I called and talked to Customer Service before putting in my order. My area was approximately 9.9 X 6.5, it was recommended for me to order Two (2) Gallons. However, with the Air Condition, Air vents and Skylight, the square footage changed and the second gallon, untouched.
So, do I now have an extra patch gallon or can I return for over order?
This is not a complaint. Customer Service was great (Does Georgia/New England accent qualify as Foreigner?). I had a last minute change to my order that was quickly resolved. Delivery was much sooner than expected.