I would like to add my two cents worth on the attic removal question. I also have used a Bee Vac to remove bees from situations like this, and if I were facing an attic removal as has been described, I would definitely use my Bee Vac. I found the information along with photographs and explanation (to where even I could figure out how to do it) in Barry Birkey's web site: www.beesource.com under 'plans' and adapted it to the materials I had available to me. It works exceptionally well and I have never had a problem personally with bees being killed by it. If I am not mistaken, Matthew Westall from Castle Rock, Colorado, provided the plans and graphics to Barry. While I was working on mine, I sent several emails to Matthew about how to make the Bee Vac and how it works and he was very helpful. It has become an integral part of my beekeeping equipment for use in removals. I have even lended it to another beekeeper to use (since he didn't have one) and now he wants to make one for himself since he has used mine. Good luck with your project. Layne Westover, College Station, Texas