Re: How did you guys install your roof vents ?
Mr. Jkindd has got it going on. thats the way I put mine in, but I used a half inch drive drill using one inch hole saw in the corners drilling through both layers then used a sawsall with a long enough blade to cut the inner and outer at the same time. Then I finished the hole with 1x2 pine boards between the inner and outer metal, Did it all from the outside didnt have to deal with metal chips falling in my face or a grinder setting the insulation on fire. Oh yea dont do this without proper eye protection safety always.