Adhered Systems vs. Mechanically Attached Systems

For Long-Term Performance, Stick with Adhered Roofing Systems from Firestone.

Time and time again, the strong performance and proven longevity of adhered roofing systems have shown to be the best way to attach single-ply membrane (RubberGard™ EPDM and Ultraply™ TPO) to the roofing substrate-and the best investment you can make for your building.

Mechanically Attached Roofing System:In order to secure the single-ply membrane to the roof assembly, the membrane is attached with mechanical fasteners through both the insulation and decking material, typically at the seams.

Mechanically Attached Image

Adhered Roofing System:The single-ply membrane is attached to the topmost surface of the roofing assembly through the use of adhesives, without penetrating the membrane. This method secures the membrane across the entire roofing assembly.

Fully Adhered Image

Why Choose Adhered Systems vs. Mechanically Attached Systems?

1.

Acts as an Air Barrier

Mechanically Attached vs Adhered System

2.

Strong Performance and Longevity

Adhered roofing systems have proven to be the best investment for your building. That’s because they:

Offer symmetrical wind loading vs. point loading at seams

Contain no mechanical fastener plates which can be stressed under certain environmental conditions

Are easier to service in the event of a leak

Provide better wind uplift rating with fewer seams

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Prevent condensation which can lead to corrosion and rusting of deck and fastener

Do not require fasteners during installation and do not penetrate the membrane as a result

Often have more warranty options and lower cost of ownership (COO)

3.

Better Aesthetics

Beyond installation flexibility, adhered roofing systems lay flatter and are generally more visually pleasing, leading to higher resale value.

Smith Springs Image

Additional Resources

Adhered System vs. Mechanically Attached System Sell Sheet

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