How much snow on roof OK ?

Here in Illinois we haven't had a super snow fall for a few years buy we have a ADCO cover on MH and I put 7 clothes baskets upside down on roof before we put the cover on, that way there is a little air space between MH and cover, and a little pitch from the baskets which helps the snow slide off, on a sunny day the snow melts quickly and if there is a little wind the snow disappears in no time at all, we normally get on the road for Fla. in March so I watch it, the week before and if there is any snow I slide a push broom over it to get most snow off, the sun does the rest, it has worked for us the last 6 yrs I NEVER go on the roof with snow up there-
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