Celebrating 60 Years of Proven Performance!

Monolithic Membrane 6125® is the industry's first hot fluid-applied rubberized asphalt membrane. Developed in the early 1960’s, it improved both the quality and durability of waterproofing systems. MM6125 quickly became the premier choice for commercial buildings throughout the world.

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Discover MM6125® innovations throughout our 60 years of proven performance

For 60 years, Monolithic Membrane 6125® has been protected not only buildings, but our clients’ investments, our natural resources, and the well-being of building occupants.

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MORE R-Value per inch - R6.7 vs R5

Lower thickness = higher design flexibility

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American Hydrotech receives Factory Mutual (FM) Approvals for Garden Roof® Assemblies

Hydrotech’s Garden Roof Assemblies have successfully passed a series of tests and met the rigorous requirements to achieve FM Approvals. Hydrotech is the only membrane manufacturer that can offer an FM Approval for a vegetated roof assembly, starting at the deck and up through the vegetation. 

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Garden Roof Planning Guide Request

With over 25 years of experience in all kinds of vegetated roofs, Hydrotech's 4th edition of the Garden Roof Planning Guide can take you from concept to completion in under 80 pages. 

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Protected Membrane Roof Planning Guide Request

The guide strives to educate architects, engineers, general contractors and other design professionals on the key benefits of a protected membrane roof compared to a conventional roof.

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Learn About the Benefits of a Protected Membrane Roof in Less Than 5 Minutes

Protected Membrane Roof (PMR) Planning Guide, representing more than 50 years of proven assembly experience across the globe and 35+ years of Hydrotech’s industry knowledge.

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Because if your roof membrane isn't protected neither is your building

Learn more about all the advantages of Hydrotech’s Protected Membrane Roof.

Learn how to Protect Your 'Brane ››


Hydrotech Monolithic Membrane 6125® (MM6125®) enjoys a 50-plus-year proven track record of superior long-term waterproofing protection. Leading architects, engineers and owners employ thick, tough, flexible, and self-healing MM6125 on horizontal and vertical structures including plazas, parking decks, planters, tunnels, bridges, mud slabs, foundation walls, and roof areas.
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Protected Membrane Roof (PMR)

With a Hydrotech Protected Membrane Roof (PMR), your roof membrane is protected for the life of your building. Hydrotech PMR assemblies employ the right materials, in the right order, to produce a highly energy-efficient roof that lasts more than three times the lifespan of an average unprotected membrane roof.
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Amenity Deck

What could your roof be? A restaurant, bar, or nightclub? An outdoor space for employee gatherings or simply a quiet spot to work outdoors or enjoy lunch? Hydrotech Amenity Deck(s) beautifully, safely, and effectively transform a roof into any of these exciting new possibilities.
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Garden Roof

North America’s leading pioneer and innovator in green roof technology, Hydrotech offers a full range of assemblies and systems to meet your specific garden roof vision and requirement. Whether a lush lawn roof or a roof filled with diverse plants, shrubs, and trees, Hydrotech has your solution.
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Resource Center

To assist in designing your project, please explore our resource center where you can access literature, details, specifications, product information, project photography and more.

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American Hydrotech, Inc. is committed to contributing to professional continuing education of architects by developing informative and relevant free continuing education courses that advance building science, sustainability, and qualify for AIA CES credit.

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One River North is Denver's most intriguing new high-rise building, with at notable canyon-like crack feature in the façade of the building. Stretching ten stories and spanning downwards from the roof, the unique look was designed to mimic Colorado's diverse topography.

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Situated on 9 acres, this multifamily and multi-building project offers a unique living experience within Bentonville’s developing Market District. This neighborhood approach promotes social interaction and community engagement by combining elements of both architecture and landscape architecture to bring the residents closer together.

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Block 250 - Houston, TX is a 29 story office tower in the heart of downtown Houston that has ten exterior garden terraces spread across six different levels, each completed with a Protected Membrane Roof Assembly. The amenity decks are outfitted with glacier white pavers with a ground finish and the residents now have several beautiful pedestrian decks and gardens overlooking downtown Houston.

Project Details ››

Located on the National Mall in Washington, DC, the Smithsonian Hirshhorn Art Museum (SI HMSG) remained operational during repairs to the envelope with a limited footprint for construction activity.

Project Details ››