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Table of Contents

  1. Is the Hurri-Bolt Uplift System approved ... ?
  2. Does...galvanized or otherwise coated ?
  3. What is the minimum space for a rod...?
  4. What is the Tensioning Procedure ... ?
  5. What Type of Masonry Bit...?
  6. Can...use rods...instead of post caps?
  7. What if a rod will not fit...?

1. Is the Hurri-Bolt Uplift System approved by the Florida Building Code?

        Yes. The followings Florida Building Code Product Approval Numbers were granted for the Hurri-Bolt Uplift System:

        2001 FL 1730

        2004 FL 6130

        2004 FL 6352

        These can be verified on State of Florida website: www.floridabuilding.org (Be sure to search 2001 for 1730, and 2004 for 6130, and 6352.)

         Also, we have downloaded several of their documents for your convenience here: Product Testing and Approvals

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2. Does the Hurri-Bolt Uplift System need to be galvanized or otherwise coated?

No, in most cases, since the components are not exposed directly to the weather. However, if the connectors are subject to salt corrosion, we can provide a code approved coating. Be prepared, if you are required to have the Hurri-Bolt components coated, you will have to order any other fasteners including hurricane clips, nails, and screws with either a hot dipped galvanized (ASTM 153) or mechanically galvanized (ASTM B 695) coating or use stainless steel components and fasteners. The standard clips and straps are "electro-galvanized" and do not meet the corrosion resistance specifications.
Excerpt from letter dated July 19, 2000 regarding the coating of Hurri-Bolt components from Michael O'Reardon, P.E.,Assistant Vice President, Evaluation Services, SBCCI:

"Under the 1999 Standard Building Code© steel anchor bolts and rods used to anchor wood stud walls are not required to be galvanized or corrosion resistant, section 2306 and 2307 SBC.

Under the SBCCI Standard for Hurricane Resistant Residential Construction© SSTD 10-97 and 99, corrosion resistance is required for steel anchors exposed directly to the weather or subject to salt corrosion in coastal areas, as determined by the local building official, section 302.1.3 SSTD 10. The corrosion requirement for coastal areas is covered in the anchor rod evaluation reports by a limitation, see your SBCCI PST & ESI Evaluation Report #9910, limitation 9.7."

A brief synopsis of coatings:

There are only two specifications for coatings that are accepted by SBCCI for exposure directly to the weather or subject to salt corrosion. They are mechanical galvanizing (ASTM 695) and hot dipped galvanizing (ASTM 153).

Zinc coating, yellow chromate or clear (ASTM B633), on fasteners or rods does not meet the above specifications, neither does zinc coating on sheet metal products, hurricane clips or straps (ASTM G60). If you need corrosion resistance for direct exposure to weather or salt spray, you have two options. The first option is to specify one of the acceptable corrosion resistant coatings—ASTM 695 or ASTM 153. The second is to specify a stainless steel material such as 316 stainless steel.

 

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3. What is the minimum space between studs for a rod assembly?

    The 3/8", 5/8", and 3/4" Hurri-Bolt rod assemblies will each easily fit within the width of a single stud. When drilling the slab, and setting the Hurri-Wedge or Epoxy anchor, you will temporarily need to fit a drill motor into the wall space. However, after setting the HW or HBE, additional studs may be placed inside the wall space. (The 1/2" Hurri-Wedge needs to have room to fit a 2"x2" Sill Plate Washer.)

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4. What is the Tensioning Procedure for the Hurri-Bolt System?

    From the Hurri-Bolt Installation sheet: (link) "…before the ceiling gypsum is installed and after the roofing material and drywall is loaded into the building, the top HBN should be retightened to account for settling and to preload the building using standard force with a hand wrench. Do not over-tighten the top nut deflecting the top plates or crushing the wood under top plate washer. A properly tightened rod will feel taught."

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5. What type of Masonry Bit is needed for the Hurri-Bolt System?

    A Standard ANSI Masonry Bit is used for the Hurri-Bolt System.

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6. Can we use rods on porch columns instead of post caps and bases?

    Usually yes, depending on how the columns are framed. There must be a clear rod path to the slab, and the top plate washer must be able to fully engage the top plate or beam. (See detail.)

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7. What if a rod will not fit because of an obstruction, offset, or lack of a clear rod path?

This area will usually need to be conventionally strapped as called out in the Structural Drawings. It is generally called out with diagonal hatching on the Hurri-Bolt layouts. If more elaborate strapping is required, Hurri-Bolt's Engineering Department may need to design a separate strapping detail.

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J. Hale
Copyright © 2008  [Hurri-Bolt, Inc.]. All rights reserved.
Revised: 01/11/09.