3115 NW 132nd Place, Portland, OR 97229-7037

Phone 503-531-8717 Fax 503-531-8564 e-mail dgessert@frontier.com Letter Date: June 23, 2015

To: YBA Architects 123 NW 2nd Ave, Suite 204 Portland, OR 97209

Attention: Kavahn Aman

From: David Gessert, P. E. Fire Protection Engineer

Subject/Project: Q21 Intumescent Coating for Tapered Steel Columns

Job No.: 2015-33 Total Pages: 3 Executive Summary Either of the proposed intumescent coatings proposed for fire protection of the Q21 project tapered steel columns will provide three hours of fire resistance. Intumescent protection is similar to the char that provides substantial fire resistance to heavy timber construction. Intumescent Coating for Tapered Steel Columns Tapered structural steel columns are included in the design for the Q21 project. These columns are twelve sided, made of 5/8 inch thick structural steel, are 13 inches (flat to flat) at the ends, 19 inches (flat to flat) at the center, and approximately 35 feet long. Intumescent coatings swell or bubble up when exposed to heat and expands 15 to 30 times its original volume. These coatings, when heated, increase in volume and decrease in density, simulating the development of a char layer as is found on the surface of wood in fire conditions. As the intumescent char layer is formed when a blowing agent (a substance used to create bubbles in the material) is released which helps with the formation of a low-density, relatively thick carbonaceous layer. Intumescent coating’s chemical process when heated is highly endothermic which contributes to extending the time before the structural steel columns reaches its critical or yield temperature. The intumescent mechanism involves the interaction of four types of compounds: a carbon source, an intumescent, a bowing agent, and a resin. When the coating becomes sufficiently heated, the carbon source reacts with a dehydrating agent to form a char, which is

Letter to Kavahn Aman June 23, 2015 Page 2 of 3 simultaneously expanded by gases released from the blowing agent. The resin binder prevents the gases from escaping. As a result, an insulting layer is produced that can be many times thicker than the original coating. This char layer acts as insulation to the coated member thus delaying the temperature rise in the structural steel columns during fire conditions. Two manufacturers of intumescent coatings have proposed material for the Q21 tapered steel columns. Key information of their proposals is shown in the following table:

Intumescent Coating Proposals Intumescent Coating

Manufacturer Coating Thickness

(inches) Fire Resistance Rating (hours) Design Basis

Isolatek 0.3691 3 UL X650 Carboline 0.4302 3 CCIF 180-03 Table Notes:

1. Based on Isolatek CAFCO SprayFilm WB 4 Intumescent Fire Resistive Material. 2. Based on Carboline Thermo-Lag E100.

If a published Listed thickness is available for a structural steel member used in a specific way that thickness of the intumescent coating is used. If the structural steel member is not shown in the Listing then the weight in pounds per lineal foot over the exposed diameter, W/D (or cross section of the steel member not including voids over the perimeter, A/P) of the structural member in inches is calculated. This W/D (or A/P) ratio represents the rate at which a structural steel shape gains heat as a function of its surface area and thermal mass. For members that are not shown in the Listing the required thickness of the intumescent coating can be determined using this W/D (or A/P) ratio. Conclusion The dry film thickness of either the Isolatek CAFCO SprayFilm WB Intumescent Fire Resistive Material or the Carboline Thermo-Lag E100 S will provide three hours of fire resistance for the tapered steel columns. Coating thicknesses are shown in the table above. I will be pleased to address your questions and comments. References Data Sheet, Carboline Thermo-Lag E100 S, December 2013, Carboline, St. Louis, Missouri Data Sheet, Isolatek CAFCO Spray Film WB 4, C-TDS-10/14, Isolatek International Design No. X650, 2014 Fire Resistance Directory Isolatek Designs, as shown

Letter to Kavahn Aman June 23, 2015 Page 3 of 3 Email dated June 18, 2015, to David Gessert of Fire Protection Consulting, from Ronald Carraway of Carboline Company, Mission Viejo, California Fire Protection Handbook, 20th Edition, 2008, National Fire Protection Association, Quincy, Massachusetts Letter dated May 19, 2015, to Kavahn Aman of YBA Architects, from Mathew Martinez of Isolatek International, Stanhope, New Jersey End of Letter

Thermo-Lag® E100 S

December 2013 NC27

To the best of our knowledge the technical data contained herein is true and accurate on the date of publication and is subject to change without prior notice. User must contact Carboline Companyto verify correctness before specifying or ordering. No guarantee of accuracy is given or implied. We guarantee our products to conform to Carboline quality control. We assume no responsibility forcoverage, performance or injuries resulting from use. Liability, if any, is limited to replacement of products. NO OTHER WARRANTY OR GUARANTEE OF ANY KIND IS MADE BY CARBOLINE,EXPRESS OR IMPLIED, STATUTORY, BY OPERATION OF LAW, OR OTHERWISE, INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Carboline® and Carboguard®are registered trademarks of Carboline Company.

Page 1 of 3

Selection & Specification Data Generic Type A two component, 95% solids epoxy intumescent

fireproofing.

Description An epoxy intumescent fireproofing for commercialand light industrial applications. It was specificallydesigned with an advanced formulation to provide1-3 hour cellulosic fire protection for structural steelbeams, I-section columns, tubular columns and pipeswithout the need for reinforcing mesh. It providesa fast curing, aesthetically pleasing fire protectionsolution and is rated for both exterior and interiorapplications.

Features • Certified to UL 263 / ASTM E119 / NFPA 251• Exterior and interior rated• High quality aesthetic finish• Does not require reinforcing mesh• Low thickness requirements• High build, fast recoat• Saves application time, lowering installation cost• Rugged durable material suitable for onsite or offsite

applications• LEED compliant, low VOC• Low outgassing properties for clean room

environments

Color Grey

Finish Slightly Textured

Primers Must be applied over a compatible primer. If the steelhas already been coated with an existing primer,refer to Carboline Technical Service for advice beforeapplying. Contact Carboline Technical Service for acomplete list of approved primers.

FireproofingTopcoats

For interior conditioned space, topcoats are optional.For interior general purpose and exterior use,Carboline approved topcoats are required. Productmust be applied to the specified DFT and reach aminimum average Shore D hardness of 40 prior toapplying a topcoat. The choice of topcoat will dependon project requirements. Contact Carboline TechnicalService for a complete list of approved topcoats.

Film Build 60-120 mils (1.5-3.0 mm)

Solids Content 95%

TheoreticalCoverage Rates

1,523 ft²/gallon at 1 mil (38 m²/liter at 25 microns)

VOC Values As Supplied 0.53 lbs/gal (64 g/l)

Limitations Not recommended for steelwork subject to long-termsurface temperatures over 175°F (79°C) in normaluse.

Substrates & Surface Preparation General Remove all oil or grease from the surface to be coated

using Thinner #2 or Carboline Surface Cleaner #3.

Steel The general requirement for steel preparation beforethe application of an approved primer should meetSSPC-SP6, with a 1.5-2.0 mil (37-50 micron) angularprofile. Contact Carboline Technical Service forrecommendations and specific primer requirements.

Substrates & Surface Preparation Galvanized Steel The general requirement for steel preparation before

priming should meet SSPC-SP7. 1.5-2.0 mil (37-50micron) angular profile required. Prime with Carbolineapproved primer. Contact Carboline Technical Servicefor recommendations.

Non-FerrousMetals

Contact Carboline Technical Service forrecommendations.

Performance Data Test Method Results

ASTM D2240 Hardness > 60 Shore D (fully cured)40 Shore D (for topcoating)

ASTM D256 Impact Resistance 0.75 ft*lbs/inASTM D4541 Bond Strength > 1,200 psi (> 8.2 MPa)1

ASTM D695 Compressive Strength > 2,330 psi (> 16.0 MPa)ASTM D790 Flexural Strength > 1,220 psi (> 8.4 MPa)ASTM E84 Surface Burning Class A

All values derived under controlled laboratory conditions.1 Typical value. Recommended field minimum value is > 300 psi (> 2.0 MPa)

Mixing & Thinning Mixer Use 1/2" electric or air driven drill with a slotted paddle

mixer. Must be 300 rpm under load (minimum).

Mixing Plural Component Application:For plural component applications, the product issupplied in full 9 gallon (34.0 liter) kits. The part Aand part B components must be pre-mixed separatelybefore introduction into the plural equipment.Single Component Application:For single component applications, the product issupplied in 4.5 gallon (17.0 liter) kits, one 1/2 full pailof part A and one 1/2 full pail of part B. Add up to 1quart (1 liter) of Carboline Thinner #19, Thinner #242Eor Carboline approved equivalent to part B and mixuntil fully incorporated. Stage material by adding partB on top of part A. Material can be left staged forentire days' production (8 hours), but not overnight.Mix staged material with slotted paddle mixing bladefor approximately 2 minutes or until completelyblended and consistent color is achieved. Oncemixed, material should be immediately introduced intosingle component equipment and spraying shouldcommence.Trowel Application:For trowel applications, the product is supplied in4.5 gallon (17.0 liter) kits, one 1/2 full pail of part Aand one 1/2 full pail of part B. Add up to 1 quart (1liter) of Carboline Thinner #19, Thinner #242E orCarboline approved equivalent to part B and mix untilfully incorporated. Thinning is not required for thisapplication and material should only be thinned asnecessary to achieve the desired working time andconsistency. Stage material by adding part B on topof part A. Material can be left staged for entire days'production (8 hours), but not overnight.Mix staged material with slotted paddle mixing bladefor approximately 2 minutes or until completely

Thermo-Lag® E100 S

December 2013 NC27

To the best of our knowledge the technical data contained herein is true and accurate on the date of publication and is subject to change without prior notice. User must contact Carboline Companyto verify correctness before specifying or ordering. No guarantee of accuracy is given or implied. We guarantee our products to conform to Carboline quality control. We assume no responsibility forcoverage, performance or injuries resulting from use. Liability, if any, is limited to replacement of products. NO OTHER WARRANTY OR GUARANTEE OF ANY KIND IS MADE BY CARBOLINE,EXPRESS OR IMPLIED, STATUTORY, BY OPERATION OF LAW, OR OTHERWISE, INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Carboline® and Carboguard®are registered trademarks of Carboline Company.

Page 2 of 3

Mixing & Thinning blended and consistent color is achieved. Once mixed,material should be immediately poured out of massonto a clean table or flat working surface to extendthe pot life. Mixed material left in the pail will beginto exotherm and diminish pot life. Trowel applicationshould commence immediately after mixing.

Thinning Plural Component Application:Do not thinSingle Component Application:Thin with Thinner #19, Thinner #242E or Carbolineapproved equivalent – Maximum 1 quart (1 liter) per4.5 gallon (17.0 liter) kitTrowel Application:Only thin as required with Thinner #19, Thinner #242Eor Carboline approved equivalent – Maximum 1 quart(1 liter) per 4.5 gallon (17.0 liter) kit.

Ratio 1:1

Working Time 30 - 45 minutes @ 75°F (25°C)15 - 20 minutes @ 100°F (38°C)

Application Equipment Guidelines Listed below are general equipment guidelines for the application of this product. Job site conditionsmay require modifications to these guidelines to achieve the desired results.

General Thermo-Lag E100 S may be applied by either singlecomponent or plural component application. Use onlysingle component or plural component equipmentspecifically designed for epoxy based PFP.

Pump Single Component:WIWA® Herkules 75:1 or equivalentPlural Component:WIWA® Duomix 333 or equivalent

Spray Gun WIWA® 500 PFP or equivalent

Gun Swivel 5,000 psi (1/2"-3/8")

Spray Tips 0.027" - 0.035" (Use heavy duty RAC non diffuser tipsand housing)

Fan Size 6"-10" (depending on section being sprayed).

Static Mixer Standard Static 12 turn (3/4" I.D.)

Material Hose Single Component:Use 50' of high pressure spray line with a minimumI.D. of 3/4" (19 mm)Plural Component:100' heated hose bundle (3/4" I.D. minimum) with 3/4"mixer manifold

Whip Hose 20' (1/2" I.D. minimum)

Compressor 185 cfm @ 100 psi (6.9 kPa) minimum

Note: WIWA® is a registered trademark of the Wilhelm Wagner GmbH &Co. KG

Application Procedures General Single Component Application:

Prior to spraying using single component airlessequipment, the material must be preheated to aminimum of 70°F (21°C) to achieve a consistentfan pattern. Apply first coat at 60-120 mils (1.5-3mm). Allow material to gel for 20-30 minutes beforebackrolling (only if required). If backrolling, useCarboline Thinner #19, Thinner #242E or approvedequal as rolling solvent to mist down rollers to preventthem from sticking to the material. Allow material to

Application Procedures cure for 4 hours between coats. Continue buildingmaterial at 60-120 mils (1.5-3 mm) per coat tospecified thickness.Plural Component Application:Prior to introduction into the plural componentequipment, the product must be preheated to 70°F -100°F (21°C - 38°C). Perform at least two ratio checksper day and also after any equipment maintenance.Apply first coat at 60-120 mils (1.5-3 mm). Lightercoats will achieve a smoother finish. Allow material togel for 15 minutes before backrolling (only if required).If backrolling, use solvent resistant mohair rollers. UseCarboline Thinner #19, Thinner #242E or approvedequal as rolling solvent to mist down rollers to preventthem from sticking to the material. Allow materialto cure for approximately 30 minutes (dependingupon temperature) between coats. Continue buildingmaterial at 60-120 mils (1.5-3 mm) per coat tospecified thickness.Trowel Application:Prior to trowel application, the material must bepreheated to a minimum of 70°F (21°C) to achievea workable consistency. Once material is mixed, itmust be poured out of mass onto a clean table or flatworking surface to extend the pot life. The materialcan then be divided into workable amounts. Trowelapply first coat at 60-120 mils (1.5-3 mm). Allowmaterial to gel for 20-30 minutes before backrolling(only if required). If backrolling, use Carboline Thinner#19, Thinner #242E or approved equal as rollingsolvent to mist down rollers to prevent them fromsticking to the material. Allow material to cure for4 hours between coats. Continue building materialat 60-120 mils (1.5-3 mm) per coat to specifiedthickness.

Avoid using excessive solvent when backrolling as this can leadto solvent entrapment and lengthen the cure time of the material.Use solvent moistened rollers to back roll material after each subsequentcoat to improve finish and level surface if required. Lighter coats willachieve a smoother finish. Contact Carboline Technical Service or referto the product application manual for more detailed information.

Wet FilmThickness

Frequent thickness measurements with a wet filmgauge are recommended during the applicationprocess to ensure uniform thickness.

Dry FilmThickness

For recommended methods of thickness determinationand tolerances refer to: AWCI Technical Manual 12-B (Standard Practice for the Testing and Inspectionof Field Applied Thin Film Intumescent Fire ResistiveMaterials).

Application Conditions Condition Material Surface Ambient HumidityMinimum 70 °F (21 °C) 41 °F (5 °C) 41 °F (5 °C) 0%Maximum 140 °F (60 °C) 125 °F (52 °C) 110 °F (43 °C) 85%

Air and substrate temperature must be at least 41°F (5°C) and rising. Steel surface temperatureshould be a minimum of 5°F (3°C) above the dew point. The maximum humidity is 85%. Materialmust be protected from direct rain until it has reached sufficient cure.

Thermo-Lag® E100 S

December 2013 NC27

To the best of our knowledge the technical data contained herein is true and accurate on the date of publication and is subject to change without prior notice. User must contact Carboline Companyto verify correctness before specifying or ordering. No guarantee of accuracy is given or implied. We guarantee our products to conform to Carboline quality control. We assume no responsibility forcoverage, performance or injuries resulting from use. Liability, if any, is limited to replacement of products. NO OTHER WARRANTY OR GUARANTEE OF ANY KIND IS MADE BY CARBOLINE,EXPRESS OR IMPLIED, STATUTORY, BY OPERATION OF LAW, OR OTHERWISE, INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Carboline® and Carboguard®are registered trademarks of Carboline Company.

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Curing Schedule SurfaceTemp. &

50% RelativeHumidity

Handle Recoat Topcoat Touch

70 °F (21 °C) 48 Hours 4 Hours 48 Hours 4 Hours

Curing times are dependent upon temperature, air movement and humidity. Lower temperatures willslow down the curing process and increase recoat intervals, higher temperatures will speed up thecuring process and shorten the recoat intervals. The material can be heated to achieve a quickerrecoating and curing schedule. For optimum curing, it is recommended to apply coats at 60-120 mils(1.5-3 mm) wet per coat. Material is ready to be topcoated when an average Shore D hardnessof 40 is achieved. Consult Carboline Technical Service for specific details.

Cleanup & Safety Cleanup Pump, mixer, hose, and gun should be cleaned with

Carboline Thinner #19, Thinner #76 or Thinner #242Eat least once every 4 hours at 70°F (21°C), and moreoften at higher temperatures. After each use or anyshut down, the pump, mixer, hopper and gun mustbe completely flushed with solvent. After flushingpump, remove hopper and bottom foot of pump toclean lower ball check valve. Also remove and handclean gun, tips and tip housing. The hopper andmixing paddle must be kept clean continuously duringapplication to prevent cured material from falling intothe foot of the pump.

Safety Follow all safety precautions on the product MaterialSafety Data Sheet.

Overspray All adjacent and finished surfaces shall be protectedfrom damage and overspray.

Ventilation In enclosed areas, ventilation shall not be less than 4complete air exchanges per hour until the material iscured.

Maintenance General For patches and repairs, the material can be applied

by spray or trowel. Repair areas must be abradedback to a firm edge by sanding or scraping. Removeproduct from areas in need of repair back to solidlyadhered material. Ensure that the primer systemis still is tact as well. If not, the primer system shallbe reinstated to its original specification. All edgescan be left as butt joints at a 90 degree angle orbeveled at a 45 degree angle. The topcoat should beabraded back by 1" (25.4 mm) from the repair area.All edges must be solvent cleaned and allowed todry before commencing application. It is importantthat the patch area blends into the existing materialto achieve a uniform appearance. The product shallthen be troweled or spray applied to the appropriatethickness based on the project specification and firetest certification. Once the material has been allowedto sufficiently cure, the specified topcoat system shallbe applied, based on the original specification, in strictaccordance with Carboline’s written instructions.

Testing / Certification / Listing UnderwritersLaboratories, Inc

This product has been tested in accordance with theUL Environmental Test Program and is listed andclassified by UL for both exterior and interior use.

Intertek This product has been tested in accordance withASTM E-119 at Intertek Laboratories and is listed inthe following designs:Wide Flange Columns: CC/IF 180-02HSS Columns: CC/IF 180-03Restrained / Unrestrained Beams: CC/IF 180-01

Packaging, Handling & Storage Shelf Life 12 Months

Shelf life when kept at recommended storage conditions and in originalunopened containers.

Shipping Weight(Approximate)

11 lbs. per gallon (1.3 kg per liter)

Flash Point(Setaflash)

Part A: 185°F (85°C)Part B: >200°F (>93°C)

Storage Store indoors in a dry environment between 32°F -100°F (0°C - 38°C).

Packaging Half kits: 4.5 gallons (17.0 liters)Part A: 2.25 gallons (8.5 liters)Part B: 2.25 gallons (8.5 liters)Full kits: 9.0 gallons (34.0 liters)Part A: 4.5 gallons (17.0 liters)Part B: 4.5 gallons (17.0 liters)

Half kits are used for single component and trowel applications. Full kitsare used for plural component applications only.

CAFCO® SprayFilm® WB 4Intumescent Fireproofing

PRODUCT DESCRIPTION CAFCO SprayFilm WB 4 Intumescent Fire Resistive Material (IFRM), when combined with CAFCO SprayFilm Topseal®, is a water-based system investigated by Underwriters Laboratories (UL) for exterior applications.CAFCO SprayFilm gives architects the ability to design using steel that can be decorative and aesthetically pleasing. It can be top coated to match its surroundings and allows steel to be left exposed to view while providing the fire resistance rating.

PRODUCT ADVANTAGES• Water-based intumescent coating with low VOC’s • The only water-based intumescent coating that is UL classified for

exterior use• Semi smooth architectural finish • Can be finished with a wide variety of topcoat types and colors• Quick, easy application and clean up• Wide range of testing • Provides up to 4-hour fire resistance ratings in accordance with

ANSI/UL 263, ASTM E119 and CAN/ULC-S101

PHYSICAL PERFORMANCEIt is important for fire protection materials to be able to withstand abuse. American Society for Testing and Materials (ASTM) test methods are used to evaluate the performance of intumescent materials when subjected to these various physical forces. CAFCO SprayFilm WB 4 has been evaluated to meet rigorous industry test standards.

FIRE TEST PERFORMANCECAFCO SprayFilm WB 4 has been extensively tested for fire resistance and is rated for up to 4 hours for floor assemblies, beams, and columns.• Classified by UL in accordance with ANSI/UL 263 (ASTM E119)• Classified by UL in accordance with CAN/ULC-S101 (ASTM E119)CAFCO SprayFilm WB 4 has also been tested for surface burning characteristics in accordance with ASTM E84 and is rated Class A. Flame Spread .......15 Smoke Developed .......0

CODE COMPLIANCESCAFCO SprayFilm WB 4 satisfies the requirements of the following: • IBC® - INTERNATIONAL BUILDING CODE®

• City of Los Angeles• NBC - National Building Code of Canada

MAJOR SPECIFICATIONSCAFCO SprayFilm WB 4 complies with the requirements of the following specifications:• MasterSpec®, Section 078123 APPLIED FIREPROOFING (AIA)• MasterFormat® 2014, Section 07 81 00 Applied Fireproofing (CSC,CSI)• Unified Facilities Guide Specification, UFGS 07 81 00

Spray-Applied Fireproofing (USACE, NAVFAC, AFCEC, NASA)• Master Construction Specifications, Number 07 81 00

Applied Fireproofing (VA)• Code of Federal Regulations, Title 40 Protection of the Environment (EPA)• PBS-P100, Facilities Standards for the Public Buildings Services (GSA)

APPLICATION• A compatible primer must be applied to the steel substrate. Refer to the

Primers for CAFCO SprayFilm Intumescent Fireproofing Technical Data Sheet.

• CAFCO SprayFilm WB 4 can be brushed or sprayed, not rolled. It is available in a trowel grade material.

• The applied thickness of CAFCO SprayFilm WB 4 will depend upon the specified fire rating and size / shape of the steel member to be protected.

• For exterior use, SprayFilm WB 4 must be sealed with CAFCO SprayFilm Topseal followed by an approved exterior finish coat to protect against humidity, chemical and damage. Refer to the Topseal and Finish Coat Materials Technical Data Sheets.

Color WhiteDensity 12.0 lb/gal ±0.5PH Value 7.5 to 8.5 Application Temperature Min. 50º F (10º C), Max. 100º F (38º C)

Technical Data

Characteristic ASTM Method Tested Performance*Abrasion Resistance D4060 0.2300 g/ 1000 cyclesBond Strength D4541 322 psi (2220 kPa)Durometer Hardness (Shore D) D2240 81 Shore DImpact Resistance D2794 98 inch-lb (11 Nm)

Surface Burning E84 Flame Spread 15 Smoke Developed 0

Class A

* Values represent independent laboratory tests under controlled conditions.

Physical Performance

Type SprayFilm-WB 4 OR Type WB 4 File 16640

MASTIC COATING FIRE RESISTANCE CLASSIFICATION SEE UL FIRE RESISTANCE DIRECTORY

Technical Data Sheet

Packaging 5.0 U.S. gal (18.9 L) containerNet Contents 5.0 U.S. gal / 58 lbs (18.9 L / 26.3 kg)Gross Weight (Approx) 61 lbs (27.6 kg)Shelf Life 12 months in unopened sealed containers, properly stored.

Storage Storage Temperature 33º F - 100º F (1º C - 38º C) Must protect from freezing and excessive heat. Store in a dry environment.

Packaging/Storage

owners’

C-T

DS

-10/

14

ISOLATEK INTERNATIONAL is registered with theAIA Continuing Education System (AIA/CES)

SECTION 078123 - Intumescent FireproofingThe following is an outline/short language specification. Complete specifications for intumescent fire resistive materials are available on various media upon request.

PART 1 - GENERAL

1.1 Scope

1.1.1 This specification covers labor, materials, equipment, and application necessary for, and incidental to, the complete and proper installation of intumescent fire protection for application to steel structures and supports in accordance with all applicable requirements of contract documents.

1.1.2 This specification shall be supplemented by the applicable requirements of building codes, insurance rating organizations and all other authorities having jurisdiction.

1.2 Section Includes

1.2.1 Intumescent fire protection material.1.2.2 Topcoat protective decorative finish.

1.3 Related Sections

1.3.1 SECTION 051200 – STRUCTURAL STEEL FRAMING1.3.2 SECTION 053100 – STEEL DECKING1.3.3 SECTION 072100 – THERMAL INSULATION1.3.4 SECTION 078123 – INTUMESCENT FIREPROOFING1.3.5 SECTION 078443 – JOINT FIRESTOPPING

1.4 References

1.4.1 Underwriters Laboratories Inc. (UL) Fire Resistance Directory

1.4.2 Test StandardsA. UL 263 (ASTM E119) - Fire Tests of Building Construction

and Materials.B. ASTM E84 (UL723, CAN/ULC-S102) - Surface Burning

Characteristics of Building Materials. Class A Rating Required; Flame Spread Maximum: 15 and Smoke Developed Maximum: 0.

C. ASTM D2240 – Durometer Hardness (Shore D Only). Minimum: 81 Shore D.

D. ASTM D2794 – Impact Resistance. 98 inch-lb (1.13 kg-m).E. ASTM D4060 – Abrasion Resistance. Maximum

0.2300 grams/1000 cycles.F. ASTM D4541 – Bond Strength. Minimum: 322 psi.

(2220 k Pa.)1.4.3 Steel Structures Painting Council (SSPC) Surface

Preparation Standards.1.4.4 Material manufacturer’s current published information

including, but not limited to, application guide.1.4.5 AWCI Technical Manual 12-B “Standard Practice for

the Testing and Inspection of Field Applied Thin-Film Intumescent Fire-Resistive Materials; an Annotated Guide”, Latest Edition.

1.5 System Description

1.5.1 The intumescent fire protection materials shall be applied at the required thickness to provide the UL fire resistive ratings.

1.6 Submittals1.6.1 Manufacturer’s Data: Submit manufacturer’s specifications,

including certification as may be required to show material compliance with contract documents

1.7 Quality Assurance

1.7.1 Manufacturer - company specializing in manufacturing fire protection products.

1.7.2 The intumescent fire resistive material shall be manufactured under the Follow- Up Service program of UL or ULC and bear the UL and/or ULC label (mark).

1.7.3 Applicator - A firm with expertise in the installation of fire resistive or similar materials. This firm shall be recognized or otherwise approved by fire resistive material supplier.

1.7.4 Product - The product shall be approved by the architect and applicable authorities having jurisdiction.

1.8 Delivery, Storage and Handling

1.8.1 Deliver materials to the project in manufacturer’s unopened packages, fully identified as to trade name, type and other identifying data. Packaged materials shall bear the appropriate labels, seals and UL label (mark) for fire resistiveRatings and shall be stored at temperatures between 33º F - 100º F (1º C - 38º C), in a dry interior location away from direct sunlight. PROTECT FROM FREEZING.

1.9 Project/Site Conditions

1.9.1 When the temperature at the job site is less than 50ºF (10ºC), a minimum substrate and ambient temperature of 50ºF (10ºC) shall be maintained prior to, during, and a minimum of 72 hours after application. If necessary for job schedule, the General Contractor shall provide enclosures and heat to maintain proper temperatures and humidity levels in the application areas.

1.9.2 In enclosed areas, ventilation must not be less than 4 complete air exchanges per hour until the material is dry.

1.9.3 Relative humidity shall not exceed 85% throughout the total period of application and drying for the intumescent fire resistive material, and must not exceed 85% throughout the application and drying for the protective decorative topcoat.

1.10 Sequencing and Scheduling

1.10.1 Applicator shall cooperate in the coordination and scheduling of fire protection work to avoid delays in job progress.

1.10.2 The installation of piping, ducts, conduit or other suspended equipment shall not commence until the application of the thin-film fire resistive material is complete in that area.

PART 2 - PRODUCTS

2.1 Compatible Metal Primer

2.1.1 Primer shall be approved by manufacturer and applied in full accordance with the primer manufacturer’s written instructions.

2.2 Intumescent Fire Protection System

2.2.1 The intumescent fire resistive material shall be CAFCO SprayFilm WB 4 as supplied by Isolatek International or CAFCO Industries.

2.2.2 Intumescent fire resistive material shall be applied in accordance with drawings and/or specifications, and shall have been tested in accordance with the procedures of UL 263 or ASTM E119 or CAN/ULC-S101, and reported by Underwriters Laboratories, Inc. or Underwriters Laboratories of Canada only.

CAFCO® SprayFilm® WB 4 Guide Specification2.3 Decorative Topcoating

2.3.1 Topcoat materials shall be as required for color-coding, aesthetics or additional surface protection, and approved by the thin-film fire resistive material manufacturer.

PART 3 - EXECUTION

3.1 Preparation

3.1.1 All surfaces to receive thin-film fire resistive material shall be clean, dry and free of oil, grease, loose mill scale, dirt, dust or other materials which would impair bond of the thin-film fire resistive material to the surface. Any cleaning of the surfaces to receive fire resistive material shall be the responsibility of the General Contractor or steel erector, as outlined in the structural steel section.

3.1.2 Confirm compatibility of surfaces to receive thin-film fire resistive material. Steel surfaces shall be primed with a compatible primer approved by the thin-film fire resistive material manufacturer.

3.1.3 Provide masking, drop cloths or other suitable coverings to prevent overspray onto surfaces not intended to be coated with intumescent coating.

3.2 Application

3.2.1 The thin-film fire resistive material shall be applied at the required dry film thickness per the appropriate UL design number.

3.3 Mock Up

3.3.1 Before proceeding with the work, the applicator shall apply the thin-film fire resistive material to a section witnessed by the architect’s or owner’s representative. The application shall be subject to their approval and shall be used as a guide for texture and thickness of the finished work.

3.4 Clean Up and Repair

3.4.1 Upon completion of installation, all excess material, overspray and debris shall be cleared and removed from the job site.

3.4.2 All patching of and repair to thin-film fire resistive material, due to damage by other trades, shall be performed under this section and paid for by the trade responsible for the damage. Patching shall be performed by applicators recognized or otherwise approved by the manufacturer.

3.5 Inspection and Testing

3.5.1 In addition to continuous Wet Film Thickness checks performed by applicator during application, the installed intumescent material shall be inspected by a qualified independent testing laboratory for thickness in accordance with the AWCI Technical Manual 12-B “Standard Practice For The Testing and Inspection Of Field Applied Thin-Film Intumescent Fire-Resistive Materials; an Annotated Guide”, Second Edition, before application of the topcoat.

3.5.2 The results of the above tests shall be made available to all parties at the completion of each area and approved prior to the application of topcoat.

We support our customers with unsurpassed technical expertise and customer service, complemented by an extensive global network of experienced sales representatives and recognized applicators. For detailed product information or for the name of the sales representative in your area please contact us.

Design No. X650Ratings - 1, 1-1/2, 2 and 3 Hr. (See Item 2)

When used in Canada it is required that all materials included within the UL design are also cUL certified.

1. Steel Column — Steel tube (ST) or steel pipe (SP) with the minimum sizes shown in the table below. Columns shall be free of dirt,loose scale and oil. Columns shall be primed with a phenolic modified alkyd resin primer.

2. Mastic and Intumescent Coatings* — Coating spray, brush or trowel applied directly from containers to desired thickness. See tablebelow for appropriate final dry thickness and applicable rating.

FOR STEEL PIPE

Steel Size A/P Hp/A1 Hr 1-1/2 Hr 2 Hr

in. mm in. mm in. mmSP 4.5 x 0.313 0.29 135 0.117 2.99 — — — —SP 8 x 0.875 0.79 49 0.097 2.46 0.097 2.46 0.120 3.05SP 8.625 x 0.5 0.47 85 0.097 2.46 0.138 3.50 0.202 5.14

FOR SQUARE AND RECTANGULAR STEEL TUBE

Steel Size A/P Hp/A1 Hr 1-1/2 Hr 2 Hr 3 Hr

in. mm in. mm in. mm in. mmST3.5x3.5x3/16 0.18 224 0.165 4.18 — — — — — —ST5x3x1/4 0.23 169 0.104 2.65 0.252 6.39 0.400 10.15 — —ST5x3x5/16 0.29 135 0.084 2.13 0.218 5.54 0.353 8.96 — —ST8x6x3/8 0.35 114 0.074 1.87 0.173 4.40 0.280 7.12 — —ST8x6x7/16 0.41 100 0.074 1.87 0.151 3.84 0.244 6.21 — —ST5x3x1/2 0.44 93 0.074 1.87 0.127 3.23 0.207 5.27 — —ST8x8x1/2 0.47 85 0.074 1.87 0.095 2.41 0.164 4.17 0.327 8.31

BERLIN CO LTD —Type WB 3, Investigated for Interior General Purpose. Type WB 4, Investigated for Interior General Pur-pose. Type WB 4, Investigated for Exterior Use with top coat as described in Item 3.

ISOLATEK INTERNATIONAL —Type SprayFilm-WB 3 and Type WB 3, Investigated for Interior General Purpose . TypeSprayFilm-WB 4 and Type WB 4, Investigated for Interior General Purpose. Type SprayFilm-WB 4 and Type WB 4, Investi-gated for Exterior Use with top coat as described in Item 3.

3. Top Coat — Type SprayFilm – TOPSEAL and Type TOPSEAL required for Exterior Use, applied at a minimum dry thickness of 14mils (0.34 mm) over the intumescent material. See Classification information in the Mastic and Intumescent Coating (CDWZ) cat-egory, Isolatek International, for mixing requirements.

Investigated for Interior General Purpose.*Bearing the UL Classification Mark

2014 FIRE RESISTANCE DIRECTORY ISOLATEK DESIGNS

FIRE-RESISTANCE RATINGS - ANSI/UL 263 (BXUV) 319

From: Ron Carraway <RCarraway@carboline.com>

Sent: Thursday, June 18, 2015 3:46 PM

To: David Gessert

Cc: Kavahn Aman

Subject: Re: Q21 - Tapered Steel Columns

David

I used an average wall thickness of 0.656". I understood that plates forming the circle would meet at the inside and the gap at the outside would be filled during welding thus

adding mass. I assumed you used smooth round with an average w/d 2.05.

Thermo-Lag E100, Intertek design CCIF 180-03

W/D at 2.06 to 2.23- thickness 0.41" (410 mils) three hours. W/D 1.91 to 2.05 - thickness 0.43" (430 mils) three hours

What ever you are conformable with

Best regards,

Ronald R. Carraway | Fireproofing Product Manager Carboline Company – A/D Fire Protection Systems, a Carboline Co. 27821 Higuera | Mission Viejo, CA 92691, USA

Office + 1 (949) 458-2853 or (888) 323-3473 | Cell + 1 (949) 632-3415 | Fax + 1 (949) 458-9220

In Ireland + 353-1-6526589 | In China + 86-755-8624361

E-Mail: rcarraway@carboline.com

-----"David Gessert" <dgessert@frontier.com> wrote: ----- To: "'Ron Carraway'" <RCarraway@carboline.com>

From: "David Gessert" <dgessert@frontier.com> Date: 06/18/2015 12:57PM

Cc: <kavahn@yb-a.com>

Subject: Q21 - Tapered Steel Columns

Ron,

Thank you for the additional information on the intumescent coating for the Q21 project.

The structural elements that I am analyzing for fire protection are now are twelve sided tapered steel

columns. At the center the columns have a 19 inch dimension (flat to flat) and at the ends the

dimension (flat to flat) is 13 inches. Thickness of the structural steel remains at 5/8 inch.

My calculations show a W/D of 2.1 at the center and 2.0 at the ends.

Please check my calculations to see if I have erred, provide an option of the recommended product,

required thickness of the intumescent coating for a three hour (180 minute) fire resistance rating, and

data sheet to support the recommended thickness.

Thank you.

Best Regards,

David

David Gessert, P. E.

Fire Protection Engineer

3115 NW 132nd Place

Portland, OR 97229-7037

Direct: 503-531-8717

Fax: 503-531-8564

Cell: 503-720-6185

dgessert@frontier.com

From: Ron Carraway [mailto:RCarraway@carboline.com] Sent: Tuesday, June 16, 2015 3:39 PM To: David Gessert

Subject: HSS test design Thermo-Lag 3000

Ronald R. Carraway | Fireproofing Product Manager

Carboline Company – A/D Fire Protection Systems, a Carboline Co.

27821 Higuera | Mission Viejo, CA 92691, USA

Office + 1 (949) 458-2853 or (888) 323-3473 | Cell + 1 (949) 632-3415 | Fax + 1 (949) 458-9220

In Ireland + 353-1-6526589 | In China + 86-755-8624361

E-Mail: rcarraway@carboline.com

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