Phillips Head Roofing Screws and Mechanical Fasteners for Single-Ply Membranes

Description

Phillips Head Roofing Membane Fastening Screw for PVC Tpo Roofing Sheet

Feature  & Key Points

Primary Function To securely fasten TPO, PVC, and EPDM waterproofing sheets to the roof substrate, ensuring long-term wind uplift resistance and a watertight seal.

Key Characteristics • Corrosion-Resistant Coating: Screws are often coated with anti-corrosion layers to prevent rust and ensure service life. Some screws for concrete substrates are made from stainless steel due to high moisture content and lower thermal conductivity .Applicable Roof Decks Suitable for metal, concrete, lightweight concrete, and wooden roof structures .

System Advantages & Installation Notes

· Enhanced Wind Uplift Resistance: The combination of high-strength screws and large, often welded, retention plates creates a robust system capable of withstanding significant wind forces. This is backed by rigorous testing standards like ETAG 006 .

· Superior Long-Term Weathering: The use of corrosion-resistant screws and EPDM washers with excellent ozone and weather resistance  ensures the integrity of the fastener points over the lifespan of the roof.

· Material Compatibility: The availability of retention plates coated with specific polymers (PVC, TPO, EPDM) allows for seamless, strong welding to the corresponding membrane type, creating a unified, reliable roof assembly .

· Versatility: This fastening system is designed for a wide range of roof decks and insulation types, making it a flexible solution for various projects .

For installation, it is crucial to follow the manufacturer's guidelines regarding screw spacing (which should be determined via wind load calculations), proper torque to engage the washer without damaging it, and the correct use of heat-welding equipment for coated plates.

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