INTEGRIS Baptist Medical Center in Oklahoma City,OK, opened Easter Sunday 1959 as a 200-bedhospital and was known as the “hospital on thehill.” Now it boasts 511 beds and offers a fullrange of surgical, diagnostic, therapeutic andrehabilitative services.

Fall 2015 kicked off a renovation of the hospital’sentryway. This re-design by HKS included a newcanopy and curtainwall to bring more light and lifeto the hospital entrance. General Contractor FlintcoConstructive Solutions selected Chamberlin Roofing& Waterproofing to install the hot fluid-appliedwaterproofing for this project.

The waterproofing scope played a major role in thisparticular project, as a basement housing highlysensitive medical equipment was located directly

below the hospital’s entrance. Keeping this areawatertight was pertinent to the hospital functioningand their patients receiving the care they need.

The Right SystemAn environmentally friendly hot rubberized asphaltwaterproofing system was chosen for this project. Thissystem was a great choice for the facility because itconforms to surface irregularities and fully adheres tothe deck, restricting lateral water movement.

To begin, the failing waterproofing system wasremoved. After the concrete was demolished, theChamberlin crew got to work removing the oldwaterproofing with scrapers and grinders. The desiredeffect of this removal process was a rough substrate towhich the new waterproofing system could easilyadhere. Next, Flintco installed new curbs and mortar INSIDE

Ever notice a breeze in older buildings, even when it is not windy?Many buildings are leaking air, which means the owners arelosing money. Charlotte-Mecklenburg Schools (CMS), the 19thlargest school district in the U.S. with a $1.3 billion operatingbudget, recently decided to take action to identify buildings in theschool district that might be exhibiting air leakage.

GUEST COLUMN:

SPRING 2016 NEwSlETTER

(Continued pg. 2...see INTEGRIS BAPTIST MEDICAL CENTER)

(Continued pg. 2...see AIR BARRIER TESTING)

INTEGRIS Baptist Medical Center.......2 -5

Air Barrier Testing Reveals Cost Reduction..............2 - 4

NRCA Awards...........5

Employee Profile......5

Projects in Progress...6

www.ChAMBERlINlTD.COM

By Jeff Poe, Jr, El, RROTerracon

Waterproofing Details Can Make All The Difference

Air Barrier Testing: Reveals Cost Reduction Solutions for School District

INTEGRIS Baptist Medical Center in Oklahoma City, Oklahoma

In early 2014, CMS approved an architecturaland engineering guideline change proposal toincorporate air barrier testing for all newbuildings, additions, and major renovations.Using this guideline, CMS’s plan was todecrease the air leakage from 0.25 cfm persquare foot of exterior enclosure for buildingsbuilt in 2014, to 0.15 cfm per square foot ofbuilding enclosure for buildings built in andafter 2018.

To help the school district determine sourcesof air leakage in a school built in 2015,Terracon performed air barrier testing ingeneral accordance with the US Army Corpsof Engineers (USACE) Engineering Researchand Development Center (ERDC), Air LeakageTest Protocol for Measuring Air Leakage inBuildings, with a proprietary (Retro-Tec)Blower Door Testing system.

IDENTIFYING CHALLENGES

For effective use of test equipment, thebuilding had to be split into five areas to betested separately. Splitting up the building intoseparate areas proved to be a challenge dueto the amount of ducts and air transferswhich cross the firewalls. Each of these hadto be sealed for the testing. All doors andmechanical ducts that connected with otherportions of the building outside of the testingarea were sealed to prevent extraneous airleakage, which can disproportionately alter theresults of the test.

To run the test, all mechanical louvers, vents,and any other engineered transfer through theair barrier system to the exterior, had to becovered and sealed to prevent air leakage. Allexterior doors were shut and any operablewindows closed and locked. Three fans were

patching on deficient areas, and thehospital entrance was ready to receivethe new waterproofing.

It’s All About the DetailsChamberlin started with the details.The crew applied flashing on theinside and outside corners of the curbsand around the drains. Cracks in thesubstrate were sealed. The details areimperative in these areas where coldjoints are used to connect the concreteslab to the curb or drain. Areas thathave to be connected with jointsare more susceptible to leaks andsubstrate cracking. The flashingdetails reinforce the seal, adding anextra layer of waterproofing protection.

Next, the hot fluid-applied waterproofingwas prepped for installation. Thissystem requires blocks of the materialto be melted in a kettle and reach450 degrees before installation.Once melted, the liquid is transportedin buckets from the kettle to theinstallation area, where it is pouredout and applied evenly.

The Perfect BalanceApplying this liquid waterproofing atthe correct millage, or thickness,is crucial. Incorrect millage can affectwarranty coverage and the material’s

performance. As the substrateexpands and contracts over time,the waterproofing must be able tomove with it. If it is applied too thickor too thin, its movement will becompromised and the systemcould leak.

Chamberlin crew members diligently applied the first layer of waterproofing. Then a mesh reinforcing fabric was installed to giverigidity to the waterproofing system.Next, a second layer of hot fluid-applied waterproofing was installed. Chamberlin and the waterproofing material manufacturer conducted millage testing throughoutthe project for quality control.

Once the entire waterproofing systemwas installed, Chamberlin performed awater test. The waterproofed area wasfilled with water. The amount of waterwas measured when it was filled andthen again 24 hours later. If any waterwas lost, it could indicate a leak in thesystem. However, the system provedwatertight, so Chamberlin proceededwith installing the cap sheet anddrainage mat. To complete theprocess, the insulation was installedand the top level of concrete was poured.

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(AIR BARRIER TESTING Continued from pg. 1)

ACTIVE MEMBER OF:

(Continued pg. 3...see INTEGRIS BAPTIST MEDICAL CENTER) Mesh reinforcing fabric was installed between layers of hot-fluid waterproofing to give rigidity to the system.

(Continued pg. 3...see AIR BARRIER TESTING)

Chamberlin removed the old waterproofing at the hospital entrance to preparefor the new system.

Charlotte-Mecklenburg Schools incorporated air barrier testing for all new buildings, major renovations and additions.

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(INTEGRIS BAPTIST MEDICAL CENTER Continued from pg. 2)

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set in a plastic frame which was placed in an exteriordoor frame. The three fans were connected tocontrollers which adjust the fan speed based on thepressure in the building. A computer records the flowthrough the fans and dictates to the controllers whatthe required pressures shall be throughout the test.

The flow through the building enclosure was recordedat 10 different pressure points. These points wereplaced on a graph which created a straight line thatwas then used to calculate the flow through thebuilding enclosure at 75 Pascals, a unit of pressurein metric units.

Smoke pens, devices that emit a constant stream ofsmoke that can be used to show air movement, wereused on the interior of the building to focus in on thesource of leaks during the pressurization phase of thetest. A stream of smoke was moved across differentsurfaces that had potential for air loss, such aswindows, doors, electrical outlets, roof and wall

A water test was performed to check for leaks.

(Continued pg. 5...see INTEGRIS BAPTIST MEDICAL CENTER)

Solutions: It’s What We DoThis project was scheduled in twophases. The first phase ran Octoberto November 2015, and the secondphase is slated to start in April 2016.Ideally, the entire entrance to thehospital would have been renovatedat once, but since the project wasdivided into two phases, that was notpossible and created a challenge.Once the new waterproofing systemwas installed, it was watertight.However, leaks from the old, failingwaterproofing system could possiblyinfiltrate the new system. If theyweren’t fully separated, water leakingfrom the old waterproofing systemcould seep under the membrane ofthe newly installed waterproofingand ruin it from the underside.If that happened, the first phaseof waterproofing would no longerbe functional.

Chamberlin had an idea. Based onprevious jobs where they had facedsimilar circumstances, they created adetail that could isolate the first phasefrom the second phase. The projectteam agreed with the solution, andChamberlin implemented the detail.

The concrete poured to cover thenew waterproofing system was

stopped two feet short of where theold and new waterproofing systemsmet. This created a block out,which allowed room to apply thewaterproofing detail that would isolatethe two systems. In this two-footblock out, Chamberlin tied the newhot waterproofing into the old systemas best as possible. However, theyknew that would not be sufficient tokeep the two systems fully separated,since they could not access enoughof the old waterproofing system toproperly tie the two systems together.For further protection, they turnedthe waterproofing up the vertical faceof the new concrete slab, stoppingone inch from the top. The crew theninstalled an expansion board with azip strip against the waterproofing onthe vertical face, essentially formingan expansion joint and protecting thevertical waterproofing. Concrete wasthen poured to fill the block out. Finally, Chamberlin removed the zipstrip and filled that area with jointsealant for additional protection fromwater penetration at the slab. Thiswaterproofing detail will keep the newsystem watertight until the secondphase of the project is completed.

(AIR BARRIER TESTING Continued from pg. 2)

The completed hot fluid-applied waterproofing system before concrete is poured.

Fans were placed in exterior door frames to conduct the air barrier test.

4

intersections, and other areas that maypenetrate the air barrier. Terracon also usedinfrared cameras to help detect air leaks.By repeating this process, Terracon wasable to identify significant sources of airleakage. For this facility, the exterior doorsand the intersections of the exterior wallsat the roof deck were the major offenders.At the doors, large gaps were exposed atthe door locks and at the thresholds.

IDENTIFYING COST SAVINGS

In this case, the allowable leakage rateequated to 0.25 cfm per square foot ofexterior enclosure area which met thetarget standard provided by the CMS.To illustrate the amount of leakage,this result equates to a single opening ofapproximately 36.7 square feet or roughly6 feet by 6 feet of equivalent leakage area.

Other areas were identified which couldbe easily repaired, allowing the clientadditional savings in energy consumption.For an idea of how much these repairscould save, The National Institute ofStandards and Technology issued areport stating that an office building witha total floor area of 24,200 square feet(approximately 30% of the floor area of theschool building tested by Terracon) in thesame climate zone saved more than$3,000 annually when air infiltration intothe building was eliminated by 83 percentfrom its baseline. Equating this to the floorarea of the entire school building, theannual savings is approximately $10,000.

By identifying the most efficient way toconduct air barrier testing for this type ofschool building, Terracon, in partnershipwith CMS, was able to show results and

recommend cost-savings as well as energyconservation solutions, setting a baselinefor future energy performance reviewswithin the District’s buildings.

Jeff Poe, Jr., El, RRO, is an engineer at Terracon in theCharlotte, North Carolina office. He has experience inbuilding enclosure testing, roofing design, above andbelow-grade waterproofing, and contract administration.Jeff can be reached at (704) 594-8939 orJeff.Poe@terracon.com.

(AIR BARRIER TESTING Continued from pg. 3)

A computer records the flow through the fans and dictates to the controllers what the required pressures shall be throughout the test.

The Importance of SafetyDealing with waterproofing materialthat is 450 degrees takes trueattention to safety. If the materialcomes in contact with skin, it cancause high degree burns.Chamberlin’s crew members donnedleather gloves and long sleeve shirtsin addition to standard PPE.Additional precautions were taken,such as taping the sleeves of theirshirt to their gloves and tucking theirpants into their boots so the hotproduct could not drip onto their skin.

Chamberlin had a dedicated crewmember to man the kettle that meltedthe hot fluid-applied waterproofing.Starting two hours before the rest ofthe crew members, he got the kettlefired and the material melting. Heworked diligently throughout theday to keep the waterproofingmaterial at the correct temperaturefor application, as it has to be heatedto an exact temperature to bondcorrectly. He also stayed after workwas completed for the day to ensure

the propane tanks were off and thematerial was cooling safely.Throughout the duration of theproject, the kettle area wasbarricaded off for protection ofthose working around it.

A Real Team EffortChamberlin was on a fast-pacedschedule from the get-go on thisproject. They proactively worked tocomplete their scope in just twoweeks. In addition to creating a detailto solve the potential dual-phaseissue, they added additionalmanpower and worked overtime tokeep the project on schedule. Greatcommunication and collaborationfrom Flintco was a tremendous asset.In the end, Chamberlin appliedapproximately 11,000 square feet ofhot fluid-applied waterproofing to thesplit slab at the hospital entranceleaving the area watertight and themedical equipment protected in thebasement below. Teamwork trulymade this project a success.

The National Roofing ContractorsAssociation (NRCA) recognizedChamberlin Roofing & Waterproofingat the 129th Annual Convention heldin Orlando, Florida for excellentworkmanship and safety in severalcategories. Curtis Purvis, ChamberlinSuperintendent, was chosen asa Roofing Industry Alliance forProgress’ Most Valuable Player inleadership, safety and communityservice. This MVP awards programidentifies outstanding roofingworkers who are role models anddemonstrate work-related andpersonal goals to which othersaspire. In addition, Curtis washonored with Professional Roofing’sBest of the Best Award. Thisprestigious award is given to only

one professional in the country.

The Gold Circle Awards programrecognizes NRCA members forexceptional contributions to theroofing industry and uniqueroofing-related jobs. Chamberlinwas honored with two Gold Circleawards, both for their work on theDallas Love Field Modernizationproject. They received an honorablemention in Outstanding WorkmanshipLow-Slope category and also thehighly sought after Gold Circle SafetyAward. This safety award recognizescompanies for an accident-freeproject where public protectionchallenges were in the forefront ofthe job elements and dominated thescope of work.

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Employee ProfileAndy WhartonVice President — Waterproofing & CaulkingDallas, TX

Experience:An Aggie through and through, Andy graduated from Texas A&M with adegree in Architecture. In an effort to put his education to good use, hesought out a job in the A/E/C industry. On a road trip to Dallas aftergraduation, Andy discovered a job opening at Chamberlin, appliedand was brought on as a project manager in the Waterproofing &Caulking Department.

Andy has gained extensive knowledge and experience in the waterproofingfield over the past 11 years, working on notable projects like Baylor McLaneStadium and Parkland Hospital. He progressed to senior project manager andnow oversees waterproofing and caulking operations for Chamberlin’s NorthTexas and Oklahoma markets as a vice president.

A Day in the Life:The one thing Andy can count on doing every day is problem solving. Hiswork takes him from the office to jobsites to clients’ offices to suppliers – youname it – but wherever he is, he is solving problems. Andy works hard toanticipate Chamberlin’s clients’ needs, communicate those needs clearlywith his team and find a solution that is right for the client. Whether it be inperson or over the phone, he works meticulously to ensure all work is beingdone safely, correctly and as productively as possible.

Andy appreciates the opportunities his job provides for continued learningand training. His door is always open to all of his employees, and he ensuresthey have the tools and knowledge they need to get their job done right.He is happiest when he and his team do their best and succeed in makinga project easier for the client. He considers his greatest accomplishment atChamberlin to be helping others succeed.

Outlook:Andy knows that without a high level of customer service, we won’t havecustomers. And without customers, we won’t have work. Andy strives todevelop a good, honest relationship with every client he encounters, listeningto their needs and providing a team approach to executing their projectsuccessfully. He believes productivity is a product of being safe and doing aquality job as a team. But above all, safety is most important. Getting ouremployees - and the employees of the trades we work around – home safelyevery day is his top priority. He drives this mindset down through his teamat Chamberlin, making sure everyone from project managers to installersunderstand the importance of safety on the jobsite.

Outside the office:If you are looking for Andy outside the office, he is more than likely spendingtime with his baby boy. Asher is the Wharton’s first child and an absolute joy.When he can squeeze it in, you might find Andy shooting hoops or playinggolf. He also has a knack for fixing up antique cars and bicycles.

We asked Andy to choose his favorites from this random list of things as a way to get to know him a little better:

(INTEGRIS BAPTIST MEDICAL CENTER Continued from pg. 3)

Chamberlin Receives NRCA Awards

Curtis Purvis, Chamberlin Superintendent, accepts the NRCA’s “Best of the Best” Award.

Curtis Purvis and Deric Mount, ChamberlinProject Manager, accept the the NRCA Safety Award.

PROjECTS IN PROGRESS

lOCATIONS:

Call the nearest local office or 1-800-749-1432

hOUSTON

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9035-E Aero St. San Antonio, TX 78217 Ph. (210) 822-6536Fax (210) 822-8211

499 SHERIDAN – OKLAHOMA CITY, OKNew Construction waterproofingContract Amount: $1,700,000 (approx.)Owner: BA Leasing BSC, LLCArchitect: Kendall/Heaton Associates, Inc.General Contractor: JE Dunn Construction CompanyScope of Work: Hot fluid-applied rubberized asphalt, vertical sheet waterproofing, pre-applied sheet waterproofing, cementitious and reactive waterproofing, traffic coating, vapor retarders, air barriers, joint sealants, expansion joints, mechanical floor coating and paving sealantsProject Description: Twenty-seven story office tower

THE GATHERING PLACE – TULSA, OKNew Construction waterproofingContract Amount: $1,300,000 (approx.)Owner: Crossland Construction CompanyArchitect: Michael Van Valkenburgh Associates General Contractor: Manhattan Construction CompanyScope of Work: Hot fluid-applied rubberized asphalt waterproofing, sheet waterproofing and tunnel waterproofingProject Description: Park and recreational area

THE ASCENT AT VICTORY PARK – DALLAS, TXNew Construction Roofing & waterproofingContract Amount: $1,750,000 (approx.)Owner: GreystarArchitect: Good Fulton & Farrell ArchitectsGeneral Contractor: Hoar ConstructionScope of Work: Dampproofing, hot fluid-applied rubberized asphalt waterproofing, pre-applied sheet waterproofing, bentonite waterproofing, traffic coating, thermal insulation, fluid-applied waterproofing, air barriers, sheet metal flashing and firestoppingProject Description: Two apartment and retail towers

GASTON MEDICAL OFFICE BUILDING – DALLAS, TXNew Construction Roofing Contract Amount: $500,000 (approx.)Owner: Gaston Medical Office BuildingArchitect: Corgan Associates, Inc. General Contractor: Turner Construction Company Scope of Work: TPO roofing system, formed sheet metal fabrications, counterflashing, coping, flashing and sheet metal, cap wall and curb flashingProject Description: Medical office and parking garage

DELL PEROT BUILDING – PLANO, TXRemedial Roofing & waterproofing Contract Amount: $600,000 (approx.)Owner: Dell Marketing, LPArchitect: Corgan Associates, Inc. General Contractor: DellScope of Work: Removal of EPDM roofing system and installation of new TPO roofing system, flashing and sheet metal, coping, joint sealants, crystalline waterproofing, exterior insulation, thermal and moisture protection, painting and coatingProject Description: Business campus and parking garages

Also licensed in Arkansas, Louisiana andNew Mexico.

ROOFING/ShEET METAl wATERPROOFING/CAUlkING ROOF MAINTENANCE/lEAk REPAIR• Roofing & waterproofing expertise• Leak repair specialists• Preventative roof maintenance plans• Roof & building envelope surveys• Proactive Roof Asset Management • On call service 24 hours/365 days a year• Free estimates

• Modified Bitumen/BUR• Single ply • Reflective coatings• Vegetative roofing• Metal standing seam• Roof related sheet metal• Tile

• Joint sealants• Membrane waterproofing• Elastomeric wall coatings• Traffic coatings• Expansion joints• Dampproofing/flashing• Water repellents/metal flashing

BUIlDING/GARAGERESTORATION• Concrete/Masonry restoration• Exterior cleaning & coating• Epoxy & grout injection• Bearing pad replacement• Structural repair• Paver repair & replacement

For a complete list of specialty contracting services, visit www.chamberlinltd.com.

AUSTIN PUBLIC LIBRARY – AUSTIN, TXNew Construction RoofingContract Amount: $1,100,000 (approx.)Owner: City of AustinArchitect: Lake Flato/ Shepley Bulfinch- A Joint VentureGeneral Contractor: Hensel PhelpsScope of Work: Single-ply roofing system, sheet metal and flashingProject Description: New library and community space

TEXAS STATE UNIVERSITY SABINAL BUILDING – SAN MARCOS, TX

Remedial Roofing & waterproofingContract Amount: $200,000 (approx.)Owner: Board of RegentsArchitect: Lym Architecture Consultant: Wiss, Janney, Elstner Associates, Inc.General Contractor: VaughnScope of Work: SBS modified roofing system and associated sheet metal flashings, dampproofing, cold fluid-applied waterproofing, joint sealants, weather barrierProject Description: Renovation of J.C. Mitte Art Building and Sabinal Building

MAIN METHODIST HOSPITAL – SAN ANTONIO, TXNew Construction waterproofing Contract Amount: $1,400,000 (approx.)Owner: Methodist HealthcareArchitect/Consultant: ESaGeneral Contractor: SkanskaScope of Work: Flashing, air barrier, joint sealants, expansion joints, cold fluid-applied waterproofing and below-grade waterproofingProject Description: New children’s tower and central tower addition, and expansion of the NICU

HERMAN PARK RESIDENCE – HOUSTON, TX New Construction Roofing & waterproofingContract Amount: $1,500,000 (approx.)Owner: Tema DevelopmentArchitect: Corgan Associates IncGeneral Contractor: Morganti Group IncScope of Work: Crystalline waterproofing, thermal coating, air barrier, flashing, joint sealants, caulking, traffic coating, expansion joints, single-ply roofing, sheet metalProject Description: New seven-story luxury apartments

HANOVER MONTROSE – HOUSTON, TXNew Construction waterproofing   Contract Amount: $950,000 (approx.)Owner: The Hanover CompanyArchitect: Solomon Cordwell BuenzGeneral Contractor: Hanover ConstructionScope of Work: Cold fluid-applied waterproofing, elevator pit waterproofing, traffic coating, air barrier and flashing Project Description: New 30-story luxury apartments