Harris, Reed & Seiferth
When strong winds blow, manufactured homes need special protection. No matter where you live, you need tie-downs and anchors to keep your manufactured home stable and secure. Before you start the job, you should understand why this wind protection system is necessary, and know the basic requirements for tie-downs and anchors. You also need to become familiar with all the components that make up your anchoring system. It's a good idea to consult with an experienced professional installer or building inspector if you have any questions or doubts about the installation.
Why Mobile Home Tie-Downs?
Manufactured homes must have anchors and tie-downs to keep them in place during high winds. Compared to site-built homes, manufactured homes are relatively lightweight. They have flat sides and ends, and they are built on frames rather than foundations. Almost all manufactured homes are elevated, situated on top of some sort of pier or foundation system. Wind can get under the homes and lift them up. In addition, the wind passing over the top of your manufactured home can create an uplift force.
To resist wind forces, you need two different types of tie-downs. In older homes, a vertical or over-the-top tie-down is needed to compensate for the uplift force. A diagonal or frame tie-down is needed to compensate for both lateral and uplift forces. Singlewide manufactured homes need both types of tie-downs. Doublewide homes only need the diagonal ties.
Tie Down Requirements For Manufactured Homes
• Singlewide manufactured homes require both diagonal and vertical ties.
• Doublewide manufactured homes require only diagonal ties.
Length of manufactured home (ft)Number of Vertical Ties per SideNumber of Diagonal Ties per SideNumber of Vertical Ties per SideNumber of Diagonal Ties per Side
• To determine the length, do not include the draw bar.
• Numbers based on minimum working load per anchor of 3,150 pounds, with a 50% overload of 4,725 pounds.
• Diagonal ties must deviate at least 40 degrees from a vertical direction.
• If your home has special site considerations, a registered professional engineer or architect can devise an alternate anchoring system.
Anchoring System Components
Installing a tie-down and anchoring system is not too complicated for most do-it-yourselfers. It's wise, however, to seek experienced help to make sure you are using the proper anchor for your soil conditions, enough anchors for your wind conditions, the correct tension on your tie-down, and proper angle for your frame tie-downs. At the very least you should have a building inspector or a trained installer check over your finished work.
To make sure you're tied down safely, consult your local building inspector.
Looking for Mobile Home insurance?
In addition to following the proper steps to tie-down and anchor your mobile home, make sure you have a good mobile home insurance policy in case the unexpected happens.
Source: Foremost Insurance - Mobile Home Repair - How to Install Tie Downs And Anchors
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