I haven't been to the top of my garage to figure out how big these gaps are. But, what is the limit on gaps in the decking above a garage. Looking to get a new roof put in, some people have given me quotes saying this should be covered with osb board because the gaps are too large, others have said it isn't a big deal. What is the limit? Located in Minnesota. submitted by /u/Every_Television_290 [link] [comments]