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โ˜… 5.0 Star Rated GAF Certified Owens Corning Preferred Contractor

Modified Bitumen Roofing in NYC

Multi-ply, asphalt-based modified bitumen roofing โ€” torch-applied or self-adhered, installed to manufacturer spec with a written warranty.

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โ˜… 5.0 Star Rated
โœ“ GAF Certified
โœ“ Owens Corning Preferred Contractor
โœ“ Licensed & Insured
Modified Bitumen

Modified Bitumen Roofing

Modified bitumen is a multi-ply, asphalt-based roofing system with decades of proven performance โ€” torch-applied or self-adhered layers built up for a durable, heavy-duty flat roof.

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Multi-Ply Durability

Multiple reinforced layers provide strong resistance to punctures and foot traffic.

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Torch-Applied Or Cold-Applied

Installed with heat-welded torch application or safer cold-adhesive methods depending on the building.

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Proven Track Record

One of the longest-standing flat roofing systems, with decades of real-world performance data.

Why Choose SwiftBuild

Why Choose SwiftBuild

The membrane is only as good as the installation underneath it.

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Installed To Spec

Correct layer sequencing and application method for the building and code requirements.

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25+ Years of Experience

Decades of flat roofing work across Queens, Brooklyn, and Nassau County.

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Written Warranties

Every job comes with a written workmanship warranty.

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Photos Through Every Stage

Documentation from tear-off through final layer.

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Transparent Pricing

A clear, itemized estimate before work starts.

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Licensed & Insured

Fully licensed and insured for flat roofing work.

Our Process

How Modified Bitumen Installation Works

1

Remove Old Roof

Full tear-off down to the decking.

2

Inspect & Repair Decking

Damaged decking sections are replaced before installation begins.

3

Install Base Sheet

A base ply is installed as the foundation layer.

4

Install Cap Sheet

The reinforced cap sheet is torch-applied or self-adhered over the base layer.

5

Seal Seams & Flashing

Seams are heat-sealed and flashing is installed at all edges and penetrations.

6

Final Walkthrough

The finished roof is inspected for proper seam bonding and drainage.

Modified Bitumen Roofing FAQ

Common Questions

Yes โ€” we take standard fire-safety precautions for torch-applied work, and self-adhered systems are available as a torch-free alternative.
Modified bitumen is a multi-ply, heavier-duty system with a very long track record, while EPDM and TPO are single-ply membranes that are often faster to install. We'll help you weigh the options for your building.
Yes, every estimate is free with no obligation. Call (516) 549-7665.

Get A Free Modified Bitumen Roofing Estimate

Serving Queens, Brooklyn & Nassau County.

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