roof loads

[rob]

How do I find out what the recommended roof load is for my area - SW Missouri?

Thanks.

[Gary Zerbst]

You asked about how to determine what the required roof loads are in your area.

Please forgive my typing, I'm slow but I make up for it with my inaccuracy.

You might consider a phone call; to the building permit folks having jurisdiction in your area. You might also ask about local wind load requirements and seismic zone (seismic restraint) requirements while you have them on the phone.
Here in the mountainous Northwest where I live, I've found that the roof load (mostly snow load) can vary from 30PSF to 90PSF in areas that are only 15 miles apart depending on their snow load history. My new manufactured home will be sited in a 25PSF snow load area and 80 MPH exposure C wind zone. In one mountain area about 120 miles from my home, the snow load requirements were abruptly raised from 90 to 110 PSF after an unusually heavy snow event on top of previously accumulated snows collapsed many buildings in a particularly snowprone area. Thus you can see that roof loads are set by local building officials in response to sometimes highly localized weather history and experience. Contact your local building officials for local requirements

Manufactured homes are required to have a rating plate describing the roof and wind loads that were assumed for the structural design of the home. You should compare the loads determined from your local permitting friends with the ratings on the rating plate

[chase]

any manufacturers manual has that info, check with a dealer