My only suggestion is before buying a product from a recommended manufacture, make sure it's appropriate for your type of roof. Some manufactures make multiple products under their roof coatings each designed for a particular type of roof. If you buy based on the brand name because it's labeled for RV roof repairs, you may be disappointed when it doesn't work properly on your roof material. Make sure you are matching product specs to roof material being repaired and not just cause a name was thrown around.