The New Parkland Hospital Is Already a Dallas Landmark

Parkland Memorial Hospital is located on a 64-acre health care campus in Dallas. The 2.1 million-square-foot complex includes an 862-bed, full-service acute-care facility. Photos: Aerial Photography Inc.

When it was time to replace the Parkland Memorial Hospital — a Dallas, Texas, landmark constructed in 1954 that served as a safety-net facility for Dallas County for over half a century, and which held notoriety as the location where President Kennedy was rushed after being shot in 1963 — everyone recognized they would be undertaking a high-profile project. This became even more apparent when the plans for a new Parkland hospital were unveiled: a 2.1-million-square-foot, 17-story, state-of-the-art, 862-bed, full-service acute-care facility located on a 64-acre health care campus in the Southwest Medical District. The $1.33 billion project resulted in one of the largest health care facilities ever constructed as a single project.

Because of the scale of the new Parkland hospital project and the fact it was being funded with public dollars, a conservative and careful approach to the planning was paramount. A planning and construction team was assembled to tackle the mammoth project, which included two architecture firms — HDR Inc. and Corgan Inc. — and four large contracting firms — Balfour Beatty, Austin Commercial, H.J. Russell & Company and Azteca — that formed a joint partnership called BARA for the job. A “collaborative project delivery” model was adopted to keep all the stakeholders on the same page, which included the designation of a central “co-location” office where members of various involved firms could meet, collaborate and concur on direction. Numerous consultants were brought in, and through a careful planning process over a period of two years, designs, material specifications and additional partners were analyzed and selected.

At a cost of $1.33 billion, Parkland Memorial Hospital is one of the largest health care facilities ever constructed as a single project. A two-ply SBS-modified bitumen roofing system was chosen for its durability and longevity. Photos: Aerial Photography Inc.

Early in the planning process, SOPREMA’s local sales partner, Conner-Legrand Inc., was brought into material specifications discussions with the architects and contractors planning the project. The planning team recognized the importance of finding the “best roof they could put in place” for this critical environment that was designed to last for decades. After numerous rounds of careful vetting, a final qualified roofing system was chosen that fit that criteria: a SOPREMA-manufactured, high-performance, two-ply, SBS-modified bitumen roofing system.

“Consistency and reliability in the marketplace don’t develop overnight, and in the case of a project like the new Parkland hospital, everyone accounts for that,” says Luke Legrand of Conner-Legrand Inc. “You’re dealing with the most discerning audience you can imagine, and while it takes time to make decisions, the final choice of materials speaks volumes. The decision-makers wanted one reputable manufacturer that could provide everything from the primer to the cap sheet and offered a strong warranty, and not every manufacturer has the horizontal and vertical breadth to provide that. In this case, however, the planning team found what they were looking for in SOPREMA.”

Raising the Roof

The new hospital featured flat rooftops at multiple levels that all needed to be made watertight for decades to come. The roofing system needed to be designed in a way that accounted for a helipad, consistent rooftop traffic, extensive rooftop equipment, lightwells and various utility platforms. A lot stood in the way of Anchor Roofing, the installer, but the meticulous planning for the project meant that all contingencies had been considered by the time application of the waterproofing system began.

After installing insulation, a vapor barrier and SOPRABOARD, the Anchor Roofing team started on the two-ply roofing application. They first put down a layer of SOPRALENE Flam 180 SBS-modified bitumen base-ply membrane to provide waterproofing protection for the building. The various other tradespeople who needed to work on the rooftop could then go about their business, and any necessary repairs were made to the waterproofing base layer before a SOPRASTAR Flam SBS-modified bitumen reflective cap ply layer was installed on top. The chosen cap layer was not only functionally strong and long-lasting, but also white and highly reflective, providing energy savings and ultimately contributing to the hospital’s achievement of LEED Gold status from the U.S. Green Building Council.

The two-ply SBS-modified bitumen roofing construction was also chosen because the waterproofing system can be easily refreshed 25–30 years down the road to extend the roof’s lifecycle without a full tear-off. The foundation of the system can stay intact while the top layer is rejuvenated, giving the option for an additional warranty and ensuring the building is protected against the elements for another 20–30 years. This not only helps the health system to save money in the long run and avoid contributing unnecessary waste to landfills, but also helps the hospital avoid disruption to operations in a sensitive environment where recovering patients must be protected from invasive construction processes.

A Dallas Landmark

Throughout the course of construction, 162 professional staff members and 1,400 on-site workers collaborated to construct the new Parkland hospital. It was officially dedicated in March 2015, and patients and staff had all moved in by August. The facility now averages more than 1 million patient visits per year, with roughly 30,000 people traveling through its doors each day. The roof has performed well, and all stakeholders in the project have felt confident that the right waterproofing system for the job was chosen. Given the careful planning, beautiful design and strong material choices that went into the project, it has already received a number of awards and is well positioned to remain a Dallas icon for decades to come.

TEAM

Architects: HDR Inc., Dallas, Texas, www.HDRinc.com, and Corgan Inc., Dallas, www.corgan.com
General Contractor: BARA, a joint venture partnership formed by Balfour Beatty, Austin Commercial, H.J. Russell & Company and Azteca
Roofing Contractor: Anchor Roofing, Fort Worth, Texas, www.anchor-roofs.com

MATERIALS

Modified Bitumen Base Ply: SOPRALENE Flam 180 SBS, SOPREMA, www.soprema.us
Modified Bitumen Cap Sheet: SOPRASTAR Flam SBS, SOPREMA
Cover Board: SOPRABOARD, SOPREMA

Hospital Pedestrian Overpass Poses Logistical and Safety Challenges

The elevated pedestrian walkway at the BJC Healthcare/Washington University Medical Center complex connects the parking garages to buildings in the medical campus. It is approximately 1,200 feet long. Photo Paric Corporation and KAI Design & Build.

“The more complicated and complex the project, the more it is up our alley,” says Drew Bade, project manager for Bade Roofing Company in St. Louis, Missouri.

The company’s recent work roofing the new 1,200-foot-long elevated pedestrian walkway at the BJC Healthcare/Washington University Medical Center complex in St. Louis certainly qualifies as complex. The fully enclosed walkway connects the parking garages to buildings in the medical campus. Constructed atop 14 concrete pillars at an elevation of approximately 40 feet over busy roadways, the 13-foot-wide structure posed obvious logistical and safety challenges.

Bade Roofing’s union-affiliated workforce focuses on commercial projects, and the lion’s share of the company’s work is in the re-roofing arena. But for this new construction project, designed and executed through a joint venture between KAI Design & Build and Paric Corporation as part of a long-term project to update the medical campus, Drew Bade knew his company was the right candidate for the roofing portion of the job. The successful roofing installation proved him right. “We teamed up with Paric and KAI and made this thing happen,” says Bade.

The Roof System

The heated and air-conditioned walkway features carpeting, LED lighting, security intercoms, windows and metal wall panels. It also features a durable roof system. “It’s a walkway, but this thing was built like a tank,” notes Bade.

The walkway was constructed atop 14 concrete piers that elevate it over busy roadways. Photo Paric Corporation and KAI Design & Build.

The roof is a Firestone TPO system that includes R-20 polyiso insulation and a half-inch DensDeck cover board from Georgia-Pacific. The 60-mil UltraPly TPO membrane was attached using Firestone’s InvisiWeld induction welding system. The base of the system is the walkway’s 18-gauge steel deck, which features interior drains, scuppers and downspouts. Tapered insulation was used to provide proper drainage.

To make the project’s logistics even more complicated, work was scheduled on the fly as different areas of the walkway were completed. “There were some areas that weren’t built yet when we started to put this roof on,” Bade recalls. “It was a fluid situation. It was a challenge just to keep up with the changes, and we had to bounce around a lot. We couldn’t just start at one end and roof our way over to the other end. We had to hop around and handle what was finished at the time, tying the sections in together as they were completed.”

The short parapet walls were capped with edge metal after the roof was installed. “In some spots, after the roof was put on, it was more like a drip edge than a parapet,” Bade says. “At the highest, it was about 8 inches. We installed edge metal that tied into the metal wall panels they used on the sides of the bridge. It was all integrated together.”

Loading components proved tricky. “Getting material to each section and moving it around was a challenge in itself,” Bade explains. “We had to coordinate certain time frames that we could get our crane into an area to drop the material off. Because of how the safety systems were set up and how narrow this bridge was, you couldn’t really transport material along it very far. The crane essentially had to put the material right where it was going to go for that day.”

Loading the roof was usually done first thing in the morning, as use of the crane could mean blocking off roads or going into gated areas. “We’d try to beat all of the other trades in there,” Bade says.

The Safety Plan

The key to executing the project was finding the right safety plan. Initially the team explored the use of a

The Beamguard lifeline system from Guardian Fall Protection was installed in the center of the roof deck by workers in a boom lift. Photo Bade Roofing Company.

temporary guardrail system, but it proved infeasible due to the short parapet walls. “We use temporary guardrails on almost 100 percent of our projects, but the engineer came back and said the parapet walls weren’t strong enough to support a guardrail system,” Bade recalls.

The company looked for other options. “We looked at a special system that is more commonly used on road bridges during construction,” he says. “It uses a cable that runs between stanchions, and crew members can clip off to the cable.”

The system chosen was the Beamguard lifeline stanchion system from Guardian Fall Protection. The posts were attached to the steel I-beams every 30 feet. “We had to cut the metal deck out and clamp the posts to the I-beams,” Bade explains.

Crew members’ personal fall arrest systems were connected to the lifeline, but only two workers could tie off to the cable in between the stanchions. “We were tied off 100 percent of the time,” Bade says. “Safety was a huge issue for everyone on this project. There were no warnings. Everyone knew that if someone wasn’t tied off, they’d immediately be thrown off the job.”

The stanchions for the lifeline system were attached to the steel I-beams under the roof deck. Photo Bade Roofing Company.

The cable system posed some limitations on crew movement, which affected the delivery of materials. “With the cable system, you could only go so far because only two people could be tied off to a 30-foot section at a time. Essentially you had two guys walking 30 feet to hand insulation boards to the next two guys. It was kind of like a chain gang, moving material down each section of the roof.”

Ensuring the safety of pedestrians and vehicles below was also crucial. “There was a sidewalk area in the parking garage that was fully functional during the project, as there was a walkway constructed of scaffolding that offered overhead protection,” Bade notes.

However, other areas of sidewalk and roads had to be closed in order to complete work on some sections. “It depended where you were working that day,” Bade says. “Some areas of sidewalk had to be closed, and sometimes we had to redirect traffic. If you were working in areas without scaffolding, you would have to have two guys on the ground with flag lines directing traffic and blocking people off.”

One crucial section over a busy road posed some additional challenges. The three-lane road could only be shut down on one weekend. All of the trades had to complete their work that weekend, so the roofing installation had to be completed in just one day. “We did a 120-foot stretch of the roof that crossed this main road, and we did it all on a Saturday. It was the only opportunity we had. Otherwise we would’ve had to pay to shut the road down lane-by-lane, as we went. We were lucky that we were able to get in there on that one day and finish the whole length.”

The roofing installation was completed in sections as they were constructed after the 18-gauge steel deck was in place. Photo Bade Roofing Company.

Communication between all of the companies involved in the project was essential, notes Bade. “The foremen for every trade met every morning before work started. All of the contractors on the project had their meeting every week to plan and go over everything,” he says. “There were multiple forms you had to fill out every morning. The paperwork on this project was flying like you wouldn’t believe.”

After the work was completed in each section, the safety system had to be disassembled and removed. The last chore completed on each portion of the roof was to fill in the patches of roofing material where the stanchions had been. Workers completed these last steps tied off to a snorkel lift.

Despite the logistical hurdles, the project went smoothly and feedback has been positive, notes Bade. “It ended up being a great project for us,” he says. “It turned out really nice.”

It’s just another tough project now in the rear-view mirror. “The coordination, the safety, and the complexity of the actual roof system itself — not that it was necessarily a difficult roof to install, but given where it was, and how difficult it was to access — it all shows how dedicated and skilled our company is,” Bade concludes. “I don’t think there are a lot of companies out there that could do this project.”

TEAM

Architect: KAI Design & Build, St. Louis, www.kai-db.com
General Contractor: Joint venture between KAI Design & Build and Paric Corporation, St. Louis, www.paric.com
Roofing Contractor: Bade Roofing Company, St. Louis, www.baderoofing.com

MATERIALS

Membrane: 60-mil UltraPly TPO, Firestone Building Products, www.firestonebpco.com
Cover Board: DensDeck, Georgia-Pacific, www.densdeck.com

During Hospital Expansion, Contractor Protects Patients – and the Environment

The recent expansion of Pella Regional Health Center included adding a new third floor to the hospital. Photos The Duerson Corporation.

It’s not often a roofing contractor installs a new roof on a building before removing the old one, but that was just one of the wrinkles encountered by The Duerson Corporation during the recent expansion of Pella Regional Health Center in Pella, Iowa. The project involved adding a new third floor to the existing two-story hospital without disrupting the care of the patients below.

Protecting patients and meeting the needs of the hospital were the top priorities on the project, but another key focus was sustainability. Thanks to the initiative of The Duerson Corporation and Duro-Last, the roof system manufacturer on the project, almost all of the components on the existing roof were recycled, including the membrane, insulation, screws and plates.

The Game Plan

Based in Altoona, Iowa, The Duerson Corporation has been in business since 1986, specializing in commercial and industrial roofing, both new construction and retrofit. Kirk Duer, the company’s president, and Tanner Duer, head of business development, shared their insights on the Pella Regional Health Center Project with Roofing.

The Duro-Last roofing system included a vapor barrier, polyiso insulation, a cover board, and 50-mil white PVC membrane. Details included custom-fabricated curb flashings, walkway pads, and edge metal. Photos The Duerson Corporation.

They note that the goal on every project is to meet the client’s needs. “The hospital is a good example of that,” Kirk notes. “We took care of some maintenance and leak issues in the beginning, and then as time went on and trust was established, we did some re-roofing projects for them. Then they did this addition. It all flowed very well together.”

In a nutshell, the expansion plan involved erecting the steel for the new third floor, adding the roof deck, and installing the new roof system. The existing roof was left in place during this phase of construction, as the hospital was still active. After the walls were completed, the old roof system could be removed and recycled, and finally the interior work could be completed.

The first step involved erecting the steel for the new third floor. Kirk credits the hospital administrators for detailed planning before the project even got underway. That was the reason the existing roof was home to multiple 2-foot-by-2-foot boxes, complete with curbs and flashing.

Kirk Duer (left) and Tanner Duer of The Duerson Corporation in Altoona, Iowa, made sustainability a key focus of their business after they started recycling PVC membrane as part of Duro-Last’s Roof Take Back Program. Photos The Duerson Corporation.

“Those boxes covered the steel from the I-beams that were coming out of the roof, ready to receive that third floor,” Kirk notes. “When those boxes were removed, they just took their new steel and went up. It’s one of the more unique things I’ve ever seen in my history in the industry.”

As the steel went up, flashing the newly exposed I-beams was the first phase of the roofing work. “In the very beginning, once the general contractor removed those boxes, we added membrane and insulation around the I-beams and made sure they were watertight while the steelworkers erected their steel,” Kirk notes. “It was critical to keep it watertight because they still had patients right beneath us.”

Installing the New Roof

The new roof system covered an area of 27,600 square feet, bordered on one side by a long, curved parapet. The roof was installed over a structurally sloped steel deck with internal drains. “The first thing we did was install a vapor barrier over the entire deck,” Tanner notes.

The system consisted of Duro-Guard polyiso insulation with an R-value of 30, DensDeck cover board, and 50-mil Duro-Last white PVC membrane. Details included custom-fabricated curb flashings, Roof Trak III walkway pads, and coping and edge metal from Exceptional Metals.

Hospital administrators wanted a warranty from one source, notes Kirk. “Duro-Last refers to it as edge to edge, deck to sky,” he says. “Every component is supplied by Duro-Last and warranted by them for a full-system warranty. This particular administrator is adamant that this is what he wanted, and that’s what we delivered for them.”

Weather was not an issue, but the crews had to be ready to move quickly in the event of emergencies. “Work took place in September and October, which is about the most beautiful time of the year for us,” says Tanner. “The only unusual thing was that we had to have walkie-talkies on us at all times so they could alert us whenever a helicopter was coming in. Plant ops would notify us when a helicopter was coming in, and basically anything we had in the air we had to move down to the ground. We obviously wanted to make sure Pella Regional was not going to have a problem with us when a patient was flying in.”

After the metal roof deck was in place, crews installed a vapor barrier. Photos The Duerson Corporation.

The roofing installation was pretty straightforward, notes Kirk. There was one area on the lower roof that was an exception, as the new construction blocked access to the drains. “Originally the roof sloped in one direction, but because of the design of the new part of the building, we had to change the slope,” he says. “We had to turn everything around so water would flow in the other direction.”

On this section, the existing roof was torn off and removed, and tapered insulation was used to provide the proper slope. It was installed on a concrete deck over a working section of the hospital, so the installation was a bit tricky. “Rather than starting at the drain, which would be the easiest thing to do, we had to start at the furthest point away,” Kirk notes. “We were adding so much insulation, we didn’t want to create a bathtub, if you will. We had to start at the high point and work our way downhill so when we got to the drain, we’d have the correct elevation.”

Recycling the Old One

Once the third floor was closed in for the winter, it was time to remove the existing roof. “That was the fun part,” Tanner says.

The old roof was removed through a window. “We had an opening that was approximately 5 feet wide and 4 feet

The new roof system covers 27,600 square feet of the new third floor in an area bordered on one side by a long, curved parapet. Photos The Duerson Corporation.

tall,” Tanner recalls. “We took a fork lift with a BOXhaul on it and basically went up to the outside of the window and stuck it in there as far as we could without damaging any of the structure and started removing the material.”

No gas-powered vehicles were allowed to operate in the interior space. The fasteners had to be unscrewed and separated by hand. “When we removed the material, we tried to cut along the seams so we could see the screws and plates,” notes Tanner. “We sorted those out, and in the end we had more than 1,000 pounds of screws and plates we took back to our shop to be recycled.”

The existing membrane was cut up into 5-foot strips. Sections were rolled up and bundled for removal using a portable bander. Once the BOXhaul was full, it was taken to a flatbed trailer. “We completely filled the 20-foot trailer with old material to be recycled,” Tanner says. “In the end, there was 7,200 pounds of Duro-Last membrane that we recycled.”

The membrane was recycled as part of Duro-Last’s Roof Take Back Program. The company recycles the membrane, using it to construct products including walkway pads. “We’re lucky enough to have a Duro-Last plant in our state, and I actually took that load of material to be recycled to Sigourney one day,” Tanner says. “When I got there, they took a fork lift out there and unloaded it for me.”

The expanded polystyrene insulation was also removed and recycled. It was taken to Insulfoam, the original manufacturer. “The insulation necessitated a few more trips because it was so bulky,” Tanner says. “We kept an empty tractor trailer on site. In the end, we filled up three of those with approximately 120,000 board-feet of insulation that we took off of that project.”

The membrane that once covered the existing roof was cut into strips and rolled up for transport to the plant for recycling. Photos The Duerson Corporation.

The Duerson Corporation recycles as much material as it can throughout the year, including scrap metal and PVC membrane, which is stored in Duro-Last approved containers until there is enough to be transported to the plant.

“I thank Katie Chapman at Duro-Last for getting this program up and running and making us aware of it,” says Kirk. “Otherwise, that material would’ve just ended up in a landfill.”

Participating in the membrane recycling program was an eye-opener for everyone at the company. “One thing leads to another,” Kirk says. “We started recycling the roof membrane, and then you realize that there are other things you should think about. What do we do with the insulation? What do we do with the screws and plates? We started looking for ways to recycle everything, and pretty soon a full-blown sustainability program is born. It really does change the way you think once you buy into the system.”

The New Floor of the Hospital

After the general contractor removed the old vapor barrier with a floor scraper, the new third floor section was converted into a brand-new, pristine Obstetrics and Gynecology unit. The difference between the construction site and state-of-the-art hospital wing is striking.

The third floor of the hospital now houses a brand-new Obstetrics and Gynecology unit. Photos The Duerson Corporation.

“What we knew as the concrete roof deck was also designed to serve as the finished floor of the hospital,” Kirk says. “The new O.B. unit is just beautiful. If you look at that you can’t even imagine, unless you’ve been through the whole process, that the area with carpet and tile you’re looking at months ago used to be the roof.”

Safety for the roofing crews is always a priority at The Duerson Corporation, but safety precautions on this project also included ensuring the safety and security of the people in the hospital. “It was critical that we were always aware of the patients underneath us,” Kirk notes. “We had to be very mindful about the positioning of our generators, for example, so the exhaust wouldn’t be sucked into the fresh air intakes.”

Tanner points out that a checklist is prepared for each project to make sure everyone is aware of the client’s needs. This is especially important in health care projects like this one. “If someone goes out to take care of a leak call, for instance, we make sure they know everything they need to know to keep the client happy,” Tanner says. “With a health center, you have to take extra precautions. This can include items like making sure when you’re walking across the open roof that you don’t look into a patient’s room.”

“We’ve learned a great deal from working with Pella Regional Health Center in terms of just how mindful of everything we need to be,” Kirk says. “We recognize each of our clients, even though they all have a roof over their head, they all do something different for a living. In reality, everybody in any trade needs to recognize what your client does and what you need to do to be mindful of that.”

It takes communication to understand clients’ needs and build long-term relationships with customers. “We’ve got clients that we’ve serviced for 26 years,” Kirk says. “We’re all here to serve other people. In our case, it’s in roofing. Whether it’s a hospital or a convenience store, we’re serving them, and it all starts with that relationship.”

TEAM

Architect: Shive Hattery Architecture & Engineering, West Des Moines, Iowa, www.shive-hattery.com
General Contractor: Graham Construction, Des Moines, Iowa, www.grahamconstruction.com
Roofing Contractor: The Duerson Corporation, Altoona, Iowa, www.duersoncorporation.com

MATERIALS

Membrane: 50-mil Duro-Last white PVC membrane, Duro-Last, www.durolast.com
Insulation: Duro-Guard Polyiso, Duro-Last
Vapor Barrier: Duro-Last Vapor Barrier, Duro-Last
Coping: Coping and 2-piece edge metal, EXCEPTIONAL Metals, www.exceptionalmetals.com
Cover Board: DensDeck, Georgia-Pacific, www.densdeck.com

Metal Roof and Wall Panels Add Sleek, Modern Look to New Medical Complex

The CHRISTUS Trinity Mother Frances Herrington-Ornelas HealthPark in Tyler, Texas, houses an urgent care clinic, medical offices, a physical therapy area and a fitness center. Photos Petersen.

When Brice Harris of Harris Craig Architects began designing a new health complex in Tyler, Texas, he knew his client wanted to maintain continuity with the company’s other medical facilities but at the same time update the look. The roof and wall panel systems became the key to meeting both design goals.

The standing seam metal roof and metal wall panel systems are now the signature architectural features of the CHRISTUS Trinity Mother Frances Herrington-Ornelas HealthPark. The new construction project encompasses some 43,000 square feet of space housing an urgent care clinic, medical offices, a physical therapy area and a fitness center.

The Design

Harris Craig primarily focuses on institutional projects, including schools. About a quarter of the firm’s work involves health care facilities. On this project, a merger while it was underway added a few wrinkles in the design process.

Crews from Tyler Roofing installed the metal wall panels, which included PAC-CLAD HWP panels and PAC-CLAD flush panels from Petersen, as well as Longboard Siding in Dark Cherry Wood Grain from Mayne Coatings Corp. Photos Petersen.

“The hospital system is CHRISTUS Trinity Mother Frances,” Harris notes. “When we began work on the project, it was for Trinity Mother Frances, and they partnered up with another hospital network, so part of the challenge on this job was switching the branding in the middle of the project. Luckily our overall design fit very well. The branding changes were more prominent on the inside of the building and didn’t have much effect on the exterior design.”

The property is strategically located at the intersection of two busy roads, and the highly visible site posed some concerns. “We really didn’t have a back of the building,” Harris explains. “The challenge of the design really was to efficiently present this building well both to the street and to the people who would be approaching it from the opposite side. That actually drove a lot of how the building form turned out, along with our desire to both help modernize the look of the clinic a little bit and to tie it back to some of the existing branding.”

The roof was designed to echo the other structures but uses different materials. “They share the prominent use of the gable on the building, but here we brought it forward into a contemporary design aesthetic,” Harris says.

For this project the design team specified a standing seam metal roof manufactured by Petersen that encompasses approximately 6,000 square feet. Low-slope roof sections over each wing were covered with 60-mil TPO roof system manufactured by GAF.

Wall panels were used to extend the sleek, modern look down to the ground, in contrast to the many brick buildings in the area. “We wanted to lighten up the look a little bit and bring in some new materials as part of the modernization,” Harris says. “We have composite panels, horizontal panels, and wood-look aluminum panels.”

Key concerns included making sure the various systems tied together perfectly. “The transition between the wall and roof is a very important detail for us,” Harris notes. “The most complicated areas for us on this project would be at the front of the building with the big glass windows and composite panels, and areas where the composite panel ties into the TPO roof and the metal panels. That was probably the trickiest part of the design.”

The Installation

Tyler Roofing was a natural fit for the project due to its established relationships with the architect and general contractor, WRL General Contractors, headquartered in Flint, Texas. “We do a lot of work in Tyler, and we’ve worked on a lot of Harris Craig projects,” says Tommy Ray Sukiennik, a 24-year veteran at the company, which was founded by his father and uncle 35 years ago. “We’re one of the competitive contractors in our area.”

Herrington-Ornelas HealthPark is located at a busy intersection and is visible from all sides, so the building was designed to present itself well to every vantage point. Photos Petersen.

The company’s share of metal roof and wall panel work is increasing, notes Sukiennik. “We’ve been doing standing seam roofs for more than 20 years. Lately we’ve been doing a lot of wall panels — Petersen HWP wall panels, flush mounts, things like that. As far as metal goes, we try to be diverse enough that we can install any system that comes out on the plans.”

Tyler Roofing installed the roof systems and wall panels on the project, along with gutters, soffits and trim. Work began with the fully adhered GAF EverGuard TPO roof system, which was installed over the metal deck, 4 inches of polyisocyanurate insulation and a half-inch cover board. The low-slope roofs over the wings house the HVAC units, but details involved were straightforward, notes Sukiennik. “It was all pretty basic,” he says. “At some points we had to tie in the TPO roof, the metal on the parapet wall, and the metal on the exterior wall all together.”

To dry in the gable roof, crews installed 4 inches of polyiso insulation and a self-adhering waterproofing underlayment. They also installed custom-fabricated gutters. “We built a gutter that hangs off the edge of the eave that a starter clip goes on top of, so it’s integrated into the roof,” Sukiennik notes.

The 18-inch-wide, 24-gauge PAC-CLAD Snap-Clad roof panels in Champagne Metallic were delivered to the site. “We order all of the panels to length from Petersen,” Sukiennik says. “One of the plants is here in Tyler, and actually not far from the job, so it was very convenient. All of the rest of the trim, parapets, wall flashings and components we fabricated ourselves in the shop with metal they supplied.”

The roof panels were raised to the roof using a SkyTrak lift with specially built cradles. The wide-open jobsite and the flat roofs on either side of the gable made the roof area easily accessible. “It was just a straight run gable roof. There are no penetrations in the standing seam,” Sukiennik says. “The panels are easy to install. The Snap-Clad panels just pop together.”

The standing seam metal roof and metal wall panels were used to give the complex a modern look, while the prominent gable roof echoes the hospital system’s other facilities. Photos Petersen.

Tyler Roofing crews also installed the metal wall panels, which included 16-inch-wide, 24-gauge PAC-CLAD HWP panels in Dark Bronze from Petersen; 12-inch-wide, .032-inch aluminum PAC-CLAD flush panels from Petersen; and 6-inch-wide extruded Longboard Siding in Dark Cherry Wood Grain from Mayne Coatings Corp.

Wall panels were installed using scissor lifts and ladders. “We kept running a laser to make sure everything was horizontal and lined up,” says Sukiennik. “Then we finished it off with the trim and the cap. We tied everything into the expansion joints and trimmed it out so it was as clean as could be.”

The workload on this project was greater than usual, so skillfully managing the crews was important. “Usually we roof a building, and then we have to wait on the other contractors to do the brick and stucco on the exterior, and then we have to come back and trim it out and finish,” Sukiennik explains. “On this project, we did probably 70 percent of the exterior of the building, so we were working on the building continuously while we were doing other projects.”

The good news was that the crews had most of the work under their own control. “There were no issues of expecting someone else to make sure things were done the way we wanted them done. We tied everything in ourselves.”

Work was completed in the summer, so the heat was an issue. “When we put the wall panels on during July and August, it was pretty hot, so we had to work on one side of the building in the morning and then switch sides in the afternoon,” Sukiennik says, noting that his company is used to coping with extreme conditions. “In East Texas, we can have every type of weather there is within three days almost.”

Team Effort

Sukiennik credits WRL General Contractors for the well-coordinated jobsite. “We work on a lot of projects with the same contractors, so we all watch out for each other,” he says. “We do a good job of staying on top of things. We do a lot of work here, and this our family town, so we take pride in our work. We do the best we can.”

On the gable roof, Tyler Roofing installed 18-inch-wide, 24-gauge PAC-CLAD Snap-Clad roof panels cut to length by Petersen. Tyler Roofing also fabricated and installed trim, parapet metal, wall flashings and gutters. Photos Petersen.

Comprehensive details and pre-production meetings ensured the installation was uneventful, according to Sukiennik. “The architect does a good job of making sure everything blends,” he says. “We usually don’t have issues with details and things like that. They try to make it as smooth as could be.”

During construction, members of the design and installation teams stayed in touch to make sure everything went according to plan. “This project was only about a mile from our office, so it was convenient to stop by, and it was a project we were really excited about,” Harris recalls. “We meet frequently with our installers to discuss details. We like to learn what works and what doesn’t work from the crews in the field. We want to listen to the wisdom of the guys who are out there actually doing the work.”

It’s all part of making sure the building owner is satisfied. “What we were excited about for this project was the opportunity to define a new look for CHRISTUS Trinity Mother Frances to help them match the quality of their facilities with the quality of care in Tyler and the region,” Harris says. “We see one of our strengths as building long-term relationships with our clients to give us the opportunity and trust to do that.”

TEAM

Architect: Harris Craig Architects Inc., Tyler, Texas, www.hcarch.com
General Contractor: WRL General Contractors, Flint, Texas, www.wrl-gc.com
Roofing Contractor: Tyler Roofing Company Inc., Tyler, Texas, www.tylerroofingco.com

MATERIALS

Metal Roof Panels: 24-gauge, 18-inch PAC CLAD Snap-Clad Panels in Champagne Metallic, Petersen, www.pac-clad.com
TPO Roof Membrane: 60-mil EverGuard TPO, GAF, www.GAF.com
Metal Wall Panels: 24-gauge, 16-inch PAC-CLAD HWP panels in Dark Bronze, Petersen
Flush Panels: .032-inch, 12-inch Aluminum PAC-CLAD Flush Panels, Petersen
Wood Accent Panels: 6-inch Longboard Siding in Dark Cherry Wood Grain, Mayne Coatings Corp., www.longboardfacades.com