If Snow Falls Off My Roof And On My Deck And It Collapses Is It Covered? 
So , it is a bit scary that you are asking this question . Snow removal off a roof is some times an issue but on the deck itself you should be able to shovel it off . What concerns me is that perhaps your deck was a DIY project and you missed one key construction concept . The deck should not be a free standing structure and should be securely attached to the house . If you feel that it is not secure to the house , then that is a more serious issue you need address before friends and family take a risk of falling and injuring themselves severely . 