Product Series Allows Roofs to Be Customized

Johns Manville has debuted the DynaFast product series, developed from its first-generation ASTM D6164 DynaLastic platforms.

Johns Manville has debuted the DynaFast product series, developed from its first-generation ASTM D6164 DynaLastic platforms.


Johns Manville has debuted the DynaFast product series, developed from its first-generation ASTM D6164 DynaLastic platforms. DynaFast SBS modified bitumen membranes are designed to be mechanically fastened. Together, DynaFast 180 S, DynaFast 180 HW and the DynaFast250 HW provide a vast assortment of options to customize any commercial roofing job. The system requires fewer fasteners for the same wind-uplift rating as traditional system fastening and gives you the choice of fasteners. DynaFast may be used in high and low wind zones. There’s an application for every job, including hot, cold and heat-weld applications. Roll lengths of 1 square or 1 1/2 square with varied thicknesses mean faster installation.

TPO Membrane Features Enhanced Adhesive

GenFlex Roofing Systems has introduced an enhanced self-adhesive technology for its EZ TPO Peel & Stick membrane.

GenFlex Roofing Systems has introduced an enhanced self-adhesive technology for its EZ TPO Peel & Stick membrane.


GenFlex Roofing Systems has introduced an enhanced self-adhesive technology for its EZ TPO Peel & Stick membrane. The new adhesive formula offers twice the bonding strength and can be installed in temperatures as low as 20 F and as high as 120 F. The new adhesive also has no VOCs and is odor-free. Therefore, the membrane is safe for installers and building tenants, avoiding any delays or concerns when working in occupied buildings.

Metal Roofing Underlayments Protect Structures in Hawaii

The newly constructed Safeway Shopping Center, Honolulu, happens to be the largest Safeway on the Hawaiian Islands. It contains a parking garage below—in part, because of its location in a densely populated neighborhood.

The underlayment manufacturer worked on and approved a design in which the underlayment could be installed directly on the metal deck.

The underlayment manufacturer worked on and approved a design in which the underlayment could be installed directly on the metal deck.

ITS METAL ROOF WAS INSTALLED by Kapolei, Hawaii-based Beachside Roofing, which has been doing business in Hawaii for more than 25 years. The company, which installs all kinds of roofing and waterproofing systems, specializes in high-rise buildings, resorts and complex projects.

The 20,000-square-foot metal roof on the Safeway store had to meet strict color requirements in keeping with the Safeway brand. The color of the roof is Gargoyle, which is a greenish-brown.

The metal roofing was designed to be installed over corrugated 20-gauge steel decks. The underlayment manufacturer worked on and approved a design in which the underlayment could be installed directly on the metal deck.

The metal deck (HSB-36SS type) was installed with the wider corrugations facing up and parallel to the eaves (horizontally). The self-adhering underlayment also was installed horizontally, and the metal panels were then attached to the horizontal corrugations of the deck using panel clips and self-drilling fasteners penetrating through the underlayment into the flattop of the corrugations of the steel deck.

The self-adhering underlayment also was installed horizontally, and the metal panels were then attached to the horizontal corrugations of the deck using panel clips and self-drilling fasteners penetrating through the underlayment into the flattop of the corrugations of the steel deck.

The self-adhering underlayment also was installed horizontally, and the metal panels were then attached to the horizontal corrugations of the deck using panel clips and self-drilling fasteners penetrating through the underlayment into the flattop of the corrugations of the steel deck.

The walkability of the underlayment was an important factor, considering that the roof slope was 4 inches per 12 feet in some places. Also, the 120-day exposure allowance for the underlayment was reassuring, though not necessary for this project.

The metal roofing system included many architectural elements, such as canopies, penthouses and mansards. It covers not just the Safeway supermarket, but also other shops in the Safeway Shopping Center. The way the metal was used architecturally really dressed up the exterior of the project.

Secondary Water Barrier

A self-adhering metal roofing underlayment, like the one on the Safeway Shopping Center, perfectly complements metal roofing panels. The underlayment provides a watertight secondary membrane while the metal panels serve as the primary roof to protect against wind-blown objects and UV radiation. If the primary roof is damaged, the secondary roof acts as the water barrier.

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GAF Completes Extensive Roof Replacement Project at Corporate Headquarters

GAF has completed an extensive roof replacement project at its new corporate headquarters at 1 Campus Drive in Parsippany, N.J. GAF has been relocating to the new property, which has been completely renovated with quality products in all areas—including, of course, the roof.

GAF worked closely with its Master Select Contractors to ensure the installation of an energy-efficient roofing system at 1 Campus Drive. The system included GAF’s RUBEROID HW 25 Smooth Membrane, EnergyGuard Polyiso Insulation (for high insulation value), and EnergyGuard HD Cover Board (which offers a high R-value and impact resistance). It also included GAF’s single-ply membrane, EverGuard Extreme Fleece-back TPO Membrane. GAF is proud of how EverGuard Extreme Fleece-back TPO Membrane outperforms competitive TPO membranes (based on heat-aging tests), and backs it with a commercial roofing guarantee.

As GAF prepared to move into its corporate headquarters, it was imperative to make sure they had a durable, energy-efficient and easy-to-install roofing system. The combination of GAF EverGuard Extreme Fleece-back TPO Membrane in 2-Part Roofing Adhesive over EnergyGuard HD Cover Board and EnergyGuard Polyiso Insulation set in Olybond, along with RUBEROID HW 25 Smooth Membrane was the perfect system to keep its building dry and comfortable for years to come.

When using EverGuard Extreme Fleece-Back TPO Membrane with Low-Rise Foam Adhesive (compared to EverGuard Extreme Smooth TPO Membrane), the fleece on the back of the membrane provides an added cushioning layer, especially for hail-prone areas. Also, when combining EverGuard Extreme TPO Accessories with EverGuard Extreme Fleece-Back TPO Membrane, it helps save labor (versus field fabrication)—and provides an overall cleaner-looking roof.

Slit Membrane While Standing

Everhard Products Inc.’s Standup Membrane Slitter allows roofing workers to work on their feet rather than hands and knees.

Everhard Products Inc.’s Standup Membrane Slitter allows roofing workers to work on their feet rather than hands and knees.


Everhard Products Inc.’s Standup Membrane Slitter allows roofing workers to work on their feet rather than hands and knees. The slitter cuts straight or curved lines and features a removable slitter cartridge that uses standard, easily replaceable utility blades. Its design helps prevent accidental punctures and won’t damage the surface under the membrane. A yellow pointer helps users follow scribed lines.

More Colors Available for 80-mil Membranes

Duro-Last Inc. is pleased to make Duro-Tuff and Duro-Fleece colors available for 80-mil membranes.

Duro-Last Inc. is pleased to make Duro-Tuff and Duro-Fleece colors available for 80-mil membranes.


As part of its commitment to serving its customers, Duro-Last Inc. is pleased to make Duro-Tuff and Duro-Fleece colors available in 80 mil. Colors available include blue, charcoal, copper, dark green, light gray, light tan, patina and white.

Resuscitate Metal Roofs and Walls with a Reflective Restoration Coating

“Roofers’ Choice” was determined by the product that received the most reader inquiries from the July/August 2014 issue’s “Materials & Gadgets” section.

The Garland Co. Inc. recently introduced its CPR System, a highly reflective, low-odor, synthetic liquid rubber membrane designed to waterproof and restore existing metal roof and wall panel systems, delaying costly roof replacement and improving the overall performance of the roof system.

The Garland Co. Inc. recently introduced its CPR System, a highly reflective, low-odor, synthetic liquid rubber membrane designed to waterproof and restore existing metal roof and wall panel systems, delaying costly roof replacement and improving the overall performance of the roof system.

The Garland Co. Inc. recently introduced its CPR System, a highly reflective, low-odor, synthetic liquid rubber membrane designed to waterproof and restore existing metal roof and wall panel systems, delaying costly roof replacement and improving the overall performance of the roof system.

This lightweight, multi-layer waterproofing system will only add one-fifth of a pound per square foot to existing roof systems when completed, eliminating the time and cost associated with engineering a new roof system. The CPR System provides resistance to UV damage and deterioration caused by weathering by forming a rubber-like monolithic membrane over the entire surface. It is designed for application to properly prepared stainless steel, galvanized metals, Galvalume-coated metals, copper, aluminum and Kynar-coated metal roof systems.

According to Tom Stuewe, a Garland product manager: “The CPR System is the answer for building owners or facility managers who don’t have the budget for a replacement but need to extend the life of their roof system. The ease of application makes it ideal for in-house maintenance use, and its cold-process, low-odor formulation allows restoration projects to proceed with minimal disruptions to building operations and occupants.”

The CPR System is available in brush-or-trowel-grade versions and can be easily applied over sloped, contoured surfaces. When properly installed and maintained, this system can provide an additional 10 to 15 years of service life.

PHOTO: THE GARLAND CO. INC.

Learn More

Visit GarlandCo.com.
Call (800) 321-9336

Scan for Moisture in a Variety of Membranes and Insulation Thicknesses

Tramex Dec Scanner

Tramex Dec Scanner

The Tramex Dec Scanner is a mobile non-destructive impedance moisture scanner designed for the instant surveying of moisture conditions in roofing and waterproofing systems. Three ranges of sensitivity enable the inspection of a variety of roof membranes and insulation thicknesses. By moving the Dec Scanner across a roof surface in a regular pattern, a continuous reading is obtained and areas that contain moisture can be readily identified. It includes an ergonomic, easy-to-reach and easy-to-operate control panel.

Membrane Restores Existing Metal Roofs

The Garland Co. Inc. has introduced its CPR System, a highly reflective, low-odor, synthetic liquid rubber membrane designed to waterproof and restore existing metal roof and wall panel systems.

The Garland Co. Inc. has introduced its CPR System, a highly reflective, low-odor, synthetic liquid rubber membrane designed to waterproof and restore existing metal roof and wall panel systems.

The Garland Co. Inc. has introduced its CPR System, a highly reflective, low-odor, synthetic liquid rubber membrane designed to waterproof and restore existing metal roof and wall panel systems. The lightweight, multi-layer waterproofing system will add 1/5 pound per square foot to existing roof systems when completed. It can be applied to properly prepared stainless steel, galvanized metals, Galvalume-coated metals, copper, aluminum and Kynarcoated metal roof systems. It is available in a brush- or trowel-grade version and can provide an additional 10 to 15 years of service life.

Project Profiles: Health Care

MASSACHUSETTS GENERAL HOSPITAL, BOSTON

TEAM

Roofing contractor: Chapman Waterproofing Co., Boston
Architect/engineer: Cambridge Seven Associates Inc., Cambridge, Mass.
Membrane and waterproofing manufacturer: Kemper System America Inc.

Massachusetts General Hospital, Boston, features a Kemperol waterproofing and roofing membrane for its green roof.

Massachusetts General Hospital, Boston, features a Kemperol waterproofing and roofing membrane for its green roof.

ROOF MATERIALS

The Kempertec EP-Primer was used to prepare the substrate surfaces for membrane installation and served as a temporary waterproofing system, allowing the project to be exposed to the harsh New England winter while it was completed in phased stages.

The owners chose the Kemperol waterproofing and roofing membrane, a two-component with catalyst, high-performance, seamless and self-terminating cold-fluid-applied reinforced unsaturated polyester system. The monolithic edge-to-edge rot- and root-resistant Kemper membrane is engineered to resist degradation from UV exposure and heat intensity and is resistant to most common chemicals.

ROOF REPORT

Founded in 1811, Massachusetts General Hospital is the third oldest general hospital in the U.S. and the oldest and largest in New England. The 900-bed medical center offers sophisticated diagnostic and therapeutic care in virtually every specialty and subspecialty of medicine and surgery. When MGH’s owners envisioned constructing a new 9,000-square-foot green roof above the MGH cancer wing, they had two chief concerns: safety and long-term durability.

The landscaped roof design includes four different gardens with extensive shrubbery, trees and grass designed to provide cancer patients with a haven for relaxation and meditation to aid in the healing process.

A key challenge concerning the hospital’s green roof was its hundreds of penetrations, spaced inches apart, for a sprinkler system to irrigate the landscaped roof. A leak-detection system was installed across the entire square footage of the project to detect water before it seeps into the interior of the building. The leak-detection system confirms the project’s seal-tight success. Upon completion, Kemper System provided a 20-year, no-dollar-limit warranty.

PHOTO: KEMPER SYSTEM AMERICA INC.

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