Mine is a skillion, or flat, and it made it hard to insulate. I know that much. And silly me insulated well before the insulation rebate plus I listened to a builder who said foil wasn't needed and now it's warmer in Winter and freakishly hot in Summer. So much so, I vented each room with a whirlybird but because the roof is flat, and the insulation filled the space, I needed 6 (six!) whirlybirds to pull the air out, one above each vent. You can now see the whirlybirds from space.
Originally Posted by gardenlen
Keep Planting. Never Stop. Always Improve on What You Have Got.