I have a 1920's town home with exterior brick walls. In the upstairs bedroom on the northwest corner, I occasionally see condensation forming and running down the brick wall in the winter. This is probably caused by the warm moist interior air condensing on the relatively cold exposed brick wall.
I applied a few layers of dry-lok to keep the soft mortar from shedding, but this also seems to have stopped some of the condensation.
Is there a product that is similar to the matte clear dry-lok that might be better able to reduce condensation on the brick wall? If not, what other steps might I take in order to reduce the formation of condensation on the brick wall short of furring it out and insulating it?