Polyglass U.S.A., Inc. > United States

Project Country: United States

Mountain Island Charter School: An Energy-Efficient Roof Coating Project in North Carolina

A High-Performing Roof for a High-Performing School

A best-in-class education requires best-in-class facilities, and that includes a roof that keeps students and educators safe, and ensures learning happens in a comfortable environment.

That’s why Mountain Island Charter School, a K-12 tuition-free public school that serves students in the counties surrounding Mount Holly, North Carolina, called in the experts – We Coat Inc. and Polyglass USA – when it was time for a new coated roof system.

The Roofing Contractor: We Coat Inc.

We Coat Inc. is a veteran- and family-owned business based in Charlotte, North Carolina, that provides an eco-friendly substitute for roof replacement. The pros at We Coat know that a durable, high-performing, energy-saving roof is a major investment – one that requires a trusted partner. From schools like Mountain Island to retail spaces, warehouses and industrial facilities, We Coat and its certified applicators deliver safe and reliable results from start to finish.

We Coat’s roof coatings are built to strengthen and extend the life of clients’ roofs. Whether that roof is metal, flat or low-slope, We Coat’s efforts create a strong, weather-resistant barrier that keeps UV rays, moisture and wear at bay – sometimes at half the cost of other roofing options.

The Challenge: Extending the Life of an Aging TPO Roof

Like many schools managing tight facilities budgets, Mountain Island Charter School needed a way to protect and extend the service life of its existing Thermoplastic Polyolefin (TPO) roof without the cost and disruption of a full tear-off and replacement. The solution needed to restore waterproofing performance, improve energy efficiency, and hold up under North Carolina’s seasonal weather, all while keeping the 32,500-square-foot campus roof watertight throughout the project.

The Polyglass Solution: A Multi-Layer Elastomeric Coating System

The roof project at Mountain Island Charter School began with applying PolyBrite 79, a VOC compliant solvent-based primer, followed by PolyBrite 73, a premium-grade white elastomeric mastic with StretchSpan Technology™ (SST) applied directly to the existing Thermoplastic Polyolefin (TPO) roof’s flashing, penetrations, and details.

PolyBrite 77, a thermoplastic rubber coating and mastic designed for waterproofing a variety of structural surfaces, was applied next to seal fasteners. Then, a fully reinforced PG 700, a high-quality, water-based elastomeric coating that cures to form a seamless membrane, was applied over the entire roof area. In addition to keeping the surface cool with an initial SRI or 110, PG 700 extends the life cycle of new and existing roof systems, providing protection from ultraviolet sun and other weather exposures.

The new coating system improves the school roof’s sustainability thanks to higher reflectivity, and reduces the heat load and HVAC demand. Plus, the use of Polyglass USA products ensures that the newly coated roof has superior UV resistance, weatherability and waterproofing – extending roof’s life and reducing maintenance compared to the previous roofing system.

And the new roof comes with a 20-year No Dollar Limit (NDL) warranty – huge win for everyone involved.

Execution & Results

“As the contractor for the Mountain Island Charter School project, we selected Polyglass coatings for their proven performance and long-term durability,” shared We Coat’s Joe Sherlock. “The system’s high reflectivity and superior weather resistance provide enhanced energy efficiency and protection, ensuring the roof will perform for years to come. Polyglass’ technical support throughout the process helped us deliver a quality installation that meets the school’s needs and exceeds industry standards.”

By the Numbers

Location

13440 Lucia Riverbend Hwy.
Mount Holy, North Carolina

Size

32,500 square feet

Product Spotlight

PolyBrite 79

A Volatile Organic Compounds (VOC compliant) solvent-based primer designed to improve the adhesion of acrylic and silicone roof coatings to most aged Thermoplastic Polyolefin (TPO) membranes. Its orange color enables strong identification for the applicator to achieve complete, monolithic surface application.

PolyBrite 73

A premium-grade white elastomeric mastic with StretchSpan Technology™ (SST). This technology makes this product extremely pliable. PolyBrite 73 cures to form a seamless flexible, waterproof membrane that will expand and contract with the movement of the roof surface. Designed for use at various flashing and detail conditions when installing Polyglass’ elastomeric roof coating systems. Offers excellent adhesion, flexibility, high tensile strength and resistance to ultraviolet degradation.

PolyBrite 77

A thermoplastic rubber coating and mastic designed for waterproofing a variety of structural surfaces. The high-quality Styrene Ethylene/Butylene Styrene (SEBS) thermoplastic rubber mastic formula provides a brilliant white elastomeric film. Excellent for sealing screw heads and fasteners as well as horizontal and vertical seams on metal roofing systems. Can also be used over concrete and aged TPO membranes.

PG 700

A high-quality, water-based elastomeric coating available in white or tinted that cures to form a seamless membrane when applied over the entire roof area. In addition to keeping the surface cool with an initial SRI or 110, PG 700 extends the life cycle of new and existing roof systems, providing protection from ultraviolet sun and other weather exposures.

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PVC Roofing Membrane Upgrade: A Sustainable Roof Solution in Dallas

Featuring 19 meticulously manicured gardens, tree-lined pathways, and vibrant seasonal floral displays, a world-renowned arboretum and botanical garden in Texas creates a breathtaking urban oasis. The location is also home to world-class festivals every spring and fall and a cutting-edge educational facility focused on life and earth sciences.

In other words, it’s a cultural gem, a draw for guests from around the world, and a dynamic hub for environmental education and community engagement.

So, when it came time to reroof four buildings at the site, protecting the arboretum’s legacy was front of mind for roofing contractor Zenith Roofing and Polyglass, USA.

Zenith Roofing is a North Texas commercial roofing and waterproofing company that specializes in long-term roofing solutions for commercial and industrial properties. Zenith can handle anything roofing-related thanks to 45 years of experience in commercial applications, maintenance and repair, and residential projects.

From shopping centers to high-rises to hospitals, Zenith Roofing provides solutions to even the most challenging projects, making reroofing four buildings at the arboretum entrance a hurdle the Zenith team was prepared for.

That said, the project was not without issues. Very low parapet walls and unusual slopes made it difficult to ensure proper drainage. Using standard taper plans would be too high, and extremely low flashing areas presented additional challenges. With this in mind, Zenith turned to Polyglass USA’s PVC membrane products as the optimal solution.

“The project was originally specified as a bright white Polyglass modified bitumen roofing system. After evaluating the field conditions, however, the short capstone parapet and adjacent windows were determined to be better suited for a PVC application. Based on these conditions, local Polyglass representative Dylan Homa recommended Polyglass Mapeplan PVC as the preferred solution due to its greater flexibility and ability to accommodate the tight tolerances required for the project,” explained Zenith Roofing’s Tom Denton.

Roofing Systems Built for Energy Efficiency and Mechanically Attached Durability

The project included the use of an entire suite of Polyglass PVC products, including Mapeplan® PVC Roofing Membrane, Mapeplan® P SB, Mapeplan® P Prefabricated Accessories, Polylock™ LRF ECO, Polyglass Polytherm®, Polyflash® Flexible Curb Kit, and PolyFlash® 1C.

Today, the new roofs are sustainable, durable, and cost-effective. The benefits include:

  • Chemical and fire resistance:The updated roofs naturally resist damage from harsh chemicals, greases, and fire.
  • Durability:The flexible material withstands harsh weather, high winds and structural shifts without tearing or puncturing.
  • Energy efficiency:The Polyglass roofing materials act as a “cool roof” that reflects UV rays and helps lower cooling costs.
  • Proven performance:A Polyglass PVC roof lasts 20-30 years.

By the Numbers

Location

Dallas, Texas

Size

10,000 square feet

Product Spotlight

Mapeplan® PVC Roofing Membrane

A premium, high-performance thermoplastic membrane engineered for both mechanically attached and adhered roofing systems. Manufactured with top-grade polyvinyl chloride (PVC) resins and reinforced with a durable polyester scrim, Polyglass Mapeplan PVC delivers exceptional strength, flexibility, and long-term weatherability. With built-in resistance to chemicals, UV exposure, and fire, the membrane provides reliable protection and a long service life. Its highly reflective white surface reduces building energy use, minimizes maintenance requirements, and supports green building initiatives.​

Mapeplan® P SB

A contact-type bonding adhesive designed for bonding PVC membranes and flashings to horizontal and vertical roof substrates. The adhesive is formulated to provide strong bonding performance while meeting VOC restrictions and regulations. Mapeplan P SB is intended for use with Mapeplan PVC membranes and flashings and is not for use with Mapeplan PVC FB membranes.​

Mapeplan® P Prefabricated Accessories

Full range of engineered accessories designed to enhance detailing, durability, and installation efficiency. From reinforced and non-reinforced membranes for complex flashing conditions to prefabricated components that reduce field labor, each solution is built to ensure consistent, watertight performance at critical transition points. Together, these accessories help protect the most vulnerable areas of the roof, ensuring long-term performance at critical transitions.

Polytherm® Insulation

A highly energy-efficient rigid insulation board composed of a closed-cell Polyisocyanurate foam core laminated to a fiber-reinforced black non-asphaltic organic facer for superior bonding. Manufactured with a facer ideally suitable for many types of roofing products, including the direct application of ADESO® dual-compound self-adhered membranes under most project circumstances.

Polylock™ LRF ECO

A two-component, low-rise solvent-free polyurethane foam adhesive that provides fast, efficient insulation and fleeceback membrane attachment without high-GWP blowing agents. Its all-in-one canister system, adjustable application options, rapid cure time, and ultra-low VOC formulation help improve jobsite productivity, reduce environmental impact, eliminate deck penetrations, and enhance thermal efficiency.

Polyflash® Flexible Curb Kit

A roof penetration sealing kit that includes an aluminum-reinforced flexible polymer curb (52″) that can be cut to form multiple curbs, along with a 10.1 oz cartridge of Polyflash HPS to adhere the curb to the membrane, stainless steel locking clips, and a 2 L pouch of Polyflash 1PS to fill the curb. The curb’s flexible design is easily shaped to any sized geometry without special tools or custom forms.

PolyFlash® 1C

A one-component, moisture-cure silane-modified polyurethane, white flashing compound designed for sealing various roofing and waterproofing details such as walls, curbs, vents, roof drains, pitch pans, and unusually shaped penetrations. When combined with PolyBrite Reinforcing Polyester, this product easily solves typical and challenging flashing needs.

Complex Roof Replacement Simplified with a Single Product: Polystick® P HT Self-Adhered Roofing Underlayment

Even the most visually impressive homes require reliable protection, and this 5,000-square-foot custom residence in Newbury, Massachusetts, was no exception. With multiple roof planes, steep slopes, intersecting ridges, and architectural dormers, the existing roofing system had begun to fail, prompting a full replacement.

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BG Construction, a PremioSelect Contractor, was brought in to carry out the replacement. Upon removal of the existing roof system, the team uncovered extensive rot in the roof decking, requiring significant substrate remediation before any new assembly could begin.

The roof structure itself posed additional technical challenges.

 Key Technical Challenges

  • Rotten Decking: Required complete re-sheeting prior to membrane installation to ensure a stable and secure roofing substrate.
  • Complex Roof Geometry: Multiple valleys, dormers, steep slopes, and intersecting ridgelines increased installation complexity and required precise detailing.
  • Installer Safety Requirements: The project demanded a slip-resistant, high-adhesion membrane to support safe movement and secure footing for installation crews on steep pitches.
  • Weather Durability: Ice dam protection and high-temperature performance were essential due to harsh New England climate conditions.
  • Multiple Intersecting Planes and Gables: Numerous roof transitions elevated the risk of water infiltration, particularly at valleys and connection points, requiring enhanced waterproofing strategies.
  • Four Fully Built-Out Dormers: Each dormer required flexible, self-sealing materials to achieve clean integration and reliable long-term detailing.
  • Steep Pitch Slopes: Sharp roof angles necessitated membranes with strong walkability and slip resistance to maintain crew safety during installation.
  • Cold Climate Performance: Materials needed proven resilience against ice dam formation, thermal cycling, and high wind loads common in cold-weather environments.

Given these variables, BG Construction required a high-performance underlayment that could handle both the mechanical complexity and environmental exposure of the roof, without compromising longevity or ease of installation.

 The Solution: Polystick® P HT from Polyglass USA

To address these performance needs, BG Construction selected Polystick® P HT, a carrierless, self-adhered high-temperature waterproofing underlayment engineered to deliver long-term moisture protection in demanding environments.

 Installation Approach

  • After removal of damaged sheathing, the roof deck was re-sheeted and fastened per building code and manufacturer requirements.
  • Polystick P HT was applied directly to the entire roof deck, including under all flashing, along all valleys, and vertically up the dormer sidewalls to ensure continuous water shedding and to mitigate wind-driven rain.
  • The membrane was lapped and rolled per Polyglass installation guidelines, with all overlaps self-sealing for watertight performance.

 Why Polystick® P HT?

  • High-Temperature Performance: Rated for applications under metal and asphalt systems, Polystick P HT withstands high radiant heat loads without degradation.
  • UV-Resistant: Polystick P HT is also UV-resistant for up to 30 days, and the Hi-Tread™ UV-resistant and slip-resistant surface allows for shingles to be installed directly to it, eliminating the need for additional layers.
  • Carrierless Membrane Construction: Unlike traditional felt or SBS carriers, the membrane conforms effortlessly to complex geometries—ideal for flashing around roof penetrations, eaves, and multiple dormers.
  • Hi-Tread™ Surface: Enhances traction for installers, especially on steep pitches—an essential safety feature for this roof’s configuration.
  • Split-Release Film: Speeds up application without wrinkles or misalignments, even in colder conditions.
  • Ice Dam Resistance: Fully adhered coverage across eaves and valleys provides effective protection against freeze/thaw and ice dam formation, crucial for the Massachusetts climate.
  • UV Resistance: Withstands limited UV exposure, allowing for flexible scheduling between underlayment application and final roof covering installation.

 “It’s very durable and comes with incredible adhesive value, so our installers don’t have to worry about it releasing under their feet while they’re working on the roof,” said Barry Melanson of BG Construction. “It’s one of the best-performing membranes we’ve ever used.”

Support Beyond the Product: A True Partner in the Field

Beyond product selection and performance, BG Construction emphasized the importance of working with a manufacturer that understands contractor needs on the jobsite. Polyglass USA offered reliable delivery logistics, responsive warranty support, and contractor training that directly impacted project efficiency and confidence.

“We never have issues with deliveries or warranties when we work with the Polyglass team,” said Melanson. “And they sent our team down to Florida to get registered on new applications and warranty procedures, so everyone on our crew knew exactly how to apply it—and how it performs under pressure.”

By the Numbers

Location

15 Cortland Lane

Newbury, Massachusetts

Size

5,000 square feet

Challenges

  • Rotten roof decking
  • Steep rooflines with angles and eaves
  • Harsh New England climate with snow, ice, and temperature swings

Product Spotlight

Polystick® P HT

Polystick® P HT is a self-adhered, high-temperature waterproofing underlayment built for demanding roofing applications. Its Hi-Tread™ top surface combines slip resistance with UV durability using a polyolefin composite that holds up under direct sun exposure and heavy foot traffic during installation. The adhesive compound is elastomeric and high-temperature-rated, ensuring a secure, long-lasting bond even under intense radiant heat loads. Unlike traditional felt or SBS-carrier membranes, Polystick® P HT uses a carrierless construction that gives it exceptional flexibility, conforming cleanly to complex geometries without buckling or bridging.

It is compatible with asphalt shingles, metal panels, synthetic tiles, and other roof coverings, making it a versatile choice across roofing systems. Ideal applications include full-deck coverage, valley protection, dormer sidewalls, and flashing transitions where continuous waterproofing performance is critical.

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Precision and Performance: Self-Adhered Roofing Solutions at Valencia Reserve

Community Profile: Valencia Reserve

Valencia Reserve is an upscale active adult community in Boynton Beach, FL, featuring more than 1,000 homes and a full suite of resort-style amenities. At the heart of the community lies a vibrant clubhouse and surrounding facilities, including a pro shop and two staffed guardhouses that ensure security and a welcoming experience.

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When the time came to reroof these key buildings, the project posed two major challenges:

  • Ensuring continuous access to amenities during construction.
  • Addressing a complex fire suppression system suspended from the clubhouse roof structure.

RHI Roofing, a family-owned and operated company based in Oakland Park, Florida, brought its 17+ years of experience and professionalism to the project. Known for courteous service, strong warranties, and treating customers like family, RHI Roofing executed the project with precision and care.

Project Challenges & Polyglass Solutions

To address both the steep-slope and flat roof sections, RHI Roofing selected a suite of high-performance Polyglass products, designed to meet Florida’s demanding climate while ensuring minimal disruption to community life.

Steep-Slope Roof Sections

For the sloped roof of the clubhouse, RHI Roofing installed Polystick MTS PLUS and Polystick TU PLUS—self-adhered waterproofing underlayments engineered with advanced ADESO® dual-compound roofing technology.

  • Polystick® MTS PLUS: This high-temp waterproofing underlayment features a polymer-modified bitumen upper compound and a proprietary self-adhesive SBS compound on the bottom. It withstands temperatures up to 265°F and includes a textured, anti-skid top film that enhances traction during installation. Its durable design makes it ideal for high-temperature roof systems such as those with steel or copper panels.
  • Polystick® TU PLUS: Designed for use with adhesive foam or mechanically fastened roof tiles, this dual-reinforced underlayment combines a UV-resistant polymer-modified plastomeric upper layer with a self-adhesive SBS compound.
  • Polyanchor® HV: This nailable anchor sheet provides temporary protection for steep-slope roofs in high-wind areas.

Flat Roof Sections

For the flat roof areas, RHI Roofing applied Polyglass’s self-adhered roofing system, which included Elastoflex SA V PLUS and Polyflex SA P. To reinforce waterproofing at vulnerable transition points—such as corners, scuppers, and drains—they also utilized PolyFlash 1-C liquid flashing. This comprehensive system offered the following key benefits:

  • Elastoflex SA V PLUS: A self-adhering elastomeric base ply that delivers robust performance through its high-quality reinforced fiberglass mat and SBS-modified asphalt compound. This technology ensures excellent dimensional stability and protection against natural forces.
  • Polyflex® SA P: A self-adhered APP granulated cap sheet designed with ADESO® technology, offering outstanding flexibility, dimensional stability, and resistance to tears and punctures. Together, these materials provide a 20-year warranty, ensuring long-term performance.

Specialized Applications

  • PolyFlash 1-C: A versatile, moisture-cure flashing compound ideal for sealing walls, curbs, and unusual roof penetrations. Paired with PolyBrite Reinforcing Polyester, it delivers robust sealing and waterproofing capabilities.

Specialized Considerations

“The use of self-adhered technology significantly enhances consistency and reduces application risks compared to traditional 30/90 mop methods.”

— Tyler Eberly, RHI Roofing

By eliminating temperature-sensitive variables such as asphalt coverage and heat control, the Polyglass system improved reliability and speed of installation, while keeping high-traffic community buildings fully operational throughout the project.

By the Numbers

Location

9275 Lake Royal Road
Boynton Beach, Florida

Size

  • East guard house: 1,738 square feet
  • Pro Shop: 1,946 square feet
  • West guard house: 513 square feet
  • Clubhouse: 53,247 square feet (sloped), 2,309 square feet (flat)
  • Total: 60,383 square feet

Product Spotlight (Products Used)

Polystick® MTS PLUS

Polystick MTS Plus features advanced ADESO® dual-compound self-adhered technology, uniting a polymer-modified bitumen upper layer with a proprietary self-adhesive Styrene-Butadiene-Styrene (SBS) elastomeric compound on the underside. This innovative configuration ensures superior performance and ease of application.

Polystick® TU PLUS

Polystick® TU Plus by Polyglass® is a uniformly blended rubberized asphaltic waterproofing underlayment, specifically engineered for use beneath tile roofing systems. Reinforced with a fiberglass mat and a durable polyester fabric on the top surface, it offers superior strength and stability. The underside features a high-performance adhesive compound protected by a split release film, ensuring quick, easy, and secure installation.

Polyanchor® HV

Polyanchor HV was purposefully engineered and rigorously tested in a myriad of real-world conditions, incorporating valuable feedback from installers and code officials. As a nailable anchor sheet, it offers temporary waterproofing protection over approved steep-slope wood decks, serves as a reliable base sheet for Polystick tile underlayments suitable for concrete, clay, and slate roofing systems, and provides an effective water-resistant barrier under asphalt shingles and shakes on steep slopes. This comprehensive performance has redefined industry standards, ensuring exceptional durability in hurricane-prone regions and areas vulnerable to high-wind events.

Elastoflex SA V PLUS

Elastoflex SA V Plus is a high-performance, self-adhered elastomeric base ply for low-slope roofs, built with reinforced fiberglass for superior strength and dimensional stability. Featuring ADESO® dual-compound technology, it combines an SBS-modified asphalt top layer with an aggressive self-adhesive bottom layer and is finished with laylines and a split release film for ease of installation.

Polyflex® SA P

Polyflex SA P is a self-adhering APP (plastomeric) granulated cap sheet for use in low-slope roofing. Polyflex SA P is manufactured using Polyglass’ patented ADESO® Self-Adhered Dual-Compound Technology.

PolyFlash 1-C

A versatile, moisture-cure flashing compound ideal for sealing walls, curbs, and unusual roof penetrations. Paired with PolyBrite Reinforcing Polyester, it delivers robust sealing and waterproofing capabilities.

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Safeguarding a Mission: A New Roof for The Samaritan Center

Supporting a Critical Mission with a Dependable Roofing System

Since 1974, The Samaritan Center in Austin, Texas, has been a beacon of hope and healing, offering mental health counseling, group therapy, integrative medicine, and wellness education, particularly for the military community. To continue providing these essential services, the Center depends on a safe, secure, and welcoming facility, starting from the roof down.

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When the building’s aging 6,000-square-foot roof began to fail, it threatened not just the structure, but the vital services offered within. A timely, high-performance replacement was critical.

Technical Assessment and Challenges

Upon inspecting the roof, Wilson Roofing found that the existing system was based on a #30 felt underlayment, which had deteriorated over time, compromising the building’s protection against water intrusion and potential structural damage. The Samaritan Center needed a more modern solution that would meet the demands of its environment while providing long-lasting performance and durability.

Trusted Roofing Partner: Wilson Roofing

To take on the project, The Samaritan Center chose Wilson Roofing, a trusted, family-owned company serving Central Texas since 1976. With over 83,000 satisfied customers and recognition as a Contractor Connection Top Performer, Wilson Roofing was well-equipped to deliver a solution rooted in craftsmanship and reliability.

Project Challenge: Outdated and Failing Roofing System

A roof inspection revealed a deteriorated #30 felt underlayment, which no longer offered adequate protection against moisture or the Central Texas climate. The Samaritan Center needed a modern waterproofing solution compatible with a planned standing-seam, double-lock metal roof system—one that would ensure long-term structural integrity and energy efficiency.

The Polyglass Solution

After careful consultation with Polyglass USA, the team selected Polystick® MTS Plus, a self-adhered, high-temperature waterproofing underlayment specifically engineered for metal roofing systems. This product provided the perfect balance of durability, efficiency, and ease of installation.

Installation & Results

Wilson Roofing’s experienced crew installed Polystick MTS Plus beneath a new standing-seam, double-lock metal roofing system. Thanks to the underlayment’s 265°F temperature resistance, anti-skid surface, and ADESO® dual-compound self-adhered technology, the installation was completed with precision and speed, minimizing downtime for the Center’s operations.

The result:

  • A durable, watertight roofing system
  • Enhanced resistance to Texas heat and weather extremes
  • Improved safety and long-term peace of mind for staff and clients

The advanced materials and skilled workmanship on this project ensure that The Samaritan Center is protected for years to come, allowing them to stay focused on serving our community.

By the Numbers

Location

8956 Research Blvd., Bldg. 2

Austin, Texas

Size

6,000 square feet

Product Spotlight (Products Used)

Polystick MTS Plus Waterproofing Membrane

Polystick MTS Plus incorporates advanced ADESO® dual-compound self-adhered technology, setting a new standard for high-performance roofing underlayment. This innovative system combines a polymer-modified bitumen upper compound with a proprietary self-adhesive Styrene-Butadiene-Styrene (SBS) elastomeric compound on the bottom layer, providing exceptional durability and waterproofing capabilities. Designed to perform under the most demanding conditions, Polystick MTS Plus offers an ideal solution for high-temperature applications, particularly under metal roof coverings. Key features include:

  • Split-Release Film: Protects the self-adhesive compound and facilitates easy application, reducing installation time and ensuring uniform adhesion. This protective layer improves the efficiency of the installation process while ensuring secure and reliable adhesion.
  • Textured Anti-Skid Top Film Surface: Provides safe handling during installation, preventing slips and accidents on the roof. The textured surface allows for extended exposure to UV rays and environmental elements for up to 180 days, without compromising the product’s performance.
  • High-Temperature Resistance: Withstands temperatures up to 265°F, making it ideal for use under metal roof coverings such as steel, aluminum, or copper panels. This high resistance ensures the underlayment will not degrade or lose its effectiveness even in extreme heat.
  • Waterproofing Excellence: Delivers superior protection against water infiltration, especially in complex roof designs. The product ensures long-term waterproofing reliability, safeguarding the roof structure from moisture damage.
  • Exceptional Tensile Strength and Thermal Stability: Polystick MTS Plus maintains its integrity under various stress factors, offering durability that lasts through fluctuating temperatures and environmental conditions.

This combination of advanced materials and superior performance features makes Polystick MTS Plus the ideal choice for roofing systems in need of high-quality, long-lasting waterproofing and protection.

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Building Stability at McCulloh Homes: Roof Replacement with Polyglass Asphalt Products

Advanced Roofing Solutions for Enhanced Safety and Longevity

McCulloh Homes, a public housing community in Baltimore managed by the Housing Authority of Baltimore City (HABC), comprises low-rise apartments and townhomes offering affordable housing with access to transit, schools, and public services.

Years of roof leaks, cracking, and material deterioration had compromised both safety and structure, creating an urgent need for a durable, energy-efficient replacement.

The Roofing Contractor: Allstate Contractor Inc.

To take on the project, HABC selected Allstate Contractor Inc., a woman-owned roofing company established in 1997. With deep federal contracting experience and a strong portfolio of public and commercial work in the Washington Metro Area, Allstate Contractor Inc. brought the expertise and precision needed for a project of this scale.

“Allstate led the entire replacement effort, from tear-off to installation, using high-performance self-adhered Polyglass roofing materials.”

— Rony Santos, Project Manager, Allstate Contractor Inc.

Project Challenges

The existing two-layer torch-down and mopped roofing system had exceeded its service life. Persistent leaks, weather-induced cracking, and thermal instability made the roof vulnerable, especially under Baltimore’s harsh and changing weather conditions.

Key performance issues:

  • Poor temperature resilience
  • Structural degradation
  • Inefficient energy performance
  • Maintenance-intensive

The Polyglass Solution

The project team chose a self-adhered, multi-layer Polyglass asphalt modified bitumen system to meet the demands of durability, efficiency, and ease of application across 170,000 square feet.

System Benefits

  • Durability & Longevity: Engineered to last up to 30 years with enhanced tear and weather resistance.
  • Energy Efficiency: Polytherm insulation helps reduce heating/cooling costs.
  • Advanced Waterproofing: Superior water infiltration protection for a rain-prone region.
  • Faster Installation: Self-adhered technology reduces labor time and waste.

Execution & Results

Allstate efficiently removed the aging roof and installed the new system while adhering to Polyglass’ strict application best practices. The result: a high-performance roof that meets safety, environmental, and cost-efficiency goals, while improving long-term resiliency.

“Thanks to Polyglass asphalt roofing products, the McCulloh Homes roof replacement project looks better than it ever has. The results showcase attention to detail, precision, and hard work. I would consider using Polyglass again in the future.”

— Rony Santos, Project Manager, Allstate Contractor Inc.

Outcome and Impact

The McCulloh Homes roof replacement project was a resounding success. According to Rony Santos, the results exceeded expectations:

“Thanks to Polyglass roofing products, the McCulloh Homes roof replacement project looks better than it ever has. The results showcase attention to detail, precision, and hard work. I would consider using Polyglass again in the future.”

By the Numbers

Location

412 Oxford Court
Baltimore, Maryland

Size

170,000 square feet

Product Spotlight

PG 100

PG 100 is a versatile penetrating asphalt primer designed to enhance adhesion before applying hot-mopped, cold-applied, and self-adhesive membrane systems. It is also effective for use with roof cements, mastics, and asphalt-based adhesives.

PG 500

PG 500 is a premium cold-applied bonding agent specifically formulated for Styrene-Butadiene-Styrene (SBS) roofing systems and a range of other membrane applications. With its thick, “trowel-grade” consistency, it is ideal for flashing details, securing membranes to steep slopes and parapet walls, as well as performing various waterproofing repairs. Its superior flexibility and elasticity make it more effective than standard plastic cements, particularly in areas with moving joints.

Elastoflex SA P

Elastoflex SA P is a self-adhering granulated cap sheet engineered for low-slope roofing applications. It is produced using Polyglass’ patented ADESO® Dual-Compound Self-Adhered Technology, in which a true elastomeric modified asphalt compound is applied to the top of the membrane and a proprietary self-adhesive SBS compound is applied to the bottom. Reinforced with a durable non-woven polyester layer, Elastoflex SA P offers superior flexibility, dimensional stability, and exceptional resistance to tears and punctures.

Polyglass Ply IV

Polyglass Ply IV is produced using a heavyweight fiberglass mat that is bonded with heat-cured resinous binders. The durable glass mat is fully saturated with asphalt, providing exceptional strength, weather resistance, and a consistent porosity for ease of application. This product is typically used in hot-mopped roofing applications and serves as the base ply sheet for smooth and gravel-surfaced roofing systems that require ASTM D2178 Type VI felt.

Polytherm Polyisocyanurate Insulation

A highly energy efficient rigid insulation board composed of a closed-cell Polyisocyanurate foam core laminated to a fiber reinforced black non-asphaltic organic facer for superior bonding characteristics. Manufactured with a facer ideally suitable for many types of roofing products, including the direct application of ADESO® dual-compound self-adhered membranes under most project circumstances. Available in flat and tapered panels.

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