Roofing Fasteners

Fasteners at the gutter edge of a metal panel roof.

Fasteners with fastener plates securing polyiso insulation. (Yes, that is the FM-approved fastener pattern. It's a 40-story building.)

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More Pictures:

1. Damage to a Fully-Adhered EPDM Roof Caused by Fastener Back-Out

Useful Links:

1. General: Steel Deck: "Fastening Steel Deck" is a decent short article from 2015 available on the Structure Magazine website.

2. General: Corrosion: Excellent article: "Fighting Fastener Corrosion" at the Professional Deck Builder website.

3. Chemical Compatibility: "Corrosion and Corrosion Resistance" is a useful and easy-to-follow technical bulletin provided by the Fastenal Company. Explains what material fasteners should be made out of in order to be used with which other materials. 

4. Chemical Compatibility: Also see "Dissimilar Metal Corrosion" by D. Matthew Stuart, a four-page presentation found on the website of PDH Online.

5. Chemical Compatability: For a much longer and more technical read on the subject, see "MIL-STD-889C - Department of Defense, Standard Practice, Dissimilar Metals". 

6. Technical: "American National Standard - Standard Field Test Procedure for Determining the Withdrawal Resistance of Roofing Fasteners" is made available on the SPRI website.

7. Technical: "Guide for Materials Selection and Design for Metals Used in Contact with Copper-Treated Wood" - the title is self-explanatory, the article is from 2013, and is made available by the US Department of Agriculture's Forest Service's Forest Products Laboratory

8. Technical: Heat Transfer: "Roofing Fasteners and How They Affect Insulation Thermal Performance" is a good, easy-to-follow article over on the GAF website.

9. Technical: Heat Transfer: "Three-Dimensional Heat Transfer Analysis of Metal Fasteners in Roofing Assemblies" is another good article on the subject, but much more technical. Available on the Buildings - Open Access Journal site.

10. ManufacturersSee here for a list of roofing fastener manufacturers.