series with VFD.

o Provide 4” concrete housekeeping pad, and concrete filled inertial base with springs with 1- to 2-inch static deflection such as Mason SLF, Kinetics FDS, or equal. Piping connected to vibration isolated equipment should have comparable isolation for the first 50 feet from the equipment.

o [Alternate Manufacturer: Armstrong]

Chiller

• York YMC2-S1055BAS, 300 ton, Centrifugal, VFD Starter, R-513A mag bearing.

o Provide 4” concrete housekeeping pad, Restrained Spring isolators, Mason SLR or iSAT, field welded to the bottom of the chiller end sheets. The chiller can be point loaded at its 4 corners, sized for 1- to 2-inch static deflection. Piping connected to vibration isolated equipment should have comparable isolation for the first 50 feet from the equipment.

o [Alternate Manufacturer: McQuay]

• New Chilled Water Circulator Pumps.

o Provide end suction base mounted pumps, Taco Model SFI-Series with VFD.

o Provide 4” concrete housekeeping pad, and concrete filled inertial base with springs with 1- to 2-inch static deflection such as Mason SLF, Kinetics FDS, or equal.

o [Alternate Manufacturer: Armstrong]

Controls

• The district’s preferred building controller is Automated Logic. This project may or may not include replacement of existing Siemens Modular Equipment with new Automated Logic system to control new Tower, Chiller, Pumps (with VFDs), Chemical Treatment, and Changeover Valve Sequencing.

Electrical

Existing Conditions

Cooling Tower

• The Existing cooling tower is fed from motor control center MMC-1B 480Y/277V located in the boiler room.

• The size of the overcurrent protection fuses could not be observed while on site.

• A 60A fused disconnect serving the equipment is located adjacent to the cooling tower.

• There are two 10 HP pumps that serve the cooling tower system.

o These two pumps are fed power from the local motor control center MCC-1B adjacent to the pumps.

o The size of the overcurrent protection fuses could not be observed while on site.

Chiller

• The existing chiller is fed from a 480Y/277V 1600A fused distribution panelboard MDP located on the upper level of the electrical room just outside of the boiler room.

• The existing overcurrent protective device is a fused switch sized at 150 amp fuse in a 200 amp switch.

• The chiller includes a direct connection with a disconnect switch that is integral to the chiller.

• There are two 10 HP pumps that serve the chiller water loop.

o These two pumps are fed power from the local motor control center MCC-1B adjacent to the pumps.

o The size of the overcurrent protection fuses could not be observed while on site.

Recommendations

Boiler Room

• New LED lighting is recommended to be provided to replace existing fluorescent lights.

o In the state of Oregon fluorescent lamps are being phased out such that you will not be able to purchase replacement lamps in the future.

o Some of the lights may need to be removed during the HVAC duct work modifications. This would be a good opportunity to replace them.

• A new chemical treatment system is expected to be provided. A 120V circuit will be provided to serve the chemical treatment system.

• A new control system is expected to be provided. A 120V circuit will be provided to serve the control system.

Cooling Tower

• A new local fused disconnect shall be provided to replace the existing. The estimated size is 60 amps.

• The fuses in the MCC shall be replaced. The estimated size is 60 amps.

• Both pumps will be replaced and provided with local VFDs.

o VFDs will be furnished by division 23, installed by division 26.

o VFD cable shall be provided between the VFDs and the pumps.

o Line reactors shall be provided on the supply side of the VFDs to mitigate harmonics.

o New fuses shall be provided in the motor control center. The estimated size is 60 amps.

o Any motor control components in the MCC shall be demolished.

o The MCC bucket serving the pumps shall include overcurrent protection and disconnect switch only.

Chiller

• The fuses in distribution panelboard MDP shall be replaced. The estimated size is 150 amps.

• The new chiller is assumed to have a single point connection with an integral disconnect switch.

• Both pumps will be replaced and provided with local VFDs.

o VFDs will be furnished by division 23, installed by division 26.

o VFD cable shall be provided between the VFDs and the pumps.

o Line reactors shall be provided on the supply side of the VFDs to mitigate harmonics.

o New fuses shall be provided in the motor control center. The estimated size is 60 amps.

o Any motor control components in the MCC shall be demolished.

o The MCC bucket serving the pumps shall include overcurrent protection and disconnect switch only.

Boulder

Los Angeles

Portland

San Francisco

Seattle holmes.us

Australia Netherlands New Zealand USA

Reynolds High School – Cooling Tower and Chiller Replacement

To: Dan Hess Project: 25494.10

Company: BRIC Architecture

From: Evan Speer

Date: November 14, 2025

Subject: Structural Basis of Design & Narrative

This Structural Basis of Design (BoD) is prepared for BRIC Architecture for the project at 1698 SW Cherry Park

Road in Troutdale, Oregon and shall be read in conjunction with the Architectural drawings, prepared by

Architect, dated 11/14/2025 and Preliminary Structural Layout drawings prepared by Holmes, dated 11/14/2025

(1 sheet)

The project consists of the replacement of an existing chiller and rooftop cooling tower at Reynolds High

School in the athletic building and will be utilizing a CMGC delivery method. The chiller is located within a mechanical mezzanine and the cooling tower is located on the same mezzanine level but is exterior in a roof well. The existing mezzanine is a concrete pan joist floor system.

The structural scope includes preparation of engineering and design documentation services for the required for the new chiller and cooling tower, along with analysis of structural implications and recommendations for removal of the existing chiller to allow for crane access, and installation of the new chiller. We understand these modifications to be limited to only these two pieces of equipment.

The structural engineering scope encompasses comprehensive analysis, design documentation, and construction support services for the replacement of existing chiller and cooling tower equipment. This includes preparation of all necessary engineering calculations, structural drawings, specifications, and construction details required for permit submittal and contractor implementation.

This memorandum describes the structural design criteria that Holmes will be using for seismic, wind and gravity design of the project. A narrative of the proposed primary structural scope and assumptions are included to inform contractor cost estimates, in conjunction with the above referenced drawings.

EQUIPMENT REMOVAL AND DEMOLITION

The work involves structural assessment and recommendations for the removal of existing chiller equipment to facilitate crane access for the new installation. Selective demolition of existing non-structural wood-framed walls will be required to create adequate clearance for equipment movement from its current location to a crane-accessible pickup point adjacent to the cooling tower location. The structural engineer will identify specific knockout locations on plan for remaining wall sections as necessary to maintain structural integrity of the building envelope. It is anticipated that new wood-framed partition walls will be installed after installation of the new chiller.

Project: 25494.10

NEW EQUIPMENT SUPPORT SYSTEMS

The new cooling tower will be supported on a structural steel support system with seismic spring isolators. This consists of one steel frame directly beneath the perimeter of the cooling tower, comprised of wide flange or channel steel beams. This frame will sit atop seismic spring isolators set atop a lower steel frame comprised of wide-channel steel beams. The design will include steel pipe column supports below the lower frame with anchorage into the existing concrete slab. These beams will be designed to transfer equipment loads, including operating weight, seismic forces, and vibration loads, to the existing concrete slab below. This will likely include epoxy bolt or wedge anchors into the existing concrete slab, with non-shrink grout for full bearing. The exterior steel system will require corrosion protection requirements due to exterior exposure.

For the new chiller unit, a 4” thick reinforced concrete housekeeping pad will be provided atop the existing concrete slab at the pumps, with epoxy dowels into the existing concrete. The chiller unit and pumps will then be fastened to the concrete with mechanical anchorage to resist lateral seismic loads. The design will address load path continuity from equipment through supports to the building's lateral force-resisting system.

Due to the concentrated weight of the chiller during relocation, temporary steel spreader plates will be required along the equipment's travel path. These plates will distribute point loads across a larger area of the existing mezzanine floor framing, preventing overstress of individual structural members.

Where the chiller movement path runs parallel to the existing mezzanine floor joists (perpendicular to the joist's strong axis), temporary shoring will be required. This shoring system will extend from the underside of the mezzanine floor down to the slab-on-grade below to provide supplemental vertical support during equipment rigging operations.

This structural scope is limited exclusively to the modifications required for the chiller and cooling tower replacement. Any additional structural work beyond these two pieces of equipment is excluded from this scope of services.

Basis of Design

1 SEISMIC DESIGN

Seismic design will be undertaken in accordance with the 2022 Oregon Structural Specialty Code (OSSC).

These criteria are outlined in Table 1.

Table 1 – Seismic Design Parameters

Parameter Value

Seismic Importance Factor, Ip 1.0

Short period acceleration parameter, SDS 0.70 g

1-second period acceleration parameter, SD1 0.47 g

Seismic Risk Category III

Site Class D

Seismic Design Category D Site Class determined from reference to 2021 Seismic Upgrades project at this address¸ Chapter 20 of ASCE 7-22

2 WIND DESIGN

Wind design loads will be determined in accordance with the 2022 OSSC. Site and building specific wind loads will be determined using ASCE 7-22 as referenced by the 2022 OSSC.

The basic wind speed for this site is: V = 105 mph

3 LIVE LOADS

Live Loads for the design of the gravity systems (floor slabs and roof framing) are in accordance with Table 2.

Table 2 – Live Load Allowances

Location Uniform

(PSF)

Concentrated (lbs)

Existing Mezzanine Floor: 100 (assumed) -

Existing Mezzanine Floor Exterior (at Cooling

Tower):

100 (assumed) -

Existing Roof: Typical other areas 20 300

Existing Cooling Tower Weight - 13,000 lbs (12’-0”x9’-0” footprint)

Existing Chiller Weight - 16,000 lbs (13’-0”x4’-3” footprint)

Proposed Evapco AT 19-4K11 Cooling Tower - 8,820 lbs (10’-6”x8’-6” footprint)

Proposed York YMC2-S1055BAS Chiller 20 12,612 lbs (10’-0”x5’-2” footprint)

Structural Components Narrative

4 EXISTING FRAMING AT MECHANICAL MEZZANINE LOCATION

4.1 Ground floor (Level 1)

Foundations consist of 5” thick mild-steel reinforced slab on-grade and mild steel reinforced strip footings below existing walls

Walls consist of mild-steel reinforced concrete bearing walls

4.2 Mezzanine

The existing mezzanine floor slab consists of a minimum 3-1/2” thick mild-steel reinforced concrete slab supported on 14” deep 2-way mild-steel reinforced concrete pan joists, with varying thicknesses.

The mezzanine floor slab system is in an interior space at the chiller location, and is an exterior exposed slab at the cooling tower location.

Walls consist of tube steel beams and columns or glue laminated timber beams and columns bearing directly atop the reinforced concrete floor system and stub walls.

4.3 Roof level

The roof framing consists of plywood sheathing and 2x sawn lumber joists supported by glue laminated timber beams above the enclosed portion of the mezzanine level.

4.4 Material properties and allowable stresses

Structural Steel

All Steel plates, gussets and tabs are ASTM A36 (Fy = 36 ksi, U.O.N.).

Wide Flange Beams & Columns are ASTM A992 (Fy = 50 ksi).

Steel pipe is ASTM A501, or ASTM A53 (Fy = 36 ksi).

Structural steel tubing or HSS sections are ASTM A500 (Fy = 46 ksi).

All metal studs, track, etc. is ASTM A611, Grade C

Concrete, f’c=4000 psi for all normal weight concrete.

Rebar: 60 ksi

Bolts: A325 typical U.O.N. A307/A36 for anchor bolts and timber connectors.

Wood Framing –

All wood is DF#1 U.O.N. (Fb = 1000 psi, Fv = 180 psi, E = 1700000 psi), studs and plates are construction grade.

All PSLs are grade 2.0E (Fb = 2900 psi, Fv = 290 psi, E = 2000000 psi).

All LVLs are grade 1.9E (Fb = 2600 psi, Fv = 285 psi, E = 1900000 psi).

All Glue laminated timber is Doug Fir 24F-V8 (Fb = 2400 psi, Fv = 265 psi, E = 1800000 psi)

Plywood grade, thickness. CDX or Type 2-M-W OSB

Plywood nailing schedule and diaphragm, shear wall design values.

4.5 Design Values for Fabricated Items Used

Simpson Wedge-All Expansion bolts, ICBO ESR-1396.

Epoxy anchors use Simpson SET epoxy, ICBO Report ESR-1772.

4.6 Non-Shrink Grout

Non-shrink grout shall achieve a minimum compressive strength at 28 days (f’c) of 7,000 psi.

Non-shrink grout shall comply with one of the following:

Dry pack non-shrink grout shall be Euclid Chemical Company’s “euco-ns”, l&m crystex, master builders’ “Masterflow 713”, Simpson “FX-228”, Five Star grout, or Sikagrout-212.

Where high fluidity or increased placing time is required, use Euclid Chemical Company’s

“Euco hi-flow grout”, Master Builders’ “Masterflow 928”, Or Sikagrout-212.

Comply with manufacturer’s installation recommendations and requirements

5 MISCELLANEOUS

The following items are not included on the drawings. Suitable allowances shall be made for these items. The list is indicative only and not exhaustive. See also architectural drawings.

Stairs and secondary steelwork supporting stairs and associated slab openings.

Bracing and anchorage of nonstructural components not specifically indicated, including partitions, ceilings, and MEP equipment.

Architectural components such as canopies, screens, etc. not reflected on the structural drawings.

Rooftop enclosures for MEP shafts.

Cleaning davits, tie backs, and support structures for building maintenance units.

Site structures such as trellises, planter/site walls, trash enclosures, etc.

Sincerely, HOLMES US

Evan Speer

Senior Engineer II

Jennifer Eggers, S.E.

Principal

206-378-0569 greenbusch.com Seattle | Vancouver | Spokane

Memorandum

DATE: November 13, 2025

TO: Dan Hess, AIA, LEED AP – BRIC Architecture, Inc.

FROM: Steve Robinson, INCE

RE:

Reynolds High School – Chiller and Cooling Tower Replacement High Level Pre-Design Acoustical Narrative

This memorandum provides high-level acoustical comments for inclusion in the Pre-Design Narrative for the Chiller and Cooling Tower Replacement project at Reynolds High School in Troutdale, Oregon.

ACOUSTICS

Airborne Sound Isolation

The existing cooling tower is in a mechanical well and the chiller is in a mechanical mezzanine. Our understanding is that the existing equipment has not generated any acoustical issues inside or outside the building. Sensitive interior adjacencies are limited to physical fitness education spaces. Upgrades to the existing separating constructions are unlikely to be necessary but could potentially include additional layers of drywall with or without resilient attachment.

The mechanical well and surrounding buildings block line-of-sight to the cooling tower from ground-level outside the building. Based on preliminary equipment sound data, noise levels are anticipated to be below typical recommended criteria for outdoor circulation spaces without any need for mitigation.

Vibration Isolation

The following recommendations and guidelines are intended to be preliminary based on our understanding of the proposed equipment and would need to be coordinated as the design develops:

• Support cooling tower on restrained springs sized for minimum 3-inch static deflection such as Mason SLR, Kinetics FLS, or equal.

• Support chiller on restrained springs sized for 1- to 2-inch static deflection such as Mason SLR, Kinetics FLS, or equal.

• Associated pumps may require concrete inertia bases supported on open springs with 1- to 2-inch static deflection such as Mason SLF, Kinetics FDS, or equal.

• Piping connected to vibration isolated equipment should have comparable isolation for the first 50 feet from the equipment.

• Deflection of the supporting structure under the weight of the equipment should be limited to 0.2 inches.

SECTION 07 51 13

HOT-APPLIED BUILT-UP ASPHALT ROOFING

Project No. 15065 Reynolds HS Addition & Remodel 07 51 13 - 1 June 2017 Reynolds School District #7 Printed 7/5/2017 Bid Package No. 004

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Hot-applied built-up asphalt roofing system on wood deck, including but not limited to:

1. Roof insulation.

2. Roof membrane and membrane base flashings.

3. Roof surfacing consisting of aggregate surfacing.

1.02 RELATED REQUIREMENTS

A. Section 06 10 00 - Rough Carpentry: Wood nailers, wood cants, curbs, and blocking.

B. Section 07 62 00 - Sheet Metal Flashing and Trim: Metal roof penetration flashings, flashings, and counterflashings.

C. Section 07 95 13 - Expansion Joint Cover Assemblies: Manufactured roof expansion-joint assemblies.

D. Section 07 92 00 - Joint Sealants: Joint sealants, joint fillers, and joint preparation.

E. Division 22 for roof drains.

1.03 REFERENCE STANDARDS

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

B. ASTM C1289 - Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board.

C. ASTM C203 - Standard Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation.

D. ASTM C208 - Standard Specification for Cellulosic Fiber Insulating Board.

E. ASTM D1079 - Standard Terminology Relating to Roofing and Waterproofing.

F. ASTM D146/D146M - Standard Test Methods for Sampling and Testing Bitumen-Saturated Felts and Woven Fabrics for Roofing and Waterproofing.

G. ASTM D1621 - Standard Test Method for Compressive Properties Of Rigid Cellular Plastics.

H. ASTM D1863/D1863M - Standard Specification for Mineral Aggregate Used on Built-Up Roofs.

I. ASTM D2136 - Coated Fabrics - Low-Temperature Bend Test.

J. ASTM D2178/D2178M - Standard Specification for Asphalt Glass Felt Used in Roofing and Waterproofing.

K. ASTM D2824/D2824M - Standard Specification for Aluminum-Pigmented Asphalt Roof Coatings, Nonfibered, Asbestos Fibered, and Fibered without Asbestos.

L. ASTM D3111 - Standard Test Method for Flexibility Determination of Hot-Melt Adhesives by Mandrel Bend Test Method.

M. ASTM D312/D312M - Standard Specification for Asphalt Used in Roofing.

N. ASTM D36 - Standard Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus).

O. ASTM D3746/D3746M - Standard Test Method for Impact Resistance of Bituminous Roofing Systems.

P. ASTM D3960 - Standard Practice for Determining Volatile Organic Compound (VOC) Content of Paints and Related Coatings.

Q. ASTM D41/D41M - Standard Specification for Asphalt Primer Used in Roofing, Dampproofing, and Waterproofing.

R. ASTM D412 - Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers-- Tension.

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASCE%207-10 http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20C1289 http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20C203 http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20C208 http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D1079 http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D1621 http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D1863/D1863M https://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D2136 http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D2178/D2178M http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D2824/D2824M http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D312/D312M http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D3960 http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D41/D41M http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D412

Project No. 15065 Reynolds HS Addition & Remodel 07 51 13 - 2

S. ASTM D4272/D4272M - Standard Test Method for Total Energy Impact of Plastic Films by Dart Drop.

T. ASTM D4586/D4586M - Standard Specification for Asphalt Roof Cement, Asbestos-Free.

U. ASTM D4601/D4601M - Standard Specification for Asphalt-Coated Glass Fiber Base Sheet Used in Roofing.

V. ASTM D5/D5M - Standard Test Method for Penetration of Bituminous Materials.

W. ASTM D5147/D5147M - Standard Test Methods for Sampling and Testing Modified Bituminous Sheet Material.

X. ASTM D751 - Standard Test Methods for Coated Fabrics.

Y. ASTM D92 - Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester.

Z. ASTM E108 - Standard Test Methods for Fire Tests of Roof Coverings.

AA. ASTM E119 - Standard Test Methods for Fire Tests of Building Construction and Materials.

AB. ASTM G152 - Standard Practice for Operating Open Flame Carbon Arc Light Apparatus for Exposure on Nonmetallic Materials.

AC. ASTM G154 - Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials.

AD. ASTM G155 - Standard Practice for Operating Xenon Arc Light Apparatus for Exposure of Nonmetallic Materials.

AE. CRRC-1 - Standard; Cool Roofs Rating Council.

AF. NRCA ML104 - The NRCA Roofing and Waterproofing Manual.

AG. SMACNA (ASMM) - Architectural Sheet Metal Manual.

AH. SPRI ES-1 - Wind Design Standard for Edge Systems Used with Low Slope Roofing Systems.

1.04 DEFINITIONS

A. Roofing Terminology: See ASTM D1079 and glossary of NRCA's "The NRCA Roofing and Waterproofing Manual" for definition of terms related to built-up roofing.

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

1.05 SUBMITTALS

A. Product Data: For each type of product indicated.

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

1. Base flashings and built-up terminations.

a. Indicate details meet requirements of NRCA required by this Section.

b. Tapered insulation, including slopes.

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

d. Insulation fastening patterns for corner, perimeter, and field-of-roof locations.

C. Samples for Verification: For the following products:

1. 8-by-10-inch square of built-up roofing materials, including base sheet ply sheet and flashing sheet, of color specified.

2. 8-by-10-inch square of roof insulation.

3. 3 lb of aggregate surfacing material in gradation and color indicated.

4. Walkway pads.

5. Six insulation fasteners of each type, length, and finish.

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D4586/D4586M http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D4601 http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D751 http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D92 http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20E108 http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20E119 http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20G155 http://www.coolroofs.org/ https://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=SMACNA%20ARCHITECTURAL%20MANU http://www.spri.org/ http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASTM%20D1079

Project No. 15065 Reynolds HS Addition & Remodel 07 51 13 - 3

D. Contractor's Product Certificate: Submit notarized certificate, indicating products intended for Work of this Section, including product names and numbers and manufacturers’ names, with statement indicating that products to be provided meet the requirements of the Contract Documents.

E. Qualification Data: For Installer, Manufacturer, and Roofing Inspector. Include letter from Manufacturer written for this Project indicating approval.

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

F. Product Test Reports: Based on evaluation of comprehensive tests performed by manufacturer and witnessed by a qualified testing agency, for components of built-up roofing.

G. Warranties: Unexecuted sample copies of special warranties.

H. Inspection Reports: Daily reports of Roofing Inspector. Include weather conditions, description of work performed, tests performed, defective work observed, and corrective actions taken to correct defective work.

I. Maintenance Data: To include in maintenance manuals.

1.06 QUALITY ASSURANCE

A. Installer Qualifications: An employer, in business under the same name and license number for a minimum of ten consecutive years, of workers trained and certified by manufacturer, including a full-time on-site supervisor with a minimum of five years' experience installing similar work of scope and size, able to communicate verbally with Contractor, Architect, and employees, and qualified by the manufacturer to furnish warranty of type specified.

B. Manufacturer Qualifications: Approved Manufacturer with minimum five years' experience in manufacture of specified products in successful use in similar applications, and able to furnish warranty with provisions matching specified requirements.

1. Approval of Comparable Products: Submit the following in accordance with project substitution requirements, within time allowed for substitution review:

a. Product data, including certified independent test data indicating compliance with requirements.

b. Samples of each component.

c. Sample submittal from similar project.

d. Project references: Minimum of five installations of specified products not less than five years old, with Owner and Architect contact information.

e. Sample warranty.

f. Substitutions following award of contract are not allowed except as stipulated in Division 01 General Requirements.

g. Approved manufacturers must meet separate requirements of Submittals Article.

C. Roofing Inspector Qualifications: A technical representative of manufacturer not engaged in the sale of products and experienced in the installation and maintenance of the specified roofing system, qualified to perform roofing observation and inspection specified in Field Quality Control Article, to determine Installer’s compliance with the requirements of this Project, and approved by the manufacturer to issue warranty certification. The Roofing Inspector shall be one of the following:

1. An authorized full-time technical employee of the manufacturer.

2. An independent party certified as a Registered Roof Observer by the Roof Consultants Institute, retained by the Contractor or the Manufacturer and approved by the Manufacturer.

D. Source Limitations: Obtain roofing system components from or approved in writing by roofing system manufacturer.

1.07 PREINSTALLATION CONFERENCE

A. Preinstallation Roofing Meeting: Conduct conference at Project site.

1. Meet with Owner, Architect, Owner's insurer if applicable, testing and inspecting agency representative, roofing Installer, roofing manufacturer's representative, deck Installer, and

Project No. 15065 Reynolds HS Addition & Remodel 07 51 13 - 4 installers whose work interfaces with or affects roofing, including installers of roof accessories and roof-mounted equipment.

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

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

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

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

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

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

8. Review temporary protection requirements for roofing during and after installation.

9. Review roof observation and repair procedures after roofing installation.

1.08 DELIVERY, STORAGE, AND HANDLING

A. Deliver roofing materials to Project site in original containers with seals unbroken and labeled with manufacturer's name, product brand name and type, date of manufacture, approval or listing agency markings, and directions for storing and mixing with other components.

B. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by roofing manufacturer. Protect stored liquid material from direct sunlight.

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

C. Protect roof insulation materials from physical damage and from deterioration by sunlight, moisture, soiling, and other sources. Store in a dry location. Comply with insulation manufacturer's written instructions for handling, storing, and protecting during installation.

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

1.09 PROJECT CONDITIONS

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

B. Daily Protection: Coordinate installation of roofing so insulation and other components of roofing system not permanently exposed are not subjected to precipitation or left uncovered at the end of the workday or when rain is forecast.

1.10 WARRANTY

A. Warranty, General: Warranties specified shall be in addition to, and run concurrent with, other warranties required by the Contract Documents. Manufacturer's disclaimers and limitations on product warranties do not relieve Contractor of obligations under requirements of the Contract Documents.

B. Manufacturer's Warranty: Manufacturer's standard or customized form in which manufacturer agrees to repair or replace components of built-up roofing that fail in materials or workmanship within specified warranty period. Failure includes roof leaks.

1. Special warranty includes roofing membrane, base flashings, roofing membrane accessories, fasteners, roof insulation, cover boards, substrate board, walkway products and other components of built-up roofing.

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

C. Manufacturer Inspection and Preventive Maintenance Requirement: By manufacturer's technical representative, to report maintenance responsibilities to Owner necessary for preservation of Owner's warranty rights. The cost of manufacturer's annual inspections and

Project No. 15065 Reynolds HS Addition & Remodel 07 51 13 - 5 preventive maintenance is included in the Contract Sum. Inspections to occur in Years 2, 5, and 10 following completion.

D. Installer's Warranty: Submit roofing Installer's warranty, on warranty form at end of this Section, signed by Installer, covering the Work of this Section and related Sections indicated above, including all components of built-up roofing such as built-up roofing membrane, base flashing, roof insulation, fasteners, cover boards, substrate boards, and walkway products, for the following warranty period:

1. Warranty Period: Two years from Date of Substantial Completion.

E. Extended Roof System Warranty: Warranties specified in this Section include the following components and systems specified in other sections supplied by the roofing system Manufacturer, and installed by the roofing system Installer:

1. Sheet metal flashing and trim, including roof penetration flashings.

2. Manufactured copings, roof edge, counterflashings, and reglets.

3. Roof curbs, hatches, and penetration flashings.

4. Roof and parapet expansion joint assemblies.

PART 2 PRODUCTS

2.01 MANUFACTURERS

A. Tremco, Incorporated. (Basis-of-Design)

B. Substitutions: See Section 01 60 66 - Product Requirements.

C. Source Limitations: Obtain components for roofing system from same manufacturer as membrane roofing or manufacturer approved by membrane roofing manufacturer.

2.02 PERFORMANCE REQUIREMENTS

A. General Performance: Roofing shall withstand exposure to weather without failure or leaks due to defective manufacture or installation.

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

2. Impact Resistance: Roofing system shall resist impact damage when tested according to ASTM D3746/D3746M or ASTM D4272/D4272M.

B. Material Compatibility: Provide roofing materials that are compatible with one another under conditions of service and application required, as demonstrated by built-up roofing manufacturer based on testing and field experience.

C. Roofing System Design: Provide built-up roofing system that is identical to systems that have been successfully tested by a qualified testing and inspecting agency to resist uplift pressure calculated according to ASCE 7.

1. Oregon Structural Specialty Code (OSSC) Basic Wind Speed Design Criteria: The completed roofing system shall meet or exceed OSSC Basic Wind Speed Design Criteria of 135 mph, 3 second gust durations, Exposure B, urban and suburban areas, OSSC uplift pressures shall be calculated in accordance with ASCE 7, but not less than the following:

a. Field: 38.5 psf.

b. Perimeter: 70.5 psf.

c. Corner: 102.5 psf.

D. SPRI Wind Design Standard: Manufacture and install copings roof-edge flashings tested according to SPRI ES-1, except the basic wind speed of 135 mph, 2 second gust, Exposure C.

E. Flashings and Fastening: Comply with requirements of Section 07 62 00 - Sheet Metal Flashing and Trim. Provide base flashings, perimeter flashings, detail flashings and component materials and installation techniques that comply with requirements and recommendations of the following:

1. NRCA ML104, NRCA Roofing Manual for construction details and recommendations.

2. SMACNA (ASMM), SMACNA Architectural Sheet Metal Manual for construction details.

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Project No. 15065 Reynolds HS Addition & Remodel 07 51 13 - 6

F. Exterior Fire-Test Exposure: ASTM E108, Class A; for application and roof slopes indicated, as determined by testing identical membrane roofing materials by a qualified testing agency.

Materials shall be identified with appropriate markings of applicable testing agency.

G. Fire-Resistance Ratings: Where indicated, provide fire-resistance-rated roof assemblies identical to those of assemblies tested for fire resistance per ASTM E119 by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

2.03 BASE-SHEET MATERIALS

A. Sheathing Paper: Red-rosin type, minimum 3 lb/100 sq. ft.

B. Base Sheet: ASTM D4601/D4601M, Type II asphalt-coated, SBS-modified fiberglass/fiberglass/ polyester reinforced sheet dusted with fine mineral surfacing on both sides.

1. Basis of Design Product: Tremco, BURmastic Modified Composite Ply HT.

2. Tensile Strength, minimum, ASTM D5147/D5147M: machine direction, 165 lbf/in; cross machine direction, 150 lbf/in.

3. Tear Strength, minimum, ASTM D5147/D5147M: machine direction, 210 lbf; cross machine direction, 185 lbf.

4. Elongation at 77 deg. F, minimum, ASTM D5147/D5147M: machine direction, 6 percent;

cross machine direction, 6 percent.

5. Thickness, minimum, ASTM D146/D146M: 0.055 inch.

2.04 ROOFING MEMBRANE PLIES

A. Ply Sheet: ASTM D2178/D2178M, Type IV, asphalt-impregnated, glass-fiber felt.

1. Basis of Design Product: Tremco, THERMglass Premium Type VI.

2. Net Dry Mass, ASTM D146/D146M: 390 g/sq. m.

3. Breaking Strength, minimum, ASTM D146/D146M: machine direction, 70 lbf/in; cross machine direction, 60 lbf/in.

2.05 ROOFING FLOOD COAT

A. Flood Coating, Low-VOC: Water-based, low-VOC, cold-applied restorative top pour and aggregate adhesive specially formulated for compatibility with asphalt and coal tar roofing membranes and flashings.

1. Basis of Design Product: Tremco, ECOLastic.

2. Volatile Organic Compounds (VOC), maximum, ASTM D3960: 75 g/L.

2.06 BASE FLASHING SHEET MATERIALS

A. Elastomeric Flashing Sheet: Elastomeric, polyester-reinforced sheet with EPDM and SBR thermoset elastomers.

1. Basis of Design Product: Tremco, TRA Elastomeric Sheeting.

2. Breaking Strength, minimum, ASTM D751: machine direction 350 lbf; cross machine direction 300 lbf.

3. Tear Strength, minimum, ASTM D751: machine direction 77 lbf; cross machine direction 77 lbf.

4. Elongation at Failure: ASTM D751: 30 percent minimum.

5. Low Temperature Flexibility, minimum, ASTM D2136: -40 deg. F.

6. Thickness, minimum, ASTM D751: 0.045 inch.

7. Color: White.

2.07 ASPHALT MATERIALS

A. Asphalt Primer, Low-VOC: ASTM D41/D41M, low-VOC, solvent-based asphalt primer with the following physical properties:

1. Basis of Design Product: Tremco, TREMprime LV.

2. Asbestos Content, EPA 600 R-93/116: None.

3. Volatile Organic Compounds, maximum, ASTM D3960: 350 g/L.

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Project No. 15065 Reynolds HS Addition & Remodel 07 51 13 - 7

B. Roofing Asphalt: ASTM D312/D312M, Type III, hot-melt asphalt.

1. Basis of Design Product: Tremco, Premium III.

2. Softening Point, min/max, ASTM D36: 195–205 deg. F.

3. Penetration at 77 deg. F, min/max, ASTM D5/D5M: 15–25 dmm.

4. Flash point, minimum, ASTM D92: 525 deg. F.

2.08 AUXILIARY BUILT-UP ROOFING MATERIALS

A. General: Auxiliary materials recommended by roofing manufacturer for intended use and compatible with built-up roofing.

1. Liquid-type auxiliary materials shall comply with VOC limits of authorities having jurisdiction.

B. Elastomeric Roofing Membrane: One-part, trowel-grade, elastomeric roof mastic specially formulated for compatibility and use with specified roofing membranes and flashings.

1. Basis of Design Product: Tremco, Trem-Lar LRM V.

2. Volatile Organic Compounds (VOC), maximum, ASTM D3960: 300 g/L.

3. Elongation at 77 deg. F, minimum, ASTM D412: 1000 percent.

4. Recovery from 500 percent Elongation, minimum, ASTM D412: 500 percent.

5. Flexibility at -40 deg. F, ASTM D3111: No cracking.

C. Asphalt Roofing Cement: ASTM D4586/D4586M, asbestos free, of consistency required by roofing manufacturer for application.

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

E. Fasteners: Factory-coated, corrosion-resistant steel fasteners and metal or plastic plates designed for fastening built-up roofing components to substrate, tested by manufacturer for required pullout strength and acceptable to roofing manufacturer.

F. Metal Flashing Sheet: Metal flashing sheet is specified in Section 07 62 00 - Sheet Metal Flashing and Trim.

G. Miscellaneous Accessories: Provide miscellaneous accessories recommended by built-up roofing manufacturer.

2.09 ROOF INSULATION

A. General: Preformed roof insulation boards manufactured or approved by roofing manufacturer, selected from manufacturer's standard sizes suitable for application, of thicknesses indicated and that produce FM Global-approved roof insulation.

B. Polyisocyanurate Board Insulation: ASTM C1289, Type II, Class 2, approved and listed by FM Global for windstorm and fire characteristics specified, CFC- and HCFC- free, with recycled content glass-fiber mat facer on both major surfaces. CCMC listed.

1. Basis of Design Product: Tremco, Trisotech.

2. Compressive Strength, ASTM D1621: Grade 3: 25 psi.

3. Conditioned Thermal Resistance at 75 deg. F: 14.4 at 2.5 inches thick.

a. Thermal Resistance: R-20 minimum.

C. Tapered Insulation: Provide factory-tapered insulation boards fabricated to slope of 1/4 inch per 12 inches (1:48) unless otherwise indicated.

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

2.10 INSULATION ACCESSORIES

A. General: Roof insulation accessories recommended by insulation manufacturer for intended use and compatible with built-up roofing.

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

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