How to Build For Wet Cold Climates
One primary feature that all home buyers/builders should consider in wet/cold climates is to ensure that your roof has at least a 1'-3' overhang. This will help keep the side of the house drier and thereby reduce the amount of weather damage and maintenance required. Another advantage of an overhang can be to incorporate a "high hip" in the attic area which will allow better use of insulation up to and above the wall caveties. High hip roofs can significantly reduce and/or eliminate ice dams that occur on roofs in cold climates. A final benefit (for summer)is that an overhang will create extra shade and reduce heat buildup inside the structure.