something i don't need to worry about being in Florida any more . but this was something we did worry about when I lived in Michigan . we get some heavy snows and I had seen some major roof/ building problems. arise after bad winters from snow and Ice build ups . some years we made big money clearing roofs of snow after storms . also with service calls in the spring from damages it caused. thought I'd post this chart for you in the snow belts .
(what you need to really look at is the last line item. its added weight from the snow it self. )