I live in an early 1900s two-story brick home in a historic district. The house has, I think, solid masonry walls. It is very cold in the winter, especially near the exterior walls and windows.

Dear Jerry: We are an older couple in our late 60s and have a colonial home, partially brick with a full attic, built in the mid 1920s. We have lived here over 30 years and have had new windows put in ...