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.