Hey guys, I have to make a cake for my relative's wedding in August. The wedding will be in a barn and I am unsure if the barn has air conditioning. Any tips on what type of icing or buttercream to use? I am an at home baker and have only made one wedding cake before for an indoor fall wedding. Any tips, tricks, and suggestions would be greatly appreciated. The cake must feed at minimum 125 people and they have not told me what flavor(s) they would like. So right now my main priority is the icing.\nThats in advance!