Get unmatched diaphragm shear strength out of your roof structure with Vulcraft's PunchLok® II System. Our sidelap connection system uses a specially designed pneumatic tool to create a high-quality crimp through cutting and shearing interference in the interlocking sidelaps of our roof deck profiles, enabling you to generate higher shear strength or reduce the connection or steel deck weight. It is particularly beneficial for applications requiring high lateral resistance, adding significant value to your project.

Experience faster installation with the PunchLok® II System, saving you time and money.

 
Image of the PunchLok crimping tools
Close view of the tool's crimping head
 

FEATURES

The PunchLok® II System’s secure fastening minimizes the risk of deck movement or failure, ultimately increasing safety. For use with Vulcraft’s 1.5”, 2”, and 3” interlocking deck types, the PunchLok® II tool is fast, effective, and provides excellent lateral diaphragm action.

ADVANTAGES

  • Dramatically increases the diaphragm shear strength of the deck versus using sidelap screws when comparing the same number of crimps with the same number of sidelap screws
  • No protruding screws poking through the bottom side of the deck
  • Cleaner underside facilitates easier integration of MEP systems
  • 100% accuracy of inspections of the attachment from the topside of deck

ADDITIONAL RESOURCES

DESIGN TOOLS

Save time by utilizing our Bare Deck Diaphragm tool to quickly calculate bare deck diaphragm shear and stiffness for your specific configuration. With inputs that include deck type, support connection, sidelap connection (including PunchLok® II), and wind uplift, this tool will help you accurately determine diaphragm capacity without the need for paper tables.

BARE DECK DIAPHRAGM DESIGN TOOL

Representation of Vulcraft design tools on a computer screen

PUNCHLOK® II RESOURCES