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McElroy Metal Hydrashell Underlayment

Aug 27, 2019 - Bossier City, La.


HydraShell MAX is the standard synthetic underlayment from McElroy Metal and HydraShell Supreme SA is a peel-and-stick underlayment. HydraShell MAX has a four-layer construction and can be used under all types of finished roofing materials, including steel roofing and is suitable for roof pitches as low as ½:12. HydraShell MAX requires significantly fewer fasteners than competitive products and provides a durable deck cover. HydraShell Supreme SA is the best choice in high-temperature, self-adhering applications. The SBS modified asphalt provides excellent pliability and the cool gray surface reduces heat build-up.


About McElroy Metal
Since 1963, McElroy Metal has served the construction industry with quality products and excellent customer service. The family-owned components manufacturer is headquartered in Bossier City, La., and has 13 manufacturing facilities across the United States. Quality, service and performance have been the cornerstone of McElroy Metal’s business philosophy and have contributed to the success of the company through the years. As a preferred service provider, these values will continue to be at the forefront of McElroy Metal’s model along with a strong focus on the customer. More information can be found at

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McElroy Metal’s 138T shingle recover system is the industry's best solution to retrofit existing shingle roofs. This system installs directly over existing shingles with patented clips, creating an energy saving Above Sheathing Ventilation (ASV) airspace between the existing roof and the new 138T roof. Also being featured will be Green Span Profiles Ridgeline Insulated Metal Panel (IMP) which features a 238T seam. McElroy’s newest product is our Milan Steel Shingle. Milan provides the aesthetic appearance of shingles, slate or shake with all the benefits of metal.  McElroy operates 13 manufacturing facilities nationwide.

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