insulated

Hi. All online I've seen that in order to drastically lower the volume of my fan I should use insulated ducting instead of regular. I just purchased the master flow 6x25 insulated duct from Home Depot and I'm lost. The ducting is way thicker than I expected it to be and the pink fiberglass...

im pulling from cold air and water is condensing on my ducting. i imagine once i add the light and get it all tented in if the fan is on high pushing cold air to the light water will also condense on my light fixture. anyone seen this or use insulated ducting. even if it was insulated duct it...