COMMERCIAL SERVICES

Modified Bitumen Roofing

SBS and APP modified bitumen roofing for durable, multi-layer protection on compatible flat and low-slope buildings.
Flat roofing project image 08 for Hammond Roofing.

EXPERIENCED, STRAIGHTFORWARD SERVICE

Asphalt-Based Protection Engineered for Low Slopes

Modified bitumen combines asphalt with polymer modifiers and reinforcement to create roll roofing membranes for low-slope applications. Systems may use SBS or APP membranes and can be installed in multiple plies, giving the assembly redundant layers of protection.

Hammond Roofing helps owners understand membrane type, attachment method, surfacing, flashing, drainage, and maintenance. We are family-owned and operated, properly licensed and insured, with more than 30 years of roofing experience.

WHY HAMMOND ROOFING

Where Modified Bitumen Can Make Sense

This established roofing category offers several installation and surfacing choices for compatible commercial and residential low-slope roofs.

Multi-Ply Redundancy

Layered assemblies can provide more than one line of waterproofing protection.

Tough Reinforcement

Reinforced membranes are designed to resist tearing and puncture in demanding roof environments.

Detailing Flexibility

Asphaltic membranes can be shaped and reinforced around many common penetrations and transitions.

Several Application Methods

Depending on product and conditions, systems may be torch-applied, cold-applied, self-adhered, or mechanically attached.

Surfacing Options

Mineral-surfaced and reflective configurations can be selected according to specification and project goals.

Modified Bitumen System Choices

Modified Bitumen System Choices

Every application method has safety, substrate, weather, and manufacturer requirements. The specification must match the property.
Professional torch-down flat roof installation by Hammond Roofing.

SBS-Modified Membranes

SBS membranes are formulated for flexibility and are available in several installation configurations.

Flat roofing project image 08 for Hammond Roofing.

APP-Modified Membranes

APP membranes are asphaltic sheets commonly heat-welded where conditions and safety requirements permit.

Flat roofing project image 02 for Hammond Roofing.

Base and Cap Sheets

Multi-ply systems combine compatible base, interply, and cap components according to the specification.

Flat roofing project image 09 for Hammond Roofing.

Self-Adhered Options

Selected products use factory-applied adhesive and may reduce the need for hot asphalt or open-flame application.

Flat roofing project image 05 for Hammond Roofing.

Flashing Components

Walls, curbs, drains, pipes, and edges require compatible reinforced details.

Flat roofing project image 01 for Hammond Roofing.

Reflective Surfacing

Eligible cap sheets or coatings may help reduce solar heat gain and meet project-specific requirements.

Selecting the Right Modified Bitumen Roofing Scope

SBS and APP products have different application characteristics, and not every installation method belongs on every building. We match the proposed membrane and application to the substrate, occupied space, access, safety requirements, and drainage.

EXPERIENCED, STRAIGHTFORWARD SERVICE

The Installation Method Matters

Modified bitumen is not one generic product. Hammond Roofing evaluates occupied space, fire safety, ventilation, substrate, access, weather, drainage, and manufacturer instructions before selecting an application method.

Hammond Roofing vehicles serving a roof repair customer.

WHY HAMMOND ROOFING

Why Property Owners Choose Hammond Roofing

Experienced recommendations, clear communication, and responsible workmanship for modified bitumen roofing from a local family-owned company.

Low-Slope Roofing Experience

We understand the preparation and detail work that asphaltic membrane systems require.

Family-Owned Since 1994

Our company brings long-term local accountability to commercial and residential projects.

Properly Licensed and Insured

Hammond Roofing maintains appropriate licensing and insurance for our work.

Safety-Conscious Planning

Application methods are selected with building conditions and product requirements in mind.

Practical System Comparisons

We can explain how modified bitumen compares with single-ply alternatives for the property.

A CLEAR, ORGANIZED APPROACH

Our Modified Bitumen Roofing Process
From the first conversation through final review, Hammond Roofing keeps modified bitumen roofing work clearly scoped, carefully documented, and easy to understand.

Free Consultation

We start by listening to your goals, answering your questions, and scheduling a convenient on-site evaluation of your roofing or exterior project.

Detailed Inspection

Our experienced team thoroughly evaluates your roof or exterior system to identify existing issues, recommend the right solution, and explain every available option.

Honest Proposal

You'll receive a detailed estimate outlining the recommended work, materials, project timeline, and pricing—so you know exactly what to expect before work begins.

Professional Installation

Our skilled crews complete every project using premium materials, manufacturer-approved installation methods, and quality craftsmanship built to last. As a 2026 GAF Master Elite® Contractor, Hammond Roofing can offer enhanced GAF warranty options on qualifying GAF roofing systems.

Final Inspection

Every completed project is carefully inspected to ensure it meets our quality standards and your complete satisfaction before we consider the job finished.

Ongoing Support

We're here long after installation is complete. Whether you have questions, need maintenance, or require future roofing services, Hammond Roofing is only a phone call away.

Areas We Serve

Proudly Serving New Jersey, Jersey Shore, & Eastern Pennsylvania

map-hammond-roofing-service-areas

Frequently Asked Questions

What is modified bitumen roofing?
It is an asphalt-based low-slope roofing membrane enhanced with polymer modifiers and reinforcement. Systems may use one or multiple compatible plies depending on the specification.
SBS and APP use different polymer modifiers and have different handling and application characteristics. The appropriate system depends on project conditions, product requirements, and installation method.
Not always. Product options include torch-applied, hot-asphalt, cold-applied, self-adhered, and mechanically attached configurations. Not every method is appropriate for every building.
Localized repairs are often possible when the existing membrane is identifiable, compatible, and sufficiently serviceable. Moisture and widespread deterioration can change the recommendation.
No. It is also used on compatible low-slope residential areas such as additions, porches, and garages, depending on the roof design.

Compare Modified Bitumen Options for Your Building

Request a low-slope roof assessment from Hammond Roofing and receive a clear explanation of compatible materials and installation methods.