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                           Introduction to the BYRD Footer System
           Until 1999, the most common form of anchoring mobile homes was by a series of ‘anchor discs’ measuring six inches, drilled directly in the soil and spaced apart as follows:

            a.Wind Zone I 12’0” max.
            b.Wind Zone I roof pitch is 5/128’0” max.
            c.Wind Zone II 5’4” max.

           These ground anchors have to be capable of withstanding at least a 4.725 pound pull and installed as specified by the anchor manufacturer and in accordance with requirements of the Mobile Home Producers Installation Manual.  Unfortunately, due to the sandy soil conditions prevalent in Central and North Florida, this form of anchorage has proven in storm force winds, to be less than satisfactory with the result that damage to homes has ranged from total loss to severe.  The overall effect from this insecure system is the Insurance Industry having to pay for an increased claims frequency.  Mr. William Byrd, of Byrd’s Mobile Home Sales, recognized this as a major problem in both terms of safety and adverse marketing within the Mobile & Manufactured Home Industries.

            So, during 1999, Mr. Byrd developed a new and much safer anchorage system.  Briefly, three trenches are cut out of the ground.  The two outside trenches run the full length of the home which is to be installed on top and measure 24 inches wide and 12+1 inches deep.  The middle trench, also running the length of the home, measures between 60 inches and 84 inches wide 12+1 deep under the I-Beams and 7+1” deep at the center.  All in all, approximately 16 yards of concrete is then poured into these trenches (approximately 52,000 pounds or 26 tons).  After about 30 minutes, a series of J-hook anchors are placed 8 inches in the drying cement every 5 feet.

            The new anchorage system was field tested in August 1999on a 44 feet by 28 feet Skyline home located at Hastings, Florida under the supervision of ‘Product Testing Inc.’, an independent agency located in Jacksonville, Florida.  The full test results of the test are contained on Pages 7 through 21. (Please see an Acme Homes Associate for more information.)

            The test was carried out with Mr. C. Larry Hilton as a witness.  Mr. Hilton is a representative of the State of Florida, Department of Motor Vehicles, and Bureau of Mobile Homes, as required by Rule 15 C-1.

            Tests demonstrated that the footer system is satisfactory for use in Wind Zone III locations.  The test was based on loads equal to 32 PSF uplift with a simultaneous 47 PSF horizontal load, plus 50% overload producing the equivalent of 300 MPH storm force winds.  The average movement in the home from the lateral test was less than ¼ inch at 150% of design load and 3/16 inch at design load for longitudinal test again at 150% of design load.

            In simple terms, these tests demonstrated that the Byrd Footer System not only met the State of Florida’s criteria, but exceeded it by 50%!!!!

            Another telling feature of the system is a comparison with anchor discs as mentioned above which requires a minimal ‘ground pull’ of 4,725 pounds for anchors.  Tests regularly demonstrated minimal movement of the J-hook anchors at 7,838 pounds pull, some 66% in excess of the minimum requirement.  Tests continued to find the total pull needed to identify any weaknesses.  This proved to be a bolt within the tie downs which disintegrated at 10,950 pounds; 132% in excess of the minimum requirement.

            A simplified explanation of the installation procedures for the Byrd Footer System is contained on Page 2 (Please see an Acme Homes Associate for more information).  The system was approved by the Florida Department of Motor Vehicles Bureau of Mobile Homes on September 2, 1999 and accepted by Fleetwood Homes on November 2, 1999 and Skyline Homes on August 16, 1999.

            The Byrd Footer System clearly demonstrated a major advance in safety that will result in:
                        a.Considerably fewer total losses in severe wind storms;
                        b.Substantially fewer severe damage claims;
                        c.Substantially fewer subsidence claims (if any).

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