Cool Attic CX1000AMUPS Power Attic Roof Mount Ventilator with 3.4 Amp 60 Hz Motor and Steel Flange, Galvanized Steel Dome (4-(Pack))

First off, it's very well made. The construction seems quite solid. The flashing came a little bent, but I was able to bend it back with some channel locks. Installation was fairly straight forward. There are videos on YouTube on how to do this. I also suggest you do a little research on how a shingled roof works. It's very quiet and I've noticed a huge difference in how hot my attic is. Before installation, it was like a sauna up there. Easily above 100 degrees on a hot day. This fan has reduce the temperature by at least 20 degrees. I plan to install a second one down the road.

Received the product on time and the packaging was intact. After opening the package everything seemed fine, no dings and nothing bent. On closer inspection notices that one of the four fan blades scraped on the top of the housing. Since the box and product had no indications of damage from shipping looks like the defect is straight from the factory or the build quality is so poor that the jostling from shipping cause the fan blade to mis-align.Could have fixed it but even if I spent hours figuring out where the misalignment is, figured it wasn't worth it. Even a small imbalance would cause the bearings and the motor to fail over time and any tampering would void the warranty. Depending upon the motor's rpm, would probably cause all types of problems on the roof over time, least of all the racket it would make. Just not worth it to go up on the roof, cut a huge hole, and install knowing that I will probably have to go up there within a year and replace with another unit.

I put 2 of these on my roof which is overkill,but I had 2 holes to cover!!! " ).....reduced the attic temp by 30 degrees! LOVE it!....very quiet and cheap to operate!

Have had this fan for over six months it was very easy to hook up and it's very quiet

This is one huge vent. Much bigger than the last one I installed. I am reviewing now because I want state that this unit has a thermostatincluded. I have to enlarge the current vent hole in the roof otherwise it would be installed by now. I will report back after it is up and runningfor a while.

Looked like a well built product and was fairly easy to install, problem was after only a few months the motor quit working and it never seemed to drop the temperature in the attic even though it's under the 1600 sq foot it is recommended for.

A little over a month after i installed it, the fan began to squeak like the bearings are going out already. Return policy is 30 days. They offered to give a partial refund if i return the fan which is attached to my roof.

Works good, but doesn’t last very long