0 Susan M Cartersville, GA on Oct 17, 2011 Like Clip I have a 25 year old house with blown-in insulation in the attic. I am sure it needs to be "beefed up" but should I remove the old insulation, or can I just roll batts over it? Displaying 1 of 6 comments See All Comments Yamini LEED AP at Urbanmo... Duluth, GA For attic insulation blown in insulation is preferred and No, you do not have to remove the insulation unless it is damaged and has lost it's insulating properties due to dampness etc. NOTE: You can drag and drop your photos to reorder them Required Comment Saving...