1. To do this we first put a hole in the roof. Then check from the inside to fit it between roof rafters.
2. We cut a hole using the manufacturer's template. I believe this fan has a 10 inch hole.
3. We mount the fan over the hole and seal. This roof is an older roof and the shingles were brittle so we did not disturb them too much. On a newer roof we can normally hide most of the flange under the shingles.
4. Then from under the roof we found power in the attic and hooked up the thermostat. Now all the summer heat will be sucked out of the attic with this fan. It will be much easier to keel this house cool this summer.