Liberty University Taps Experienced Team for Indoor Practice Facility

Liberty University Taps Experienced Team for Indoor Practice Facility

Liberty University

Photo: Leah Seavers. Copyright Liberty University

While he was a student in the 1970s at Liberty Baptist College in Lynchburg, Va., Craig McCarty took a job with a roofing company to help him pay his way through school. One of his business courses required students to set up a model business, so McCarty set up a fictional roofing company.

When a recession forced his boss to close down the company where he worked, McCarty turned his classroom project into reality. He got his contractor’s license and formed his own roofing business at the age of 20. More than 40 years later, he is installing roofs on the same campus he once took classes for a college now known as Liberty University.

McCarty is the president of McCarty Roofing, headquartered in Lynchburg, Va. This year the company installed the standing seam metal roof on Liberty University’s new indoor football practice facility, the fourth building the company has worked on at the school. McCarty has always been fascinated by metal roofs, and he estimates that 70 percent of the company’s business comes from the metal segment of the market. “It’s our passion, and we’re really good at it,” he says.

Liberty University’s new indoor practice facility encloses an entire regulation football field.

Liberty University’s new indoor practice facility encloses an entire regulation football field. The structural metal roof system is made of panels that run the entire width of the building.

He’s found a great place to ply his trade in Liberty University, which has made roofs manufactured by Fabral Metal Wall and Roof Systems into something of a signature architectural style. Other Fabral roofs at the university include those on Williams Stadium, Hancock Welcome Center, Jerry Falwell Library, and the LaHaye Recreation and Fitness Center.

According to Jerry Wandel, Fabral’s Mid-Atlantic territory manager, based in Richmond, Va., Fabral and distributor NB Handy in Lynchburg have partnered to provide architectural metal enclosure systems for 13 buildings on the campus since 2010.

The new practice facility encloses an entire regulation football field, and the design for the structural metal system on the vaulted barrel roof called for panels—many as long as 240 feet—that would run the entire width of the building.

Fabral’s Stand’N Seam 24-gauge panels in Dark Bronze were specified for the project. According to Wandel, the product features a unique stainless-steel clip design and double lock-seamed side joints that allow panels to expand and contract throughout their entire length. The system had been installed successfully on indoor practice facilities at other colleges, including Georgia Tech, the University of Virginia, Virginia Tech and Virginia Military Institute.

“When you run a panel that long, clearly one of the biggest concerns is expansion and contraction,” Wandel says. “Our Stand’N Seam product just lends itself to a project that has 240-foot panels. This one was right in our wheelhouse.”

Riding the Curve

The first task for McCarty Roofing was drying in the metal deck. Crews installed two layers of 2 ½ inch polysio and covered the insulation with Blueskin, a self-adhering underlayment manufactured by Henry.

The metal panels were fabricated on the site. Fabral supplied the roll former and brought in Ray Berryhill to operate the equipment. “Ray has done all of these jobs for us,” notes Wandel. “We want to make sure the contractor is in position to have a quality installation. Ray has so much knowledge about these jobs. He was the perfect person to execute this one.”

The panels were fabricated on the site.

The panels were fabricated on the site. The roll former was lifted into place at the edge of the roof by crane, and panels were rolled directly onto the roof and stacked for installation.

A crane was used to lift the roll former into place at the edge of the roof. “We were able to set the front two feet of the roll former in the built-in steel gutter, and then drop the back end of the machine down to the proper angle so we could roll the panels right onto the roof,” McCarty explains. “About every 15 or 20 feet up the roof we would stack some insulation, so the panel would float across the roof. Once it hit the top and went down the other side, it could just ride the roof down.”

The original plan was to install the panels as they came off the roll former, but McCarty decided it would be more efficient to run all of the panels, stack them on the roof, and install them once all of the panels were fabricated. “We had a large crane on site that was costing us money, and we had the people from Fabral there,” he recalls. “I went to the construction manager and said, ‘It’s going to make a lot more sense if we get all of the panels for the project up on the roof as quickly as possible.’”

The 4,000-pound metal coils typically supplied enough material for 8-10 panels, so Berryhill would run 8-10 panels at a time as crews from McCarty Roofing stacked them. When the roll former was lowered to the ground to load another coil, workers would strap the panels into place, figure out how much area the panels would cover, and set up again another 20 feet or so down the roof to receive the next batch. “We had a series of 15 or 20 straps for each bundle of panels,” says McCarty. “We had to be careful, but with eight people, you could pick up the panel and gently set it down.”

After the roll forming crew was done, the panels were pulled off of the stacks and installed. “It was a pretty extreme radius, but the panels just laid down on the roof perfectly,” McCarty recalls. “The design worked out really well.”

Liberty University

Photo: Joel Coleman. Copyright Liberty University

The built-in gutter gave crews a good location to set the bottom edge of the panels. “At the eaves, the roof pitch was very steep—maybe 12:12—and it was almost flat at the top,” notes McCarty. “We had to be tied off 100 percent of the time. We used retractables, but the safety equipment still limited our movement. It was pretty difficult for the guys working the first 30 or 40 feet.”

The roof featured large skylights, which made the metal panel layout critical. The design also featured upper and lower sections that stepped down around large windows, which made for some tricky details. “At the gable ends, we had to make the cuts at an angle,” McCarty notes. “We cut the panels in place with drill shears and hand turned them with tongs to lock then onto a cleat.”

The schedule was tight, and weather was also a concern. “It was in the dead of winter,” McCarty recalls. “We started laying panels in January. Fortunately, we had a mild winter, but at times it was like a wind tunnel. You’re not going to pick up a 240-foot panel in 35 mile-an-hour winds, so there were days we just weren’t able to work.”

The project was wrapped up at the end of May, and McCarty credits the decision to stack the panels as one of the keys to meeting the deadline. “It was the right call,” he says. “The time we saved made up for the lost days due to the weather and helped us complete the job on time.”

TEAM

Architect: VMDO Architects, Charlottesville, Va., VMDO.com
Construction Manager: CMA Inc., Lynchburg, Va., CMAinc.us
Roofing Contractor: McCarty Roofing Inc., Lynchburg, Va., McCartyroofing.net
Distributor: NB Handy Co., Lynchburg, Va., NBhandy.com
Metal Roof System Manufacturer: Fabral Metal Wall and Roof Systems, Fabral.com

Published at Thu, 28 Sep 2017 20:10:27 +0000

How to safely inspect your roof after a storm

How to safely inspect your roof after a storm

This hurricane season has been historic in its intensity and damage. But it’s not just homes in the storm tracks that may need a roofer’s attention. Punishing winds and debris have been taking their toll on roofs all along the Eastern Seaboard and Gulf Coast. Home and property owners should be arranging for post-storm inspections now, so roofing contractors like you can provide any necessary repairs before the challenges of winter set in.

Here are a few tips to share with your customers as they assess any hurricane season-related damage.

Inside: Begin in the attic, if it’s accessible, during the daytime.

  • The first and surest sign of a problem would be sunlight showing through the plywood decking, which may indicate serious holes in need of repair.
  • If there are no obvious holes, use a flashlight to inspect the decking for dark stains or streaks, as well as sagging, all of which could be caused by moisture.

Outside: You may be able to see most, if not all, of your roof from ground level. Walk around your house, examining the roof for these signs of damage:

  • Missing shingles should be replaced as quickly as possible.
  • Cracked or curled shingles are sometimes caused by high winds or flying debris.
  • Dark patches where the granules have come off of the shingle. In addition to affecting the overall look of the roof, bare patches like these leave the shingles vulnerable to the sun, which can, over time, dry out the asphalt, and may lead to leaks.
  • Bent or detached flashing. Flashing helps keep water from chimneys, vents, and other roof penetrations and should be thoroughly sealed to prevent water intrusion.
  • Debris. A branch on the roof may not seem like a big deal, but over time, it can rub the granules loose from your shingles, or may even be covering a crack that it caused as it landed.

Up the ladder: If you are comfortable climbing a ladder and the weather conditions allow you to do so safely, you can get a better look at your roof up close. Look for:

  • Loose nails or nail heads raised above the shingle surface may be just one storm away from letting go entirely.
  • Gutter debris can contribute to ice dams later in the year. Your roofing contractor may provide gutter cleaning services if you are not comfortable doing the job yourself.
  • Flashing on the upslope (or back) of the chimney and penetrations can be seen more easily from the roof itself.

If you find damage: Call a local, reputable roofing contractor right away. After storms, you may receive solicitations from unfamiliar contractors looking for work.  To find reputable, factory-certified contractors in your area, visit the GAF contractor locator at: http://www.gaf.com/roofing/contractors.

The sooner you address any hurricane-season damage, the more secure your roof will be for the winter months.

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Published at Wed, 27 Sep 2017 18:49:19 +0000

NRCA Mourns Passing of its Former President Donald McNamara

NRCA Mourns Passing of its Former President Donald McNamara

Don McNamaraNRCA is saddened by the passing of Donald McNamara on Sept. 16 at the age of 81.

McNamara was the majority owner of F.J.A. Christiansen Roofing Co., Inc. (FJAC) from 1967 to 1995. After his retirement, he helped lead the formation of Tecta America Corp. and also served as its first CEO and on its board of directors.  McNamara served as NRCA president from 1986-87.

“Don had a strong dedication to the roofing industry. It was so strong, it led him out of retirement to help build one of the largest roofing companies in the country,” says Reid Ribble, CEO of the National Roofing Contractors Association. “He was a great leader who knew how to live life to the fullest.”

In addition to serving as NRCA’s president, McNamara also chaired several committees during his NRCA tenure, including the Asbestos Committee; Nominating Committee; NRCA/IWA Labor Relations Committee; Audit, Budget and Finance Committee; and the Awards Committee.

He also was the 1990 recipient of the J.A. Piper Award, NRCA’s highest honor.

NRCA offers its condolences to his three sons, Timothy, Rob (former NRCA president) and Theodore, and his wife, Valerie.

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Published at Wed, 27 Sep 2017 18:33:41 +0000

What’s Happening in Metal Roofing at METALCON

What’s Happening in Metal Roofing at METALCON

NETWON, Mass. METALCON, the largest international event in the metal construction industry, announced program highlights for its metal roofing industry attendees.

One of METALCON’s new featured presentations this year is the “Top 10 Things That Get Metal Roof Designers in Trouble” by Brian Gardiner of BMG Enterprises, LLC, and Charlie Smith of McElroy Metal. Together, they’ll address the most common mistakes made in designing and specifying a metal roof system and proper steps to avoid them. Drawing from their 50+ years of combined metal roofing experience, Gardiner and Smith will detail how to design for differences in metal roofing system performance, provisions for metal expansion and contraction, and the keys to successful metal roof flashing design. In addition, they will explain how to select the correct design options and the importance of product testing.

Also new this year, is “The Good, The Bad and The Ugly of Mechanically Seamed Roof Panels” by Jonathan Rider of D.I. Roof Seamers. This session will cover everything attendees need to know about metal roof installation: tips and techniques for installing roof panels, basic operations of a roof seamer, correct hand crimping practices and basic troubleshooting.  Rider will use real-world scenarios dealing with modulation problems, surface contaminates and other issues faced on the job site.  Finally, seam appearances will be addressed in detail to help attendees better understand what is happening inside the seam, and what it will look like after installation.  Both featured presentations take place on Oct. 18 and 19 at the Las Vegas Convention Center. 

Also for metal roofing fans, the Metal Construction Association’s (MCA) Games Task Force is celebrating its fourth annual metal roofing competition with a number of different challenges known as Aces of Las Vegas.  Five teams of construction professionals compete for thousands of dollars in cash awards and the winning title on Oct. 18-20 at METALCON.  Each challenge takes 15 to 30 minutes to complete.  Fastest time and accuracy are the two key winning factors.  Judging the competition are members of the Metal Building Contractors and Erectors Association. 

The Aces of Las Vegas competitions are as follows:

1:00 p.m. Game 1:  The MBCI & Pac-Clad “Retrofit Panel Installation Challenge.”  Contestants install the “base” R-panel roofing onto the Games steel-framed mock-ups that are 8-foot x 9-foot.

2:00 p.m., Game 2:  “Screw Gun Challenge,” sponsored by Triangle Fastener Corporation.  Contestants install a series of self-drilling fasteners into a structural zee-shaped purlin mounted on a steel framework platform. 

3:00 p.m., Game 3: “Hug a Roof Challenge,” sponsored by Roof Hugger, LLC.  Contestants install 40 lineal feet of factory-notched, zee-shaped sub-purlins on a mock-up existing ribbed metal roof paneled frame. 

4:00 p.m., Game 4: “Standing Seam Challenge,” sponsored by New Tech Machinery and Drexel Metals.  Contestant teams install six each, 16-inch wide metal roof panels over factory-notched sub-purlins.  

5:00 p.m., Game 5: “Let It Snow Challenge,” sponsored by S-5! Contestants must properly install a mechanically attached snow retention system onto 16-inch metal roof panels.  

Meanwhile, after its successful initial launch last year, top experts in the metal roofing industry will lead the MCA Metal Roof Installation Training― a two-day, eight-hour certification program based on MCA’s Metal Roof Installation Manual, which kicks off before the show on Tuesday, Oct. 17.

In addition to streamlining and updating the certification program for 2017, further plans for this year include more training on: substrates, safety, sealants, flashings, panel types and connections, tools, fasteners, maintenance and more.  Again, participants will have the opportunity to experience quality face-time with industry experts, visit the exhibit hall throughout the duration of the show and access the full conference program.  The objective is to couple the training program with the exhibit floor where participants can see live demonstrations of what they have just learned, and network with industry experts. 

Scott Kriner, MCA’s technical director and program presenter, explains how both participants and manufacturers benefit.  “Many metal roof manufacturers have their own in-house training programs for installers and contractors to become familiar with specific profiled panels, trim, clips and ancillaries,” said Kriner.  “This new Metal Roof Installation Training program gives manufacturers access to a pool of qualified individuals trained in key topics related to metal roof installation. Therefore, their installers and contractors will be prepared to hit the ground running with a basic knowledge gained through this certification program at METALCON. As a result, manufacturers will be able to create more efficient and tailored in-house training programs.”

“For those outside the metal roofing industry, this certification program offers a great opportunity to learn about the industry and experience practical training in topics most roof installers are required to know,” said Kriner.

For more information, visit www.metalcon.com

Published at Wed, 27 Sep 2017 13:00:00 +0000

Temporary Roof Membrane Offers Solution for Storm-Damaged Roofs

Temporary Roof Membrane Offers Solution for Storm-Damaged Roofs

FiberTite Roofing Systems introduces its new temporary roofing membrane, FiberTite Blue Roof. The FiberTite Blue Roof is a fabric-reinforced thermoplastic roof membrane designed for use on flat commercial and industrial roofs to offer a temporary solution for damaged roofs until permanent repairs can be made. The coating on the temporary roof membrane provides UV resistant performance for up to one year, as well as abrasion resistance. The fabric reinforcement provides both tear and puncture resistance. It is available in rolls that are 100 inches wide by 100 feet long. According to the manufacturer, it is ideal for temporary repair of damage caused by disastrous weather events, and it can also be used for tear-off areas or new construction until the final roof assembly can be installed.

The temporary membrane can be made watertight by conventional commercial hot-air weld seaming equipment. Alternate temporary seaming and sealing methods may include the use of FiberTite FTR-101 General Purpose Sealant, waterproofing caulk sealants, or adhesive tapes including duct tape. FiberTite accessories, such as molded pipe seals and corners, flashing membrane and FiberTite FTR-101 Sealant, can be used to temporarily seal roof penetrations.

Published at Wed, 27 Sep 2017 17:00:45 +0000

Beacon 3D+

Beacon 3D+

Beacon 3D+ uses HOVER’s patented technology to make measuring a home and estimating a project incredibly easy and accurate by transforming smartphone photos into a fully measured and customizable 3D model. By taking just a few pictures of the exterior of a home, Beacon 3D+ will automatically generate the measurements required for a contractor to provide a precise estimate for roofing, siding and windows. Additionally, Beacon 3D+ creates an interactive 3D model of the home along with design features that contractors can use to effectively engage homeowners and speed up the sales cycle.

Contractors that have used the Hover technology that is inside of Beacon 3D+ have seen these amazing benefits:

Published at Wed, 27 Sep 2017 12:00:00 +0000

Customizable Roofing Holiday Cards

Customizable Roofing Holiday Cards

Cap off a great year and set yourself up for peak profits in the New Year by connecting with clients and working new leads using Ziti Cards’ exclusive line of customizable roofing Christmas cards. Holiday cards are an economical and effective way to maintain customer relations so that a company enjoys lasting success. Featuring festive roofing-themed artwork, each design is printed on top quality cardstock. Easy to order online, Ziti’s roofing Holiday cards offer many free upgrades allowing you to add your logo and a personal message or year-end offer. Choose your favorite ink color and font, and select envelopes with your return address printed on them at no additional charge. If you like steep savings, ask about the early order program, or request your free samples today. Ziti Cards guarantees a hassle-free experience offering friendly, reliable service.

For more information, visit www.ziticards.com.

Published at Tue, 26 Sep 2017 13:00:00 +0000

Understanding and Installing Insulated Metal Panels

Understanding and Installing Insulated Metal Panels

IMP installation

IMP installation typically occurs once the steel frame is in place. The more common vertical installation allows for faster close-in for interior trade work. Photos: Metl-Span

Insulated metal panels, or IMPs, incorporate a composite design with foam insulation sandwiched between a metal face and liner. IMPs form an all-in-one-system, with a single component serving as the exterior rainscreen, air and moisture barrier, and thermal insulation. Panels can be installed vertically or horizontally, are ideal for all climates, and can be coated with a number of high-performance coating systems that offer minimal maintenance and dynamic aesthetic options.

The Benefits of IMPs

At the crux of the IMP system is thermal performance in the form of polyurethane insulation. Panel thicknesses generally range from 2 to 6 inches, with the widest panels often reserved for cold storage or food processing applications. IMPs provide roughly three times the insulation value of field-assembled glass fiber systems, and panel thickness and coating options can be tailored to meet most R-value requirements.

IMPs offer a sealed interior panel face to create a continuous weather barrier, and the materials used are not conducive to water retention. Metal—typically galvanized steel, stainless steel or aluminum—coupled with closed-cell insulation creates an envelope solution impervious to vapor diffusion. Closed-cell insulation has a much denser and more compact structure than most other insulation materials creating an advantage in air and vapor barrier designs.

Time, budget and design can all be looming expectations for any building project. A valuable characteristic of IMPs is their ability to keep you on time and on budget while providing design flexibility to meet even the toughest building codes. The unique single-source composition of insulated metal panels allows for a single team to accomplish quick and complete enclosure of the building so interior trades can begin. This expedites the timeline and streamlines the budget by eliminating the need for additional teams to complete the exterior envelope and insulation.

Minimizing Moisture

The seams function both as barrier and pressure-equalized joint, providing long-term protection that requires minimal maintenance. Multiple component systems often rely on the accurate and consistent placement of sealant and may also require periodic maintenance. In addition, with IMPS a vented horizontal joint is designed for pressure equalization, and, even in the presence of an imperfect air barrier, the pressure-equalized joinery maintains the system’s performance integrity. With multi component systems, imperfections can lead to moisture infiltration.

The real damage occurs when water enters through a wall and into a building becoming entrapped—which leads to corrosion, mold, rot, or delaminating. Unlike IMPs, some multi-component wall systems include a variety of different assembly materials that may hold water, like glass fiber or paper-faced gypsum. When those materials get wet, they can retain water, which can result in mold and degradation.

Installation

Typically, IMP installation is handled by crews of 2-4 people. Very little equipment is needed other than standard construction tools including hand drills, band and circular saws, sealant guns, and other materials. The panels can be installed via the ground or from a lift, and materials can be staged on interior floors or on the ground level. Panel installation typically occurs once the steel frame is in place and prior to interior fit out. The more common vertical installation allows for faster close-in for interior trade work.

Metl-Span CFR insulated metal standing seam roof panels

Metl-Span CFR insulated metal standing seam roof panels combine durable interior and exterior faces with exceptional thermal performance. Photos: Metl-Span

IMPs are often installed using concealed clips and fasteners that are attached to the structural supports (16 gauge minimum wall thickness tubes or stud framing). The panels are typically installed bottom to top and left to right, directly over the steel framing. No exterior gypsum or weather barriers are required, as these panels act as the building’s weather barriers.

The product’s high strength-to-weight ratio allows for longer installation spans and reduced structural costs. The metal skins act as the flange of a beam, resisting bending stress, while the foam core acts as the web of the beam, resisting shear stress. This important aspect also contributes to a long product life cycle.

Design Flexibility

IMPs offer a unique combination of aesthetic design options, including mitered panel edges, and a vast array of profiles, textures and reveal configurations. Flat wall profiles are ideally suited for designers seeking a monolithic architectural façade without sacrificing performance elements. The beautiful, flush panels have become a mainstay in projects in a number of high-end architectural markets.

The 35,000-square-foot AgroChem manufacturing facility in Saratoga Springs, N.Y.

The 35,000-square-foot AgroChem manufacturing facility in Saratoga Springs, N.Y., showcases vertically installed Metl-Span CF36 insulated metal panels. Photos: Metl-Span

Striated or ribbed wall profiles are more common in commercial and industrial applications. The products offer bold vertical lines for a distinctive blend of modern and utilitarian design, while continuing flawless symmetry from facade to facade, or room to room on exposed interior faces. Ribbed panels also work in tandem with natural lighting to create impactful designs. Different textures, such as embossed or simulated stucco finish, add dimensional nuance and contrast to projects of all shapes and sizes.

IMPs are offered in an unlimited palette of standard and custom colors to meet any aesthetic requirement, as well as energy-efficient solar reflectivity standards. Panels are typically painted with a polyvinylidene fluoride (PVDF) coating with optional pearlescent and metallic effects, and can even simulate expensive wood grains and natural metals. PVDF finishes offer exceptional performance characteristics that can be tailored to meet most any project needs, including saltwater environments and extreme weather conditions.

Roof Configurations

For all the above reasons, IMPs have also become a popular building product for roofing applications. Insulated metal standing seam roof panels provide the desired aesthetic of traditional single-skin metal standing seem roofs with added thermal performance. Standing seam roof panels feature a raised lip at the panel joinery, which not only enhances overall weather resistance but provides the desired clean, sleek sightlines.

IMP installation

IMP installation typically occurs once the steel frame is in place. The more common vertical installation allows for faster close-in for interior trade work Photos: Metl-Span

The systems typically feature field-seamed, concealed fasteners that are not exposed to the elements. Just like their wall panel counterparts, insulated metal standing seam roof panels are available in a variety of thicknesses and exterior finishes.

Another popular insulated metal roof application showcases overlapping profile panels. The product’s overlapping, through-fastened joinery allows for quick installation in roof applications, resulting in reduced labor costs and faster close-in.

Finally, insulated metal roof deck panel systems combine the standard steel deck, insulation, and substrate necessary for single-ply membranes or non-structural standing seam roof coverings. The multi-faceted advantages of this system include longer spans between supports, superior deflection resistance, and a working platform during installation.

Insulated metal wall and roof panels offer an exceptional level of value when compared to traditional multi-component wall systems. The product’s unique single-component construction combines outstanding performance with simple and quick installation, a diverse array of aesthetic options, and the quality assurance of a single provider.

Published at Tue, 26 Sep 2017 18:00:23 +0000

ABC Supply Opens New Branch in California

ABC Supply Opens New Branch in California

ABC Supply Co. Inc. announced that the company has opened a branch in Antioch, Calif. Tom Hennigan will lead the team of associates at this new ABC Supply branch. According to the company, Hennigan joined ABC Supply’s Oakland, Calif., location in 2016 as an outside sales associate. Prior to joining ABC Supply, Hennigan gained extensive experience with exterior building products as a contractor and salesperson, and he will use the industry knowledge he gained to help local contractors find solutions for their business challenges and achieve their goals.

The branch is ABC Supply’s first location in Antioch and one of more than 30 locations in California. “We’re excited to be part of the Antioch community and to build trusting, professional relationships with the area’s contractors,” said Matt Cooper, vice president of ABC Supply’s West Region. “Our goal is to make it as easy as possible for contractors to have access to the products and expertise they need to tackle their projects.”

The Antioch branch is located at 2701 Verne Roberts. Branch hours are 7:00 a.m. to 4:30 p.m. PDT, Monday through Friday, and 7:00 a.m. to 11:00 a.m. PDT on Saturday. The phone number is (925) 779-1437. 

Published at Tue, 26 Sep 2017 20:35:51 +0000

Low-Rise Adhesive Now Available in Larger Containers

Low-Rise Adhesive Now Available in Larger Containers

Mule-Hide Products Co. now offers Helix Low-Rise Adhesive in 15-gallon pony kegs and 50-gallon drums for use in completing larger jobs. According to the manufacturer, Helix Low-Rise Adhesive provides quick, clean adhesion of approved roof insulations, thermal barriers, cover boards and fleece-backed single-ply membranes to a wide variety of acceptable roofing substrates. The two-component, construction-grade polyurethane foam is applied in a single step, saving crews time and hassle. 

Both parts of the adhesive (Part A and Part B) are ready to use from the container – no mixing required – and are applied simultaneously in a 1:1 ratio through a static mix tip. The adhesive is applied in continuous ribbons or beads spaced 4, 6 or 12 inches apart, depending on the project and code requirements. There is no overspray. The adhesive cures fully in just minutes.
 
A pony keg covers approximately 2,350-7,000 square feet of roof and a drum covers approximately 8,350-25,000 square feet of roof, depending on bead spacing and substrate properties. Containers of Part A and Part B are priced separately but must be purchased as a set.
 
According to the company, the adhesive is odorless and solvent-free and contains no volatile organic compounds (VOCs), chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs), making it crew-, building occupant- and environment-friendly.
 
The adhesive eliminates the need for mechanical fasteners, maintaining a puncture-free vapor retarder, preventing thermal bridging and protecting the structural integrity of the roof deck. The adhesive provides superior wind uplift resistance, allowing it to be used on taller buildings and buildings in higher wind zones. In addition, it provides exceptional hail resistance when used as an adhesive for fleece-backed membranes. 
 
In addition to the pony kegs and drums, Helix Low-Rise Adhesive remains available in cartridge twin-pack tubes (covering approximately 125-400 square feet of roof) and two-tank sets (covering approximately 1,000-3,000 square feet of roof). 

Published at Tue, 26 Sep 2017 23:00:19 +0000