Roof Re-Cover Meets Challenges of Historic Integrity

Austin Hall is a historic landmark on the campus of Sam Houston State University. It was first occupied in October 1851. Photos: McElroy Metal

Some roofers are simply cut out to do their thing in the spotlight. Empire Roofing of Austin, Texas, executed the removal of an existing leaking stainless-steel metal roof and the installation of McElroy Metal’s 238T symmetrical copper standing seam roofing system on a historic centerpiece building on the campus of Sam Houston State University.

Historic Austin Hall in Huntsville, Texas, was re-roofed less than 10 years ago. It’s the oldest building west of the Mississippi River to have been used continuously by an educational institution. Austin Hall was first occupied in October 1851 and completed the following year.

Unfortunately, it soon became evident that there were defects pertaining to the 2009-10 roof installation and it needed to be replaced. The stainless-steel interlocking panels were not seamed or soldered as specified and in accordance with historically accurate methods, resulting in widespread water infiltration beneath the metal roof assembly. Armko Industries of Austin was contracted to determine the best plan of action for resolving these issues and restoring the Austin Hall roof, internal gutters and cupola back to a watertight condition. During the evaluation, portions of the existing roof had to be removed to verify conditions. Sam Houston State and Armko requested Empire Roofing assist the evaluation.

At the base of the cupola, the specifications called for the installation of through-wall flashing using 20-ounce copper. Photos: McElroy Metal

“Based on my initial observations, I was hired to come in and actually remove and replace some of the roof near the cupola and internal gutters to assess and verify the exact nature of the perceived defects,” says Aaron Todd, who leads the metal roofing and sheet metal division at Empire Austin. “I hated to be the bearer of bad news, but it was a lot worse than they anticipated. The flat-seam panels were installed using a Pittsburgh seam, which really isn’t designed to be a watertight seam in a low-slope (2:12) roofing application. The underlayment that was installed did a better job of keeping out water than the flat-seamed panels.”

Working together, Empire and Armko put together a plan that required the removal of the stainless-steel flat-seamed panels and the internal gutter liner. The Texas Historical Commission was involved in the renovation to ensure the new roof would be as historically accurate as possible. Plans and specifications issued by Armko Industries were to remove the existing stainless steel and to re-roof with the 20-ounce copper 238T standing seam on all roof sections, interior gutters and related sheet metal components. Specifications and details issued siding removed at the cupola walls and a new liquid-applied waterproofing membrane was applied over the new sheathing, with new siding installed to match the original siding. At the base of the cupola, the specifications and details called for the installation of through-wall flashing using 20-ounce copper. Titanium PSU-30 high-temp self-adhering underlayment covered the roofing substrate and was used as a lining in the internal gutters, under the 20-ounce copper.

Empire Roofing removed the building’s existing roof and installed McElroy Metal’s 238T symmetrical copper standing seam roofing system the historic structure. Photos: McElroy Metal

“We set up scaffolding and worked on the octagonal cupola first,” Todd says. “The design incorporates a convex curvature with all roof sections meeting at the apex. Together with my superintendent, Diego Trevizo, and our lead foreman, Uri Contreras, we measured everything we needed for the cupola roof and gave the cut list to our shop fabricators, who produced the panels and trim for the cupola roofing, the design of which was proposed by Empire and approved by the Texas Historical Commission and Armko. We also had a 10-foot mechanical brake onsite to fabricate and modify any panels as needed during the installation process. My team and I love working with copper, because aside from the obvious qualities inherent in its chemical makeup, it allows for a more thorough arsenal of seaming and joining techniques due to its unique malleability relative to most other types of commonly used metal components.”

Todd says standing seams were incorporated at each hip of the cupola to avoid the need to solder vertical joints. At the apex of the cupola, standing seams were folded down and lapped under the finial skirt. The crew sealed/riveted/soldered the finial base to the copper panels to create a watertight and wind-resistant detail at this very exposed and relatively flat area.

Standing seams were incorporated at each hip of the cupola. At the apex of the cupola, the seams were folded down and lapped under the finial skirt. Photos: McElroy Metal

Empire Roofing owns roll formers with dies to produce McElroy’s 238T and 138T symmetrical standing seam panels. “Empire’s capabilities with regard to commercial, industrial, and historical roofing projects are far reaching, and we love a good challenge,” Todd says. “If you’ve got a difficult problem, it’s our job to solve it, and we love working with innovative manufacturers like McElroy in doing so.”

Symmetrical standing seam systems do not have male and female legs, but are comprised of panels with matching left and right legs. The panels are joined with a mechanically seamed cap. The panels are non-directional, meaning they can be installed left to right, right to left, or even from the center out. The seam design on a symmetrical panel is more watertight than a double lock because there is no interruption of sealant in the seam at the clip locations. Most importantly, a symmetrical panel can be easily replaced if there is ever damage or a reason to pull a panel out of the roof at a later date.

“Through a judicious use of hydrostatic details utilizing butyl tape in lieu of solder at key areas, we were able to achieve a long-term watertight and wind-resistant roof assembly that only minimally relies on soldered joints and that can accommodate thermal movement much better,” Todd says.

Photos: McElroy Metal

Austin Hall is located on a hill among old-growth trees, so there isn’t much room to park a roll former to produce panels up to 25 feet long. It’s a relatively small project, about 6,000 square feet. “We set up our staging area in the road, about a quarter-mile from Austin Hall,” Todd says. “To minimize disruptions to daily university activities, we decided to run panels in the evening and have 3-4 guys walk the longer panels up the hill, one at a time. We rented a golf cart to transport guys down the hill to the roll former and bring smaller items up to the jobsite. We’ve got a great crew and it was ‘all hands on deck’ for this one. In one night, we produced all the panels and telescoped them to the roof on our spreader bar, which we attached to the forks of our onsite SkyTrack. We didn’t damage a single panel … that’s tough to do with copper.”

Todd was sure the roofing details would be watertight and wanted to make sure the internal gutters didn’t cause any problems. The Empire crew used sandpaper to etch the flat 20-ounce copper before it was fabricated into gutters. Once fabricated and roof-loaded, the gutter pieces were joined in 40- to 50-foot sections in the interior gutter, then lifted out and placed on sawhorses. All joints and seams were fully soldered on the sawhorses and then placed in their respective areas inside the internal gutter troughs, where the few remaining seams were joined and soldered in place. The gutters then were coated with Kemperol 2K PUR, a solvent-free, fleece-reinforced and liquid-applied waterproofing system based in polyurethane resin. Empire used a roller to apply the coating in open areas and brushed on the coating in corners.

TEAM

Building Envelope Consultant: Armko Industries, Austin, Texas, www.armko.com

Roofing Contractor: Empire Roofing, Austin, Texas, www.empireroofing.com

MATERIALS

Metal Roof System: 238T symmetrical copper standing seam roofing system, McElroy Metal, www.mcelroymetal.com

Underlayment: Titanium PSU-30 high-temp self-adhering underlayment, InterWrap, www.interwrap.com

Liquid-Applied Waterproofing System: Kemperol 2K PUR, Kemper System, www.kemper-system.com

Four Views From a 44th Floor Manhattan Green Roof

The green roof is a living ecosystem, and multiple species of sedum give it the best chance of success. The vegetative mat from ZinCo is pre-cultivated with about 12 to 16 hardy plant species.

SL Green Realty Corp., the largest commercial landlord in New York City, is working with tenants across its NYC properties to achieve a 30-50 percent reduction in greenhouse gas emissions over 10 years. Green roofs are playing a role in the effort, including one 44 stories up at 1185 Avenue of the Americas.

The 1.1 million-square-foot commercial office building is owned and managed by SL Green, a leader in urban sustainability. Among the many environmental advantages of green roofs, they reduce the urban heat island effect, ease storm water runoff, filter pollutants in rainwater and remove carbon dioxide, a greenhouse gas, from the air. In addition, by lowering building cooling demand, they can cut greenhouse gas emissions associated with producing electricity.

The roof replacement project was completed in the fall of 2017, and key participants shared their perspectives on the project, including representatives of four companies:

  1. SL Green, the property owner and management company
  2. CANY Architecture and Engineering DPC, the construction management firm
  3. Nations Roof LLC, the installer
  4. ZinCo USA, the green roof system consultant and manufacturer

1. The Realty Management Company

Daniel Huster, Senior Project Manager, SL Green Realty Corp.

How did this project get started?

Before the new Kemperol waterproofing membrane could be installed, the existing bituminous roof needed to be removed down to the concrete deck. Photo: Nations Roof LLC.

SL Green has an on-site team that manages 1185 Avenue of the Americas. I handle all the construction within the building and several others in our portfolio. The old (bituminous) roof was past its warranty. It had absorbed water, and we were showing signs of leaks in our mechanical room and the spaces below. We engaged CANY to put together a package to design and replace the roof system. They specified a reinforced waterproofing membrane from Kemper System America Inc. for the main roof, and we also asked CANY to bid with a green roof on top.

Green roofs are uncommon at such heights. What convinced SL Green?

When we originally put the RFP out for roofing renovation, we asked for the green roof as an alternative. After the group considered all the advantages and then saw the pricing, we made a collective decision that it was worthwhile to pursue.

SL Green already has two buildings in New York with green roofs — 100 Park Avenue and a vegetable garden at 1515 Broadway near Times Square. But those are setback roofs at much lower elevations. The roof at 1185 is essentially rectangular, so this was an opportunity. The floor plates spread the weight, and the green roof and pavers could cover roughly 4,500 to 5,000 square feet of the 14,200 square foot total. It took a while to work out the details on the elevation, but CANY and the green roof consultant from ZinCo figured out a design that could work.

2. The Construction Management Firm

Andrew Cucciniello, Project Manager, CANY

What was the condition of the existing roof?

The existing roof was a modified bituminous system — a torch-applied sheet on the concrete deck followed by layers of rigid insulation, topped with cover board and two more plies of the mod bit. Judging by the wear, it had been down about 20 years. We completed an investigation of the assembly, and found that it had failed in a number of locations and water had infiltrated the layers. This was one of the driving forces behind our recommendation for a full replacement aside from any repair.

What is involved with the investigation?

Typical with any investigation for us, we coordinate with an environmental consultant and an independent agent, who cuts holes into the main roof frame down to the structural deck so we can understand all the existing components. This also gives us an opportunity to do material sampling and test for asbestos-containing materials (ACMs). (There were none.)

Testing lets the demolition contractor know the extent of material removal. Also, the environmental consultant is required to submit a laboratory report and must notify the NY Department of Buildings before we can file for permits. The city wants to know there are no ACMs present, and if there are, the Department of Environmental Protection will receive notification about the abatement procedures.

What do you consider in specifying the green roof waterproofing assembly?

When we get a project like this, there are several different types of materials we can consider. We try to analyze the use of the roof and what kind of traffic it will experience in terms of mechanical equipment, people performing maintenance and repairs, etc. Also, for a protective roof assembly, there can be NY Energy Conservation Code requirements for insulation.

In this case, if we were to go with a built-up roof (BUR) it would require drainage at the surface, which would mean tapered insulation (likely a polyisocyanurate). Tapered insulation would drive our base flashing height halfway up the parapet, which we could not accommodate due to a scaffold track around the perimeter.

Nations Roof crews are acquainted with the challenges and procedures of working at height. In this photo, crew members are appropriately harnessed as they remove an old metal railing. Photo: Nations Roof LLC.

So we selected the liquid-applied Kemperol 2K-PUR reinforced membrane system, which is self-flashing and installs directly to the deck. Since it is a fully-adhered system that can withstand ponding water, we did not have to design for slope. A (non-tapered) rigid-styrene insulation board sits on top. Because the Kemperolmembrane is root resistant, a separate root barrier was not required. There were also ongoing discussions with Kemper System and ZinCo throughout our design process to assist with the final overburden components.

Are inspections conducted during the construction phase?

Our company performs QC inspections throughout the course of construction. From existing roof material removal and any preparation of substrates, as well as the new roof installation, flashing details, and the overburden placement. We have been involved with Kemper System for about two decades. With these roof assemblies which offer a 20-year warranty, we conduct periodic inspections with Kemper System to make sure the installation meets their warranty compliance requirements. We were the applicant of record with the NY Department of Buildings, though, and are on board until the project gets closed out.

3. The Installer

Michael Johannes, President, Nations Roof-East

Why was Nations Roof selected for this green roof rather than an architectural landscape company?

When a realty management firm first looks at us as a roofing and waterproofing company, they see our financial stability and our commitment to working safely. Nations Roof consistently ranks in the top five roofing contractors in the U.S. We are committed to delivering comprehensive roofing solutions. During any repair or construction project, we understand the need to protect employees, guests and valuable assets, and at the same time, to maintain business operations and service levels throughout the project. This project was completed working off-hours and through occupied spaces that needed to be ready for the next workday without interruption.  

Also, not a lot of landscaping companies are going to carry the required levels of insurance coverage without numerous exclusions for such things as building height. We work constantly on projects from eight to 50 stories in the air installing roofing systems both on new construction and renovations such as 1185 Avenue of the Americas.

What about the quality of the waterproofing installation?

1185 Avenue of the Americas in New York City earned a LEED Silver rating from the U.S. Green Building Council and is one of the most efficient commercial office buildings in the nation. The property features expansive views and a green roof on the 44th floor.

Landscape contractors are not generally authorized to install roofing and waterproofing systems. Our foreman, project managers and installers are employees and most have been with our company for years. Our crews are trained and experienced in installing leak-free systems. That includes certified training by Kemper System in the liquid-applied reinforced membrane system used on this project. Plus, ZinCo provided guidance on installing the garden components and the transitions to the interlocking paver walkways. We can supply a “finished turnkey green-roof” with all the components, and provide the owner with a warranted watertight installation.

Has Nations Roof installed other green roofs in New York City?

Actually, we’ve done many garden roof installations. For example, we successfully completed 100 Park Avenue with SL Green, which was a LEED Silver project, and Via Verde, an affordable housing complex in the Bronx.

New York and Chicago are at the front of the green roof trend. Via Verde was former N.Y. Mayor Michael Blomberg’s first initiative into green gardens back in 2010, and they caught on. Most new roof projects we do in the city now have some form of hardscape and softscape. It’s valuable space that in the past has gone unused for the owner and the tenants. If you live or work in one of these buildings, it’s nice to have a place you can go that is secure. When we go to Via Verde now, we see mothers with baby strollers sitting and reading books in what would have been just a roof a few years ago.

What do you see for the future of green roofs?

We believe the market will continue to be strong for livable roof space that improves the environment, and we will continue to be in the middle of that with big developers. It is also the commitment and leadership of property owners like SL Green to invest in these initiatives that will continue to drive success.

4. Green Roof System Consultant and Manufacturer

Nick Smith, National Account Manager, ZinCo USA

What are the primary issues with installing a green roof at this height?

Any green roof installed at 500 feet can invite potential problems with horticulture, erosion and exposure. Let’s focus on those three: To analyze exposure, we recommend a wind study and sun/shade study, and CANY performed these tests.

Wind uplift is a major issue with the physical properties of the green roof. We are concerned with getting the proper ballast. In this situation, a standard engineered-material assembly would not be heavy enough to protect against a worst-case scenario. The solution was to add significant weight to the assembly within the cups and the drainage elements. The engineered growing media is also a bit heavier than normal.

Wind scour, a horticultural issue, is the plant’s ability to stay vital with continuous wind. We know after looking at hundreds of studies that trouble spots most often occur around the perimeter and at corners, where you get microcurrents of fast-moving or swirling air. The conventional wisdom is that on a building over 500 feet tall that is going to withstand serious wind 24 hours a day, plants simply won’t grow at the perimeter and corners.

To combat erosion, we separated the vegetated area from the walkway deck in many areas with an aluminum angled-edge. The aluminum barrier acts as a separation for the way the wind moves. So we make sure the installer understands that at the edge angle, the depth of the growing media must be exactly compacted in the cup wells to 3 inches plus. A shallower depth may not be significant at the center, but at the edge you must have that specificity in quality control to safeguard against erosion.

Finally, once the plants are down, we place a “jute net” over the entire assembly. Our erosion blanket is a biodegradable coco-fiber. It is really important on the perimeter that the jute net is wrapped around the vegetation and under the soil profile at full depth to make sure the plants have the best chance. 

What were some other ways you adapted the green roof for this project?

One unusual thing is we infilled the drainage element with an aggregate. That’s not totally uncommon on a green roof assembly, but it is on sedum. We wouldn’t do that at a lesser height, but it served as ballasting. The mineral-based aggregates we use also wick the water saved in the cups up into the growing layer, which in this case had a slightly higher dry weight (28.9 pounds per square foot) than a traditional assembly, again primarily for ballasting.

Dry weight always compromises nutritional content in the media. That means you can’t think strictly about weight, or you lose plant vitality. This was a balancing act we performed with CANY — to make sure proper weight was maintained for ballasting without undermining the needs for plant life, while also keeping the fully saturated weight within the load-bearing requirements of the structure.

What about the installation?

Green roof design, engineering and global experience are important, but the success of a green roof also depends on the installation. We worked with Nations Roof on proper installation technique, both generally and specifically for this challenging installation, and they did a fantastic job.

TEAM

Building Management: SL Green Realty Corp., New York, www.slgreen.com

Construction Management: CANY Architecture and Engineering DPC, New York, www.cany.com

Installer: Nations Roof-East, Yonkers, N. Y., www.nationsroof.com
Green Roof Consultant: ZinCo USA, Stoughton, Massachusetts, www.zinco-usa.com

MATERIALS

Roof Waterproofing System: Kemperol 2K-PUR cold liquid-applied reinforced membrane system, Kemper System, West Seneca, N.Y., www.kemper-system.com

Green Roof: Custom Sedum System by ZinCo USA, Stoughton, Massachusetts, www.zinco-usa.com

The Top 40 Products of 2018

The following product roundup features the Top 40 products of the year, as chosen by the readers of Roofing magazine. The products were selected based on the number of reader requests for sales leads through the Reader Action Card in the print issue and the number of clicks on the website, www.RoofingMagazine.com, including those generated through our monthly e-newsletter. The product generating the most leads from each print issue is also featured as our “Roofers’ Choice” product, and the 2018 winners are also included here. If you have a new product you’d like us to consider for a future edition of our Materials & Gadgets section, please email Editor-in-Chief Chris King at chris@roofingmagazine.com.

Roof Leveling Compound Helps Eliminate Ponding Water

GreenSlope is a roof leveling compound that helps eliminate water ponding areas on flat rooftops. The cured material is similar to that of a professional running track or playground surface and can withstand tough climates as well as heavy foot traffic. According to the manufacturer, the product is designed to fill in low areas and bring the roof back to its original slope, directing water toward drainage areas. It is designed for use on EPDM, TPO, PVC, modified bitumen and metal roofs. Made from EPDM, GreenSlope is lightweight, durable, and able to withstand freeze-thaw cycles. Other uses include protecting curbs, filling low areas near drains, establishing walk pads and filling pitch pans. Greenslope.co

New Product Line Secures Rooftop Pipes and Struts

Green Link introduces a family of custom-engineered, molded straps and caps for securing pipes and struts for its KnuckleHead rooftop support product line. Straps have been designed for both Heavy Pipe and Strut Support KnuckleHeads, while a cap design was developed for Lite Pipe Supports. All are molded from tough, weatherproof urethane and feature a striking “safety yellow” color. The Heavy Pipe KnuckleHead strap secures a 3-inch outside diameter pipe, while the Strut Support strap fits steel or aluminum Unistrut-type channel. The Lite Pipe Support cap is designed to secure a single 1-inch nominal pipe or two ½-inch nominal pipes. The Strut Support straps are available in nominal pipe sizes ranging from ¼ inch to 6 inches. www.Greenlinkengineering.com

Stainless Steel Bi-Metal Drill Screws Are Corrosion Resistant

Triangle Fastener Corporation introduces a full line of 304 stainless steel bi-metal self-drilling screws. Bi-metal screws have heads and threads made of 304 stainless steel, providing corrosion resistance and ductility. A hardened carbon steel drill point welded to a stainless steel body allows the screw to drill and tap steel up to 1/2 inch thick. The screws are used to attach aluminum, stainless steel, insulated metal panels (IMPs) and when ductility is needed in the connection. They are available in #12 and 1/4-inch diameters in lengths up to 12 inches. Head styles include: hex washer head, pancake head and button head. www.Trianglefastener.com

Insulation Board Contains No Halogenated Compounds

GAF introduces a new non-halogen polyisocyanurate insulation: EnergyGuard NH Polyiso Insulation Board. According to the manufacturer, the development of EnergyGuard NH Polyiso Insulation Board demonstrates the GAF commitment to providing architects, contractors, and building owners with affordable products that help them meet their sustainable and environmental design goals, by offering products that do not contain halogenated compounds. As with their current EnergyGuard Polyiso Insulation, this product line offers high insulating values to help save on energy costs and is available in a variety of thicknesses. Easy cutting in the field provides the installer with simple fabricating on the roof deck. www.GAF.com

Pre-Weathered Fastener Matches Corten Panels

Lakeside Construction Fasteners offers the new high-strength COR-10 WOOD-Xfastener, which is engineered to secure Corten metal panels into hardwood decking substrates. It is pre-weathered for an exact Corten metal panel color match, eliminating the need to wait for fasteners to be painted or weathered to match. The fastener is available in sizes from 1 inch to 3 inches, and it features an EPDM washer to ensure a sealed protective barrier. According to the manufacturer, its high-low threads and sharp T-17 cut point allows the fastener to quickly penetrate the Corten metal panel for low-cost installation. www.Lakeside-Fasteners.com

Insulation Board Designed for High Load-Bearing Applications

Kingspan Insulation has expanded its commercial product offering by introducing GreenGuard Type VII XPS Insulation Board. The product is designed for high load-bearing engineered applications requiring insulation with a minimum compressive strength of 60 psi. Type VII XPS is primarily used in commercial roofing applications, such as protected membrane and pedestal paver systems. According to the manufacturer, the insulation board offers an R-value of 5.0 per inch of thickness and meets ASTM C578 Type VII requirements. The product retains its insulating properties over time, has high water resistance and is HCFC-free. Kingspaninsulation.us

Portable RhinoBond Hand Welder Designed for Use in Tight Spaces

OMG Roofing Products introduces the RhinoBond Hand Welder. Based on patented Sinch Technology, the portable RhinoBond Hand Welder is designed to help roofers weld RhinoBond Plates in tight spaces, such as under raised rooftop equipment, and on vertical surfaces. The ergonomically designed tool features a vibrating handle and an indicator light that lets roofers know when the tool is activated and when the weld cycle is complete. The base is recessed and features centering indicator lines to help usersproperly align the tool over installed RhinoBond Plates for optimum bonding and improved productivity. www.OMGRoofing.com

High-Visibility Primer Improves Adhesion for Acrylic Coatings

KM Coatings offers KM SP 1000, a VOC-compliant, solvent-based primer designed to improve the adhesion of acrylic coatings to most aged TPO and PVC membranes. According to the manufacturer, using this primer with a KM-approved acrylic coating provides excellent coverage and long-term protection. Its orange color enables strong identification for the applicator to achieve complete monolithic surface application. www.KMcoatings.us

Two-Component SPF Adhesive Provides More Coverage

Soprema introduces a low-pressure, two-component spray polyurethane foam (SPF) adhesive to its DUOTACK family of roofing adhesive products. DUOTACK SPF was designed to provide quick, efficient adhesion of PVC membranes, insulation and cover boards to approved substrates. According to the manufacturer, the product was developed by Soprema chemists with vast knowledge and experience in the roofing and polyurethane foam industry to provide 50 percent more coverage and a faster flow rate than competing products. It also has usability in multiple applications without the need for extensive inventory and expensive equipment, like pace carts. www.Soprema.us

Adhesive-Free Attachment System Eliminates Temperature Restrictions

Carlisle SynTec Systems introduces its RapidLock (RL) Roofing System. This adhesive-free system uses VELCRO Brand Securable Solutions to fully attach 115-mil FleeceBACK RL EPDM or FleeceBACK RL TPO to InsulBase RL or SecurShield HD RL polyiso insulation. According to the manufacturer, the RapidLock system does away with temperature restrictions, has no VOCs or odors, offers wind uplift ratings comparable to traditional fully adhered single-ply systems and has a Factory Mutual 1-90 approval rating. The adhesive-free system also saves time and labor. www.CarlisleSynTec.com

High-Performance Adhesive/Sealant Anchors Rooftop Supports

Green Link offers a new adhesive/sealant designed for use with the company’s KnuckleHead Rooftop Support System. The product bonds and seals the KnuckleHead Universal Base and is effective on a wide range of roof surfaces. The new adhesive/sealant has been specially formulated to adhere to PVC, EPDM, TPO, and modified bitumen, as well as the KnuckleHead base itself, which is composed of glass-reinforced nylon. According to the company, it will not discolor from UV exposure, can be applied at temperatures as low as 32 degrees, and is capable of joint movement in excess of 35 percent. www.Greenlinkengineering.com

Cap Stapler OffersEasier Loading and Extended Tool Life

National Nail announces the upgraded 18-gauge Stinger CS150B cap stapler with an enhanced design that improves performance with easier loading, longer tool life, and tool-free adjustable exhaust. Shooting 200 caps and 200 staples before reloading, the versatile cap stapler now also provides a wider range of operating pressure (up to 120 psi) for installing roofing underlayments, house wrap, and foamboard. The Stinger CS150B shoots 5/8-inch, 7/8-inch, 1-1/4-inch, and 1-1/2-inch length 18-gauge staples with full 1-inch plastic caps. It also includes an installed belt hook and durable carrying case. www.Stingerworld.com

Composite Shake Shingles Offered in New Colors

DaVinci Roofscapes launches the Nature Crafted Collection of composite shake shingles, which includes three realistic, nature-inspired colors: Aged Cedar,Mossy Cedarand Black Oak.According to the manufacturer, each new color reflects different progressive aging processes found on real shake shingles. Each tile has been crafted to resist fire and impact, along with high winds, mold, algae, fungus and insects. The Nature Crafted Collection is available on all DaVinci Multi-Width and Single-Width Shake composite roofing tiles. www.DaVinciRoofscapes.com

Solar Mounting Platform Designed for Exposed Fastener Panels

S-5! introduces the SolarFoot, a mounting platform designed for exposed fastener metal roofing. With four points of attachment, it provides an ideal mounting platform to attach the L-Foot of a rail-mounted solar system or other ancillaries to the roof. According to the manufacturer, the SolarFoot ensures a durable, weathertight solution for the life of the solar system and the roof. Each piece contains two reservoirs of a factory-applied butyl co-polymeric sealant, allowing a water-tested seal. Simply peel the release paper from the butyl sealant and fasten through the predrilled holes in the base of the SolarFoot. www.S-5.com

3-D Modeling Tool Aids in Solar Design Projects

Aurora Solar Inc., a solar design software company, offers SmartRoof, a tool that allows anyone to accurately and easily model residential and commercial sites for solar projects. According to the company, SmartRoof intelligently infers the internal structure of a roof after a few clicks, reducing solar design time and difficulty.According to the company, SmartRoof requires just an outline of the perimeter of the roof to automatically infer its internal structure. It allows solar designers to drag and drop dormers into the model.The remote site modeling tool enables designers to intersect multiple roof structures, making modeling of complex roof structures significantly easier. www.AuroraSolar.com

Perforated Starter Shingle Designed to Save Time, Reduce Waste

TAMKO Building Products introduces the Perforated Starter shingle to its roofing product line. Made from fiberglass mat coated with asphalt and surfaced with ceramic granules, the Perforated Starter course shingle is the answer to roofing contractors need for an easy to install starter strip prior to shingle application. The perforation ensures that contractors no longer lose time field cutting shingles to the appropriate size while reducing related waste. The product can be used with TAMKO’s full line of asphalt shingles, including the Heritage series laminated asphalt shingles and Elite Glass-Seal 3-Tab shingles. www.TAMKO.com

Snow-Retention System Utilizes Snap-Fit Design

AceClamp offers the Color Snap, a patented snow-retention system that utilizes a snap-fit design. The product ships to roofers with fully assembled, ready-to-install components and snap-in ice clips. Color Snap is available for either standing seam metal roofing or membrane roofing with a variant of the product known as Color Snap-M. According to the company, both varieties offer greater installation flexibility, are easier to install, and help to reduce labor costs by minimizing preparatory tasks. www.AceClamp.com

Sheet Metal Brake Designed to Reduce Labor Costs

Roper Whitney releases the Autobrake 1212, which is designed to provide accuracy and repeatability when forming 12-gauge mill steel and 14-gauge stainless steel. It features the rotating Kombi beam, which expands the machine’s folding capabilities to produce straight to box and pan bending in just 11 seconds. The box tooling is 6.3 inches in height, precision ground and laser hardened to 60. Pieces are also laser etched with the length of the tool for easy box setup. Optional left-hand or right-hand back gauge extension provides superior material positioning. Maximum 12-foot back gauge travels in less than three seconds and is provided by the six-stage design combining high speed with compact space requirements. www.RoperWhitney.com

Modified Bitumen Products Can Now Be Applied in Colder Temperatures

CertainTeed’s Flintlastic SA (self-adhering) modified asphalt low-slope roof systems can now be installed in temperatures as low as 20 degrees Fahrenheit. According to the manufacturer, the products can be installed using an application method that is safe for both installers and building occupants, as it uses no kettles or flames and has no hazardous or noxious fumes. Roofing pros only need a hot air welder and silicone roller to complete installations in cold weather, and the change is designed to help alleviate costly weather delays while making a direct impact on roofing contractor’s bottom line. www.CertainTeed.com

Multi-Purpose Joint Sealant Adheres to Damp Surfaces

Kemper System AmericaInc.offers GreatSealPE-150, a single-component joint sealant designed for long-lasting weathertight seals. According to the manufacturer, it is ideal for sealing joints in roofing, walls and masonry, as well as gaps around penetrations, flashings, windows and doors. According to the company, the product adheres even on damp surfaces, can be applied in cold weather, and in most cases, without a primer. It bonds aggressively to most building materials, including wood, vinyl, glass, fiberglass, foam insulation, asphalt, modified bitumen, EPDM, PVC, PIB rubber, and Kynarcoatings, as well as painted, galvanized and anodized metals. www.Kempersystem.net

New Colors Available for Concrete Tile Line

Boral Roofing LLC introduces a set of new colors for its signature concrete roof tile line. Inspired by the beach landscape, the six new hues in the collection are particularly well suited to complement homes of the contemporary and transitional architectural styles, according to the manufacturer. The collection includes new colors Ashen Blend, Café Sand Blend, Mottled White Blend, Atmosphere Blend, Oceana Blend, and Beach Blonde Blend, with each shade reflecting an element commonly found at the seaside. The tile is low maintenance, offers a Class A fire rating, and is fully recyclable at the end of its life on the roof. www.Boralamerica.com/roofing

New Sealant and Patch Mastic Designed for Durability, Sustainability

Chem Link launches NovaLink FP, a flash and patch mastic product, available in a 10.1-ounce cartridge. NovaLink FP is a high-quality, moisture-curing elastomeric waterproofing and sealant designed to fill, seal and level grout lines, voids, seams and surface damage on construction materials prior to application of liquid waterproofing. According to the manufacturer, the product is also useful for repairing roof leaks, asphalt shingles, roof valleys and seams, chimney flashings and in emergency roof repair situations. www.ChemLink.com

Shingles Offer Time-Release Technology to Fight Algae Growth

Seeking to reduce the prevalence of unsightly shingle discoloration caused by blue-green algae growth, which impacts 80 percent of U.S. homes, GAF introduces StainGuard Plus Technology. According to the manufacturer, the company’s proprietary time-release copper ion technology releases 10 times as much stain-fighting copper as its traditional copper coated mineral granules to better resist the growth of algae. This technology is currently available on GAF’s Timberline Ultra HD Stainguard Plus labeled shingles and is backed by a 25-year limited warranty against blue-green algae discoloration. www.GAF.com

Fasteners Designed to Attach Sheeting Over Rigid Insulation

Triangle Fastener Corporation expands its line of BLAZER Drill Screws with new sizes designed to attach metal panels over rigid insulation. These unique screws have two different threads with a gap in between that eliminates jacking of the panel during installation. According to the manufacturer, the special 1/4-14 “high thread” under the screw’s head secures the metal panel tightly against the head for optimal seal. The screws have a BLAZER3 drill point for fast penetration with less effort and a TRI-SEAL spray coating for corrosion protection. They are available in lengths including: 1-7/8, 2-3/8, 3-1/4 and 4 inches. www.Trianglefastener.com

Hip and Ridge Product Offers Added Thickness

TAMKO Building Products Inc. introduces its new Heritage Designer Ridge asphalt shingle. Constructed with SBS modified bitumen technology, the high-profile ridge product is designed to add a look of polished sophistication to finish asphalt roofing projects with style, according to the manufacturer. Two layers of asphalt shingles are laminated together to produce the high-definition appearance of added dimension in the Heritage Designer Ridge, which is up to a half inch thicker than TAMKO’s standard Heritage hip and ridge product.The product is offered in 10-inch and 8-inch overlap. www.TAMKO.com

Storm Repair System Uses Shrink Wrapping Technology

Stormseal is a storm recovery system that protects damaged roofs or walls with a patented wind-, rain- and hail-resistant polyethylene film. The technology, pioneered in Australia, is now available in the United States. According to the manufacturer, Stormseal is designed to replace flapping, leaking, flyaway tarpaulins. The low-density patented polyethylene film is cut and fitted at the worksite with the heat “shrink wrapping” technique, changing the chemical structure of the film and enhancing its strength. www.Stormseal.com

New Electric Hoist Moves Operator Away From the Load

Safety Hoist Company launches its new electric material hoist, which moves the operator a safe distance away from the hoist and its load. According to the manufacturer, its unique pendant control makes this one of the safest hoists available today. The hoist runs on 110-volt electric household current, and its controlled descent enables safe, smooth transport both up and down. The electric hoist is quiet, environmentally-friendly, and free from harmful emissions, so it can be used both indoors and outdoors. It can handle up to 500 pounds without sacrificing speed or efficiency. www.SafetyHoistCompany.com

New Line of Fasteners Designed for Extreme Environments

The new 40-year Ply-Lo Extreme line of fasteners from East Coast Fasteners is designed for extreme environments. According to the manufacturer, Ply-Lo Extreme was successfully tested in accordance to ASTM B117 for more than 3,000 hours of salt spray. With all the features of the original Ply-Lo fastener, the Ply-Lo Extreme is available in #10, #12 and #14, with a 40-year warranty. www.Plyco.com

Adjustable Steep-Slope Roof Anchor Aids Ladder Access

The RIDGEPRO is a versatile and adjustable roof anchor that can be connected to the peak before stepping onto a steep-slope roof, allowing a safe transition on and off ladders on roofs with pitches ranging from 6/12 to 12/12. The innovative arch straddles ridge vents, and the adjustable, pitch-specific settings are designed to maximize contact between the product and the roof surface. Constructed from solid, aircraft-grade aluminum, it exceeds industry standard of 5,000-pound tensile strength test when anchored. www.TheRidgePro.com

Primer Adheres to Single-Ply Membranes

Everest Systems offers Everprime All Ply, a primer for various new and aged single-ply membranes. According to the manufacturer, this high-quality, plasticizer free, single component, solvent-based primer can be applied by a spray brush or a roller. The product is designed to provide exceptional adhesion to new and aged TPO and PVC membranes. In addition, this high-performance coating provides excellent surface for subsequent application of acrylic, 100 percent solids Silicone and fluoropolymer coatings. www.Everestsystemsco.com

Work Gloves Offer Advanced Fit, Safety and Comfort

PrimeSource Building Products offers GRX Gloves, a brand-new line of quality gloves designed to promote hand safety and offer value for American workers. According to the manufacturer, GRX Gloves offer workers the latest technology in comfort, fit and safety to deliver a range of tighter fitting, more breathable gloves for a variety of applications and weather conditions. The GRX glove line will be available through the PrimeSource network of pro-contractor supply location and pro-supply locations like 84 Lumber and BMC. www.PrimesourceBP.com

Retrofit Roof Drains Feature Integrated Vortex Breaker

OMG Roofing Products introduces a new line of retrofit roof drains called Hercules-Plus. The drains feature integrated vortex breaker technology, which helps improve drain performance to quickly remove water from the roof. According to the manufacturer, independent performance testing shows that Hercules-Plus RetroDrains provide up to 2.5 times greater flow capacity than original Hercules Drains without vortex breaker technology. Drains are available in four sizes: 3 inches, 4 inches, 5 inches and 6 inches, and with an optional TPO or PVC coated flange for direct membrane attachment. www.OMGRoofing.com

Conductive Primer Developed for Electronic Testing

Detec Systems has developed TruGround, a conductive primer which enables accurate electronic leak detection (ELD) testing on conventional roof membranes including black EPDM, TPO, PVC, modified bitumen, hot and cold fluid applied. According to the manufacturer, TruGround must be installed directly below the membrane per ASTM D7877. TruGround can be used for quality assurance testing on newly installed membranes and is chemically compatible with fully adhered, mechanically attached and torch-down membranes. Once applied, ELD testing can be performed for the life of the roof. Future breaches or seam voids can be quickly pinpointed, allowing repairs to be done immediately, preventing costly moisture damage from occurring. www.DetecSystems.com

Structural Acoustical Roof Decks Reduce Noise Levels

Tectum Structural Acoustical Roof Deck solutions from Armstrong Building Solutions provide predictable noise absorption, durability, and sustainability to meet building design needs. Composite roof deck options provide R-values up to 44. By providing noise absorption up to 0.80, the panels often eliminate the need for additional acoustical treatments, providing faster and easier installations than standard steel roof decks. According to the manufacturer, Tectum Roof Decks are an ideal noise reduction solution for large, high traffic, exposed structure spaces such as auditoriums, gymnasiums, arenas, pools, ice arenas and multi-use facilities. www.ArmstrongBuildingSolutions.com

Underlayment Can Be Used in Vertical Applications

MFM Building Products announces that its Ultra HT Wind & Water Seal high-temperature roofing underlayment can be used for vertical side wall applications. This self-adhering membrane is composed of a cool white, cross-laminated, high density polyethylene film laminated to a high-temperature rubberized asphalt adhesive system rated to 250 degrees Fahrenheit. According to the manufacturer, this premium product is extremely tough, is self-sealing around fasteners and offers a 90-day UV exposure rating. The company states that Ultra HT is ideal for vertical applications under metal panel systems and parapet walls capped with metal tiles. Special installation instructions must be followed for all vertical applications. www.MFMbp.com

Gravity Vent Delivers Natural Ventilation

Acme Cone Company introduces a new gravity vent that delivers natural ventilation for buildings with single-ply roofs when windows and other ventilation solutions are not an option.The vent is available in standard sizes of 12, 18 and 24 inches in white, gray and tan. It is now available for order and immediate shipment.According to the company, contractors using Acme Cone’s prefabricated flashings benefit from more efficient and productive crews who aren’t spending unnecessary time flashing in the field. www.AcmeCone.com

Fluid-Applied Roofing System Available in New Colors

Tremco Roofing and Building Maintenancelaunches six new AlphaGuard BIO Top Coat colors: light gray, medium gray, dark gray, sand, beige and safety yellow. The line enables Tremco Roofing to better support its customers’ aesthetic and safety requirements on the company’s AlphaGuard BIO projects. AlphaGuard BIO, Tremco Roofing’s fluid-applied roofing system, is an excellent choice for restoring older but still functional roofs; both the Top Coat and Base Coat have received BioPreferred certification from the U.S. Department of Agriculture.The new colors add to an already robust palette for AlphaGuard Top Coat, which includes such options as terra cotta, garnet and patina green. www.TremcoRoofing.com

Pitch Pans Can Be Used on Horizontal and Vertical Surfaces

The new ShapeShift line from Mule-Hide Products Co. Inc. is a single solution for creating pitch pans for use in virtually any low-slope roofing job, including with smooth modified bitumen systems and on both horizontal and vertical surfaces. The line — consisting of ShapeShift Pitch Pan straight and outside corner sections and MP Liquid Sealant — can be used with EPDM, TPO, PVC, metal, spray polyurethane foam (SPF), elastomeric acrylic coating, smooth modified bitumen and smooth built-up roofing systems. The straight and corner sections feature interlocking joints and snap together to form square and rectangular pitch pans 4 inches by 4 inches and larger. www.MuleHide.com

Ridge Vent Provides 15 Square Inches of Net Free Area Per Foot

Keene Building Products offers Viper Vent, a patented, lightweight ridge vent that provides 15 square inches of net free vent area per linear foot. According to the manufacturer, its double-density edge provides superior strength and rigidity, ensuring its ability to maintain a sleek finished look that makes it virtually invisible from the curb. The filter is manufactured with extra thick fibers, and the company states the UV resistant textile allows it to provide superior airflow over its lifetime. Viper Vent is available in a variety of lengths and can be applied on an asphalt, wood, tile, metal, or slate roof. www.KeeneBuilding.com

Dual-Component Extruder Minimizes Downtime

The Garlock Cyclone 5/15 Dual-Component Extruder is designed to significantly reduce the time and materials needed to adhere rigid insulation and cover boards to structural roof decks, as well as adhering fleece backed single-ply membranes in both new roofing and recover operations. The Cyclone equally dispenses a two-component, 1:1 ratio low viscosity polyurethane adhesive. Users can access connectors and load chemical containers from the front without kneeling or crouching, and the adjustable gun assembly and ergonomic design help reduce application errors and training time. www.GarlockEquip.com

 

Kemper System Hosts New York Building Envelope Symposium

Attendees of the N.Y. Building Envelope Symposium witnessed how to turn a roof into a reflective Cool Roof with a new odor-free membrane from Kemper System.

The first New York Building Envelope Symposium sponsored by Kemper System America, Inc. drew about 50 top consultants and specifiers to a one-day educational forum at the 101 Club on Park Avenue in New York, Nov. 16. Sponsored in partnership with ZinCo USA and KEIM Mineral Coatings of America, the symposium featured presentations on: Green Roof technology, Performance standards for air barriers, Blue Roofs & stormwater management, Mineral silicate finishes for masonry and concrete, and Inspections for liquid-applied roofing and waterproofing membranes.

“The roots of our success are here in New York, so we wanted to give back with a co-sponsored event that would allow participants to network and learn from multiple perspectives,” said Richard Doornink, President and Managing Director, Kemper System America. “ZinCo, KEIM and Kemper are all complementary systems.”

Qualified attendees are also eligible for continuing education (CE) credits from the American Institute of Architects, U.S. Green Building Council, and RCI.

“CE credits are helpful, but the main reason I attend is to learn what’s new and to stay up-to-date on materials, systems and code requirements for the building envelope,” said Kevin Bone, Principal of Bone Levine Architects. The New York City-based firm has extensive experience in architectural and structural upgrades, building additions, exterior envelope design and
maintenance, and historic preservation. The firm also has realized numerous award-winning designs for modest residential projects and is well known for its research on the city’s water infrastructure.

Presenter Nicholas Smith, National Account Manager of ZinCo USA, commented: “We received a lot of positive feedback from attendees, including those at various stages of green roof design.” The consulting firm has been involved on several of the same green roof projects as Kemper System in New York and beyond. “High-rise urban environments are especially
challenging for green roofs, so you have to design them properly if you expect long-term performance,” he said.

Presenting for Kemper System was National Design & Specification Manager Brian Kelly, CSI CDT, LEED Green Associate. Presenting for KEIM Mineral Coatings of America were Technical Sales Executive Anthony Truppi and Technical Field Specialist Perri Robinson.

For more information, visit www.kempersystem.net.

Multi-Purpose Joint Sealant Adheres to Damp Surfaces

Kemper System GreatSealKemper System America Inc. offers GreatSeal PE-150, a high-performance, single-component, multi-purpose joint sealant designed for long-lasting weathertight seals. According to the manufacturer, it is ideal for sealing joints in roofing, walls and masonry, as well as gaps around penetrations, flashings, windows and doors.

Based on a polyether sealant, GreatSeal PE-150 contains no solvents and very low VOCs. The multi-purpose indoor/outdoor sealant exhibits excellent weathering properties with a service range of 200oF to minus 40oF (93oC to minus 40oC), movement capability of +/- 25 percent, and zero shrinkage.

According to the company, the product adheres even on damp surfaces. It can be applied in cold weather, and in most cases, without a primer. It bonds aggressively to most building materials, including wood, vinyl, glass, fiberglass, foam insulation, asphalt, modified bitumen, EPDM, PVC, PIB rubber, and Kynar coatings, as well as painted, galvanized and anodized metals.

GreatSeal PE-150 is part of a family of construction sealants from Kemper System. The GreatSeal brand also includes GreatSeal LF-500 Liquid Flashing compatible with Roof Guardian elastomer-based roofing products, and GreatSeal LT-100 polyether Liquid Tape compatible with Wall Guardian FW-100A, a liquid-applied fibered acrylic air barrier. All three brands are in the STS Coatings line, acquired by Kemper System America in 2016.

For more information, visit www.kempersystem.net.

Kemper System Features Cost-Effective ‘Cool Roof’ Solutions

Kemper System America Inc. now offers two cost-effective ‘cool roof’ solutions for prolonging the life of metal, BUR, modified bitumen and aged single-ply roof systems.

Roof Guardian RG-170 is an elastomer-based coating system ideal for extending the life of many types of roofing assemblies. Formulated using a 100 percent acrylic polymer base for enhanced adhesion and durability, the coating features a high Solar Reflectance Index (SRI) rating of 109 and is Class A fire rated. Roof Guardian RG-180 is a fiber-reinforced elastomeric coating with an acrylic polymer base, ideal for metal, concrete, single ply, modified bitumen, and granular cap sheets. It offers an SRI rating of 108.

“Kemper System has been at the vanguard of liquid-applied roof waterproofing solutions for decades. These two new white Roof Guardian coating systems offer a quick and cost-effective approach for transforming many kinds of existing low-slope roofs into a cool roof that can help building owners cut cooling costs,” says Jim Arnold, Director of Product Development for Kemper System.

Part of the company’s Roof Guardian Technologies line, the roof coatings can be quickly applied with a commercial-grade sprayer or roller. The highly reflective bright white finish lowers the surface temperature of the substrate to reduce thermal transfer into the structure. This high solar reflectance helps lower indoor temperatures to reduce building cooling requirements.

Formulated to resist cracking and peeling, both products provide excellent waterproofing and long-term mildew resistance. Both solutions are Energy Star and Cool Roof rated.

“For more than 60 years, Kemper System has been a global industry leader in cold liquid- applied, reinforced roofing and waterproofing, having invented the technology and holding the first patents,” says Arnold. “Today the company offers a full range of building envelope solutions to protect against weather, preserve the integrity of surfaces, and enhance the comfort and value of buildings.”

This portfolio encompasses Wall Guardian fibered acrylic air barrier, Roof Guardian Technologies elastomer-based roof coatings, and HeatBloc-ULTRA radiant heat barrier. Other high-value brands include COLEAN traffic coating systems, and the company flagship for exterior and interior waterproofing, Kemperol reinforced membrane systems.

LEARN MORE

Visit: Kempersystem.net
Call: (800) 541-5455
Email: inquiry@kempersystem.net

Kemper System Names West Coast Regional Sales Manager

Kemper System America Inc. has named Lynn Walters as the company’s West Coast Regional Sales Manager. In the role, Walters will have responsibility for expanding sales and educating architects, consultants and contractors across the region about the company’s range of barrier solutions for the building envelope.

Based in the San Francisco area, he joins the company from STS Coatings Inc., acquired by Kemper System last year, and he brings more than two decades of sales and marketing experience to his new role.

Walters currently serves on the board of directors of the Reflective Insulation Manufacturers Association (RIMA), and as committee chair for the Strategic Alliance for the Air Barrier Association of America (ABAA). He is also a member of the Cool Roof Rating Council, RCI Inc. and ASTM International.

At STS Coatings, Walters served nine years as National Sales Manager, and also as Product Manager representing HeatBloc-ULTA radiant heat barrier. Previously, he spent 12 years as West Coast Sales Manager for the OEM Building Products Division of BASF.

Liquid-Applied Coating Systems for Modified Bitumen and Metal Roofs

Roofing contractors can transform existing modified bitumen roofs or metal roofs into white reflective cool roofs with two new roof recovery options from Kemper System. Roof Guardian RG-170 (SRI 109) is a Class A fire-rated elastomer-based coating system for prolonging the life of modified bitumen assemblies. Roof Guardian RG-180 system (SRI 108) is ideal for recovering metal roof assemblies.

The Roof Guardian line of liquid-applied elastomer-based roof coatings also spans solutions for smooth-surfaced built-up roofing (BUR), polymer-modified asphalt (PMA), and single-ply roof systems.

Both RG-170 and RG-180 are formulated using an acrylic polymer base that provides outstanding adhesion and superior reflectivity. The bright white finish reduces surface temperatures, thereby minimizing thermal expansion and contraction. Under-the-roof temperatures are also reduced, lowering energy costs. Formulated to resist cracking and peeling, both products provide excellent waterproofing capabilities and long-term mildew resistance. RG-170 and RG-180 are Energy Star and Cool Roof rated and now have 3-year weathering test results. Elastomeric coatings from Kemper System

White Coating Improves Energy Efficiency

The Kemperol Reflect 2K FR from Kemper System is a cold, liquid-applied reinforced cool roofing system that can improve building energy efficiency.

The Kemperol Reflect 2K FR from Kemper System is a cold, liquid-applied reinforced cool roofing system that can improve building energy efficiency.


The Kemperol Reflect 2K FR from Kemper System is a cold, liquid-applied reinforced cool roofing system that can improve building energy efficiency. The white surface helps reflect sunlight and reduce the impact of infrared rays that can tax building cooling systems. The easy-to-apply, fully reinforced membrane is applied the same way as Kemper System’s Kemperol 2K-PUR solvent- and odor-free system, but the new liquid waterproofing pours out white and dries to a bright white. Because no topcoat is necessary, labor costs and installation times are reduced. The system consists of 70 percent rapidly renewable resources, is fire-rated for Class-A assemblies, and is odor-free and low-VOC.