We are planning to finally insulate the walls and attic space in our 46 year old 3 level house. We plan to blow insulation into the walls from the exterior. For the attic space, we have 2 different recommendations and don't know which makes the most sense. We live in New England and have had problems with ice dams in the past.

One is to install sofit vents (we currently do not have any) all along the roof line and then stuff with insulation. The quote for this is about twice the cost as the second option which is to just insulate the walls and stuff the attic spaces along the roof with high level insulation. The second vendor relates that this is how all new construction is being done.

Any advice??

thanks from wildwoodhome