In the Nov. 2014 issue, this magazine detailed how ICF use came to dominate the midrise market in Kitchener/Waterloo, Ontario. This article, the second in the series, outlines how ICFs gained popularity in Arizona’s commercial sector.

ICF use is well-established in Arizona. The hot climate and extreme daily temperature fluctuations make foam-and-concrete construction attractive for energy savings.

Additionally, construction is robust due to the region’s phenomenal growth. For years, Maricopa County—home to the Phoenix/Tempe/Mesa metro area—has ranked among the fastest growing counties in the nation. In 2015 alone, the county grew by 88,000 residents, more than any other county in the United States save one. Other cities—Flagstaff in the north, Tucson to the south, and Yuma in the southwest corner of the state—are also growing quickly.

But it’s more than just the climate and the growth. “The surrounding states just don’t have the level of visibility,” says Chris Dagosta, owner of Efficient Product Solutions, the Nudura distributor for the state. “I’ve worked in the other areas, and really, I don’t think there’s as much exposure.”

Many would credit the Phoenix Diocese of the Catholic Church. Gary Fetters of ICF Specialist, a leading ICF installer says, “The diocese has been a major, major player here, and they still are,” The church has commissioned at least 16 major projects in the past ten years. But the story goes deeper than that.

One large project in Phoenix involved rebuilding an entire school campus. Xavier College Prep High School (top) included a gym, social hall and parish administration building. Adjacent is Saint Francis Xavier Elementary, which has two classes per grade, and a church. The buildings total nearly 180,000 sq. ft.

The five-story Phoenix 911 Emergency Services Center is one of the largest municipal buildings in the area, and used ICF for blast and bullet resistance.

Fire Stations
According to Robert Klob, the first commercial ICF projects in the Phoenix area were actually fire stations. These were built with composite ICFs. At the time, Rastra was headquartered in Scottsdale, and several competitors were nearby. In the early 2000s, as a new generation of robust all-foam blocks became available, distributors tried to get specc’ed for that work.

Ten years ago, Dagosta was one of the energetic sales reps trying to get the Phoenix fire department to make a switch. “They were using a block similar to Rastra at the time,” he recalls. “I was trying to get them to switch to an all-foam ICF. They decided the best way to find out if the claims were true was a direct field comparison.” They had two stations—one in the southern suburb of Chandler, the other right in Phoenix—on the drawing boards, so they specc’d a composite ICF for the Chandler station, while Dagosta got the nod to build the Phoenix facility with Nudura. Both began at the same time. “It ended up being such a cleaner, faster build,” Dagosta says. “They just fell in love with it.”

Ken Leake, deputy fire chief for the Phoenix Fire Department, verifies the story. “In 2003, the Phoenix Fire Department built its first fire station using ICFs, which was LEED certified in April of 2004,” he says. “Since the completion of Fire Station 50, these products are considered ‘best practice’ in the Phoenix area and now all fire station construction projects utilize ICF.”

Buckeye Valley Fire Station, located in the westernmost suburb of the Phoenix metro area, is a recent success. Completed in 2011, it used Reward ICFs for all exterior walls of the fire station proper (the attached engine garage is built with CMU), as well as several interior walls. The 18,000-sq.-ft. facility earned LEED Gold certification from the U.S. Green Building Council, and was completed $200,000 under budget and three weeks early. (For more information on this project and others mentioned in this story, see the links at the end of the article.)

Phoenix chose ICFs again for a five-story regional emergency dispatch center, this time for durability as well as efficiency. The reinforced concrete walls help the $8.8 million facility achieve a Level 4 blast and bullet resistance rating and meet NFPA (Homeland Security) guidelines. Completed in 2013, it was constructed with 26,000 sq. ft. of Fox Blocks ICF. Leake says the dispatch center is the eleventh ICF project commissioned by the department, and the largest municipal building in the metro area. Based on the success here, ICF fire stations are now seen in Las Vegas and other areas of the Southwest.

Other Considerations
Fetters says the success ICFs enjoy now is due to the enormous amount of marketing he and others did years ago. “We’d do 12 or 13 shows a year,” he says. “Home shows, gun shows, car shows, we hit them all.” And it wasn’t just a small presence. “Once we used an entire semi load of block—52 bundles—to build a booth at a survival show,” he said. “We were the only builder there, and we promoted the bulletproof, disaster-resistant aspect of it.”

That hustle led to jobs. Shortly after the fire department switched to ICFs, Harkins Theaters began looking at the material for theater construction. Based in Scottsdale, they’re the fifth largest multiplex chain in the country. ICFs have an STC rating in the mid 50s, virtually eliminating sound transfer between theaters. Fetters convinced them to try it for one job, and they were sold. Now, all new theaters in the five states they operate in are built with ICF. Several are currently under construction in Arizona, including a 16-screen multiplex in Flagstaff, a similar sized project adjacent to Fashion Square Mall in Scottsdale, and a 70,000-sq.-ft. multiplex in Goodyear, west of the metro area.

Sustainability is also a driving spec. (Phoenix is prominent enough within the green building community that it hosted Greenbuild 2009.) The fire stations mentioned earlier are all LEED-certified. It was also the deciding factor in why a 80,000-sq.-ft. office complex in Tucson chose ICF. An article in the Arizona Daily Star described the open house held while the development was under construction in 2008. “Outside the afternoon sun cooked the air to 90 degrees, but the building was cool and comfortable even without air conditioning,” it reads. The story also mentions the ICF walls will shave 40-50% off cooling costs, and quotes developer Robert Schwartz, “Originally, I was a little bit hesitant and nervous about doing this, but I’m coming to find that there’s a demand for it.”

St. Margaret Mary Church in Bullhead City was the first ICF project for the Dioces of Phoenix. The success of this complex project led to ICFs being specc’d for more than two dozen other large commercial jobs.

Religious Construction

Ten years ago, the Phoenix metro area was gaining nearly 200,000 people every year, and the Roman Catholic Diocese of Phoenix was one of many organizations scrambling to meet the needs of the growing population. John Minieri, director of real property and facilities, and his assistant Patrick Hintze took the lead in determining the best way to serve the growing number of parishioners.

In their due diligence, they discovered ICFs and met Brian Smith, then working for Insulated Concrete Walls (ICW), a commercial ICF subcontractor. Rod and Gary Fetters, who had built several of the big theaters for Harkins, also received the opportunity to make a presentation. “We walked in with four or five different blocks,” remembers Gary, “and explained how we, and ICF technology, could offer something better for the church.”

Minieri says, “In 2011 we decided to push for ICF use in a project being designed in Bullhead City. The weather conditions there cried out for an efficient building, but there was a lot of discussion over which product to use.”

The diocese chose Quad-Lock for the first project. John Hatfield, who was worship facilities manager for Quad-Lock at the time, characterizes the change from masonry to ICF as a “rather large battle.” The stakes were high for the construction team. St. Margaret Mary Church has 58-foot freestanding walls, with gables reaching to 76 feet. The design called for 6” core, with ICF pilasters every 16 feet. They also used Helix to minimize the amount of horizontal rebar. ICW did the install, and the final results were impressive. The change from masonry to ICF cut the cooling load in half, and construction costs were comparable. The diocese was impressed enough to spec the next several projects as ICF.

In short order, they commissioned St. Mary Magdalene Church in Gilbert; Immaculate Conception Catholic Church in Cottonwood, and two high schools; Seton Catholic High School in Chandler and Xavier College Preparatory High School in Phoenix. All were built with ICF.

Much of this construction is funded by the proverbial “widow’s mite,” and Minieri wasn’t shy about ensuring he was receiving the best value for his dollar. The first two projects were built with Quad-Lock, but the Gilbert facility used Greenblock, and the high schools used BuildBlock. Competition was stiff among general contractors and the ICF subs as well.

ICW fell victim to the recession, and the ICF work for the most recent projects, including both high schools and the Newman Center adjacent to Arizona State University have been built by ICF Specialist, the Fetter’s company for commercial installation.

“We have had in excess of 16 projects,” says Minieri, “some of which are multiple phases and multiple ICF products.”

Fetters says, “No question about it, the churches have been a big driving factor here. People drive by and call.” Among the calls are other churches and school boards.

“John and Pat have done so much,” he says. “We had a meeting with the Arizona School board, and they were willing to come along. They said, ‘The money you’re going to save is huge.’ ”

Of course, the Catholics aren’t the only ones building churches with ICF. Sun Valley Community Church in Gilbert was finished in 2007. It covers 84,000 sq. ft. in three separate areas, worship hall, mezzanine, and classrooms. ICFs were used for exterior walls as well as demising walls between the three components of the building to reduce sound transmission just as in theaters. More recently, Our Lady of Sorrows Church was completed in Phoenix (see story on p. 16 of this issue).

Similarly, ICF school construction outside of the diocese is also common, including a Green Safari School built with Amvic; and Ironwood Hall, a community college in the southeastern suburbs of Phoenix that achieved LEED-Silver certification.


The Newman Center adjacent to the ASU campus had unusual angles, tall walls, and multiple windows. These features are quite common in commercial ICF work.


For More Commercial ICF Projects in Arizona, see:

Sun Valley Community Church (Feb.’09)

Ironwood Hall (Feb.’10)

St. Mary Magdalene Church (June’11)

Immaculate Conception Catholic Church (Oct’11)

Buckeye Valley Fire Station (Mar’12)

Seton Hall Catholic High School (Nov.’12)

New Founder’s Hall at Xavier College (Nov.’13)

Newman Center (May’14)

Green Safari School (May’16)