My old fan on the Oxygen
needed replacing, so I ordered a new MaxxFan Standard 4500K. I removed the old fan and started to install the new one, but realized the new fan is slightly smaller in overall dimensions. The flange on the new fan does not cover the holes where the screws were on the old fan. It will cover three sides, but i don't know what to do with the remaining uncovered holes on the fourth. Fill them with butyl or Dicor gap sealant? Some kind of strip to cover that row of screw holes? Maybe I'm being too OCD, but even though it's on the roof and won't be seen, I want it to look and be a professional type solution to the problem. Any ideas will be greatly appreciated!