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Guardian 00645 CB-12 Roof Anchor for Wood, Steel, or Concrete


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Can Be Used As a Temporary or Permanent Anchor

  • Universal base plate
  • 12″ post 16″x16″ base
  • Durable galvanized finish
  • Fasteners provided for wood & steel
  • For use on wood, steel (minimum 20 ga.), or concrete
  • Post extends past roofing substrate to keep attachment point high enough that it is still accessible after the roof is complete
  • Round post works with most off-the-shelf flashing kits
  • Great for use with retractable or horizontal lifeline systems
  • FAQ

    Q. What if I don’t meet the decking/substrate requirements of a ¾” CDX plywood or 20 ga. metal?

    A. There are a variety of different methods. You can use 2×4 bracing for wood applications or you can lay a 4×4 sheet of wood or decking down over the top of the area where anchor points are going to be installed.

    Q. Why?

    A. Anything less than the above substrates will not hold 5,000 lbs. which is the requirement for attachment areas. By using 2×4 bracing or another sheet of material, screwed securely into the framing members (truss or purlins), you are, in essence, making that section of decking capable of meeting the 5,000 lb. requirement.

    Q. What is the proper spacing if I want to run the 4 worker horizontal line system?

    A. CB: 12’s thru 18’s: 20ft. on center SKYHOOKS: 16ft. on center

    Q. How many workers does the horizontal cable system hold?

    A. 4 in. FALL RESTRAINT per continuous run of cable; 1 in FALL ARREST per continuous run of cable

    Q. How do I attach the cable system to the anchors? Do I attach to each one?

    A. Terminate the cable on one end by running approx. 2 feet through the anchor and clamping it back to the remaining cable with at least 3 cable clamps. For Skyhooks, run the cable through the large hole, then through the small hole, and back through the large hole.
    * Run the end of the cable line through each intermediate anchor (for Skyhook, run only through the large diameter hole)
    * Do not stretch the cable tight! Allow 6 to 8″ extra line per 20ft. to allow for slack
    * When selling the line, also add the 2 feet and the slack
    * The slack absorbs some of the impact in a fall

    Q. Can I install a CB-1-B on a flat roof?

    A. No. Because it is a flat anchor with no upright it cannot be installed in any waterproof manner. It is intended for vertical structures.

    Q. Can I install a CB-1-W for a permanent application?

    A. ONLY if it is installed as recommended and then given some sort of weatherproofing finish. The current unit does not have any weather protection and will rust when exposed.

    Additional information


    Add screws for concrete deck, Add screws for metal deck, Add screws for wood, No screws