Mobile Home Roof Load Zones

Things get a bit more complicated for wind zones 2 and 3.

Mobile home roof load zones. Before beginning any work on your mobilehome manufactured home commercial modular special purpose commercial modular or multifamily manufactured home you must submit an application for a permit form hcd mh 415. Mobile home roof zones snow load ny north of the thruway middle zone 30 psf and all areas s of the thruway southern zone 20 psf check zone ratings on the home s data plate. The appropriate thermal zone value used in design is dependent on where the home will be initially installed. When a manufactured home is not designed to resist the wind loads for high wind areas zone ii or zone iii specified in paragraph c 1 ii of this section the manufactured home and each of its wind resisting parts and portions must be designed for horizontal wind loads of not less than 15 psf and a net uplift roof load of not less than 9 psf.

The hud code stipulates at 3280 506 that the home shall be designed and constructed to conform to one of three thermal load zones. Other states like colorado parts of michigan and parts of wisconsin have a higher snow load than other parts of the u s. For example states like alaska and maine have some of the highest snow load requirements. The net uplift roof load must not be reduced by the dead load of the roof structure for the purposes of engineering design or structural load testing.

If you re thinking about buying a prefab home keep in mind that a home built to wind zone 1 cannot be placed by the manufacturer in zones 2 or 3 but a home built to wind zone 3 standards can be placed in lower wind zones. Wind load heating load roof load mobile home manufactured home foundation codes defects. Roof load live load design is affected by the shape of the roof whether it is flat curved or pitched. 18 171 s e 2d 115 1969 upholding conviction for violation of an ahoskie ordinance limiting the location of mobile homes to mobile home parks.

Zone 3 homes are built to withstand higher speed winds than zones 2 and 1 and are primarily found along the coastline. Roof load zones vary depending on snow levels in different parts of the u s. Homes built for zone 1 should be able to resist horizontal wind loads of no less than 15 psf and upward roof lifting loads of no less than 9 psf. Roof loads are a downward vertical force on the home.

In 3280 305 c it goes into further detail of what the requirements are for each zone. Modifying a mobilehome or manufactured home. Alteration permit requirements and inspections. 45 197 s e 2d 883 1973 upholding an order to remove a mobile home from a zoning district that did not permit individual units outside a park.

However a south roof load zone home cannot be installed in either a middle or north roof load zone. This translates to about 70mph in basic wind speeds.