Commercial Construction

Solutions for your roofing applications


Energy-efficient, resilient building all the way to the top

The roof is a critical factor in the overall performance of your entire building envelope. Look to DuPont for proven thermal and moisture protection from the roof down, with solutions that deliver.  long-term high thermal R-value and superior moisture resistance. Plus, warranty protection from a name you can trust.

Whether your roof is a protected membrane roof or a conventional roof, we can help you design and build longer-lasting, more energy-efficient, and sustainable roof assemblies with high-performance Styrofoam™ Brand XPS insulation and compatible adhesives and sealants from DuPont. 

View the entire portfolio of roofing products and applications in our low-slope commercial roofing brochure.


Styrofoam™ Brand Plazamate™ XR Insulation

DuPont™ Styrofoam™ Brand Plazamate™ XR Foam Insulation is next generation in evolution of high-performance closed cell insulation that allows extra design flexibility for architects and engineers by optimizing roof thickness, reducing expensive commercial roof building alterations required for meeting the latest building and energy codes, and assists in reducing overall project costs. Styrofoam™ Brand Plazamate™ XR Foam Insulation is reusable, moisture-resistant, durable, easy to work with and offers more R per inch.


For samples, or to see how your project may benefit from incorporating Styrofoam™ Brand Plazamate™ XR Insulation into its design, contact Hydrotech at 800-877-6125 or

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Styrofoam™ Brand XPS Insulation vs. EPS

Styrofoam™ Brand XPS Insulation vs. EPS

Water can cause damage in freeze-thaw conditions. XPS insulation absorbs significantly less water than EPS products do. And, it maintains its R-value better when water is present. Styrofoam™ Brand XPS also has recycle/reuse ability. All of which improve performance, sustainability and life-cycle cost.

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Introducing the Duro-Life™ 600 Sustainable Roofing System

An innovative collaboration between Duro-Last® and DuPont™

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Green roof installation

Design for the future

Enable next-generation roofing solutions with science-based materials that deliver the performance needed for sustainable, durable construction.

  • High compression strength (up to 100 psi) for excellent durability and damage resistance
  • Superior moisture resistance; ideal for green and blue roofs
  • Consistent R-value performance over time and temperature range
Installation of DuPont™ Styrofoam™ on a building roof

Increase job site productivity

Simplify installation with durable insulation, sealing and adhesive solutions from DuPont Performance Building Solutions.

  • Lightweight products are easy to handle; one person can handle materials on their own safely
  • Quick and easy-to-install insulation and adhesives simplify installation
  • Easy to fabricate into various sizes and shapes to meet specific design needs
On Top With Next-Generation Styrofoam™ Brand XPS

Read about our very own re-roof project premiering low GWP Styrofoam™ Brand XPS Insulation for an improved sustainability profile

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Featured products

Styrofoam™ Brand Plazamate™ XR
Styrofoam™ Brand Roofmate™
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Styrofoam™ Brand Highload
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Styrofoam™ Brand Plazamate™
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Froth-Pak™ Foam Insulation – Two-Component Spray Foam
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DuPont™ Insta Stik™ Quik Set Commercial Roofing Adhesive
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DuPont™ Styrofoam™ Brand Deckmate Plus FA

Roofing applications

Protected membrane (PMR) roofs

In a protected membrane – or inverted – roof, the insulation is placed on top of the waterproofing membrane and covered with gravel, pavers or soil. PMR roofs are ideal for green and blue roof designs. They lengthen roof life, contribute to sustainability and provide long-term cost savings.

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Conventional roofs

In a conventional roof, the insulation lies under a protective membrane covering. Our conventional roof insulations and sealants provide long-term thermal performance and moisture resistance. Plus, the insulation often can be reused.

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Expert support

Warranty protection from a name you can trust

Warranty protection from a name you can trust

In the U.S., a 50-year thermal limited warranty is available from DuPont on Styrofoam™ Brand Insulation products 1.5 inches and greater.

Styrofoam™ Brand Deckmate™ Insulation products 1.5 inches and greater are eligible for a limited 50-year reuse warranty when used in conventional roofing applications. For thickness less than 1.5 inches, other warranties may apply.

Tapered roof assembly

Custom tapered design consultation service

DuPont™ Styrofoam™ Brand Tapered XPS Insulation products provide a positive slope to improve roof drainage. Send us your drawings, and we’ll provide a custom quote for your design.

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