I apparently painted too late in the day yesterday. Came out this morning in a heavy mist and saw that the last section I painted (about 100 sq. ft) never dried and was dripping. I used Behr ultra latex. I was painting over well washed and preped asbestos shingle siding which generally has good adhesion properties. I wiped the area down and removed all runs. Does this area just need to just dry out before repainting or should i prep it in some way to assure good adhesion. The area adjacent which I painted several hours earlier seems to have dried o.k. Damn fall weather!