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.
Apply the gelcoat. 1  Use the filled spray gun to apply a fine layer of gelcoat to the desired area of the fiberglass. 2  Wait a few minutes to allow the coat to set. 3  Repeat spraying and waiting, applying a total of at least 5 layers of gelcoat to the fiberglass. 4  Spray a wider surface with each new layer of gelcoat.pply a polyester or better, vinyl ester primer/filler coat. 1  Use a foam roller to cover the fiberglass surface in 2 to 3 layers of resin. 2  Each layer should be very fine. 3  Spread each new layer of resin over a wider area of the fiberglass than you did with the previous layer. 4  Place a heat lamp near the treated area.