0 Brian Kissimmee, FL on Apr 14, 2011 Like Clip How effective is reflective foil attic insulation and is a DIY project? 1 Comment Hudson Designs Loganville, GA It's a good DIY project, but 1st be sure all insulation is in place well. If some of the truss insulation slips you may want to staple the over head insulation 1st, then apply this layer of foil. NOTE: You can drag and drop your photos to reorder them Required Comment Saving...