Alabama Administrative Code
Title 535 - ALABAMA MANUFACTURED HOUSING COMMISSION
Chapter 535-X-13 - REGULATIONS FOR THE INSTALLATION OF MANUFACTURED HOMES AND MANUFACTURED BUILDINGS AND THE MANUFACTURE OF GROUND ANCHORS AND TIEDOWN DEVICES
Section 535-X-13-.08 - Installation Of Anchors And Tiedown Devices

(1) Anchor must be approved for its intended use.

(2) Anchor must be installed in the soil class in which it was tested and approved.

(3) Anchor must be installed to full depth with the bottom of the anchor head within one (1) inch of the soil's surface.

(4) No more than one tiedown shall be attached to any one anchor unless the anchor is approved and capable of resisting the combined loads placed upon that anchor.

(5) All anchors shall be installed in a vertical position or with the anchor rod in direct alignment with the force of the loading.

(6) All anchors installed in a vertical position for a diagonal pull shall have a stabilizer plate, concrete collar, or other approved stabilizer device installed to resist horizontal movement. The stabilizer plate must be installed in a vertical position to the full depth of the plate with the plate head flush with the soil's surface. If concrete collar is used, it must be 10" in diameter by 18" deep.

(7) All tiedown straps and devices must be attached to the manufactured home or building in accordance with the manufacturer's instructions for such straps and devices. All tiedown straps and devices must be tested and approved. Straps must be type 1, finished B, grade 1 steel strapping, 1 1/4" wide and 0.035" thick conforming with Federal Specification strapping steel and seals FS QQ-S-781H-1974.

(8) Straps shall not be kinked or bent or otherwise abnormally stressed when installed.

(9) A metal roof protector must be used with over the roof tiedowns.

(10) Rock anchors can only be used in solid rock.

Author: Jim Sloan