The attic will hit R80. Brazelton is doing much of the traditional renovation work himself, with the help of his father and a few friends. He sleeps inside the unheated, unfinished house on a cot, sometimes with the family's two dogs for companions. The more complicated work is being handled by a professional builder, Ryan Stegora.
Go with an aluminum patch. Use aluminum rivits or screws. Avoid stainless or other metal screws due to the interaction of different metals. Use a sealant like 3m 5200 or Boatlife. Do not use fiberglass to patch aluminum. It just doesn't hold up well.
1 Ratio of resin to hardener is as follows: For 1 ounce of resin, add 10 drops of hardener or 6 tablespoons of resin with Â¼ teaspoon of hardener. Make small batches at a time and mix more as needed.  Brush a coat of mixed resin on the damaged area extending 2-3 inches beyond repair. Place the first layer of Fiberglass Cloth onto mixed resin. Use paint brush to saturate the cloth with mixed resin. A dabbing motion will help saturate the cloth and remove any air pockets.