Environment & Energy

The less expensive ones are great. Have one on my garage now. Only problem with them is you must check the screws after a few years. Not hard to do, but a must. Those roofing screw have a softer compression gaskets to them. They can fail after a few years. Just have to check on them. Have to find a good local contractor to install. Those big ones that advertise all the time on the boob tube won't do it. Find a local that does lots of pole barns.
Let us know how you do.