How to Protect Old Brick Before Applying Spray Foam Insulation?

Hello everyone! I am planning to apply spray foam insulation to the inside of my exterior walls. (I live in an old brick rowhome in Philadelphia.)There is a lot of… Hello everyone! I am planning to apply spray foam insulation to the inside of my exterior walls. (I live in an old brick rowhome in Philadelphia.)There is a lot of…Read MoreGreenBuildingAdvisor